carriage return - Page 204

Handle edittexts onKeyListener ?

- by hungson175

Hi everyone, I am creating login screen with 2 editTexts: etUsername and etPassword. On the etUsername, user should input the username and press Enter to go to the edit text etPassword, then he inputs the password, press Enter to login. Here are my current codes: etUsername.setOnKeyListener(new OnKeyListener() { @Override public boolean onKey(View v, int keyCode, KeyEvent event) { if ((keyCode == KeyEvent.KEYCODE_ENTER)) { etPassword.requestFocus(); return true; } else return false; } }); etPassword.setOnKeyListener(new OnKeyListener() { @Override public boolean onKey(View v, int keyCode, KeyEvent event) { if ((keyCode == KeyEvent.KEYCODE_ENTER)) { loginToServer(); return true; } else return false; } }); But when I input the username, and then press Enter – the program tries to log in to the server. In the debug mode, I saw that when I pressed Enter once (on the etUsername) then first: etUsername.onKey() is called and then etPassword.onKey() is also called ! Can anyone please tell me, how to implement what I want ? Thank you very much, Son

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JAVA : How to get the positions of all matches in a String?

- by user692704

I have a text document and a query (the query could be more than one word). I want to find the position of all occurrences of the query in the document. I thought of the documentText.indexOf(query) and using regular expression but I could not make it work. I end up with the following method: First, I have create a dataType called QueryOccurrence public class QueryOccurrence implements Serializable{ public QueryOccurrence(){} private int start; private int end; public QueryOccurrence(int nameStart,int nameEnd,String nameText){ start=nameStart; end=nameEnd; } public int getStart(){ return start; } public int getEnd(){ return end; } public void SetStart(int i){ start=i; } public void SetEnd(int i){ end=i; } } Then, I have used this datatype in the following method: public static List<QueryOccurrence>FindQueryPositions(String documentText, String query){ // Normalize do the following: lower case, trim, and remove punctuation String normalizedQuery = Normalize.Normalize(query); String normalizedDocument = Normalize.Normalize(documentText); String[] documentWords = normalizedDocument.split(" ");; String[] queryArray = normalizedQuery.split(" "); List<QueryOccurrence> foundQueries = new ArrayList(); QueryOccurrence foundQuery = new QueryOccurrence(); int index = 0; for (String word : documentWords) { if (word.equals(queryArray[0])){ foundQuery.SetStart(index); } if (word.equals(queryArray[queryArray.length-1])){ foundQuery.SetEnd(index); if((foundQuery.End()-foundQuery.Start())+1==queryArray.length){ //add the found query to the list foundQueries.add(foundQuery); //flush the foundQuery variable to use it again foundQuery= new QueryOccurrence(); } } index++; } return foundQueries; } This method return a list of all occurrence of the query in the document each one with its position. Could you suggest any easer and faster way to accomplish this task. Thanks

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Without LIB And String file how can i write this code??

- by muhammadlodhi

#include<stdio.h> #include<conio.h> #include<stdlib.h> #include<string.h> struct Node; typedef struct Node * PtrToNode; struct Node { char element; PtrToNode Next; }; PtrToNode MakeEmpty(PtrToNode L) { L= new(Node); L->Next=NULL; return L; } void Push(PtrToNode L,char x) { PtrToNode S; S= new(Node); S->element=x; S->Next=L->Next; L->Next=S; } char Pop(PtrToNode L) { PtrToNode P; P=L->Next; char x=P->element; L->Next=P->Next; free(P); return x; } int main() { PtrToNode L; L= MakeEmpty(NULL); char Input[1000]; int i; printf("please enter your equation:"); scanf("%s",Input); for (i = 0;i<strlen(Input);i++) { if (Input[i]=='(') { Push(L,Input[i]); } if (Input[i]==')') { if (L->Next==NULL) { printf("incorrect"); return 0; } else Pop(L); } } if (L->Next==NULL) printf("correct"); else printf("incorrect"); getch(); return 0; }

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Having trouble using jQuery's .animate() to animate a div from left to right, right to left?

- by Alex

Hello, I seem to be having difficulties using jQuery .animate() to animate an absolutely positioned div from right to left on a button click, and left to right on another button click. I was wondering if you would be willing to help me understand what I'm doing wrong? Thanks. Below is my relevant CSS, HTML, and jQuery code. I can click the #moveLeft button and it wil indeed animate it to the left, but when I click the #moveRight button, nothing happens. Where am I going wrong? Thanks!! CSS #scorecardTwo { position:absolute; padding:5px; width: 300px; background-color:#E1E1E1; right:0px; top:0px; display:none; } HTML text text Left Right jQuery $("#scorecardTwo").fadeIn("slow"); $("#moveLeft").bind("click", function() { var config = { "left" : function() { return $(this).offset().left; }, "right" : function() { return $("body").innerWidth() - $K("#scorecardTwo").width(); } }; $("#scorecardTwo").css(config).animate({"left": "0px"}, "slow"); $(this).attr("disabled", "disabled"); $("#moveRight").attr("disabled", ""); }); $("#moveRight").bind("click", function() { var config = { "left" : function() { return $(this).offset().left; }, "right" : function() { return $("body").innerWidth() - $K("#scorecardTwo").width(); } }; $("#scorecardTwo").css(config).animate({"right" : "0px"}, "slow"); $(this).attr("disabled", "disabled"); $("#moveLeft").attr("disabled", ""); });

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Initializing ExportFactory using MEF

- by Riz

Scenario Application has multiple parts. Each part is in separate dll and implements interface IFoo All such dlls are present in same directory (plugins) The application can instantiate multiple instances of each part Below is the code snippet for the interfaces, part(export) and the import. The problem I am running into is, the "factories" object is initialized with empty list. However, if I try container.Resolve(typeof(IEnumerable< IFoo )) I do get object with the part. But that doesn't serve my purpose (point 4). Can anyone point what I am doing wrong here? public interface IFoo { string Name { get; } } public interface IFooMeta { string CompType { get; } } Implementation of IFoo in separate Dll [ExportMetadata("CompType", "Foo1")] [Export(typeof(IFoo), RequiredCreationPolicy = CreationPolicy.NonShared))] public class Foo1 : IFoo { public string Name { get { return this.GetType().ToString(); } } } Main application that loads all the parts and instantiate them as needed class PartsManager { [ImportMany] private IEnumerable<ExportFactory<IFoo, IFooMeta>> factories; public PartsManager() { IContainer container = ConstructContainer(); factories = (IEnumerable<ExportFactory<IFoo, IFooMeta>>) container.Resolve(typeof(IEnumerable<ExportFactory<IFoo, IFooMeta>>)); } private static IContainer ConstructContainer() { var catalog = new DirectoryCatalog(@"C:\plugins\"); var builder = new ContainerBuilder(); builder.RegisterComposablePartCatalog(catalog); return builder.Build(); } public IFoo GetPart(string compType) { var matchingFactory = factories.FirstOrDefault( x => x.Metadata.CompType == compType); if (factories == null) { return null; } else { IFoo foo = matchingFactory.CreateExport().Value; return foo; } } }

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Addiing captions above images in wordpress

- by jacob

So I added some code in my css and there are boxes that appear over every image that is attached to a post. I've wanted to number the images and show the image number in the box(1...n). I have this in my functions.php function count_images(){ global $post; $thePostID = $post-ID; $parameters = array( 'post_type' = 'attachment', 'post_parent' = $thePostID, 'post_mime_type' = 'image'); $attachments = get_children($parameters); $content = count($attachments); return $content; } add_filter('the_content','count_images'); function caption_image_callback($matches) { $c = count_images(); for ($i=1; $i <= $c; $i++) { if (is_single()) { return ''.$i.' '; } else { return ''; } } } function caption_image($post_body_content) { $post_body_content = preg_replace_callback("||","caption_image_callback",$post_body_content); return $post_body_content; } if ( current_user_can('edit_plugins') ) { add_filter('the_content', 'caption_image'); } If I run only count_images it will show the correct number of attached images to a post(let's say 15). But for some reason the number that is shown in the boxes over the images is always 1. I've seen this done on several blogs with just php so there has to be a way(even if I have to change my whole code). PS: I had to leave spaces in some places

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Trouble understanding the semantics of volatile in Java

- by HungryTux

I've been reading up about the use of volatile variables in Java. I understand that they ensure instant visibility of their latest updates to all the threads running in the system on different cores/processors. However no atomicity of the operations that caused these updates is ensured. I see the following literature being used frequently A write to a volatile field happens-before every read of that same field . This is where I am a little confused. Here's a snippet of code which should help me better explain my query. volatile int x = 0; volatile int y = 0; Thread-0: | Thread-1: | if (x==1) { | if (y==1) { return false; | return false; } else { | } else { y=1; | x=1; return true; | return true; } | } Since x & y are both volatile, we have the following happens-before edges between the write of y in Thread-0 and read of y in Thread-1 between the write of x in Thread-1 and read of x in Thread-0 Does this imply that, at any point of time, only one of the threads can be in its 'else' block(since a write would happen before the read)? It may well be possible that Thread-0 starts, loads x, finds it value as 0 and right before it is about to write y in the else-block, there's a context switch to Thread-1 which loads y finds it value as 0 and thus enters the else-block too. Does volatile guard against such context switches (seems very unlikely)?

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Dynamic programming Approach- Knapsack Puzzle

- by idalsin

I'm trying to solve the Knapsack problem with the dynamical programming(DP) approach, with Python 3.x. My TA pointed us towards this code for a head start. I've tried to implement it, as below: def take_input(infile): f_open = open(infile, 'r') lines = [] for line in f_open: lines.append(line.strip()) f_open.close() return lines def create_list(jewel_lines): #turns the jewels into a list of lists jewels_list = [] for x in jewel_lines: weight = x.split()[0] value = x.split()[1] jewels_list.append((int(value), int(weight))) jewels_list = sorted(jewels_list, key = lambda x : (-x[0], x[1])) return jewels_list def dynamic_grab(items, max_weight): table = [[0 for weight in range(max_weight+1)] for j in range(len(items)+1)] for j in range(1,len(items)+1): val= items[j-1][0] wt= items[j-1][1] for weight in range(1, max_weight+1): if wt > weight: table[j][weight] = table[j-1][weight] else: table[j][weight] = max(table[j-1][weight],table[j-1][weight-wt] + val) result = [] weight = max_weight for j in range(len(items),0,-1): was_added = table[j][weight] != table[j-1][weight] if was_added: val = items[j-1][0] wt = items[j-1][1] result.append(items[j-1]) weight -= wt return result def totalvalue(comb): #total of a combo of items totwt = totval = 0 for val, wt in comb: totwt += wt totval += val return (totval, -totwt) if totwt <= max_weight else (0,0) #required setup of variables infile = "JT_test1.txt" given_input = take_input(infile) max_weight = int(given_input[0]) given_input.pop(0) jewels_list = create_list(given_input) #test lines print(jewels_list) print(greedy_grab(jewels_list, max_weight)) bagged = dynamic_grab(jewels_list, max_weight) print(totalvalue(bagged)) The sample case is below. It is in the format line[0] = bag_max, line[1:] is in form(weight, value): 575 125 3000 50 100 500 6000 25 30 I'm confused as to the logic of this code in that it returns me a tuple and I'm not sure what the output tuple represents. I've been looking at this for a while and just don't understand what the code is pointing me at. Any help would be appreciated.

