silverlight-4.0

问题 I have a memorystream in a silverlight app. I have to copy this memorystream to a filestream object. If I call: memoryStream.Position = 0; memoryStream.Seek(0,SeekOrigin.Begin); It does not work, I debug the application, check the properties of the memorystream, and the position still points to the end of the file. Any clues? 回答1: Is it possible that another of your properties is being triggered in the debugger, and reading through the stream? Rather than using the debugger, what happens if

问题 The Silverlight Toolkit has a lovely ContextMenu, which can be shared among multiple instances of controls such as Textbox. Sharing can result from the ContextMenu being declared in a container which also hosts other controls. <StackPanel> <TextBox x:Name="box1" Text="{Binding str1}" /> <TextBox x:Name="box2" Text="{Binding str2}" /> <toolkit:ContextMenuService.ContextMenu> <toolkit:ContextMenu Name="cm"> <toolkit:MenuItem Name="cmiCut" Header="Cut" /> <toolkit:MenuItem Name="cmiCopy" Header=

问题 I have a combobox defined as follows: <ComboBox x:Name="cboDept" Grid.Row="0" Margin="8,8,8,8" HorizontalAlignment="Left" VerticalAlignment="Top" Width="120" ItemsSource="{Binding Source={StaticResource cvsCategories}}"> <ComboBox.ItemTemplate> <DataTemplate> <StackPanel Orientation="Vertical" Width="Auto" Height="Auto"> <sdk:Label Content="{Binding CategoryID}" Height="20" /> <sdk:Label Content="{Binding CategoryName}" Height="20" /> </StackPanel> </DataTemplate> </ComboBox.ItemTemplate> <

问题 I am making a silverlight interface for a discussion board. The boards web interface allows the usual HTML tags like i,a,img,b,u. So now I need to be able to display that in Silverlight. This: http://www.vectorlight.net/silverlight/controls/rich_textblock.aspx seemed like exactly what I need except that it hardly displays anything right. Every HTML(i've made sure it's valid with HTMLAgility) string I give it either makes the whole SL app go white, or the block displays all the text on top of

问题 I need to set the rounded corners inside the grid control using silverlight 4. When I tried to do something like this: <Border BorderThickness="2" BorderBrush="#FF3EA9F5" Grid.Row="1" CornerRadius="5,5,0,0" Height="10" VerticalAlignment="Bottom"> <Grid x:Name="Phani1" Width="auto"> </Grid> </Border> I am able to see rounded corners outside the grid. But I want to grid to appear as a rectangle from outside border. But the inside corners of the grid should appear as rounded. Please let me know

问题 This is as far as I've gotten. What code would I write to save a captured image to the server? Without any dialog prompting for a save location. Similar to the way Facebook does it. (I've been unable to find examples online) void CaptureSource_CaptureImageCompleted(object sender, CaptureImageCompletedEventArgs e) { capturedImage.ImageSource = e.Result; stopCapture(); // turns off webcam } 回答1: It is not that simple. Create a WCF service on the server. Consume it on the silverlight client.

问题 I want to stream a video file in my windows phone application.. After i have researched, the smooth streaming media element would do this, I believe. but when im assigning the SmoothStreamingSource to "http://www.streaming/video.mp4" the player does not show any video. But when i change the source to an .ism file it buffered and the video was playing. but I will only the video UTL from my web service. Pls help me in how to do this im WP apps. Here is my code: Using .ism file which works good:

问题 In silverlight project that uses datagrid, I am using some column that defines "Label number" which is a Varchar. I want to sort this column as described in natural sort order as described in "http://www.interact-sw.co.uk/iangblog/2007/12/13/natural-sorting" or any possible way. When I look around datagrid I saw SortMemberPath="stringProperty" only. Hence, my sorting is just working like string sorting only. For example: Z1 Z10 Z2 Z20 where as I want it to sort like: Z1 Z2 Z10 Z20 It will be

问题 Maybe it is a simple question, but I can’t find the answer. I have three User controls that are different only with colour. There is code one of them: <UserControl x:Class="SilverlightApplication14.NodePicture" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:local="clr-namespace:SilverlightApplication14"> <UserControl.Resources> <local:NodeViewModel x:Key="Children" /> </UserControl.Resources> <Grid x:Name=

问题 We use NugetPowerTools PackageRestore to avoid putting our packages folder in svn. This works building .NET projects with Visual Studio and MSBuild. It also works building Silverlight projects with Visual Studio. However, when we use MSBuild to build Silverlight projects, the build fails. This appears to have to do with the tasks in Microsoft.Silverlight.Common.targets . Looking at the MSBuild output, it appears to get to the step GetXapOutputFile before it errors. Something either in that