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• Advice on String Similarity Metrics (Java). Distance, sounds like or combo?

  - by andreas

  Hello, A part of a process requires to apply String Similarity Algorithms. The results of this process will be stored and produce lets say SS_Dataset. Based on this Dataset, further decisions will have to be made. My questions are: Should i apply one or more string similarity algorithms to produce SS_Dataset ? Any comparisons between algorithms that calculate the 'distance' and the 'Sounds Like' similarity ? Does one family of algorithms produces more accurate results over the other? Does a combination give more accurate results on similarity? Can you recommend implementations that you have worked with? My implementation will include packages from the following libraries http://www.dcs.shef.ac.uk/~sam/simmetrics.html http://jtmt.sourceforge.net/ Regards,

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• Windows forms application blocks after station lock

  - by Silviu

  We're having a serious issue at work. We've discovered that after the station where the client was running is locked/unlocked the client is blocked. No repaint. So the UI thread is blocked with something. Looking at the callstack of the UI thread (thread 0) using windbg we see that a UserPreferenceChanged event gets raised. It is marshalled through a WindowsFormsSynchronizationContext using it's controlToSend field to the UI. It gets blocked by a call to the marshalling control. The method called is MarshaledInvoke it builds a ThreadMethodEntry entry = new ThreadMethodEntry(caller, method, args, synchronous, executionContext); This entry is supposed to do the magic. The call is a synchronous call and because of that (still in the MarshaledInvoke of the Control class) the wait call is reached: if (!entry.IsCompleted) { this.WaitForWaitHandle(entry.AsyncWaitHandle); } The last thing that i can see on the stack is the WaitOne called on the previously mentioned AsyncWaitHandle. This is very annoying because having just the callstack of the runtime and not one of our methods being invoked we cannot really point to a bug in our code. I might be wrong, but I'm guessing that the marshaling control is not "marshaling" to the ui thread. But another one...i don't really know which one because the other threads are being used by us and are blocked...maybe this is the issue. But none of the other threads are running a message loop. This is very annoying. We had some issues in the past with marshaling controls to the right ui thread. That is because the first form that is constructed is a splash form. Which is not the main form. We used to use the main form to marshal call to the ui thread. But from time to time some calls would go to a non ui thread and some grids would broke with a big red X on them. I fixed this by creating a specific class: public class WindowsFormsSynchronizer { private static readonly WindowsFormsSynchronizationContext = new WindowsFormsSynchronizationContext(); //Methods are following that would build the same interface of the synchronization context. } This class gets build as one of the first objects in the first form being constructed. We've noticed some other strange thing. Looking at the heap there are 7 WindowsFormsSynchronizationContext objects. 6 of these have the same instance of controlToSend, and the other one has some different instance of controlToSend. This last one is the one that should marshal the calls to the UI. I don't have any other idea...maybe some of you guys had this same issue?

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• DotNetOpenAuth OpenIdTextBox For Google/Yahoo

  - by user300992

  If I want to integrate DotNetOpenAuth (primary for people to use their Google/Yahoo accounts to login, not act as provider) into my existing site, is this one line control good enough? <rp:OpenIdTextBox ID="OpenIdTextBox1" runat="server" /> Say, if a user wants to login as Google, I can simply set the textbox to "https://www.google.com/accounts/o8/id" and then they can login. I tried it with my Google account, it seems working and I can get the token from HttpContext.Current.User.Identity.Name. Is this "one line" solution secure enough for production? or is it a "must" that I have to use "OpenIdSelector" or "OpenIDLogin" control? I also opened the .net template and some samples, they are very complicated. There are PAPE policies, xrds.aspx (for discovery), ConsumerKey + ConsumerSecret...etc. As a newbie, I am very confused. Any tips on this will be really appreciated. Thanks

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• Memory mapped files causes low physical memory

  - by harik

  I have a 2GB RAM and running a memory intensive application and going to low available physical memory state and system is not responding to user actions, like opening any application or menu invocation etc. How do I trigger or tell the system to swap the memory to pagefile and free physical memory? I'm using Windows XP. If I run the same application on 4GB RAM machine it is not the case, system response is good. After getting choked of available physical memory system automatically swaps to pagefile and free physical memory, not that bad as 2GB system. To overcome this problem (on 2GB machine) attempted to use memory mapped files for large dataset which are allocated by application. In this case virtual memory of the application(process) is fine but system cache is high and same problem as above that physical memory is less. Even though memory mapped file is not mapped to process virtual memory system cache is high. why???!!! :( Any help is appreciated. Thanks.