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overload == (and != , of course) operator, can I bypass == to determine whether the object is null

- by LLS

Hello, when I try to overload operator == and != in C#, and override Equal as recommended, I found I have no way to distinguish a normal object and null. For example, I defined a class Complex. public static bool operator ==(Complex lhs, Complex rhs) { return lhs.Equals(rhs); } public static bool operator !=(Complex lhs, Complex rhs) { return !lhs.Equals(rhs); } public override bool Equals(object obj) { if (obj is Complex) { return (((Complex)obj).Real == this.Real && ((Complex)obj).Imaginary == this.Imaginary); } else { return false; } } But when I want to use if (temp == null) When temp is really null, some exception happens. And I can't use == to determine whether the lhs is null, which will cause infinite loop. What should I do in this situation. One way I can think of is to us some thing like Class.Equal(object, object) (if it exists) to bypass the == when I do the check. What is the normal way to solve the problem?

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PHP function to handle most database queries has a problem with results. I am getting the right numb

- by asdasds

Here is my little function. It does not handle the results correctly. I do get all the rows that I want, but all the rows of the $results array contain the exact same values. So i make 2 arrays, a temporary array to hold the values after each fetch, and another array to hold all the temporary arrays. First i take the temp array and map its keys to the column names. Then i give it to bind_result, and call fetch() and use it like I would any other result value. Could this be because I re-use the $results array? numresults is the number of values you are taking from each row. if 0, you are not getting any results back. function db_query($db, $query, $params = NULL, $numresults = 0) { if($stmt = $db -> prepare($query)) { if($params != NULL) { call_user_func_array(array($stmt, 'bind_param'), $params); } if(!$stmt -> execute()) { //echo 'exec error:',$db->error; return false; } if($numresults > 0) { $results = array(); $tmpresult = array(); $meta = $stmt->result_metadata(); while ($columnName = $meta->fetch_field()) $tmpresult[] = &$results[$columnName->name]; call_user_func_array(array($stmt, 'bind_result'), $tmpresult); $meta->close(); $results = array(); while($stmt -> fetch()) $results[] = $tmpresult; } $stmt -> close(); } else { //echo 'prepare error: ',$db->error; return false; } if($numresults == 0) return true; return $results; }

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c# logic to get the first non-repeating(distinct) character from the string

- by NoviceToDotNet

In c# i want to create logic that if i a string like abcabda is passed to a method then it should return first non repeative character from string like in above it should return c. i am unable to convert a string to array of character then how to make comparison of each array character to the string and return the first non repeative character. CanI make it like this? class A { static void main() { A a=new A(); char ch=a.m1(abcabd); } } class B { char m1(string s) { string s1=s; char[] ch1=new char[s.length]; for(int x=0; x<s.length;x++) { ch1[x]=s[x]; } for(int x=0; x<s.length; x++) { for(int y=0; y<s.lenth; y++) { if(s[x]=ch1[y]) { /// here i am confused how to create logic for comparison please let me know // and how to return the character } } } } }

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php, how to get a array varible value ?

- by NovaYear

$lang['profil_basic_medeni'] = array( 1 => 'Bekâr', 2 => 'Evli', 3 => 'Nisanli', 4 => 'Iliskide', 5 => 'Ayrilmis', 6 => 'Bosanmis' ); $lang['profil_basic_sac'] = array( 1 => 'Normal', 2 => 'Kisa', 3 => 'Orta', 4 => 'Uzun', 5 => 'Fönlü', 6 => 'Saçsiz (Dazlak)', 7 => 'Karisik/Daginik', 8 => 'Her Zaman Bol Jöleli :)' ); function sGetVAL($item,$valno) { $sonuc = $lang[$item][$valno]; return $sonuc; } $tempVAL1 = sGetVAL('profil_basic_medeni','3'); // return null //or $tempVAL2 = sGetVAL('profil_basic_sac','7'); // return null $tempVAL1 or $tempVAL2 always return null. why ? how to fix function sGetVAL ???

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how to create a linked list in java without using util package? [closed]

- by aparna

I do not want to use any of the elements of the UTIL package. I tried but I am not able to get to the next node. Can anyone please help me out? Thanks in advance. I have put up this much. public class Element { private String s; private Element next; } public Element(String s) { this.s = s; this.next = null; } public void setNext(Element e) { this.next = e; } public String getString() { return this.s; } public Element getNext() { return this.next; } public String toString() { return "[" + s + "] => "; } public void add(String s) { int index = 0; System.out.println("Adding at index: " + index); Element curr = new Element(s); Element e = this.data[index]; if (e == null) { this.data[index] = curr; return; } while(e.getNext() != null) { e = e.getNext(); } e.setNext(curr); } }

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How to click multiple instances of the same icon on a webpage? (Javascript)

- by akd

I want to write a script that will click every instance of a certain icon. The following code is from the source that is what I want to click on. It has a onclick event defined, I just don't know how to search the page for these icons and then click on them. Can anyone help? Thanks. <dd><a href="javascript:void(0);" onclick="RecommendItem(1,'article','6106925','1','recommendstatus_article6106925' ); return false;" onmouseover="return overlib('Give thumbs up', WRAP);" onmouseout="return nd();"> <img class='icon' title='' alt='Thumb up' style='background-position: -304px -48px;' src='http://geekdo-images.com/images/pixel.gif' /></a></dd> <dt class='tippers'><a href="javascript://" style='color: #969600;' onclick="RecSpy( 'article', '6106925', 'tippers' ); return false;"></a></dt>

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Unit Conversion from feet to meters

- by user1742419

I have to write a program that reads in a length in feet and inches and outputs the equivalent length in meters and centimeters. I have to create three functions: one for input, one or more for calculating, and one for output; And include a loop that lets the user repeat this computation for new input values until the user says he or she wants to end the program. I can't seem to get the input from one function to be used in the conversion function and then outputted by the next function. How do I do that? Thank you. #include <iostream> #include <conio.h> using namespace std; double leng; void length(double leng); double conv(double leng); void output(double leng); int main() { length(leng); conv(leng); output(leng); _getche(); return 0; } void length(double leng) { cout<<"Enter a length in feet, then enter a length in inches if needed: "; cin>>leng; return; } double conv(double leng) { return leng = leng * .3048; } void output(double leng) { cout<<"Your input is converted to "<<leng; return; }

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delegate issues in Xcode

- by trludt

.h file #import <UIKit/UIKit.h> @interface AddEventViewController : UIViewController <UITextViewDelegate> @end .m file @property (weak, nonatomic) IBOutlet UITextField *textField1; @property (weak, nonatomic) IBOutlet UITextField *textField2; @property (weak, nonatomic) IBOutlet UITextField *textField3; - (IBAction)textFieldReturn:(id)sender; @end @implementation AddEventViewController @synthesize textField1, textField2, textField3; - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil { self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]; if (self) { // Custom initialization } return self; } - (IBAction)textFieldReturn:(id)sender; { [sender resignFirstResponder]; } - (void)viewDidLoad { [super viewDidLoad]; self.textField1.delegate = self; textField1.delegate = self; // Do any additional setup after loading the view. } - (void)didReceiveMemoryWarning { [super didReceiveMemoryWarning]; // Dispose of any resources that can be recreated. } - (void)touchesBegan: (NSSet *) touches withEvent: (UIEvent *)event { if (textField1) { if ([textField1 canResignFirstResponder]) [textField1 resignFirstResponder]; } [super touchesBegan: touches withEvent: event]; if (textField2) { if ([textField2 canResignFirstResponder]) [textField2 resignFirstResponder]; } [super touchesBegan: touches withEvent: event]; if (textField3) { if ([textField3 canResignFirstResponder]) [textField3 resignFirstResponder]; } [super touchesBegan: touches withEvent: event]; } - (BOOL)textFieldShouldReturn:(UITextField *)textField { [textField1 resignFirstResponder]; return NO; [textField2 resignFirstResponder]; return NO; [textField3 resignFirstResponder]; return NO; } @end Ok so im getting the yellow bug symbol on the lines: - (void)viewDidLoad { [super viewDidLoad]; self.textField1.delegate = self; textField1.delegate = self; } I don't know how to delegate all of my textFields? how do i make this textFieldReturn work for all of my textFields.. that viewDidLoad area has to be the problem, because everything else works good...

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Friendly way to override `const`-overloaded member function?

- by xtofl

Given a base class class A { int i; public: int& f(){ return i;} const int& f() const { return i;} }; And a sub class class ConstA : private A { public: const int& f() const { return A::f(); } }; Is there a wrist-friendly way to access the ConstA::f method on a non-const variable? ConstA ca; int i = ca.f(); // compile error: int& A::f() is not accessible since A is privately inherited int j = static_cast<const ConstA&>(ca).f(); // this works, but it hurts a little... Or is it so ugly since hiding A::f generally is a bad idea, violating the Liskov Substitution Principle: any subclass of A must at least be capable of all A's functionality? void set( A& a, int i ) { a.f() = i; } class ConstA2 : public A { private: int& f(){ return A::f(); } }; ConstA2 ca2; set( ca2, 1 ); (Note: this question popped up while thinking about this question)

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(again) i improve my question [closed]

- by gcc

Possible Duplicate: realizing number …how?? i hold input like that A is char pointer A[0]=n A[1]=j A[2]=n // i take (one number)+special char(s)+command(s) (like $ or #) from user A[3]=d // the input order can be changed like char(s)+number+command . // there is one number in A[] . // and every A[i] is important for me because what will i do in next step . // is determined by that input in A[h] or A[n] . // example . // when you see $ go before array do something . // when you see number go farad equation and use it in there A[j]=$ // (number can be pozitif or negatif . A[i]=14(any number) . . int func(int temp) { if(temp=='n') //..do something then return 10; if(temp=='j') return 11; if(temp=='d') return 12; if(/*........*/) // when temp find/realize number ,i wanna return 13; // in if statement, (instead of .....) what code should i write } how i can do } NOTE::please ,dont close my question ,when you close icannot edit it

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Sending Messages to SignalR Hubs from the Outside

