silverlight-4.0

问题 <Grid x:Name="LayoutRoot" Background="White"> <sdk:TreeView MouseLeftButtonDown="TreeView_MouseLeftButtonDown"> <sdk:TreeViewItem Header="this is first item"/> </sdk:TreeView> </Grid> call is not coming to TreeView_MouseLeftButtonDown event handler.. any ideas or work around? 回答1: Have you ever noticed that the MouseLeftButtonDown and MouseLeftButtonUp events are not fired when a Silverlight button is clicked? The reason for this is that the button handles these two events itself by

问题 I would appreciate some help with the following issue - you can see this problem on my live poker blinds timer: The main clock (Blind timer countdown) starts off on 20:00 and then jumps to 19:58. The Level timer (which counts up at top of screen) - starts off in synch and is therefore a second out. Here is my code: XAML: TextBlock Text="{Binding TimeLeftInCurrentBlindFormatted}" and my Tournament class: private DispatcherTimer timerBlind; private DateTime? blindTimeStarted = null; public

问题 I created my first Silverlight application. In the client project, I want to define a Dataset object. To do so, I figured I first need to reference the System.Data namespace in the dll of the same name. When I add a reference to the dll, I get a msg that "it was successfully added," I see thje dll in copied to the bin folder, and then it promptly removes the referenced dll from the bin folder. Why? 回答1: There is no Dataset class in the Silverlight SDK in fact there is no System.Data namespace

问题 I'm using a ListBox to display all values contained in Dictionary<> object: <ListBox Height="519" x:Name="ContactsListBox" Width="460" Margin="0,0,0,0" SelectionChanged="ContactsListBox_SelectionChanged"> <ListBox.ItemTemplate> <DataTemplate> <StackPanel Orientation="Vertical"> <TextBlock Text="{Binding Key}" Margin="5" Foreground="{StaticResource PhoneAccentBrush}"/> <TextBlock x:Name ="LastNameData" Text="{Binding Value}" Margin="20, 0" /> </StackPanel> </DataTemplate> </ListBox

问题 I'm simply wondering if it is possible to open one or more non-modal popups or dialogs, which are NOT limited to be displayed and moved within the bounds of the parent Silverlight control. Doesn't seem to be possible, even for out-of-browser installs. I hope I'm wrong :) 回答1: While the previous answers are true, strictly speaking it is possible in browser mode to have a real popup. At the moment it can only be done indirectly and with a lot more work than a normal Silverlight popup Window.

问题 I have a (likely common) case where I would like to reuse the same class for both adding a new entity and editing an existing entity in my silverlight app (SL4, WCF RIA, EF4, Linq-to-Entities). When adding a new one, I would like my custom validator to check for uniqueness and fail if it's not unique. However, when editing, I don't want that same validator to prevent edits. Is there a way to temporarily turn off validation for a single field (ideally by validation type so that the other

问题 I want to add the ability to drag a user control from one part of a Silverlight 4 page onto another user control on the same page (not talking about the new Silverlight 4 ability to drag a file from the OS onto the page). What approach is most straightforward? What approach offers the most flexibility? Here are some alternatives I found so far SO drag-and-drop-control-for-silverlight. Same question but answers apply to SL 2. Alex van Beek's DragManager. Written for SL3. Silverlight Drag Drop.

问题 I have seen that SL4 support drag and drop from the desktop to the application, but is it possible to drag and drop from the application to the desktop ? Thanks, 回答1: No, it does not support this scenario. 来源： https://stackoverflow.com/questions/2528904/does-silverlight-4-support-drag-and-drop-from-app-to-desktop

问题 I am new to Silverlight, I have created an application having DLL Project, Silverlight project, and Silverlight.web project. Now I wanted to publish or deploy it in the IIS so that I can test the Silverlight web application. Can someone help me to deploy and publish silverlight web application? 回答1: Right Click the Silverlight.Web project in Visual Studio. Select the publish option. Enter your web site configuration in "Publish Web" window. If you are really new to IIS you can find a very

问题 I'm trying to install a XAP file offline using sllauncher but it is not working. UPDATE I erased all the existing references and folders for my app and now it seems to be working. I will leave this up as it has some good clues on how to solve this. C:\Documents and Settings\Rod\Local Settings\Application Data\Microsoft\Silverlight\OutOfBrowser\index I made a bat file with the following: "%ProgramFiles%\Microsoft Silverlight\sllauncher.exe" /install:"c:\TourneyManager.xap" /origin:"http://www