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  • gwt ext combobox

    - by usman
    hi, i am using gwt ext.i have a combo box.i want to set my own filter to display the value. Any idea please eg: combobox contain : jon , jockey jo, rock k, michle ken, jonty mark, if i enter k the combo box has to show rock k. condition is it has to check the starting letter word of the list

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  • Progress Bar restarts

    - by Rishi Kasnia
    I have a DataGrid and in the Data Template of a DataGridTemplateColumn, i have added a Progress bar. now every time when mouse overs the rows of the data grid. my progress bar restarts its value from 0. I actually changes the Background and border property of the Row from triggers which i have defined in the control template of the Data Grid. Any Suggestions...

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  • FREED(id): message release sent to freed object error solution ?

    - by Meko
    Hi.In my Iphone app I am getting: objc[597]: FREED(id): message release sent to freed object=0x3b81780 error.What should cause this error?IS it about memory allocation? I have UITable and model view that include some text field.It takes username from model view and search this in internet and gets some images from internet.It takes data but when model view disappears app exits.and gives that error.When model views close it runs my method and gets value.But it exits from app.

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  • How to "escape" a whole String - an SQL query

    - by Ankur
    When I add a relative path to an SQL query as a String all the \ get removed. I am trying to add the String ("pics\\"+onlyFile) and as you can see I have escaped the \ character so I don't understand why it is being removed. onlyFile is a variable containing a file name. The value of the "src" variable (the one I am discussing) just before the SQL statement is correct, hence it is something happening when it is added to the SQL query.

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  • Enabling tag libraries in jsp

    - by noam
    I feel like I am missing something - from what it seems, jsp comes out of the box with support for tags, as this question's answer shows (the guy was asking a pure-jsp question and got an answer involving tags). But if I try to run the given code <c:out value="${myString}"/> (with myString defined before, of course), the jsp just writes the above line into the html. Do I have to do something extra to enable it?

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  • Parser combinators info

    - by Jeriho
    I am using parsing combinators in scala If I have recursive parser: val parser = "(?ui)(regexvalue)".r | (parser2~value) How can I check how many characters of input my parser consumed?

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  • multiple applications using same login database logging each other out

    - by Axarydax
    Hello, I've set up two asp.net applications on a machine, their web.config files contain the same applicationName value in AspNetSqlMembershipProvider item so they share users and roles. The problem sequence is: user logs into application A, opens new tab in a browser logs into application B, his login in application A is signed out and vice versa. Should I use different approach to sharing login information between two applications? Thanks.

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  • Creating a Colormap Legend in Matplotlib

    - by Vince
    Hi fellow Stackers! I am using imshow() in matplotlib like so: import numpy as np import matplotlib.pyplot as plt mat = '''SOME MATRIX''' plt.imshow(mat, origin="lower", cmap='gray', interpolation='nearest') plt.show() How do I add a legend showing the numeric value for the different shades of gray. Sadly, my googling has not uncovered an answer :( Thank you in advance for the help. Vince

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  • python parsing file json

    - by michele
    File json: {"maps":[{"id":"blabla","iscategorical":"0"},{"id":"blabla","iscategorical":"0"}], "masks":["id":"valore"], "om_points":"value", "parameters":["id":"valore"] } I write this script but it only print all the text. json_data=open(file_directory).read() data = json.loads(json_data) pprint(data) How can I parse the file and extract single values? Thanks in advance.

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  • Good Package for Fitting Polynomial Trend Lines

    - by Rev316
    Given a simple data set, I would like to be able to calculate a trending formula given it's a second order polynomial regression. In fact, it would be great if one could even forecast X periods during calculation (similar to what Excel does). I'm looking for a portable C/C++ package that's relatively easy to use, and allows it to spit out the "best-fit" (highest R^2 value) curve. Any suggestions? Thanks!