- by Ricardo Peres

Introduction You are by now probably familiarized with SignalR, Microsoft’s API for real-time web functionality. This is, in my opinion, one of the greatest products Microsoft has released in recent time. Usually, people login to a site and enter some page which is connected to a SignalR hub. Then they can send and receive messages – not just text messages, mind you – to other users in the same hub. Also, the server can also take the initiative to send messages to all or a specified subset of users on its own, this is known as server push. The normal flow is pretty straightforward, Microsoft has done a great job with the API, it’s clean and quite simple to use. And for the latter – the server taking the initiative – it’s also quite simple, just involves a little more work. The Problem The API for sending messages can be achieved from inside a hub – an instance of the Hub class – which is something that we don’t have if we are the server and we want to send a message to some user or group of users: the Hub instance is only instantiated in response to a client message. The Solution It is possible to acquire a hub’s context from outside of an actual Hub instance, by calling GlobalHost.ConnectionManager.GetHubContext<T>(). This API allows us to: Broadcast messages to all connected clients (possibly excluding some); Send messages to a specific client; Send messages to a group of clients. So, we have groups and clients, each is identified by a string. Client strings are called connection ids and group names are free-form, given by us. The problem with client strings is, we do not know how these map to actual users. One way to achieve this mapping is by overriding the Hub’s OnConnected and OnDisconnected methods and managing the association there. Here’s an example: 1: public class MyHub : Hub 2: { 3: private static readonly IDictionary<String, ISet<String>> users = new ConcurrentDictionary<String, ISet<String>>(); 4: 5: public static IEnumerable<String> GetUserConnections(String username) 6: { 7: ISet<String> connections; 8: 9: users.TryGetValue(username, out connections); 10: 11: return (connections ?? Enumerable.Empty<String>()); 12: } 13: 14: private static void AddUser(String username, String connectionId) 15: { 16: ISet<String> connections; 17: 18: if (users.TryGetValue(username, out connections) == false) 19: { 20: connections = users[username] = new HashSet<String>(); 21: } 22: 23: connections.Add(connectionId); 24: } 25: 26: private static void RemoveUser(String username, String connectionId) 27: { 28: users[username].Remove(connectionId); 29: } 30: 31: public override Task OnConnected() 32: { 33: AddUser(this.Context.Request.User.Identity.Name, this.Context.ConnectionId); 34: return (base.OnConnected()); 35: } 36: 37: public override Task OnDisconnected() 38: { 39: RemoveUser(this.Context.Request.User.Identity.Name, this.Context.ConnectionId); 40: return (base.OnDisconnected()); 41: } 42: } As you can see, I am using a static field to store the mapping between a user and its possibly many connections – for example, multiple open browser tabs or even multiple browsers accessing the same page with the same login credentials. The user identity, as is normal in .NET, is obtained from the IPrincipal which in SignalR hubs case is stored in Context.Request.User. Of course, this property will only have a meaningful value if we enforce authentication. Another way to go is by creating a group for each user that connects: 1: public class MyHub : Hub 2: { 3: public override Task OnConnected() 4: { 5: this.Groups.Add(this.Context.ConnectionId, this.Context.Request.User.Identity.Name); 6: return (base.OnConnected()); 7: } 8: 9: public override Task OnDisconnected() 10: { 11: this.Groups.Remove(this.Context.ConnectionId, this.Context.Request.User.Identity.Name); 12: return (base.OnDisconnected()); 13: } 14: } In this case, we will have a one-to-one equivalence between users and groups. All connections belonging to the same user will fall in the same group. So, if we want to send messages to a user from outside an instance of the Hub class, we can do something like this, for the first option – user mappings stored in a static field: 1: public void SendUserMessage(String username, String message) 2: { 3: var context = GlobalHost.ConnectionManager.GetHubContext<MyHub>(); 4: 5: foreach (String connectionId in HelloHub.GetUserConnections(username)) 6: { 7: context.Clients.Client(connectionId).sendUserMessage(message); 8: } 9: } And for using groups, its even simpler: 1: public void SendUserMessage(String username, String message) 2: { 3: var context = GlobalHost.ConnectionManager.GetHubContext<MyHub>(); 4: 5: context.Clients.Group(username).sendUserMessage(message); 6: } Using groups has the advantage that the IHubContext interface returned from GetHubContext has direct support for groups, no need to send messages to individual connections. Of course, you can wrap both mapping options in a common API, perhaps exposed through IoC. One example of its interface might be: 1: public interface IUserToConnectionMappingService 2: { 3: //associate and dissociate connections to users 4: 5: void AddUserConnection(String username, String connectionId); 6: 7: void RemoveUserConnection(String username, String connectionId); 8: } SignalR has built-in dependency resolution, by means of the static GlobalHost.DependencyResolver property: 1: //for using groups (in the Global class) 2: GlobalHost.DependencyResolver.Register(typeof(IUserToConnectionMappingService), () => new GroupsMappingService()); 3: 4: //for using a static field (in the Global class) 5: GlobalHost.DependencyResolver.Register(typeof(IUserToConnectionMappingService), () => new StaticMappingService()); 6: 7: //retrieving the current service (in the Hub class) 8: var mapping = GlobalHost.DependencyResolver.Resolve<IUserToConnectionMappingService>(); Now all you have to do is implement GroupsMappingService and StaticMappingService with the code I shown here and change SendUserMessage method to rely in the dependency resolver for the actual implementation. Stay tuned for more SignalR posts!

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403 error after adding javascript to masterpage for sharepoint.

