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• How do i use SQL Server 2008? With Visual Studios?

  - by acidzombie24

  Its a two part question. How do i use SQL Server 2008? With Visual Studios? I started up a dummy project and with server explorer i tried with create new sql server database and add connection using my computer name (it came from a dropdown) as the server location. When i tried to create the database 'TestDB1' i got an error. I dont understand why. Its a fresh install and i have restarted the comp a few times since then. I havent messed with visual studios or the servers or even the control options to disable anything that would have been automatic. So whats with this? -edit- My goals are 1) create a database. 2) Be able to see all the database that exist on the server 3) execute sql queries in the ide 4) be able to browse tables. I dont need all of these but as many possible would be nice.

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• Java inheritance question

  - by user247866

  So I have 3 classes. Abstract class A Class B extends class A independent Class C In class D that contains the main method, I create a list of instances of class B List<B> b = method-call();` // the method returns a list of instances of class B Now in class C I have one method that is common to both A and B, and hence I don't want to duplicate it. I want to have one method that takes as input an instance of class A, as follows: public void some-method(LIst<A> a) However, when I do: C c = new C(). c. some-method(b) I get an error that some-method is not applicable for the argument List, instead it's expecting to get List. Is there a good way to fix this problem? Many thanks!

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• How do I compare a string in an array to a string?

  - by user1641312

  EDIT: IT'S FIXED, THANKS FOR THE HELP! So basically I have an array of strings, a question and an answer public static String[][] triviaData = { {"Question2", "Answer1"}, {"Question2", "Answer2"}, {"Question3", "Answer3"}, }; And I am trying to make a method that validates an entered input, lets call the entered input enteredAnswer. enteredAnswer is stored as a String. I am trying to validate that the enteredAnswer is the same as the second index of the array. if (enteredAnswer.equalsIgnoreCase(triviaData[Config.CurrentQuestion][1])) { This is the code I tried, but I get the error "Cannot invoke equalsIgnoreCase(String) on the array type String[]" I am a beginner programmer so if you could help me out it would be highly appreciated. Thanks. enteredAnswer is stored as public String[] enteredAnswer;

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• count number of rows to be affected before update in trigger

  - by tomaszsobczak

  Hi, I want to know number of rows that will be affected by UPDATE query in BEFORE per statement trigger . Is that possible? The problem is that i want to allow only queries that will update up to 4 rows. If affected rows count is 5 or more i want to raise error. I don't want to do this in code because i need this check on db level. Is this at all possible? Thanks in advance for any clues on that

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• WAMP Can't have a folder named 'icons'

  - by Yxvasznalskje

  I'm having some problem with wamp. I can't seem to have an folder called icons. This is where I keep all my icons used on the site. The problem is all my icons are not showing up. If I rename it to something else it works. But I can't seem to have a folder called icons for some reason. I've tried deleting it and made a new folder called icons but it just wont let me. Forbidden You don't have permission to access /icons/ on this server. Why do I get this permission access error? I am using Windows 7.

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• conversions in C++

  - by lego69

  I have this snippet of the code: header class A { private: int player; public: A(int initPlayer = 0); A(const A&); A& operator=(const A&); ~A(); void foo() const; friend A& operator=(A& i, const A& member); }; operator= A& operator=(A& i, const A& member){ i(member.player); return i; } and I have row in my code: i = *pa1; A *pa1 = new A(a2); at the beginning i was int how can I fix it, thanks in advance I have an error must be non-static function

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• Multiply without multiplication, division and bitwise operators, and no loops. Recursion

  - by lxx22

  public class MultiplyViaRecursion{ public static void main(String[] args){ System.out.println("8 * 9 == " + multiply(8, 9)); System.out.println("6 * 0 == " + multiply(6, 0)); System.out.println("0 * 6 == " + multiply(0, 6)); System.out.println("7 * -6 == " + multiply(7, -6)); } public static int multiply(int x, int y){ int result = 0; if(y > 0) return result = (x + multiply(x, (y-1))); if(y == 0) return result; if(y < 0) return result = -multiply(x, -y); return result; } } My question is very simple and basic, why after each "if" the "return" still cannot pass the compilation, error shows missing return.