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  • Disable lazy loading by default in Entity Framework 4

    - by Mikey Cee
    It seems that lazy loading is enabled by default in EF4. At least, in my project, I can see that the value of dataContext.ContextOptions.LazyLoadingEnabled is true by default. I don't want lazy loading and I don't want to have to write: dataContext.ContextOptions.LazyLoadingEnabled = false; each time I get a new context. So is there a way to turn it off by default, say, across the whole project?

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  • JavaScript query string

    - by Chris
    Is there any JavaScript library that makes a dictionary out of the query string, ASP.NET style? Something that would be used like: var query = window.location.querystring["query"]? Is a "query string" called something else outside the .NET realm? Why isn't location.search broken into a key/value collection already? EDIT: I have written my own function, thanks, but does any major JavaScript library do this?

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  • Mouse position in xaml - wpf

    - by Simon Fox
    Hi all Is it possible to specify the position of the mouse as the value of the Parameter property of a Command in XAML. Something like the following: <UserControl.ContextMenu> <ContextMenu> <MenuItem Header="Create Link" Command="{Binding CreateLink}" CommandParameter="{Binding Mouse.Position}" > </MenuItem> </ContextMenu> </UserControl.ContextMenu>

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  • Why does this pdo::mysql code crash on windows??

    - by user154107
    Why does this pdo::mysql code crash on windows??? <?php $username = "root"; $password = ""; try { $dsn = "mysql:host=localhost;dbname=employees"; $dbh = new PDO($dsn, $username, $password); $dbh->setAttribute(PDO::ATTR_EMULATE_PREPARES, FALSE); $dbh->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION); echo "Connected to database<br />" ; $dbh->exec("DROP TABLE IF EXISTS vCard;"); $dbh->exec("DROP TABLE IF EXISTS emp;"); $table = "CREATE TABLE vCard( id INT(4) NOT NULL PRIMARY KEY, firstName VARCHAR (255), lastName VARCHAR (255), office VARCHAR (255), homePh VARCHAR (13), mobilePh VARCHAR (13))"; $dbh->exec($table); $dbh->beginTransaction(); $dbh->exec("INSERT INTO vCard(id, firstName, lastName, office, homePh, mobilePh) VALUES (4834, 'Randy', 'Lewis', 'SR. Front End Developer', '631-842-3375', '917-435-2245');"); $dbh->exec("INSERT INTO vCard(id, firstName, lastName, office, homePh, mobilePh) VALUES (0766, 'Frank', 'LaGuy', 'Graphic Designer', '631-789-8244', '917-324-9897');"); $dbh->exec("INSERT INTO vCard(id, firstName, lastName, office, homePh, mobilePh) VALUES (6684, 'Donnie', 'Dolemite', 'COO', '631-789-9482', '917-234-1222');"); $dbh->exec("INSERT INTO vCard(id, firstName, lastName, office, homePh, mobilePh) VALUES (8569, '', 'McLovin', 'Actor', '631-842-9786', '917-987-8944');"); $dbh->commit(); echo "Data entered successfully<br/><br/>"; $sql = "SELECT * FROM vCard"; // WHERE firstName = 'Donnie'"; $results = $dbh->query($sql); foreach ($results as $id){ echo "SSN: ". $id['id']." "; echo "First Name: ". $id['firstName']." "; echo "Last Name: ". $id['lastName']."<br/>"; } } catch (PDOException $e) { echo "Failed: " . $e->getMessage(); $dbh->rollback(); } ?> basically this line of code is what triggers Apache to crash.. $sql = "SELECT * FROM vCard"; If I try to select one value like 'id' it'll ... when I try to select more than one value "*" it crashes??????