- by Jeremy

I am attempting to add highslide-with-html.js from http://highslide.com/ to my masterpage. I am receiving a 403 forbidden error when I use the provided masterpage. I have placed it in C:\Program Files\Common Files\Microsoft Shared\web server extensions\12\TEMPLATE\LAYOUTS\1033. Test javascript files such as pirate.js which consists solely of alert("Arr!"); have loaded from the same directory. I have provided the code for the masterpage. When I do not reference the problem javascript file there is no 403 error. <%@ Master language="C#" %> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <%@ Import Namespace="Microsoft.SharePoint" %> <%@ Register Tagprefix="SPSWC" Namespace="Microsoft.SharePoint.Portal.WebControls" Assembly="Microsoft.SharePoint.Portal, Version=12.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" %> <%@ Register Tagprefix="SharePoint" Namespace="Microsoft.SharePoint.WebControls" Assembly="Microsoft.SharePoint, Version=12.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" %> <%@ Register Tagprefix="WebPartPages" Namespace="Microsoft.SharePoint.WebPartPages" Assembly="Microsoft.SharePoint, Version=12.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" %> <%@ Register Tagprefix="PublishingWebControls" Namespace="Microsoft.SharePoint.Publishing.WebControls" Assembly="Microsoft.SharePoint.Publishing, Version=12.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" %> <%@ Register Tagprefix="PublishingNavigation" Namespace="Microsoft.SharePoint.Publishing.Navigation" Assembly="Microsoft.SharePoint.Publishing, Version=12.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" %> <%@ Register TagPrefix="wssuc" TagName="Welcome" src="~/_controltemplates/Welcome.ascx" %> <%@ Register TagPrefix="wssuc" TagName="DesignModeConsole" src="~/_controltemplates/DesignModeConsole.ascx" %> <%@ Register TagPrefix="PublishingVariations" TagName="VariationsLabelMenu" src="~/_controltemplates/VariationsLabelMenu.ascx" %> <%@ Register Tagprefix="PublishingConsole" TagName="Console" src="~/_controltemplates/PublishingConsole.ascx" %> <%@ Register TagPrefix="PublishingSiteAction" TagName="SiteActionMenu" src="~/_controltemplates/PublishingActionMenu.ascx" %> <html dir="<%$Resources:wss, multipages_direction_dir_value %>" runat="server" __expr-val-dir="ltr"> <head runat="server"> <meta name="GENERATOR" content="Microsoft SharePoint"> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <meta http-equiv="Expires" content="0"> <SharePoint:RobotsMetaTag runat="server" __designer:Preview="" __designer:Values="<P N='InDesign' T='False' /><P N='ID' T='ctl00' /><P N='Page' ID='1' /><P N='TemplateControl' ID='2' /><P N='AppRelativeTemplateSourceDirectory' R='-1' />"/> <title id="onetidTitle"> <asp:ContentPlaceHolder id="PlaceHolderPageTitle" runat="server"/> </title> <Sharepoint:CssLink runat="server" __designer:Preview="<link rel="stylesheet" type="text/css" href="/Style%20Library/en-US/Core%20Styles/Band.css"/> <link rel="stylesheet" type="text/css" href="/Style%20Library/en-US/Core%20Styles/controls.css"/> <link rel="stylesheet" type="text/css" href="/Style%20Library/zz1_blue.css"/> <link rel="stylesheet" type="text/css" href="/_layouts/1033/styles/core.css"/> " __designer:Values="<P N='InDesign' T='False' /><P N='ID' T='ctl01' /><P N='Page' ID='1' /><P N='TemplateControl' ID='2' /><P N='AppRelativeTemplateSourceDirectory' R='-1' />"/>  <SharePoint:CssRegistration name="<% $SPUrl:~SiteCollection/Style Library/~language/Core Styles/Band.css%>" runat="server" __designer:Preview="<link rel="stylesheet" type="text/css" href="/Style%20Library/en-US/Core%20Styles/Band.css"/> " __designer:Values="<P N='Name' Bound='True' T='SPUrl:~SiteCollection/Style Library/~language/Core Styles/Band.css' /><P N='InDesign' T='False' /><P N='ID' T='ctl02' /><P N='Page' ID='1' /><P N='TemplateControl' ID='2' /><P N='AppRelativeTemplateSourceDirectory' R='-1' />"/> <SharePoint:CssRegistration name="<% $SPUrl:~sitecollection/Style Library/~language/Core Styles/controls.css %>" runat="server" __designer:Preview="<link rel="stylesheet" type="text/css" href="/Style%20Library/en-US/Core%20Styles/controls.css"/> " __designer:Values="<P N='Name' Bound='True' T='SPUrl:~sitecollection/Style Library/~language/Core Styles/controls.css' /><P N='InDesign' T='False' /><P N='ID' T='ctl03' /><P N='Page' ID='1' /><P N='TemplateControl' ID='2' /><P N='AppRelativeTemplateSourceDirectory' R='-1' />"/> <SharePoint:CssRegistration name="<% $SPUrl:~SiteCollection/Style Library/zz1_blue.css%>" runat="server" __designer:Preview="<link rel="stylesheet" type="text/css" href="/Style%20Library/zz1_blue.css"/> " __designer:Values="<P N='Name' Bound='True' T='SPUrl:~SiteCollection/Style Library/zz1_blue.css' /><P N='InDesign' T='False' /><P N='ID' T='ctl04' /><P N='Page' ID='1' /><P N='TemplateControl' ID='2' /><P N='AppRelativeTemplateSourceDirectory' R='-1' />"/> <SharePoint:ScriptLink name="init.js" runat="server" __designer:Preview="<script src="/_layouts/1033/init.js?rev=VhAxGc3rkK79RM90tibDzw%3D%3D"></script> " __designer:Values="<P N='Name' T='init.js' /><P N='InDesign' T='False' /><P N='ID' T='ctl05' /><P N='Page' ID='1' /><P N='TemplateControl' ID='2' /><P N='AppRelativeTemplateSourceDirectory' R='-1' />"/> <SharePoint:ScriptLink Name="highslide-with-html.js" runat="server" __designer:Error="Access to the path 'C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\12\Template\layouts\1033\highslide-with-html.js' is denied."/>  <asp:ContentPlaceHolder id="PlaceHolderAdditionalPageHead" runat="server"/> </head> <body class="body" onload="javascript:_spBodyOnLoadWrapper();"> <WebPartPages:SPWebPartManager runat="server"/> <form runat="server" onsubmit="return _spFormOnSubmitWrapper();"> <table cellpadding="0" cellspacing="0" class="master"> <tr> <td height="100%" class="shadowLeft"> <div class="spacer"> </div> </td> <td valign="top"> <table cellpadding="0" cellspacing="0" width="100%" class="masterContent"> <tr style="height:0px"><td> <wssuc:DesignModeConsole id="IdDesignModeConsole" runat="server" __designer:Preview="<span __designer:NonVisual="true">[ DesignModeConsoleContainer "DesignModeContainer" ]</span> " __designer:Values="<P N='ID' ID='1' T='IdDesignModeConsole' /><P N='TemplateControl' R='0' />"/></td></tr> <tr> <td colspan="2" class="authoringRegion"> <span class="siteActionMenu"> <PublishingSiteAction:SiteActionMenu runat="server" __designer:Preview="  <table height=100% class="ms-siteaction" cellpadding=0 cellspacing=0> <tr> <td class="ms-siteactionsmenu" id="siteactiontd"> <span style="display:none"><menu type='ServerMenu' id="zz1_SiteActionsMenuMain" largeIconMode="true"><ie:menuitem id="zz2_MenuItem_Create" type="option" iconSrc="/_layouts/images/Actionscreate.gif" onMenuClick="window.location = '/_layouts/create.aspx';" menuGroupId="100"></ie:menuitem><ie:menuitem id="zz3_MenuItem_Settings" type="option" iconSrc="/_layouts/images/ActionsSettings.gif" onMenuClick="window.location = '/_layouts/settings.aspx';" menuGroupId="100"></ie:menuitem></menu></span><div><div><span title="Open Menu"><div id="zz4_SiteActionsMenu_t" class="" onmouseover="MMU_PopMenuIfShowing(this);MMU_EcbTableMouseOverOut(this, true)" hoverActive="ms-siteactionsmenuhover" hoverInactive="" onclick=" MMU_Open(byid(''), MMU_GetMenuFromClientId('zz4_SiteActionsMenu'),event,false, null, 0);" foa="MMU_GetMenuFromClientId('zz4_SiteActionsMenu')" oncontextmenu="this.click(); return false;" nowrap="nowrap"><a id="zz4_SiteActionsMenu" accesskey="/" href="#" onclick="javascript:return false;" style="cursor:pointer;white-space:nowrap;" onfocus="MMU_EcbLinkOnFocusBlur(byid(''), this, true);" onkeydown="MMU_EcbLinkOnKeyDown(byid(''), MMU_GetMenuFromClientId('zz4_SiteActionsMenu'), event);" onclick=" MMU_Open(byid(''), MMU_GetMenuFromClientId('zz4_SiteActionsMenu'),event,false, null, 0);" oncontextmenu="this.click(); return false;" menuTokenValues="MENUCLIENTID=zz4_SiteActionsMenu,TEMPLATECLIENTID=zz1_SiteActionsMenuMain" serverclientid="zz4_SiteActionsMenu">Site Actions<img src="/_layouts/images/blank.gif" border="0" alt="Use SHIFT+ENTER to open the menu (new window)."/></a><img align="absbottom" src="/_layouts/images/whitearrow.gif" alt="" /></div></span></div></div> </td> </tr> </table>  " __designer:Values="<P N='TemplateControl' R='0' />"/> </span> <div class="sharepointLogin">  <table cellpadding="0" cellspacing="0" > <tr> <td class="ms-globallinks"> <SharePoint:DelegateControl ControlId="GlobalSiteLink1" Scope="Farm" runat="server" __designer:Preview="<span style='padding-left:3px'></span> <a id="ctl00_ctl09_hlMySite" href="http://litwaredemo:80/MySite/_layouts/MySite.aspx">My Site</a> <span style='padding-left:4px;padding-right:3px'>|</span> " __designer:Values="<P N='ControlId' T='GlobalSiteLink1' /><P N='Scope' T='Farm' /><P N='ID' T='ctl08' /><P N='Page' ID='1' /><P N='TemplateControl' ID='2' /><P N='AppRelativeTemplateSourceDirectory' R='-1' />"/></td> <td class="ms-globallinks"> <SharePoint:DelegateControl ControlId="GlobalSiteLink2" Scope="Farm" runat="server" __designer:Preview="<span id="ctl00_ctl11_MyLinksMenu"><span style="display:none"><menu type='ServerMenu' id="ctl00_ctl11_MyLinksMenuMenuTemplate" largeIconMode="true"></menu></span><span title="Open Menu"><span id="ctl00_ctl11_MyLinksMenuMenu_t" class="ms-SPLink ms-hovercellinactive" onmouseover="MMU_PopMenuIfShowing(this);MMU_EcbTableMouseOverOut(this, true)" hoverActive="ms-SPLink ms-hovercellactive" hoverInactive="ms-SPLink ms-hovercellinactive" onclick="javascript:FetchCallbackMenuItems(&#39;ctl00_ctl11_MyLinksMenuMenuTemplate&#39;); MMU_Open(byid('ctl00_ctl11_MyLinksMenuMenuTemplate'), MMU_GetMenuFromClientId('ctl00_ctl11_MyLinksMenuMenu'),event,true, null, 0);" foa="MMU_GetMenuFromClientId('ctl00_ctl11_MyLinksMenuMenu')" oncontextmenu="this.click(); return false;" nowrap="nowrap"><a id="ctl00_ctl11_MyLinksMenuMenu" accesskey="M" href="#" onclick="javascript:return false;" style="cursor:pointer;white-space:nowrap;" onfocus="MMU_EcbLinkOnFocusBlur(byid('ctl00_ctl11_MyLinksMenuMenuTemplate'), this, true);" onkeydown="MMU_EcbLinkOnKeyDown(byid('ctl00_ctl11_MyLinksMenuMenuTemplate'), MMU_GetMenuFromClientId('ctl00_ctl11_MyLinksMenuMenu'), event);" onclick="javascript:FetchCallbackMenuItems(&#39;ctl00_ctl11_MyLinksMenuMenuTemplate&#39;); MMU_Open(byid('ctl00_ctl11_MyLinksMenuMenuTemplate'), MMU_GetMenuFromClientId('ctl00_ctl11_MyLinksMenuMenu'),event,true, null, 0);" oncontextmenu="this.click(); return false;" menuTokenValues="MENUCLIENTID=ctl00_ctl11_MyLinksMenuMenu,TEMPLATECLIENTID=ctl00_ctl11_MyLinksMenuMenuTemplate" serverclientid="ctl00_ctl11_MyLinksMenuMenu">My Links<img src="/_layouts/images/blank.gif" border="0" alt="Use SHIFT+ENTER to open the menu (new window)."