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• Looking for a simple interface for users to enter data for Silverlight application

  - by Edward Tanguay

  I have made a Silverlight application which can read data from various URLs. So users of the application who control a website can: FTP text and XML files onto their website put a clientaccesspolicy.xml in their root directory enter their URL in the silverlight application at which point the silverlight application then begins reading data from their site. I would like to extend this to less technical users who do not control a website, aren't adept with FTP, etc. What is the best service on the web that: allows users to publish different kinds of data, e.g. put out text files on web allows Silverlight client access (has clientaccesspolicy.xml set up) Some ideas are: free blog services (although then they are limited to a RSS feed, or the silverlight app would have to do some screen scraping) Google Docs? free cloud services? What free services allow easy publishing of any kind of data on the web and allow Silverlight client access?

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• AJAX is reloading page on a SharePoint site (SharePoint 2007 AJAX-enabled)

  - by Josh

  I have an AJAX-enabled SharePoint 2007 site. I have also created a user control that has an interactive ajax form. It obviuosly works like a charm locally, but I am trying to get it working on the SharePoint site. The problem is that once I load up the user control on to an aspx page inside SharePoint, the form (which has ajax), causes the page to reload every time a postback occurs. Can someone help point me in the direction of debugging this? - I really need to eliminate the page refreshes and have the ajax work correctly in SharePoint. I read that the ScriptManager has to be in the SharePoint masterpage, but that did not work either... Page still reloads everytime. Thanks.

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• What is Silverlight's relationship -- if any -- to WPF?

  - by xarzu

  I was working with a WPF application and I decided that the controls and graphics I wanted to display on the grid might look better if it was a silverlight component. I thought this way because of all the cool silverlight controls that look very flash-like. But now that I have gottem my Visual Studio 2010 set up with SIlverlight, it seems that every silverlight app I can make are ASP.NET in nature. It seems that instead of a cool GUI control to make, Silverlight is telling me that it is primarely a dataflow sort of application for the web. What is the relationship, if any, between WPF and Silverlight. Can I or can I not put a silverlight control into my existing WPF application?

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• C#, WinForms: Why aren't KeyDown events chaining up to Form? I have to add event handler to each chi

  - by blak3r

  As i understand it, when a button is pressed it should first invoke the Control which has focus' KeyDown Handler, then it call the KeyDown handler for any Parent controls, all the way up to the main form. The only thing that would stop the chain would be if somewhere along the chain one of the EventHandlers did: e.SuppressKeyPress = true; e.Handled = true; In my case, KeyDown events never get to the main form. I have Form - Panel - button for example. Panel doesn't offer a KeyDown Event, but it shouldn't stop it from reaching the main form right? Right now as a work around I set every single control to call an event handler I wrote. I'm basically trying to prevent Alt-F4 from closing the application and instead minimize it.

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• WPF Two Commands handlers, One Command

  - by Aran Mulholland

  Im deriving from a third party control. It is implementing ApplicationCommands.SelectAll. However the behaviour i want is slightly different. there is no virtual method i can override, and when i register a class handler, like so CommandManager.RegisterClassCommandBinding(typeof(MyDerivedControl), new CommandBinding(ApplicationCommands.SelectAll, new ExecutedRoutedEventHandler(OnExecutedSelectAll), new CanExecuteRoutedEventHandler(OnCanExecuteSelectAll))); My methods do not get called. The third party control i am deriving from is marking e.Handled=true; in its command handlers ( i know this cause i have seen the source, but i cant modify it ) What can i do?

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• How do i get an MKAnnotationView's coords?

  - by tarnfeld

  I have a method like this: - (void)mapView:(MKMapView *)mapView annotationView:(MKAnnotationView *)view calloutAccessoryControlTapped:(UIControl *)control Using this, can i get the coordinates?

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• Redirecting from ASP.NET WebForms to MVC

  - by Paul Gordon

  Hi there, We have a large existing ASP.NET WebForms application, but we are now moving over to MVC. Rather than go through a painful process of trying to integrate MVC into the existing app, we're looking at creating a brand new VS project to completely isolate the new code. As a first step, we are wanting to use the existing login process of the WebForms app, then redirect over to the MVC app. Does anyone know of an easy way to do this (i.e. redirect from a WebForms project to the MVC project, in the same VS solution)? All the information I've found so far suggests either starting from scratch in MVC, or combing MVC into the existing Webforms project - neither of which is very feasible. Many thanks, Paul

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• How do I execute a command on a successful build on TFS2010?