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  • Catching an exception class within a template

    - by Todd Bauer
    I'm having a problem using the exception class Overflow() for a Stack template I'm creating. If I define the class regularly there is no problem. If I define the class as a template, I cannot make my call to catch() work properly. I have a feeling it's simply syntax, but I can't figure it out for the life of me. #include<iostream> #include<exception> using namespace std; template <class T> class Stack { private: T *stackArray; int size; int top; public: Stack(int size) { this->size = size; stackArray = new T[size]; top = 0; } ~Stack() { delete[] stackArray; } void push(T value) { if (isFull()) throw Overflow(); stackArray[top] = value; top++; } bool isFull() { if (top == size) return true; else return false; } class Overflow {}; }; int main() { try { Stack<double> Stack(5); Stack.push( 5.0); Stack.push(10.1); Stack.push(15.2); Stack.push(20.3); Stack.push(25.4); Stack.push(30.5); } catch (Stack::Overflow) { cout << "ERROR! The stack is full.\n"; } return 0; } The problem is in the catch (Stack::Overflow) statement. As I said, if the class is not a template, this works just fine. However, once I define it as a template, this ceases to work. I've tried all sorts of syntaxes, but I always get one of two sets of error messages from the compiler. If I use catch(Stack::Overflow): ch18pr01.cpp(89) : error C2955: 'Stack' : use of class template requires template argument list ch18pr01.cpp(13) : see declaration of 'Stack' ch18pr01.cpp(89) : error C2955: 'Stack' : use of class template requires template argument list ch18pr01.cpp(13) : see declaration of 'Stack' ch18pr01.cpp(89) : error C2316: 'Stack::Overflow' : cannot be caught as the destructor and/or copy constructor are inaccessible EDIT: I meant If I use catch(Stack<double>::Overflow) or any variety thereof: ch18pr01.cpp(89) : error C2061: syntax error : identifier 'Stack' ch18pr01.cpp(89) : error C2310: catch handlers must specify one type ch18pr01.cpp(95) : error C2317: 'try' block starting on line '75' has no catch handlers I simply can not figure this out. Does anyone have any idea?

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  • Asynchronous Webcrawling F#, something wrong ?