/></a><img align="absbottom" src="/_layouts/images/menudark.gif" alt="" /></span></span></span>|" __designer:Values="<P N='ControlId' T='GlobalSiteLink2' /><P N='Scope' T='Farm' /><P N='ID' T='ctl10' /><P N='Page' ID='1' /><P N='TemplateControl' ID='2' /><P N='AppRelativeTemplateSourceDirectory' R='-1' />"/></td> <td class="ms-globallinks"> <wssuc:Welcome id="explitLogout" runat="server" __designer:Preview=" <span style="display:none"><menu type='ServerMenu' id="zz5_ID_PersonalActionMenu" largeIconMode="true"><ie:menuitem id="zz6_ID_PersonalInformation" type="option" iconSrc="/_layouts/images/menuprofile.gif" onMenuClick="javascript:GoToPage('\u002f_layouts\u002fuserdisp.aspx?Force=True\u0026ID=' + _spUserId);return false;" menuGroupId="100"></ie:menuitem><ie:menuitem id="zz7_ID_LoginAsDifferentUser" type="option" onMenuClick="javascript:LoginAsAnother('\u002f_layouts\u002fAccessDenied.aspx?loginasanotheruser=true', 0)" menuGroupId="200"></ie:menuitem><ie:menuitem id="zz8_ID_RequestAccess" type="option" onMenuClick="window.location = '/_layouts/reqacc.aspx?type=list&amp;name=%7B36F0105B%2D0F8E%2D4A22%2DBE90%2D716A51E97B5D%7D';" menuGroupId="200"></ie:menuitem><ie:menuitem id="zz9_ID_Logout" type="option" onMenuClick="window.location = '/_layouts/SignOut.aspx';" menuGroupId="200"></ie:menuitem></menu></span><span title="Open Menu"><div id="zz10_Menu_t" class="ms-SPLink ms-SpLinkButtonInActive" onmouseover="MMU_PopMenuIfShowing(this);MMU_EcbTableMouseOverOut(this, true)" hoverActive="ms-SPLink ms-SpLinkButtonActive" hoverInactive="ms-SPLink ms-SpLinkButtonInActive" onclick=" MMU_Open(byid(''), MMU_GetMenuFromClientId('zz10_Menu'),event,false, null, 0);" foa="MMU_GetMenuFromClientId('zz10_Menu')" oncontextmenu="this.click(); return false;" nowrap="nowrap"><a id="zz10_Menu" accesskey="L" href="#" onclick="javascript:return false;" style="cursor:pointer;white-space:nowrap;" onfocus="MMU_EcbLinkOnFocusBlur(byid(''), this, true);" onkeydown="MMU_EcbLinkOnKeyDown(byid(''), MMU_GetMenuFromClientId('zz10_Menu'), event);" onclick=" MMU_Open(byid(''), MMU_GetMenuFromClientId('zz10_Menu'),event,false, null, 0);" oncontextmenu="this.click(); return false;" menuTokenValues="MENUCLIENTID=zz10_Menu,TEMPLATECLIENTID=zz5_ID_PersonalActionMenu" serverclientid="zz10_Menu">Welcome LitwareInc Administrator<img src="/_layouts/images/blank.gif" border="0" alt="Use SHIFT+ENTER to open the menu (new window)."/></a><img align="absbottom" src="/_layouts/images/menudark.gif" alt="" /></div></span><script type="text/javascript" language="javascript">var _spUserId=1;</script> <a id="explitLogout_ExplicitLogin" Href="_controltemplates/http://litwaredemo/_layouts/Authenticate.aspx" style="display:none">Sign In</a> " __designer:Values="<P N='ID' ID='1' T='explitLogout' /><P N='TemplateControl' R='0' />"/></td> </tr> </table> </div> <div class="console"> <PublishingConsole:Console runat="server" __designer:Preview="  <span id="ctl00_publishingContext1"></span> <script type="text/javascript" language="javascript">if (document.getElementById('mpdmconsole')) { ShowConsoleBlockPaddingWithOverhang('mpLeftBackPadding', 'mpRightBackPadding', 'masterPageLeftOverhang', 'masterPageRightOverhang'); } </script>  " __designer:Values="<P N='TemplateControl' R='0' />"/> </div> </td> </tr> <tr> <td colspan="2" > <table cellpadding="0" cellspacing="0" width="100%"> <tr> <td colspan="4" class="topArea"> <SharePoint:AspMenu ID="logoLinkId" runat="server" DataSourceID="SiteMapDataSourceRoot" StaticDisplayLevels="1" MaximumDynamicDisplayLevels="0" AccessKey="1" CssClass="logo" __designer:Preview="<table id="zz12_logoLinkId" class="logo" cellpadding="0" cellspacing="0" border="0"> <tr id="zz12_logoLinkIdn0"> <td><table cellpadding="0" cellspacing="0" border="0" width="100%"> <tr> <td style="white-space:nowrap;width:100%;"><a Href="/Pages/Default.aspx" accesskey="1" style="text-decoration:none;">Home</a></td> </tr> </table></td> </tr> </table>" __designer:Values="<P N='ID' T='logoLinkId' /><P N='MaximumDynamicDisplayLevels' T='0' /><P N='DataSourceID' T='SiteMapDataSourceRoot' /><P N='AccessKey' T='1' /><P N='ControlStyle'><P N='CssClass' ID='1' T='logo' /><P N='Font' ID='2' /><P N='IsEmpty' T='False' /></P><P N='CssClass' R='1' /><P N='Font' R='2' /><P N='Page' ID='3' /><P N='TemplateControl' ID='4' /><P N='AppRelativeTemplateSourceDirectory' R='-1' />" __designer:Templates="<Group Name="Item Templates"><Template Name="StaticItemTemplate" Flags="D" Content="" /><Template Name="DynamicItemTemplate" Flags="D" Content="" /></Group>"/> <PublishingNavigation:PortalSiteMapDataSource ID="SiteMapDataSourceRoot" Runat="server" SiteMapProvider="CombinedNavSiteMapProvider" EnableViewState="true" StartFromCurrentNode="true" StartingNodeOffset="0" ShowStartingNode="true" __designer:Preview="<table cellpadding=4 cellspacing=0 style="font:messagebox;color:buttontext;background-color:buttonface;border: solid 1px;border-top-color:buttonhighlight;border-left-color:buttonhighlight;border-bottom-color:buttonshadow;border-right-color:buttonshadow"> <tr><td nowrap><span style="font-weight:bold">PortalSiteMapDataSource</span> - SiteMapDataSourceRoot</td></tr> <tr><td></td></tr> </table>" __designer:Values="<P N='ID' T='SiteMapDataSourceRoot' /><P N='SiteMapProvider' T='CombinedNavSiteMapProvider' /><P N='StartFromCurrentNode' T='True' /><P N='Page' ID='1' /><P N='TemplateControl' ID='2' /><P N='AppRelativeTemplateSourceDirectory' R='-1' />"/> <div class="topLinkBar"> <div class="topLink"> <PublishingVariations:VariationsLabelMenu id="labelmenu1" runat="server" __designer:Preview="<span __designer:NonVisual="true"><table cellpadding=4 cellspacing=0 style="font:messagebox;color:buttontext;background-color:buttonface;border: solid 1px;border-top-color:buttonhighlight;border-left-color:buttonhighlight;border-bottom-color:buttonshadow;border-right-color:buttonshadow"> <tr><td nowrap><span style="font-weight:bold">VariationDataSource</span> - LabelMenuDataSource</td></tr> <tr><td></td></tr> </table></span> " __designer:Values="<P N='ID' ID='1' T='labelmenu1' /><P N='TemplateControl' R='0' />"/> </div> </div> </td> </tr> <tr class="topNavContainer"> <td class="topNavRoundLeft"> <div class="glassSpacerLeft" /> </td> <td valign="top" width="100%"> <SharePoint:AspMenu ID="GlobalNav" Runat="server" DataSourceID="SiteMapDataSource1" Orientation="Horizontal" StaticDisplayLevels="1" MaximumDynamicDisplayLevels="1" StaticSubMenuIndent="0" DynamicHorizontalOffset="0" DynamicVerticalOffset="-8" StaticEnableDefaultPopOutImage="false" ItemWrap="false" SkipLinkText="<%$Resources:cms,masterpages_skiplinktext%>" CssClass="topNav" __designer:Preview="<table id="zz13_GlobalNav" class="topNav" cellpadding="0" cellspacing="0" border="0"> <tr> <td title="Document Center site" id="zz13_GlobalNavn0"><table class="topNavItem" cellpadding="0" cellspacing="0" border="0" width="100%"> <tr> <td style="white-space:nowrap;"><a class="topNavItem" Href="/Docs" style="text-decoration:none;border-style:none;">Document Center</a></td> </tr> </table></td><td style="width:0px;"></td><td style="width:0px;"></td><td title="Company News Home" id="zz13_GlobalNavn1"><table class="topNavItem" cellpadding="0" cellspacing="0" border="0" width="100%"> <tr> <td style="white-space:nowrap;"><a class="topNavItem" Href="/News/Pages/Default.aspx" style="text-decoration:none;border-style:none;">News</a></td> </tr> </table></td><td style="width:0px;"></td><td style="width:0px;"></td><td title="Report Center" id="zz13_GlobalNavn2"><table class="topNavItem" cellpadding="0" cellspacing="0" border="0" width="100%"> <tr> <td style="white-space:nowrap;"><a class="topNavItem" Href="/Reports/Pages/Default.aspx" style="text-decoration:none;border-style:none;">Reports</a></td> </tr> </table></td><td style="width:0px;"></td><td style="width:0px;"></td><td title="The Search Center displays search results" id="zz13_GlobalNavn3"><table class="topNavItem" cellpadding="0" cellspacing="0" border="0" width="100%"> <tr> <td style="white-space:nowrap;"><a class="topNavItem" Href="/SearchCenter/Pages/default.aspx" style="text-decoration:none;border-style:none;">Search</a></td> </tr> </table></td><td style="width:0px;"></td><td style="width:0px;"></td><td title="Site Directory web" id="zz13_GlobalNavn4"><table class="topNavItem" cellpadding="0" cellspacing="0" border="0" width="100%"> <tr> <td style="white-space:nowrap;"><a class="topNavItem" Href="/SiteDirectory/Pages/category.aspx" style="text-decoration:none;border-style:none;">Sites</a></td> </tr> </table></td><td style="width:0px;"></td> </tr> </table>" __designer:Values="<P N='ID' T='GlobalNav' /><P N='DynamicHoverStyle'><P N='CssClass' T='topNavFlyOutsHover' /><P N='IsEmpty' T='False' /></P><P N='DynamicMenuItemStyle'><P N='CssClass' T='topNavFlyOutsItem' /><P N='IsEmpty' T='False' /></P><P N='DynamicMenuStyle'><P N='CssClass' T='topNavFlyOuts' /><P N='IsEmpty' T='False' /></P><P N='DynamicVerticalOffset' T='-8' /><P N='MaximumDynamicDisplayLevels' T='1' /><P N='Orientation' E='0' /><P N='SkipLinkText' Bound='True' T='Resources:cms,masterpages_skiplinktext' /><P N='StaticEnableDefaultPopOutImage' T='False' /><P N='StaticHoverStyle'><P N='CssClass' T='topNavHover' /><P N='IsEmpty' T='False' /></P><P N='StaticMenuItemStyle'><P N='CssClass' T='topNavItem' /><P N='ItemSpacing' T='0px' /><P N='IsEmpty' T='False' /></P><P N='StaticSelectedStyle'><P N='CssClass' T='topNavSelected' /><P N='ItemSpacing' T='0px' /><P N='IsEmpty' T='False' /></P><P N='StaticSubMenuIndent' T='0px' /><P N='DataSourceID' T='SiteMapDataSource1' /><P N='ControlStyle'><P N='CssClass' ID='1' T='topNav' /><P N='Font' ID='2' /><P N='IsEmpty' T='False' /></P><P N='CssClass' R='1' /><P N='Font' R='2' /><P N='Page' ID='3' /><P N='TemplateControl' ID='4' /><P N='AppRelativeTemplateSourceDirectory' R='-1' />" __designer:Templates="<Group Name="Item Templates"><Template Name="StaticItemTemplate" Flags="D" Content="" /><Template Name="DynamicItemTemplate" Flags="D" Content="" /></Group>"> <StaticMenuItemStyle CssClass="topNavItem" ItemSpacing="0"/> <StaticSelectedStyle CssClass="topNavSelected" ItemSpacing="0"/> <StaticHoverStyle CssClass="topNavHover"/> <DynamicMenuStyle CssClass="topNavFlyOuts" /> <DynamicMenuItemStyle CssClass="topNavFlyOutsItem" /> <DynamicHoverStyle CssClass="topNavFlyOutsHover"/> </SharePoint:AspMenu> <PublishingNavigation:PortalSiteMapDataSource ID="siteMapDataSource1" Runat="server" SiteMapProvider="CombinedNavSiteMapProvider" EnableViewState="true" StartFromCurrentNode="true" StartingNodeOffset="0" ShowStartingNode="false" TreatStartingNodeAsCurrent="true" TrimNonCurrentTypes="Heading" __designer:Preview="<table cellpadding=4 cellspacing=0 style="font:messagebox;color:buttontext;background-color:buttonface;border: solid 1px;border-top-color:buttonhighlight;border-left-color:buttonhighlight;border-bottom-color:buttonshadow;border-right-color:buttonshadow"> <tr><td nowrap><span style="font-weight:bold">PortalSiteMapDataSource</span> - siteMapDataSource1</td></tr> <tr><td></td></tr> </table>" __designer:Values="<P N='ID' T='siteMapDataSource1' /><P N='SiteMapProvider' T='CombinedNavSiteMapProvider' /><P N='StartFromCurrentNode' T='True' /><P N='ShowStartingNode' T='False' /><P N='TreatStartingNodeAsCurrent' T='True' /><P N='TrimNonCurrentTypes' E='32' /><P N='Page' ID='1' /><P N='TemplateControl' ID='2' /><P N='AppRelativeTemplateSourceDirectory' R='-1' />"/> </td> <td> <div class="search"> <asp:ContentPlaceHolder id="PlaceHolderSearchArea" runat="server"> <SPSWC:SearchBoxEx id="SearchBox" RegisterStyles="false" TextBeforeDropDown="" TextBeforeTextBox="<%$Resources:cms,masterpages_searchbox_label%>" TextBoxWidth="100" GoImageUrl="<% $SPUrl:~sitecollection/Style Library/Images/Search_Arrow.jpg %>" GoImageUrlRTL="<% $SPUrl:~sitecollection/Style Library/Images/Search_Arrow_RTL.jpg %>" UseSiteDefaults="true" DropDownMode = "HideScopeDD" SuppressWebPartChrome="true" runat="server" WebPart="true" __WebPartId="{7DECDCCA-FDA0-4739-8F0E-7B8DE48F0E0D}" __Preview="<table TOPLEVEL border="0" cellpadding="0" cellspacing="0" width="100%"> <tr> <td><table border="0" cellpadding="0" cellspacing="0" width="100%"> <tr class="ms-WPHeader"> <td title="" id="WebPart