  - by Simon_Weaver

  I've got TFS2010 up and running and building a webdeploy deployment package. Into my directory: C:\TFS-BUILDS\Example Build\Example Build_20100414.44\_PublishedWebsites I get the following two directories: WebsiteName WebsiteName_Package All I want to do is run the following command on a successful build - to deploy the site: WebsiteName_Package\WebsiteName.deploy /Y How can I customize the build process template to actually run that package? Under TFS 2010 you have to use the process templates (no more TFSBuild.csproj stuff). I've tried duplicating the DefaultProcessTemplate.xaml file, but it basically kills my Visual Studio when I open it. How can I edit the .xaml by hand to run this simple command on a successful build

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• Passing parameters to a flash movie inserted in a VB program

  - by Michael

  Hi! I need to insert a Flash movie in a Visual Basic 2008 express form and send parameters to the movie, but am a newbie to VB. The flash movie will plot points sent by VB in a graph. I tried to insert the Shockwave Flash control in the form but cannot find it anywhere. So I inserted the webbrowser control, which I understand can be used to a similar purpose. But how would I send the values of X and Y (coordinates to plot in Flash) to the flash swf? Thanks for any help!

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• How can a Delphi TForm / TPersistent object calculate its own deserialization time?

  - by mjustin

  For performance tests I need a way to measure the time needed for a form to load its definition from the DFM. All existing forms inherit a custom form class. To capture the current time, this base class needs overriden methods as "extension points": start of the deserialization process after the deserialization (can be implemented by overriding the Loaded procedure) the moment just before the execution of the OnFormCreate event So the log for TMyForm.Create(nil) could look like: - 00.000 instance created - 00.010 before deserialization - 01.823 after deserialization - 02.340 before OnFormCreate Which TObject (or TComponent) methods are best suited? Maybe there are other extension points in the form creation process, please feel free to make suggestions.

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• Building Visual studio like application, need inputs..

  - by akjoshi

  Hi, I am working on a Visual studio like application i.e. hava a tolbox, an editor and property grid similar to VS. ser can drag and drop the controls(custom and third party) to the editor window and perform operations like resize, move, align, group etc.; Properties of that control needs to be displayed in property grid and user can update them from there. As per my current understanding I will have to extend the Canvas to create my own editor and and Interface for controls which it supports; Each supported control will have to implemnt this interface so that it can be placed in our editor. Something similar to this - http://www.codeproject.com/KB/WPF/WPFDiagramDesigner_Part4.aspx Looking forward for any kind of help, comment or links.

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• "Invalid Postback or callback argument" on modifying the DropDownList on the client side

  - by gnomixa

  I know why it's happening and i turned the validation on the page level, but is there a way to turn it off on the control level? "Invalid Postback or callback argument . Event validation is enabled using in configuration or <%@ Page EnableEventValidation="true" %in a page. For security purposes, this feature verifies that arguments to Postback or callback events originate from the server control that originally rendered them. If the data is valid and expected, use the ClientScriptManager.RegisterForEventValidation method in order to register the Postback or callback data for validation."

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• how to automate upsizing from Access to SQL Server?

  - by Arne

  Hi, I need to automate the migration from an Access (2003) to an SQL Server DB (2005 or 2008). The upsizing should be done automatically as part of a build process. I need that because there are 2 versions of the software, a single user rich client and a web version. Access DB is used for single user to minimize setup effort, SQL Server to improve performance and scaling with many simultanious users. Access should be the "leading" DB, meaning devs do changes in Access DB and those are propagated to the SQL server within the build process. Many changes will occur, so doing it manually is not an option. I am new to the Microsoft world, so I dont know appropriate tools for that. What tools can I use and how? I know how to do it (by clicking) with the upsizing assistant. Perhaps I can automate that somehow? Thanks in advance for your answers. Cheers, Arne

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• Can a ScatterViewItem dynamically resize to fit its content?

  - by Brett

  We're hosting a control inside of a ScatterViewItem that dynamically changes its size at runtime as a result of having various sub-elements added, removed, and/or collapsed. We would like to have the hosting ScatterViewItem resize as well to properly fit its child controls, but we're having a hard time making this happen. We've tried a number of different things and the closest we've come is hooking into the child control's SizeChanged event and explicitly setting the ScatterViewItem's Width and Height, but this approach still has issues. When you define a ScatterViewItem and its content in XAML, the ScatterViewItem is sized appropriately. We would like to force the same behavior at runtime when its content changes size. Any help would be greatly appreciated. Thanks!

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• Using Agile development when building websites

  - by Sam

  Is it possible / plausible to apply Agile development to the website building process including planning, design and development?

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• PowerBuilder Indeterminate Progress Bar

  - by Adam Hawkes

  I have a somewhat-long-running stored procedure being called from a PB application. I want the UI to show an indicator that it is processing, but I don't know the exact progress. That is, I can't say whether it is 10% or 90% done. All I know is when it is done. To give the user something to look at I'd like to put a "Inderterminate" (horizontal) progress bar on the window somewhere. I've looked at the documentation for the built-in HProgressBar control and don't see how to force this behavior. Short of writing my own control or importing another one, is there a way to accomplish this?