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• how to guarantee atomicity across two databases (the filesystem and your RDBMS)?

  - by Lock up

  i am working on a online file management project.In which we are storing references on the database(sql server) and files data on the on file system;.In which we are facing a problem of coordination between file system and database while we are uploading a file and also in case of deleting a file that first we create a reference in the data base or store files on file system;;the problem is that if create a reference in the database first and then storing a file on file system.bur while storing files on the file system any type of error occur.then reference for that file is created in the database but no file data on the file system;; please give me some solution how to deal with such situation;;i am badly in need of it;; and reason for that?

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• PHP - Get values from Array

  - by danit

  I am trying to get a record from a database using an sql lookup (sql1). This then returns as an array which is fine, but I need to use part of the array for my next stage. $opt=get_records_sql($sql1); //Diags for SQL content print_object($opt); $n = count($opt); if (empty($opt)) { echo 'No options selected'; } else { $optno = $opt["subjectid"]; // Diags of $optno echo '<br>$optno = '.$optno; As you can see, I tried to use this: $opt["subjectid"] as subjectid is the fieldname that I am trying to access and I was under the impression that this was correct for accessing an array, but I get the following error: Notice: Undefined index: subjectid Array contents: Array ( [1] => stdClass Object ( [uname] => JHollands06 [tutor] => M LSt [subjectid] => 1 [year] => 2010 [optid] => 1 ) )

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• How to change the elements in the page base on user who is logged in

  - by user225269

  Please give me an idea on how to display elements in a page depending on who is logged in. For example, a user or an administrator. I'm thinking of something like this but I get a parse error, what do I lack in this code?: <?php session_start(); if (!(isset($_SESSION['loginAdmin']) && $_SESSION['loginAdmin'] != '')) { header ("Location: loginam.php"); } if else (!(isset($_SESSION[['loginAdmin']) && $_SESSION['loginAdmin'] =='')) { ?> <?php include('head2.php'); ?> } <?php if (!(isset($_SESSION['login']) && $_SESSION['login'] != '')) { header ("Location: login.php"); } if else (!(isset($_SESSION[['login']) && $_SESSION['login'] =='')) { ?> <?php include('head3.php'); } ?> Please help

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• Adding an Element to an Array

  - by coffeeaddict

  Ok, I cannot get this. I've looked at it and I don't see why it's out of bounds. I get the error at paypalItems[paypalItems.Length] = new PaymentDetailsItemType PaymentDetailsItemType[] paypalItems = new PaymentDetailsItemType[order.OrderItems.Count]; for (int i = 0; i < order.OrderItems.Count; i++) { paypalItems[i] = new PaymentDetailsItemType { Name = order.OrderItems[i].Name, Amount = ApiUtility.CreateBasicAmount(order.OrderItems[i].Price), Description = order.OrderItems[i].Name, Number = order.OrderItems[i].Sku, }; } if (giftCardsTotal != 0) { // add Coupons & Discounts line item paypalItems[paypalItems.Length] = new PaymentDetailsItemType { Name = "Gift Cards", Amount = ApiUtility.CreateBasicAmount(giftCardsTotal), Description = "Gift Cards" }; }

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• IIS, Apache, and header()

  - by MetalAdam

  I'm working on migrating a website from an external server (running Apache) to a local server (running IIS), and have come across an issue that I can't seem to resolve. The site is using a custom Joomla plugin that grabs some graphics stored in a mysql database (for e.g. http://www.norfolktourism.ca/index.php?option=com_bdirectory&task=image&cid=191). However, when I migrate the site to the local server, the images are broken. Upon further exploration, I've discovered that somehow, when ran on the local server, their seems to whitespace (as in a new line) gets processed before the header() function is processed, hence breaking the image (however, I don't get an error - just a broken image). I'm absolutely baffled as to what the issue may be, as the code works fine on the external Apache server. Would anyone have any suggestions on possible resolutions?

