Silverlight DataGrid group header style sample (CSSL4DataGridGroupHeaderStyle)

This project illustrates how to define group header style of different levels and define group header style according to group header content.

C# (48.5 KB)
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;

namespace CSSL4DataGridGroupHeaderStyle
    public partial class App : Application

        public App()
            this.Startup += this.Application_Startup;
            this.Exit += this.Application_Exit;
            this.UnhandledException += this.Application_UnhandledException;


        private void Application_Startup(object sender, StartupEventArgs e)
            this.RootVisual = new MainPage();

        private void Application_Exit(object sender, EventArgs e)


        private void Application_UnhandledException(object sender, ApplicationUnhandledExceptionEventArgs e)
            // If the app is running outside of the debugger then report the exception using
            // the browser's exception mechanism. On IE this will display it a yellow alert 
            // icon in the status bar and Firefox will display a script error.
            if (!System.Diagnostics.Debugger.IsAttached)

                // NOTE: This will allow the application to continue running after an exception has been thrown
                // but not handled. 
                // For production applications this error handling should be replaced with something that will 
                // report the error to the website and stop the application.
                e.Handled = true;
                Deployment.Current.Dispatcher.BeginInvoke(delegate { ReportErrorToDOM(e); });

        private void ReportErrorToDOM(ApplicationUnhandledExceptionEventArgs e)
                string errorMsg = e.ExceptionObject.Message + e.ExceptionObject.StackTrace;
                errorMsg = errorMsg.Replace('"', '\'').Replace("\r\n", @"\n");

                System.Windows.Browser.HtmlPage.Window.Eval("throw new Error(\"Unhandled Error in Silverlight Application " + errorMsg + "\");");
            catch (Exception)