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• Detecting (on the server side) when a Flex client disconnects from BlazeDS destination

  - by Alex Curtis

  Hi all, I'd like to know whether it's possible to easily detect (on the server side) when Flex clients disconnect from a BlazeDS destination please? My scenario is simply that I'd like to try and use this to figure out how long each of my clients are connected for each session. I need to be able to differentiate between clients as well (ie so not just counting the number of currently connected clients which I see in ds-console). Whilst I could program in a "I'm now logging out" process in my clients, I don't know whether this will fire if the client simply navigates away to another web page rather than going though said logout process. Can anyone suggest if there's an easy way to do this type of monitoring on the server side please. Many thanks, Alex

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• Ellipse Drawing WPF Animation

  - by widmayer

  I am developing a control that is a rectangle area and will draw an ellipse in the rectangle area when a trigger occurs. This control will be able to host other controls like, textbox's, buttons, etc. so the circle will be drawn around them when triggered. I want the circle being drawn as an animation like you were circling the inner controls with a pen. My question is whats the best way to accomplish this. I've been doing some research and I could use WPF animation or I could use GDI+ to accomplish the tasks. I am new to WPF animation so that is why I am asking the question.

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• ASP.NET mvc on mono 2.2

  - by Markus

  Hi, I am having a trouble. I am trying to run asp.net mvc 1.0 on mono 2.2.I have copied the system.web.mvc.dll to bin directory. I have done HttpContext.Current.RewritePath("/Home/Index");. Still I am having te error: Server Error in '/' Application The incoming request does not match any route Description: HTTP 500. Error processing request. Stack Trace: System.Web.HttpException: The incoming request does not match any route at System.Web.Routing.UrlRoutingHandler.ProcessRequest (System.Web.HttpContextBase httpContext) [0x00000] at System.Web.Routing.UrlRoutingHandler.ProcessRequest (System.Web.HttpContext httpContext) [0x00000] at System.Web.Routing.UrlRoutingHandler.System.Web.IHttpHandler.ProcessRequest (System.Web.HttpContext context) [0x00000] at MvcApplication4._Default.Page_Load (System.Object sender, System.EventArgs e) [0x00000] at System.Web.UI.Control.OnLoad (System.EventArgs e) [0x00000] at System.Web.UI.Control.LoadRecursive () [0x00000] at System.Web.UI.Page.ProcessLoad () [0x00000] at System.Web.UI.Page.ProcessPostData () [0x00000] at System.Web.UI.Page.InternalProcessRequest () [0x00000] at System.Web.UI.Page.ProcessRequest (System.Web.HttpContext context) [0x00000] Version information: Mono Version: 2.0.50727.1433; ASP.NET Version: 2.0.50727.1433

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• how to invoke onclick function in html from vb.net or C#

  - by vbNewbie

  I am trying to invoke the onclick function in an html page that displays content. I am using the httpwebreqest control and not a browser control. I have traced the function and tried to find the link it calls but looking at the code below I tried inserting the link into the browser with the main url but it does not work. <div style="position:relative;" id="column_container"> <a href="#" onclick=" if (! loading_next_page) { loading_next_page = true; $('loading_recs_spinner').style.visibility = 'visible'; **new Ajax.Request('/recommendations?directory=non-profit&page=**' + next_page, { onComplete: function(transport) { if (200 == transport.status){ $('column_container').insert({ bottom: transport.responseText }); loading_next_page = false; $('loading_recs_spinner').style.visibility = 'hidden'; next_page += 1; if (transport.responseText.blank()) $('show_more_recs').hide(); } } }); } return false; Any ideas would be deeply appreciated.

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• How Gridview co-operates with ObjectDataSource?

  - by sanjuro

  Hi, how Gridview co-operates with ObjectDataSource internally? When you set DataSourceID of GridView, assigned ObjectDataSource take care of such things as paging and sorting, but i don't have full control above databinding itself, on the other side when i set datasource of gridview in code-behind: protected void Page_Load(object sender, EventArgs e) { if (!IsPostBack) { testGridView.DataSource = testObjectDataSource.Select(); testGridView.DataBind(); } } Now i have full control, but i have lost the advantage of comfort sorting and paging. And that co-operation between ObjectDataSource and Gridview became mystery for me. So can anybody explain me in details how ObjectDataSource and Gridview co-operates under the hood? I want to understand it in order to write my own smart code or own gridview that will mimic this co-operation. Many thanks for answers.

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