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• C++ template + typedef

  - by MMS

  What is wrong in the following code: Point2D.h template <class T> class Point2D { private: T x; T y; ... }; PointsList.h template <class T> class Point2D; template <class T> struct TPointsList { typedef std::vector <Point2D <T> > Type; }; template <class T> class PointsList { private: TPointsList <T>::Type points; //Compiler error ... }; I would like to create new user type TPointsList without direct type specification...

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• C# string to combobox issues

  - by Mike

  What i'm trying to do is read in a header row of a file to a combobox. Here is my code: private void button4_Click(object sender, EventArgs e) { string[] startdelim = File.ReadAllLines(textBox1.Text); int counter = 1; foreach (string delim in startdelim) { if (counter == 1) { string removedelim = delim.Replace("\"", ""); string[] lines = removedelim.IndexOf(","); foreach (string line in lines) { comboBox1.Items.Add(line); } } counter++; } for some reason it keeps telling me Error Cannot implicitly convert type 'int' to 'string[]' at string[] lines = removedelim.IndexOf(",");

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• can function return 0 as reference

  - by helloWorld

  I have this snippet of the code Account& Company::findAccount(int id){ for(list<Account>::const_iterator i = listOfAccounts.begin(); i != listOfAccounts.end(); ++i){ if(i->nID == id){ return *i; } } return 0; } Is this right way to return 0 if I didn't find appropriate account? cause I receive an error: no match for 'operator!' in '!((Company*)this)->Company::findAccount(id)' I use it this way: if(!(findAccount(id))){ throw "hey"; } thanks in advance

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• generate 10 UUID records and save it it database in rails

  - by user662503

  I need to create certain number of UUId records (based on the selection of a drop down) and save them in the database. Now I am generating only one unique id. Can this be done in the model in this way? Or do I need to write a helper file for that? def generate_unique_token=(value) self.secret = Base64.encode64(UUIDTools::UUID.random_create)[0..8] end My controller: def create @secretcode = Secretcode.new(params[:secretcode]) @user = User.new(params[:user]) @secretcode.user_id = @user @secretcode.generate_unique_token = params[:secretcode][:secret] if @secretcode.valid? @secretcode.save redirect_to secretcodes_path else render 'new' end end My view page <%= form_for(@secretcode) do |f| %> <%= f.select(:secret, options_for_select([['1',1], ['10',10], ['20',20],['50',50]['100',100]])) %> <%= render 'layouts/error' %> <%=f.label :secret%> <%= f.hidden_field :user %> <%=f.submit :generate %> <% end %>

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• Simple: replace div with ajax content (jquery)

  - by user469110

  I followed this thread. I now have: <a href="#" onclick="$('#gc').load('test');">reload</a>... </span> <div id="gc"> empty </div> This is what I am getting: Uncaught exception: TypeError: Cannot convert '$('#gc')' to object Error thrown at line 1, column 0 in <anonymous function>(event): $('#gc').load('test'); What is that? I thought I would be able to select a div and replace the contents with load()?

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• How to search for a file or directory in Linux Ubuntu machine

  - by Jury A

  I created an EC2 instance (Ubuntu 64 bit) and attached a volume from a publicly available snapshot to the instance. I successfully mounted the volume. I am supposed to be able to run a script from this attached volume using the following steps as explained in the tutorial: Log in to your virtual machine. mkdir /space mount /dev/sdf1 /space cd /space ./setup-script The problem is that, when I try: ./setup-script I got the following message: -bash: ./setup-script: No such file or directory What is the problem ? How can I search for the ./setup-script in the whole machine ? I'm not very familiar with linux system. Please, help. For more details about the issue: Look at my previous post: Error when mounting drive

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• Validate NSString

  - by Chris

  I am validating an NSString to ensure that the string does not contain apostrophes. The code I'm using to do this is NSCharacterSet * invalidNumberSet = [NSCharacterSet characterSetWithCharactersInString:@"'"]; NSScanner * scanner = [NSScanner scannerWithString:string]; NSString * scannerResult; [scanner setCharactersToBeSkipped:nil]; [scanner scanUpToCharactersFromSet:invalidNumberSet intoString:&scannerResult]; if(![string isEqualToString:scannerResult]) { return 2; } Returning 2 represents an error. This code works, except for the case where the string is an apostrophe. To get around this issue, I added the following code above the preceding block. if([string isEqualToString:@"'"]); { return 2; } This code is evaluating to true, regardless of the input. I need to either prevent the first block from crashing with the input of ', or get the second block to work. What am I missing?

