silverlight-4.0

问题 I have a ParentView that contains a childView <UserControl ... x:Name="MyParentView"> <Grid> <sdk:TabControl Name="ContactTabControl"> <sdk:TabItem Header="Contact" Name="CustomerTabItem"> <Grid> <Views:CustomerView/> </Grid> </sdk:TabItem> </sdk:TabControl> </Grid> </UserControl> Within my CustomerView I would like to bind the Firstname textbox to Parent's DataContext. I have tried this inside the CustomerView: <TextBox Text={Binding ElementName=MyParentView, Path=DataContext.Firstname} /> I

问题 I'm using Silverlight 4 to print but I would like some sort of progress bar or busy indicator. I've tried to using a progress bar but it is not really working. The 2 issues I have are: the progress bar does not indicate progress, I have IsIndeterminate=True, but it does not animate when printing starts (Print dialog's Print button is clicked) the progress bar visibility is not being set at the proper time, depending upon where I put the code to set visibility it displays either too soon

问题 I am developing silverlight 4 application. I am using the following listbox for dynamic binding <ListBox Margin="44,100,46,138" x:Name="lstbox1"> <ListBox.ItemTemplate> <DataTemplate> <StackPanel Orientation="Vertical"> <TextBlock Text="{Binding A1}" Foreground="Gray" FontSize="14" Width="100" Height="20" ></TextBlock> <TextBlock Text="{Binding A2}" Foreground="Red" Width="100" Height="20" ></TextBlock> <Line X1="-3400" Y1="32" X2="10" Y2="32" Stroke="Gray" StrokeThickness="1"/> </StackPanel>

问题 Put folloing xaml for Currency formating, but not working. Why? <sdk:DataGridTextColumn Header="Amount" Binding="{Binding Amount, StringFormat={}{0:C}}" /> 回答1: Try... <sdk:DataGridTextColumn Header="{Binding Amount, StringFormat=Amount: {0:C}}"/> 回答2: Make sure that Amount is in numeric type. Strings won't format. 来源： https://stackoverflow.com/questions/4465348/string-format-not-working-for-datagridtextcolumn

问题 I am using DevForce 2010 and Silverlight 4. When saving entities that contain large amount of binary data, I get this error: Unhandled Error in Silverlight Application The remote server returned an error: NotFound. When debuging the application I see these errors: Unhandled Error in Silverlight Application Insufficient memory to continue the execution of the program. Bad CRC32 in GZIP stream. I found this thread on Ideablades forum that discusses the problem: http://www.ideablade.com/forum

问题 (I asked this question earlier, but had forgotten to mention some constraints. This is for Windows Phone 7.1 (Mango) with Silverlight 4 and C# 4, which lacks System.Threading.Tasks , await and more. I'm asking again in hope for a native solution without 3rd party libs like this.) I'm wrapping a library for my own use. To get a certain property I need to wait for an event, which fires pretty quick. I'm trying to wrap that into a blocking call. Basically, I want to turn void Prepare() { foo =

问题 I have created a silverlight application with PRISM and MEF. Is there a way to populate the modules catalog through some web service or database call? The example shown in the PRISM documentation gets the module information through XAP file which is included in the Shell project. In my case i need to get this list from some service. I read some articles which suggested to create a custom ModuleCatalog which implements IModuleCatalog. I am not able to find any example or code snippet on how to

问题 While RIA services seems very good for table operations & queries, I am stuck on one traditional update situation. The UPSERT (Update if exists, else Insert new): First: I want to add a record server-side if the record does not already exist, otherwise if it already exists, I want to update one of its current field values. Second: I do not want to query the database from client-side, to see if the record exists. I just want to call an "UpsertData" method on RIA services and have the add or

问题 Trying to create a new project in VS2010 (on Windows 7 64-bit) of type Windows Phone Application , I get the error: You need to install the Silverlight 4.0 SDK before creating a Silverlight for Windows Phone project. Download the Silverlight 4.0 SDK from: [link omitted] If I try to install Silverlight 4.0 SDK, I get: A newer version of Microsoft Silverlight 4 SDK is already installed. I have completely uninstalled and resintalled VS2010 (and SP1 service pack) as well as everything related to

问题 I am trying to port an application from WPF to Silverlight but it fails on some very simple binding. I have the following simple example: <ListBox > <ListBox.ItemContainerStyle> <Style TargetType="ListBoxItem"> <Setter Property="Canvas.Top" Value="{Binding X}"></Setter> </Style> </ListBox.ItemContainerStyle> <ListBox.ItemsPanel> <ItemsPanelTemplate> <Canvas></Canvas> </ItemsPanelTemplate> </ListBox.ItemsPanel> </ListBox> However, Silverlight parsing crashes. However, if I replace the binding