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Anti-Forgery Request Helpers for ASP.NET MVC and jQuery AJAX

- by Dixin

Background To secure websites from cross-site request forgery (CSRF, or XSRF) attack, ASP.NET MVC provides an excellent mechanism: The server prints tokens to cookie and inside the form; When the form is submitted to server, token in cookie and token inside the form are sent in the HTTP request; Server validates the tokens. To print tokens to browser, just invoke HtmlHelper.AntiForgeryToken():<% using (Html.BeginForm()) { %> <%: this.Html.AntiForgeryToken(Constants.AntiForgeryTokenSalt)%> <%-- Other fields. --%> <input type="submit" value="Submit" /> <% } %> This invocation generates a token then writes inside the form:<form action="..." method="post"> <input name="__RequestVerificationToken" type="hidden" value="J56khgCvbE3bVcsCSZkNVuH9Cclm9SSIT/ywruFsXEgmV8CL2eW5C/gGsQUf/YuP" />  <input type="submit" value="Submit" /> </form> and also writes into the cookie: __RequestVerificationToken_Lw__= J56khgCvbE3bVcsCSZkNVuH9Cclm9SSIT/ywruFsXEgmV8CL2eW5C/gGsQUf/YuP When the above form is submitted, they are both sent to server. In the server side, [ValidateAntiForgeryToken] attribute is used to specify the controllers or actions to validate them:[HttpPost] [ValidateAntiForgeryToken(Salt = Constants.AntiForgeryTokenSalt)] public ActionResult Action(/* ... */) { // ... } This is very productive for form scenarios. But recently, when resolving security vulnerabilities for Web products, some problems are encountered. Specify validation on controller (not on each action) The server side problem is, It is expected to declare [ValidateAntiForgeryToken] on controller, but actually it has be to declared on each POST actions. Because POST actions are usually much more then controllers, this is a little crazy Problem Usually a controller contains actions for HTTP GET and actions for HTTP POST requests, and usually validations are expected for HTTP POST requests. So, if the [ValidateAntiForgeryToken] is declared on the controller, the HTTP GET requests become invalid:[ValidateAntiForgeryToken(Salt = Constants.AntiForgeryTokenSalt)] public class SomeController : Controller // One [ValidateAntiForgeryToken] attribute. { [HttpGet] public ActionResult Index() // Index() cannot work. { // ... } [HttpPost] public ActionResult PostAction1(/* ... */) { // ... } [HttpPost] public ActionResult PostAction2(/* ... */) { // ... } // ... } If browser sends an HTTP GET request by clicking a link: http://Site/Some/Index, validation definitely fails, because no token is provided. So the result is, [ValidateAntiForgeryToken] attribute must be distributed to each POST action:public class SomeController : Controller // Many [ValidateAntiForgeryToken] attributes. { [HttpGet] public ActionResult Index() // Works. { // ... } [HttpPost] [ValidateAntiForgeryToken(Salt = Constants.AntiForgeryTokenSalt)] public ActionResult PostAction1(/* ... */) { // ... } [HttpPost] [ValidateAntiForgeryToken(Salt = Constants.AntiForgeryTokenSalt)] public ActionResult PostAction2(/* ... */) { // ... } // ... } This is a little bit crazy, because one application can have a lot of POST actions. Solution To avoid a large number of [ValidateAntiForgeryToken] attributes (one for each POST action), the following ValidateAntiForgeryTokenAttribute wrapper class can be helpful, where HTTP verbs can be specified:[AttributeUsage(AttributeTargets.Class | AttributeTargets.Method, AllowMultiple = false, Inherited = true)] public class ValidateAntiForgeryTokenWrapperAttribute : FilterAttribute, IAuthorizationFilter { private readonly ValidateAntiForgeryTokenAttribute _validator; private readonly AcceptVerbsAttribute _verbs; public ValidateAntiForgeryTokenWrapperAttribute(HttpVerbs verbs) : this(verbs, null) { } public ValidateAntiForgeryTokenWrapperAttribute(HttpVerbs verbs, string salt) { this._verbs = new AcceptVerbsAttribute(verbs); this._validator = new ValidateAntiForgeryTokenAttribute() { Salt = salt }; } public void OnAuthorization(AuthorizationContext filterContext) { string httpMethodOverride = filterContext.HttpContext.Request.GetHttpMethodOverride(); if (this._verbs.Verbs.Contains(httpMethodOverride, StringComparer.OrdinalIgnoreCase)) { this._validator.OnAuthorization(filterContext); } } } When this attribute is declared on controller, only HTTP requests with the specified verbs are validated:[ValidateAntiForgeryTokenWrapper(HttpVerbs.Post, Constants.AntiForgeryTokenSalt)] public class SomeController : Controller { // GET actions are not affected. // Only HTTP POST requests are validated. } Now one single attribute on controller turns on validation for all POST actions. Maybe it would be nice if HTTP verbs can be specified on the built-in [ValidateAntiForgeryToken] attribute, which is easy to implemented. Submit token via AJAX The browser side problem is, if server side turns on anti-forgery validation for POST, then AJAX POST requests will fail be default. Problem For AJAX scenarios, when request is sent by jQuery instead of form:$.post(url, { productName: "Tofu", categoryId: 1 // Token is not posted. }, callback); This kind of AJAX POST requests will always be invalid, because server side code cannot see the token in the posted data. Solution The tokens are printed to browser then sent back to server. So first of all, HtmlHelper.AntiForgeryToken() must be called somewhere. Now the browser has token in HTML and cookie. Then jQuery must find the printed token in the HTML, and append token to the data before sending:$.post(url, { productName: "Tofu", categoryId: 1, __RequestVerificationToken: getToken() // Token is posted. }, callback); To be reusable, this can be encapsulated into a tiny jQuery plugin:/// <reference path="jquery-1.4.2.js" /> (function ($) { $.getAntiForgeryToken = function (tokenWindow, appPath) { // HtmlHelper.AntiForgeryToken() must be invoked to print the token. tokenWindow = tokenWindow && typeof tokenWindow === typeof window ? tokenWindow : window; appPath = appPath && typeof appPath === "string" ? "_" + appPath.toString() : ""; // The name attribute is either __RequestVerificationToken, // or __RequestVerificationToken_{appPath}. tokenName = "__RequestVerificationToken" + appPath; // Finds the <input type="hidden" name={tokenName} value="..." /> from the specified. // var inputElements = $("input[type='hidden'][name='__RequestVerificationToken" + appPath + "']"); var inputElements = tokenWindow.document.getElementsByTagName("input"); for (var i = 0; i < inputElements.length; i++) { var inputElement = inputElements[i]; if (inputElement.type === "hidden" && inputElement.name === tokenName) { return { name: tokenName, value: inputElement.value }; } } return null; }; $.appendAntiForgeryToken = function (data, token) { // Converts data if not already a string. if (data && typeof data !== "string") { data = $.param(data); } // Gets token from current window by default. token = token ? token : $.getAntiForgeryToken(); // $.getAntiForgeryToken(window). data = data ? data + "&" : ""; // If token exists, appends {token.name}={token.value} to data. return token ? data + encodeURIComponent(token.name) + "=" + encodeURIComponent(token.value) : data; }; // Wraps $.post(url, data, callback, type). $.postAntiForgery = function (url, data, callback, type) { return $.post(url, $.appendAntiForgeryToken(data), callback, type); }; // Wraps $.ajax(settings). $.ajaxAntiForgery = function (settings) { settings.data = $.appendAntiForgeryToken(settings.data); return $.ajax(settings); }; })(jQuery); In most of the scenarios, it is Ok to just replace $.post() invocation with $.postAntiForgery(), and replace $.ajax() with $.ajaxAntiForgery():$.postAntiForgery(url, { productName: "Tofu", categoryId: 1 }, callback); // Token is posted. There might be some scenarios of custom token. Here $.appendAntiForgeryToken() is provided:data = $.appendAntiForgeryToken(data, token); // Token is already in data. No need to invoke $.postAntiForgery(). $.post(url, data, callback); And there are scenarios that the token is not in the current window. For example, an HTTP POST request can be sent by iframe, while the token is in the parent window. Here window can be specified for $.getAntiForgeryToken():data = $.appendAntiForgeryToken(data, $.getAntiForgeryToken(window.parent)); // Token is already in data. No need to invoke $.postAntiForgery(). $.post(url, data, callback); If you have better solution, please do tell me.

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AdvancedFormatProvider: Making string.format do more

- by plblum

When I have an integer that I want to format within the String.Format() and ToString(format) methods, I’m always forgetting the format symbol to use with it. That’s probably because its not very intuitive. Use {0:N0} if you want it with group (thousands) separators. text = String.Format("{0:N0}", 1000); // returns "1,000" int value1 = 1000; text = value1.ToString("N0"); Use {0:D} or {0:G} if you want it without group separators. text = String.Format("{0:D}", 1000); // returns "1000" int value2 = 1000; text2 = value2.ToString("D"); The {0:D} is especially confusing because Microsoft gives the token the name “Decimal”. I thought it reasonable to have a new format symbol for String.Format, "I" for integer, and the ability to tell it whether it shows the group separators. Along the same lines, why not expand the format symbols for currency ({0:C}) and percent ({0:P}) to let you omit the currency or percent symbol, omit the group separator, and even to drop the decimal part when the value is equal to the whole number? My solution is an open source project called AdvancedFormatProvider, a group of classes that provide the new format symbols, continue to support the rest of the native symbols and makes it easy to plug in additional format symbols. Please visit https://github.com/plblum/AdvancedFormatProvider to learn about it in detail and explore how its implemented. The rest of this post will explore some of the concepts it takes to expand String.Format() and ToString(format). AdvancedFormatProvider benefits: Supports {0:I} token for integers. It offers the {0:I-,} option to omit the group separator. Supports {0:C} token with several options. {0:C-$} omits the currency symbol. {0:C-,} omits group separators, and {0:C-0} hides the decimal part when the value would show “.00”. For example, 1000.0 becomes “$1000” while 1000.12 becomes “$1000.12”. Supports {0:P} token with several options. {0:P-%} omits the percent symbol. {0:P-,} omits group separators, and {0:P-0} hides the decimal part when the value would show “.00”. For example, 1 becomes “100 %” while 1.1223 becomes “112.23 %”. Provides a plug in framework that lets you create new formatters to handle specific format symbols. You register them globally so you can just pass the AdvancedFormatProvider object into String.Format and ToString(format) without having to figure out which plug ins to add. text = String.Format(AdvancedFormatProvider.Current, "{0:I}", 1000); // returns "1,000" text2 = String.Format(AdvancedFormatProvider.Current, "{0:I-,}", 1000); // returns "1000" text3 = String.Format(AdvancedFormatProvider.Current, "{0:C-$-,}", 1000.0); // returns "1000.00" The IFormatProvider parameter Microsoft has made String.Format() and ToString(format) format expandable. They each take an additional parameter that takes an object that implements System.IFormatProvider. This interface has a single member, the GetFormat() method, which returns an object that knows how to convert the format symbol and value into the desired string. There are already a number of web-based resources to teach you about IFormatProvider and the companion interface ICustomFormatter. I’ll defer to them if you want to dig more into the topic. The only thing I want to point out is what I think are implementation considerations. Why GetFormat() always tests for ICustomFormatter When you see examples of implementing IFormatProviders, the GetFormat() method always tests the parameter against the ICustomFormatter type. Why is that? public object GetFormat(Type formatType) { if (formatType == typeof(ICustomFormatter)) return this; else return null; } The value of formatType is already predetermined by the .net framework. String.Format() uses the StringBuilder.AppendFormat() method to parse the string, extracting the tokens and calling GetFormat() with the ICustomFormatter type. (The .net framework also calls GetFormat() with the types of System.Globalization.NumberFormatInfo and System.Globalization.DateTimeFormatInfo but these are exclusive to how the System.Globalization.CultureInfo class handles its implementation of IFormatProvider.) Your code replaces instead of expands I would have expected the caller to pass in the format string to GetFormat() to allow your code to determine if it handles the request. My vision would be to return null when the format string is not supported. The caller would iterate through IFormatProviders until it finds one that handles the format string. Unfortunatley that is not the case. The reason you write GetFormat() as above is because the caller is expecting an object that handles all formatting cases. You are effectively supposed to write enough code in your formatter to handle your new cases and call .net functions (like String.Format() and ToString(format)) to handle the original cases. Its not hard to support the native functions from within your ICustomFormatter.Format function. Just test the format string to see if it applies to you. If not, call String.Format() with a token using the format passed in. public string Format(string format, object arg, IFormatProvider formatProvider) { if (format.StartsWith("I")) { // handle "I" formatter } else return String.Format(formatProvider, "{0:" + format + "}", arg); } Formatters are only used by explicit request Each time you write a custom formatter (implementer of ICustomFormatter), it is not used unless you explicitly passed an IFormatProvider object that supports your formatter into String.Format() or ToString(). This has several disadvantages: Suppose you have several ICustomFormatters. In order to have all available to String.Format() and ToString(format), you have to merge their code and create an IFormatProvider to return an instance of your new class. You have to remember to utilize the IFormatProvider parameter. Its easy to overlook, especially when you have existing code that calls String.Format() without using it. Some APIs may call String.Format() themselves. If those APIs do not offer an IFormatProvider parameter, your ICustomFormatter will not be available to them. The AdvancedFormatProvider solves the first two of these problems by providing a plug-in architecture.