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• Do something when phone reaches a set of location?

  - by Pentium10

  I have a list of coordinates in the database identified as POI. For a city could be 100 records. I would like to get notified when the phone gets in 150 meters range of one of the location. The location coordinates too has an error/radius, usually 10 to 100meters. Since I don't find it good to add each location(could be hundreds) for a trigger, how can I optimize the wake-up code? Also do I have options to remove a previously setup notification from the queue?

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• MSMQ sending message problem... (c#)

  - by Paul

  My code : string _path = "mymachine\\Private$\\example"; // create a message queue object MessageQueue MQueue = new MessageQueue(_path); // create the message and set the base properties Message Msg = new Message("Messagem"); Msg.ResponseQueue = MQueue; Msg.Priority = MessagePriority.Normal; Msg.UseJournalQueue = true; Msg.Label = "gps1"; // send the message MQueue.Send(Msg); // close the mesage queue MQueue.Close(); No error, but nothing in my MessageQueue... Any help?

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• Can't get jQuery ajax work

  - by yozloy

  I'm new to jQuery, and it really cool, but I can't get the basic ajax work, there's no error in the console ,so I don't know where goes wrong: getJSON function version: $(document).ready(function(){ $.getJSON('http://pollview:8888/js/example.json', function(data){ for(var element in data){ console.log(data[element]); } }); }); then the basic ajax version: $(document).ready(function(){ $.ajax({ url: 'http://pollview:8888/js/example.json' }).done(function(data){ alert('successful'); }); }); I get me stuck, any idea?

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• As2 loading swf instance

  - by user1748474

  I have a .swf which loads an external .swf: this.createEmptyMovieClip("container_mc", this.getNextHighestDepth()); var my_listener:Object = new Object(); my_listener.onLoadComplete = function(target_mc:MovieClip) { target_mc._x = 50; target_mc._y = 50; addChild(my_loader); var blocker = my_loader.content.test blocker._visible = false; } my_listener.onLoadProgress = function(target_mc:MovieClip) { trace(target_mc.getBytesLoaded() + " out of " + target_mc.getBytesTotal()); } var my_loader:MovieClipLoader = new MovieClipLoader(); my_loader.addListener(my_listener); my_loader.loadClip("child_as2.swf", container_mc); I want to acces the external swf and make the movieclip with instance name test visible = false; but it won't work. I have tried a lot of codes and right now it throws me this error: Scene=Escena 1, layer=Capa 1, frame=1, Line 9 There is no property with the name 'content'. Any idea? If you have a better code i will thank you so much.

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• c++ possible errors

  - by lego69

  hello I've got error a1 was not declared in this scope, can somebody please explain me my fault my header: #ifndef QUIZ_H_ #define QUIZ_H_ #include "quiz.cpp" class A { private: int player; public: A(int initPlayer); ~A(); void foo(); }; #endif /* QUIZ_H_ */ implementation of class functions: #include "quiz.h" #include <iostream> using std::cout; using std::endl; A::A(int initPlayer = 0){ player = initPlayer; } A::~A(){ } void A::foo(){ cout << player; } my main #include "quiz.h" int main() { quiz(7); return 0; } function quiz: #include "quiz.h" void quiz(int i) { A a1(i); a1.foo(); }

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• casting a node to integer

  - by user1708762

  The code gives an error saying that "no operator matches these two operands" in the if comparison statement. I interpret,it should mean that "a node can't be converted/casted into an integer". But, the print statement prints an integer value for w[2] when used with %d format. Why is that happening? Isn't printf casting it? NODE *w=(NODE *)malloc(4*sizeof(NODE)); if(w[2]==0) printf("%d\n",w[2]); The structure of the node is- struct node{ int key; struct node *father; struct node *child[S]; int *ss; int current; };

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