    - by jlezard
    Not quite sure if it is ok to do this but, my question is: Is there something wrong with my code ? It doesn't go as fast as I would like, and since I am using lots of async workflows maybe I am doing something wrong. The goal here is to build something that can crawl 20 000 pages in less than an hour. open System open System.Text open System.Net open System.IO open System.Text.RegularExpressions open System.Collections.Generic open System.ComponentModel open Microsoft.FSharp open System.Threading //This is the Parallel.Fs file type ComparableUri ( uri: string ) = inherit System.Uri( uri ) let elts (uri:System.Uri) = uri.Scheme, uri.Host, uri.Port, uri.Segments interface System.IComparable with member this.CompareTo( uri2 ) = compare (elts this) (elts(uri2 :?> ComparableUri)) override this.Equals(uri2) = compare this (uri2 :?> ComparableUri ) = 0 override this.GetHashCode() = 0 ///////////////////////////////////////////////Funtions to retreive html string////////////////////////////// let mutable error = Set.empty<ComparableUri> let mutable visited = Set.empty<ComparableUri> let getHtmlPrimitiveAsyncDelay (delay:int) (uri : ComparableUri) = async{ try let req = (WebRequest.Create(uri)) :?> HttpWebRequest // 'use' is equivalent to ‘using’ in C# for an IDisposable req.UserAgent<-"Mozilla" //Console.WriteLine("Waiting") do! Async.Sleep(delay * 250) let! resp = (req.AsyncGetResponse()) Console.WriteLine(uri.AbsoluteUri+" got response after delay "+string delay) use stream = resp.GetResponseStream() use reader = new StreamReader(stream) let html = reader.ReadToEnd() return html with | _ as ex -> Console.WriteLine( ex.ToString() ) lock error (fun () -> error<- error.Add uri ) lock visited (fun () -> visited<-visited.Add uri ) return "BadUri" } ///////////////////////////////////////////////Active Pattern Matching to retreive href////////////////////////////// let (|Matches|_|) (pat:string) (inp:string) = let m = Regex.Matches(inp, pat) // Note the List.tl, since the first group is always the entirety of the matched string. if m.Count > 0 then Some (List.tail [ for g in m -> g.Value ]) else None let (|Match|_|) (pat:string) (inp:string) = let m = Regex.Match(inp, pat) // Note the List.tl, since the first group is always the entirety of the matched string. if m.Success then Some (List.tail [ for g in m.Groups -> g.Value ]) else None ///////////////////////////////////////////////Find Bad href////////////////////////////// let isEmail (link:string) = link.Contains("@") let isMailto (link:string) = if Seq.length link >=6 then link.[0..5] = "mailto" else false let isJavascript (link:string) = if Seq.length link >=10 then link.[0..9] = "javascript" else false let isBadUri (link:string) = link="BadUri" let isEmptyHttp (link:string) = link="http://" let isFile (link:string)= if Seq.length link >=6 then link.[0..5] = "file:/" else false let containsPipe (link:string) = link.Contains("|") let isAdLink (link:string) = if Seq.length link >=6 then link.[0..5] = "adlink" elif Seq.length link >=9 then link.[0..8] = "http://adLink" else false ///////////////////////////////////////////////Find Bad href////////////////////////////// let getHref (htmlString:string) = let urlPat = "href=\"([^\"]+)" match htmlString with | Matches urlPat urls -> urls |> List.map( fun href -> match href with | Match (urlPat) (link::[]) -> link | _ -> failwith "The href was not in correct format, there was more than one match" ) | _ -> Console.WriteLine( "No links for this page" );[] |> List.filter( fun link -> not(isEmail link) ) |> List.filter( fun link -> not(isMailto link) ) |> List.filter( fun link -> not(isJavascript link) ) |> List.filter( fun link -> not(isBadUri link) ) |> List.filter( fun link -> not(isEmptyHttp link) ) |> List.filter( fun link -> not(isFile link) ) |> List.filter( fun link -> not(containsPipe link) ) |> List.filter( fun link -> not(isAdLink link) ) let treatAjax (href:System.Uri) = let link = href.ToString() let firstPart = (link.Split([|"#"|],System.StringSplitOptions.None)).[0] new Uri(firstPart) //only follow pages with certain extnsion or ones with no exensions let followHref (href:System.Uri) = let valid2 = set[".py"] let valid3 = set[".php";".htm";".asp"] let valid4 = set[".php3";".php4";".php5";".html";".aspx"] let arrLength = href.Segments |> Array.length let lastExtension = (href.Segments).[arrLength-1] let lengthLastExtension = Seq.length lastExtension if (lengthLastExtension <= 3) then not( lastExtension.Contains(".") ) else //test for the 2 case let last4 = lastExtension.[(lengthLastExtension-1)-3..(lengthLastExtension-1)] let isValid2 = valid2|>Seq.exists(fun validEnd -> last4.EndsWith( validEnd) ) if isValid2 then true else if lengthLastExtension <= 4 then not( last4.Contains(".") ) else let last5 = lastExtension.[(lengthLastExtension-1)-4..(lengthLastExtension-1)] let isValid3 = valid3|>Seq.exists(fun validEnd -> last5.EndsWith( validEnd) ) if isValid3 then true else if lengthLastExtension <= 5 then not( last5.Contains(".") ) else let last6 = lastExtension.[(lengthLastExtension-1)-5..(lengthLastExtension-1)] let isValid4 = valid4|>Seq.exists(fun validEnd -> last6.EndsWith( validEnd) ) if isValid4 then true else not( last6.Contains(".") ) && not(lastExtension.[0..5] = "mailto") //Create the correct links / -> add the homepage , make them a comparabel Uri let hrefLinksToUri ( uri:ComparableUri ) (hrefLinks:string list) = hrefLinks |> List.map( fun link -> try if Seq.length link <4 then Some(new Uri( uri, link )) else if link.[0..3] = "http" then Some(new Uri(link)) else Some(new Uri( uri, link )) with | _ as ex -> Console.WriteLine(link); lock error (fun () ->error<-error.Add uri) None ) |> List.filter( fun link -> link.IsSome ) |> List.map( fun o -> o.Value) |> List.map( fun uri -> new ComparableUri( string uri ) ) //Treat uri , removing ajax last part , and only following links specified b Benoit let linksToFollow (hrefUris:ComparableUri list) = hrefUris |>List.map( treatAjax ) |>List.filter( fun link -> followHref link ) |>List.map( fun uri -> new ComparableUri( string uri ) ) |>Set.ofList let needToVisit uri = ( lock visited (fun () -> not( visited.Contains uri) ) ) && (lock error (fun () -> not( error.Contains uri) )) let getLinksToFollowAsyncDelay (delay:int) ( uri: ComparableUri ) = async{ let! links = getHtmlPrimitiveAsyncDelay delay uri lock visited (fun () ->visited<-visited.Add uri) let linksToFollow = getHref links |> hrefLinksToUri uri |> linksToFollow |> Set.filter( needToVisit ) |> Set.map( fun link -> if uri.Authority=link.Authority then link else link ) return linksToFollow } //Add delays if visitng same authority let getDelay(uri:ComparableUri) (authorityDelay:Dictionary<string,int>) = let uriAuthority = uri.Authority let hasAuthority,delay = authorityDelay.TryGetValue(uriAuthority) if hasAuthority then authorityDelay.[uriAuthority] <-delay+1 delay else authorityDelay.Add(uriAuthority,1) 0 let rec getLinksToFollowFromSetAsync maxIteration ( uris: seq<ComparableUri> ) = let authorityDelay = Dictionary<string,int>() if maxIteration = 100 then Console.WriteLine("Finished") else //Unite by authority add delay for those we same authority others ignore let stopwatch= System.Diagnostics.Stopwatch() stopwatch.Start() let newLinks = uris |> Seq.map( fun uri -> let delay = lock authorityDelay (fun () -> getDelay uri authorityDelay ) getLinksToFollowAsyncDelay delay uri ) |> Async.Parallel |> Async.RunSynchronously |> Seq.concat stopwatch.Stop() Console.WriteLine("\n\n\n\n\n\n\nTimeElapse : "+string stopwatch.Elapsed+"\n\n\n\n\n\n\n\n\n") getLinksToFollowFromSetAsync (maxIteration+1) newLinks getLinksToFollowFromSetAsync 0 (seq[ComparableUri( "http://twitter.com/" )]) Console.WriteLine("Finished") Some feedBack would be great ! Thank you (note this is just something I am doing for fun)