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ubuntu 12.04 python problem or?

- by Trki

Hi i am trying to fix this for a long time but without success. When i open my zsh terminal i get this error: (terminal is working but error appear) Welcome to the world of tomorrow! virtualenvwrapper_run_hook:12: permission denied: virtualenvwrapper.sh: There was a problem running the initialization hooks. If Python could not import the module virtualenvwrapper.hook_loader, check that virtualenv has been installed for VIRTUALENVWRAPPER_PYTHON= and that PATH is set properly. I tried few things but... dont know how to solve it. Somehow during looking for a search i found i should post here an output of: ? sudo dpkg --configure -a Setting up python-pip (1.0-1build1) ... /var/lib/dpkg/info/python-pip.postinst: 6: /var/lib/dpkg/info/python-pip.postinst: pycompile: not found dpkg: error processing python-pip (--configure): subprocess installed post-installation script returned error exit status 127 Setting up libc-dev-bin (2.15-0ubuntu10.5) ... Setting up gnome-control-center-data (1:3.4.2-0ubuntu0.13) ... Setting up linux-libc-dev (3.2.0-56.86) ... Setting up python-virtualenv (1.7.1.2-1) ... /var/lib/dpkg/info/python-virtualenv.postinst: 6: /var/lib/dpkg/info/python-virtualenv.postinst: pycompile: not found dpkg: error processing python-virtualenv (--configure): subprocess installed post-installation script returned error exit status 127 Setting up libglib2.0-0 (2.32.4-0ubuntu1) ... Setting up libglib2.0-0:i386 (2.32.4-0ubuntu1) ... Setting up gimp (2.6.12-1ubuntu1.2) ... /var/lib/dpkg/info/gimp.postinst: 11: /var/lib/dpkg/info/gimp.postinst: pycompile: not found dpkg: error processing gimp (--configure): subprocess installed post-installation script returned error exit status 127 Setting up libpolkit-gobject-1-0 (0.104-1ubuntu1.1) ... Setting up libgnome-control-center1 (1:3.4.2-0ubuntu0.13) ... Setting up libnm-util2 (0.9.4.0-0ubuntu4.3) ... Setting up libc6-dev (2.15-0ubuntu10.5) ... Setting up libpulse-mainloop-glib0 (1:1.1-0ubuntu15.4) ... dpkg: dependency problems prevent configuration of virtualenvwrapper: virtualenvwrapper depends on python-virtualenv; however: Package python-virtualenv is not configured yet. dpkg: error processing virtualenvwrapper (--configure): dependency problems - leaving unconfigured Setting up libpolkit-agent-1-0 (0.104-1ubuntu1.1) ... Setting up libupower-glib1 (0.9.15-3git1ubuntu0.1) ... Setting up libaccountsservice0 (0.6.15-2ubuntu9.6.1) ... Setting up libpolkit-backend-1-0 (0.104-1ubuntu1.1) ... Setting up libglib2.0-bin (2.32.4-0ubuntu1) ... Setting up libnm-glib4 (0.9.4.0-0ubuntu4.3) ... Setting up policykit-1 (0.104-1ubuntu1.1) ... Setting up gnome-settings-daemon (3.4.2-0ubuntu0.6.4) ... Setting up accountsservice (0.6.15-2ubuntu9.6.1) ... dpkg: error processing ubuntu-system-service (--configure): Package is in a very bad inconsistent state - you should reinstall it before attempting configuration. Processing triggers for libc-bin ... ldconfig deferred processing now taking place Errors were encountered while processing: python-pip python-virtualenv gimp virtualenvwrapper ubuntu-system-service Also: ? python --version zsh: command not found: python Part of my ~/.zshrc # python virtual env wrapper if [ -f ~/.local/bin/virtualenvwrapper.sh ]; then export WORKON_HOME=~/.virtualenvs source ~/.local/bin/virtualenvwrapper.sh plugins=("${plugins[@]}" virtualenvwrapper) fi # pythonbrew [[ -s ~/.pythonbrew/etc/bashrc ]] && source ~/.pythonbrew/etc/bashrc Part os zsh -xv # # Invoke the initialization functions # virtualenvwrapper_initialize +/home/trki/.local/bin/virtualenvwrapper.sh:1179> virtualenvwrapper_initialize +virtualenvwrapper_initialize:1> virtualenvwrapper_derive_workon_home +virtualenvwrapper_derive_workon_home:1> typeset 'workon_home_dir=/home/trki/.virtualenvs' +virtualenvwrapper_derive_workon_home:5> [ /home/trki/.virtualenvs '=' '' ']' +virtualenvwrapper_derive_workon_home:12> echo /home/trki/.virtualenvs +virtualenvwrapper_derive_workon_home:12> unset GREP_OPTIONS +virtualenvwrapper_derive_workon_home:12> grep '^[^/~]' +virtualenvwrapper_derive_workon_home:21> echo /home/trki/.virtualenvs +virtualenvwrapper_derive_workon_home:21> unset GREP_OPTIONS +virtualenvwrapper_derive_workon_home:21> egrep '([\$~]|//)' +virtualenvwrapper_derive_workon_home:30> echo /home/trki/.virtualenvs +virtualenvwrapper_derive_workon_home:31> return 0 +virtualenvwrapper_initialize:1> export 'WORKON_HOME=/home/trki/.virtualenvs' +virtualenvwrapper_initialize:3> virtualenvwrapper_verify_workon_home -q +virtualenvwrapper_verify_workon_home:1> RC=0 +virtualenvwrapper_verify_workon_home:2> [ ! -d /home/trki/.virtualenvs/ ']' +virtualenvwrapper_verify_workon_home:11> return 0 +virtualenvwrapper_initialize:6> [ /home/trki/.virtualenvs '=' '' ']' +virtualenvwrapper_initialize:11> virtualenvwrapper_run_hook initialize +virtualenvwrapper_run_hook:1> typeset hook_script +virtualenvwrapper_run_hook:2> typeset result +virtualenvwrapper_run_hook:4> hook_script=+virtualenvwrapper_run_hook:4> virtualenvwrapper_tempfile initialize-hook +virtualenvwrapper_tempfile:2> typeset 'suffix=initialize-hook' +virtualenvwrapper_tempfile:3> typeset file +virtualenvwrapper_tempfile:5> file=+virtualenvwrapper_tempfile:5> virtualenvwrapper_mktemp -t virtualenvwrapper-initialize-hook-XXXXXXXXXX +virtualenvwrapper_mktemp:1> mktemp -t virtualenvwrapper-initialize-hook-XXXXXXXXXX +virtualenvwrapper_tempfile:5> file=/tmp/virtualenvwrapper-initialize-hook-OhY86PXmo7 +virtualenvwrapper_tempfile:6> [ 0 -ne 0 ']' +virtualenvwrapper_tempfile:6> [ -z /tmp/virtualenvwrapper-initialize-hook-OhY86PXmo7 ']' +virtualenvwrapper_tempfile:6> [ ! -f /tmp/virtualenvwrapper-initialize-hook-OhY86PXmo7 ']' +virtualenvwrapper_tempfile:11> echo /tmp/virtualenvwrapper-initialize-hook-OhY86PXmo7 +virtualenvwrapper_tempfile:12> return 0 +virtualenvwrapper_run_hook:4> hook_script=/tmp/virtualenvwrapper-initialize-hook-OhY86PXmo7 +virtualenvwrapper_run_hook:11> cd /home/trki/.virtualenvs +cd:1> [[ x/home/trki/.virtualenvs == x... ]] +cd:3> [[ x/home/trki/.virtualenvs == x.... ]] +cd:5> [[ x/home/trki/.virtualenvs == x..... ]] +cd:7> [[ x/home/trki/.virtualenvs == x...... ]] +cd:9> [ -d /home/trki/.autoenv ']' +cd:13> cd /home/trki/.virtualenvs +virtualenvwrapper_run_hook:12> '' -m virtualenvwrapper.hook_loader --script /tmp/virtualenvwrapper-initialize-hook-OhY86PXmo7 initialize virtualenvwrapper_run_hook:12: permission denied: +virtualenvwrapper_run_hook:15> result=126 +virtualenvwrapper_run_hook:17> [ 126 -eq 0 ']' +virtualenvwrapper_run_hook:27> [ initialize '=' initialize ']' +virtualenvwrapper_run_hook:29> cat - virtualenvwrapper.sh: There was a problem running the initialization hooks. If Python could not import the module virtualenvwrapper.hook_loader, check that virtualenv has been installed for VIRTUALENVWRAPPER_PYTHON= and that PATH is set properly. +virtualenvwrapper_run_hook:38> rm -f /tmp/virtualenvwrapper-initialize-hook-OhY86PXmo7 +virtualenvwrapper_run_hook:39> return 126 +virtualenvwrapper_initialize:13> virtualenvwrapper_setup_tab_completion +virtualenvwrapper_setup_tab_completion:1> [ -n '' ']' +virtualenvwrapper_setup_tab_completion:20> [ -n 4.3.17 ']' +virtualenvwrapper_setup_tab_completion:30> compctl -K _virtualenvs workon rmvirtualenv cpvirtualenv showvirtualenv +virtualenvwrapper_setup_tab_completion:31> compctl -K _cdvirtualenv_complete cdvirtualenv +virtualenvwrapper_setup_tab_completion:32> compctl -K _cdsitepackages_complete cdsitepackages +virtualenvwrapper_initialize:15> return 0 +/home/trki/.zshrc:17> plugins=( git python django symfony2 zsh-syntax-highlighting composer history-substring-search virtualenvwrapper ) # pythonbrew [[ -s ~/.pythonbrew/etc/bashrc ]] && source ~/.pythonbrew/etc/bashrc +/home/trki/.zshrc:21> [[ -s /home/trki/.pythonbrew/etc/bashrc ]] Also when i try to open ubuntu software center absolutly nothing happens. No idea what to do now.

