silverlight-3.0

问题 I'm trying to create a simple checkbox, which is an image instead of the classic one. I managed to create the control and assign it different behaviours, but I can't make it to work when checking/unchecking. Here's the code : <UserControl.Resources> <ControlTemplate x:Key="CheckboxImageTemplate" TargetType="CheckBox"> <Image Name="imgTreble" MinWidth="100" Source="Images/treble_unchecked.png"/> </ControlTemplate> </UserControl.Resources> <StackPanel x:Name="LayoutRoot" Background="

问题 I'm writing a custom control which uses a template defined in the resources section of my XAML and I'd like to replace one or more template parts in an instance of my control at runtime. For example, if I have a part named "ActivePart" in the control's template, how do I replace the ActivePart's FrameworkElement in an instance of the control with a new FrameworkElement? I realise the Control.Template property is writeable, but I'd prefer to find a way to replace a specific part of that

问题 I have implemented a WCF service that uses a TransportWithMessageCredential binding and a custom UserNamePasswordValidator. I have a Silverlight 3 client connecting to this service. If I set valid credentials it works perfect, however, in the username validator I throw a SecurityTokenException if the username and password does not match. Now I have implemented a dummy service call just to verify the credentials, is there a "nicer" way of checking the credentials. A service method that accept

问题 Can I deserialize an object in the Silverlight 3.0 runtime that was serialized using the full .NET 2.0 runtime using the BinaryFormatter? I am using the following code to serialize an object to a ByteArray which we write to a DB table: MemoryStream serStream = new MemoryStream(); BinaryFormatter binFormatter = new BinaryFormatter(); binFormatter.Serialize(serStream, csMetric); serStream.Position = 0; return serStream.ToArray(); The Silverlight client then needs to retrieve this binary data

问题 Can I deserialize an object in the Silverlight 3.0 runtime that was serialized using the full .NET 2.0 runtime using the BinaryFormatter? I am using the following code to serialize an object to a ByteArray which we write to a DB table: MemoryStream serStream = new MemoryStream(); BinaryFormatter binFormatter = new BinaryFormatter(); binFormatter.Serialize(serStream, csMetric); serStream.Position = 0; return serStream.ToArray(); The Silverlight client then needs to retrieve this binary data

问题 I have some changes I need to make to the Silverlight toolkit Charting source I downloaded the Silverlight toolkit ... unzipped the source to a new directory Added the Controls.DataVisualization.Toolkit.csproj Project to my Solution Removed The reference in my silverlight application to System.Windows.Controls.DataVisualization.Toolkit and Added A project Reference to The Controls.DataVisualization.Toolkit.csproj Project I then changed the Legend.xaml to <Style TargetType="datavis:Legend">

问题 I'm trying to learn Expression Blend and SilverLight. What I'm trying to achieve is output the selected item from the combobox into a textBlock. Can any one point me in the right direction or show me some C# on how this is done? This is my current code: private void GetSubmitBtn(object sender, System.Windows.RoutedEventArgs e) { this.Message.Text = "Hello there " + this.Firstname.Text + " " + this.Surname.Text + ". You come from " + this.Origin.SelectedItem.ToString(); } 回答1: You could do

问题 Simple binding from C#: Binding binding = new Binding(SourceName); binding.Mode = BindingMode.TwoWay; BindingExpressionBase beb = SetBinding(SourceDependencyProperty, binding); I would like to detect whether or not the SetBinding was successful. SetBinding obviously knows when it has an issue because it displays in the Output window tracing when the application is running: System.Windows.Data Error: BindingExpression path error: 'InterestRate' property not found on 'Tc.Views.TestAccount' ...

问题 Within a Silverlight 3.0 application I want to use the AssemblyFileVersion to display the version information of the application. This is not the same as the AssemblyVersion and is typically retrieved in a .NET application using code such as: var executingAssembly = Assembly.GetExecutingAssembly(); var fileVersionInfo = FileVersionInfo.GetVersionInfo(executingAssembly.Location); var versionLabel = fileVersionInfo.FileVersion; Unfortunately Silverlight 3.0 runtime does not include the

问题 The .NET RIA Services are described as an n-tier framework for Silverlight. I have been wondering what the relation is between this framework and the Model-View-ViewModel pattern. Are they in conflict or can you see the potential for synergic combination? 回答1: .NET RIA Services and MVVM are synergistic, and aren't in conflict. For example, if I write a Catalog domain service that exposes Products and Categories on the server, and correspondingly have a Catalog domain context on the client...