silverlight-4.0

I have a simple WCF service that exposes a REST endpoint, and fetches files from a BLOB container. The service returns the file as a stream. i stumbled this post about closing the stream after the response has been made : http://devdump.wordpress.com/2008/12/07/disposing-return-values/ This is my code: public class FileService { [OperationContract] [WebGet(UriTemplate = "{*url}")] public Stream ServeHttpRequest(string url) { var fileDir = Path.GetDirectoryName(url); var fileName = Path.GetFileName(url); var blobName = Path.Combine(fileDir, fileName); return getBlob(blobName); } private Stream

I am new to mvvm. I have a listbox in my silverlight application which is binded to a observable collection in view model i want to make the listbox with first item selected. I tired this but it doesnt work. <ListBox Height="431" Canvas.Left="17" Canvas.Top="77" Width="215" FontSize="13" ItemsSource="{Binding Path=Categorys, Mode=TwoWay}" DataContext="{Binding}" SelectedItem="{Binding CurrentCategory, Mode=TwoWay}" ItemTemplate="{StaticResource CategoryDataTemplate}" ScrollViewer.HorizontalScrollBarVisibility="Disabled" Name="lst_category"> then i added this in mainpage load of mainpage

Though TPL is widely accepted as a feature of C# 4.0 , but heard that it is not supported on SL4, but SL5. Could not find any solid evidence of it. So why the do MicroSoft implemented a feature in WPF but not Silverlight, though both sl4 and wpf4 released around same time. If you need TCL in Silverlight 4 you can add the " Microsoft.Bcl " and "Microsoft.Bcl.Async" nuGet packages to your project. They implement part of what TCL delivers in .net. More info can be found here Don't forget you have to use the TaskEx class instead. Hoped it helped. 来源： https://stackoverflow.com/questions/18396139

I have a requirement to focus on a specific textbox when a new view is loaded. The solution was to add this line of code to the OnLoaded event for the view: Dispatcher.BeginInvoke(() => { NameTextBox.Focus(); }); So this worked for one view, but not another. I spent some time debugging the problem and realized that the new view I was working on had a BusyIndicator that takes focus away from all controls since the BusyIndicator being set to true and false was occuring after the OnLoaded event. So the solution is to call focus to the NameTextBox after my BusyIndicator has been set to false. My

Here's the problemo: My Silverlight application is calling a HTTP web service, using WebClient, called getCampaigns which returns a JSON array of data for Campaign objects. The user can then interact with the requested objects, modifying them, removing them, etc. When the user removes a campaign, Silverlight calls another web service, which flags the object in the database so it won't be returned in the future, and then refreshes the page by calling getCampaigns. The problem is the removed campaign still shows up. If I check the database, the campaign truly has been disabled, and if I close

I have created a class like below: class myclass { Public int myint; } Now I want to restrict the range of myint(min 5 and max 10). I want if any one set the value of myint which is not in the range it will give a compile time error(not runtime error) please help me how to achive it. It's experimental, but you could look into Spec# . It can provide you with more compile-time checks. Code Contracts are another option (but that's only available in certain editions of Visual Studio). Edit: Looks like code contacts may now be available as a standalone download! See this page ! You don't have that