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Metro: Grouping Items in a ListView Control

- by Stephen.Walther

The purpose of this blog entry is to explain how you can group list items when displaying the items in a WinJS ListView control. In particular, you learn how to group a list of products by product category. Displaying a grouped list of items in a ListView control requires completing the following steps: Create a Grouped data source from a List data source Create a Grouped Header Template Declare the ListView control so it groups the list items Creating the Grouped Data Source Normally, you bind a ListView control to a WinJS.Binding.List object. If you want to render list items in groups, then you need to bind the ListView to a grouped data source instead. The following code – contained in a file named products.js — illustrates how you can create a standard WinJS.Binding.List object from a JavaScript array and then return a grouped data source from the WinJS.Binding.List object by calling its createGrouped() method: (function () { "use strict"; // Create List data source var products = new WinJS.Binding.List([ { name: "Milk", price: 2.44, category: "Beverages" }, { name: "Oranges", price: 1.99, category: "Fruit" }, { name: "Wine", price: 8.55, category: "Beverages" }, { name: "Apples", price: 2.44, category: "Fruit" }, { name: "Steak", price: 1.99, category: "Other" }, { name: "Eggs", price: 2.44, category: "Other" }, { name: "Mushrooms", price: 1.99, category: "Other" }, { name: "Yogurt", price: 2.44, category: "Other" }, { name: "Soup", price: 1.99, category: "Other" }, { name: "Cereal", price: 2.44, category: "Other" }, { name: "Pepsi", price: 1.99, category: "Beverages" } ]); // Create grouped data source var groupedProducts = products.createGrouped( function (dataItem) { return dataItem.category; }, function (dataItem) { return { title: dataItem.category }; }, function (group1, group2) { return group1.charCodeAt(0) - group2.charCodeAt(0); } ); // Expose the grouped data source WinJS.Namespace.define("ListViewDemos", { products: groupedProducts }); })(); Notice that the createGrouped() method requires three functions as arguments: groupKey – This function associates each list item with a group. The function accepts a data item and returns a key which represents a group. In the code above, we return the value of the category property for each product. groupData – This function returns the data item displayed by the group header template. For example, in the code above, the function returns a title for the group which is displayed in the group header template. groupSorter – This function determines the order in which the groups are displayed. The code above displays the groups in alphabetical order: Beverages, Fruit, Other. Creating the Group Header Template Whenever you create a ListView control, you need to create an item template which you use to control how each list item is rendered. When grouping items in a ListView control, you also need to create a group header template. The group header template is used to render the header for each group of list items. Here’s the markup for both the item template and the group header template: <div id="productTemplate" data-win-control="WinJS.Binding.Template"> <div class="product"> <span data-win-bind="innerText:name"></span> <span data-win-bind="innerText:price"></span> </div> </div> <div id="productGroupHeaderTemplate" data-win-control="WinJS.Binding.Template"> <div class="productGroupHeader"> <h1 data-win-bind="innerText: title"></h1> </div> </div> You should declare the two templates in the same file as you declare the ListView control – for example, the default.html file. Declaring the ListView Control The final step is to declare the ListView control. Here’s the required markup: <div data-win-control="WinJS.UI.ListView" data-win-options="{ itemDataSource:ListViewDemos.products.dataSource, itemTemplate:select('#productTemplate'), groupDataSource:ListViewDemos.products.groups.dataSource, groupHeaderTemplate:select('#productGroupHeaderTemplate'), layout: {type: WinJS.UI.GridLayout} }"> </div> In the markup above, six properties of the ListView control are set when the control is declared. First the itemDataSource and itemTemplate are specified. Nothing new here. Next, the group data source and group header template are specified. Notice that the group data source is represented by the ListViewDemos.products.groups.dataSource property of the grouped data source. Finally, notice that the layout of the ListView is changed to Grid Layout. You are required to use Grid Layout (instead of the default List Layout) when displaying grouped items in a ListView. Here’s the entire contents of the default.html page: <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>ListViewDemos</title>  <link href="//Microsoft.WinJS.0.6/css/ui-dark.css" rel="stylesheet"> <script src="//Microsoft.WinJS.0.6/js/base.js"></script> <script src="//Microsoft.WinJS.0.6/js/ui.js"></script>  <link href="/css/default.css" rel="stylesheet"> <script src="/js/default.js"></script> <script src="/js/products.js" type="text/javascript"></script> <style type="text/css"> .product { width: 200px; height: 100px; border: white solid 1px; font-size: x-large; } </style> </head> <body> <div id="productTemplate" data-win-control="WinJS.Binding.Template"> <div class="product"> <span data-win-bind="innerText:name"></span> <span data-win-bind="innerText:price"></span> </div> </div> <div id="productGroupHeaderTemplate" data-win-control="WinJS.Binding.Template"> <div class="productGroupHeader"> <h1 data-win-bind="innerText: title"></h1> </div> </div> <div data-win-control="WinJS.UI.ListView" data-win-options="{ itemDataSource:ListViewDemos.products.dataSource, itemTemplate:select('#productTemplate'), groupDataSource:ListViewDemos.products.groups.dataSource, groupHeaderTemplate:select('#productGroupHeaderTemplate'), layout: {type: WinJS.UI.GridLayout} }"> </div> </body> </html> Notice that the default.html page includes a reference to the products.js file: <script src=”/js/products.js” type=”text/javascript”></script> The default.html page also contains the declarations of the item template, group header template, and ListView control. Summary The goal of this blog entry was to explain how you can group items in a ListView control. You learned how to create a grouped data source, a group header template, and declare a ListView so that it groups its list items.

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Metro: Grouping Items in a ListView Control

- by Stephen.Walther

The purpose of this blog entry is to explain how you can group list items when displaying the items in a WinJS ListView control. In particular, you learn how to group a list of products by product category. Displaying a grouped list of items in a ListView control requires completing the following steps: Create a Grouped data source from a List data source Create a Grouped Header Template Declare the ListView control so it groups the list items Creating the Grouped Data Source Normally, you bind a ListView control to a WinJS.Binding.List object. If you want to render list items in groups, then you need to bind the ListView to a grouped data source instead. The following code – contained in a file named products.js — illustrates how you can create a standard WinJS.Binding.List object from a JavaScript array and then return a grouped data source from the WinJS.Binding.List object by calling its createGrouped() method: (function () { "use strict"; // Create List data source var products = new WinJS.Binding.List([ { name: "Milk", price: 2.44, category: "Beverages" }, { name: "Oranges", price: 1.99, category: "Fruit" }, { name: "Wine", price: 8.55, category: "Beverages" }, { name: "Apples", price: 2.44, category: "Fruit" }, { name: "Steak", price: 1.99, category: "Other" }, { name: "Eggs", price: 2.44, category: "Other" }, { name: "Mushrooms", price: 1.99, category: "Other" }, { name: "Yogurt", price: 2.44, category: "Other" }, { name: "Soup", price: 1.99, category: "Other" }, { name: "Cereal", price: 2.44, category: "Other" }, { name: "Pepsi", price: 1.99, category: "Beverages" } ]); // Create grouped data source var groupedProducts = products.createGrouped( function (dataItem) { return dataItem.category; }, function (dataItem) { return { title: dataItem.category }; }, function (group1, group2) { return group1.charCodeAt(0) - group2.charCodeAt(0); } ); // Expose the grouped data source WinJS.Namespace.define("ListViewDemos", { products: groupedProducts }); })(); Notice that the createGrouped() method requires three functions as arguments: groupKey – This function associates each list item with a group. The function accepts a data item and returns a key which represents a group. In the code above, we return the value of the category property for each product. groupData – This function returns the data item displayed by the group header template. For example, in the code above, the function returns a title for the group which is displayed in the group header template. groupSorter – This function determines the order in which the groups are displayed. The code above displays the groups in alphabetical order: Beverages, Fruit, Other. Creating the Group Header Template Whenever you create a ListView control, you need to create an item template which you use to control how each list item is rendered. When grouping items in a ListView control, you also need to create a group header template. The group header template is used to render the header for each group of list items. Here’s the markup for both the item template and the group header template: <div id="productTemplate" data-win-control="WinJS.Binding.Template"> <div class="product"> <span data-win-bind="innerText:name"></span> <span data-win-bind="innerText:price"></span> </div> </div> <div id="productGroupHeaderTemplate" data-win-control="WinJS.Binding.Template"> <div class="productGroupHeader"> <h1 data-win-bind="innerText: title"></h1> </div> </div> You should declare the two templates in the same file as you declare the ListView control – for example, the default.html file. Declaring the ListView Control The final step is to declare the ListView control. Here’s the required markup: <div data-win-control="WinJS.UI.ListView" data-win-options="{ itemDataSource:ListViewDemos.products.dataSource, itemTemplate:select('#productTemplate'), groupDataSource:ListViewDemos.products.groups.dataSource, groupHeaderTemplate:select('#productGroupHeaderTemplate'), layout: {type: WinJS.UI.GridLayout} }"> </div> In the markup above, six properties of the ListView control are set when the control is declared. First the itemDataSource and itemTemplate are specified. Nothing new here. Next, the group data source and group header template are specified. Notice that the group data source is represented by the ListViewDemos.products.groups.dataSource property of the grouped data source. Finally, notice that the layout of the ListView is changed to Grid Layout. You are required to use Grid Layout (instead of the default List Layout) when displaying grouped items in a ListView. Here’s the entire contents of the default.html page: <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>ListViewDemos</title>  <link href="//Microsoft.WinJS.0.6/css/ui-dark.css" rel="stylesheet"> <script src="//Microsoft.WinJS.0.6/js/base.js"></script> <script src="//Microsoft.WinJS.0.6/js/ui.js"></script>  <link href="/css/default.css" rel="stylesheet"> <script src="/js/default.js"></script> <script src="/js/products.js" type="text/javascript"></script> <style type="text/css"> .product { width: 200px; height: 100px; border: white solid 1px; font-size: x-large; } </style> </head> <body> <div id="productTemplate" data-win-control="WinJS.Binding.Template"> <div class="product"> <span data-win-bind="innerText:name"></span> <span data-win-bind="innerText:price"></span> </div> </div> <div id="productGroupHeaderTemplate" data-win-control="WinJS.Binding.Template"> <div class="productGroupHeader"> <h1 data-win-bind="innerText: title"></h1> </div> </div> <div data-win-control="WinJS.UI.ListView" data-win-options="{ itemDataSource:ListViewDemos.products.dataSource, itemTemplate:select('#productTemplate'), groupDataSource:ListViewDemos.products.groups.dataSource, groupHeaderTemplate:select('#productGroupHeaderTemplate'), layout: {type: WinJS.UI.GridLayout} }"> </div> </body> </html> Notice that the default.html page includes a reference to the products.js file: <script src=”/js/products.js” type=”text/javascript”></script> The default.html page also contains the declarations of the item template, group header template, and ListView control. Summary The goal of this blog entry was to explain how you can group items in a ListView control. You learned how to create a grouped data source, a group header template, and declare a ListView so that it groups its list items.

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