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  • MIPS $gp register

    - by Hristo
    Is there a danger in using the $gp register to store a value? I guess my question is what is the true functionality of $gp and is it invoked behind-the-scenes somehow so that if I were to use it, things could go very very wrong? Thanks, Hristo

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  • get cellid in j2me

    - by tavallaie
    I am using this code to get cell id from my sony erricson p990 cellphone but it set cellID value to "no property". Blockquote String cellID = System.getProperty("com.sonyericsson.net.cellid"); if(cellID == null) cellID = System.getProperty("CellID"); if(cellID == null) cellID = "no property"; Blockquote How can I solve this problem? Is signing the program solve the problem?

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  • WCF streaming files

    - by Pinu
    I need to pass a memory stream to the WCF server , how do i need to add this data type in my data contract. I will eventually need to convert this to a memory stream and pass it on to my service layer. datacontact[DataMember] Stream str = null; public Stream File { get { return str; } set { str = value; } }

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  • Merging column headers alone in JTable

    - by Harish
    Is there a way to merge column headers on click of a button but the values in the cell should get appeneded with each other? For instance: 10 15 20 25 30 A B C D E B C D A E 10 20 30 AB CD E BC DA E Actually the value A represents 10-15 B represents 15-20 and so on.Is this possible in JTable? Please don't confuse my earlier question with this.Here we try to merge two column headers not cells at the same time we append the values of the cell.

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  • Raik vs Amazon SimpleDB

    - by Fedrick
    Hi, I am looking for an eventually consistent key value data store and i decided to choose between Amazon SimpleDB and Riak ,so can anyone share their valuable experiences comparing both . Thanks in advance Fedrick

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