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Declarative Codesnippet Automation with T4 Templates

, 20 Apr 2011
This article describes a technique for automating codesnippets which are associated with a class via attributes. This results in a declarative approach to the generation of boiler-plate code.
CodesnippetAutomation.zip
CodeSnippetAutomation
CodeSnippetAutomation.suo
CodeSnippetAutomation
CodeGen
Snippets
inpc.snippet
prop_inpc.snippet
CodeSnippetAutomation.csproj.user
Properties
SilverTrackProject
SilverTrack
CodeGen
Snippets
dp.snippet
inpc.snippet
prop_inpc.snippet
controls
gauge
converters
data.csv
images
addchart.png
bg.png
end.png
flag.png
info.png
playpauseicon.png
restart.png
yellowbg.png
lib
Microsoft.Expression.Controls.dll
Microsoft.Expression.Drawing.dll
Visiblox.Charts.dll
Properties
SilverTrack.csproj.user
SilverTrack.csproj.vs10x
Themes
Util
View
ViewModel
SilverTrackData
Importer
Properties
SilverTrackData.csproj.vs10x
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 CodeSnippetAutomation
{
  public partial class App : Application
  {

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

      InitializeComponent();
    }

    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)
    {
      try
      {
        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)
      {
      }
    }
  }
}

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License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

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About the Author

Colin Eberhardt
Architect Scott Logic
United Kingdom United Kingdom
I am CTO at Visiblox which have developed the world's fastest WPF / Silverlight and WP7 charts.
 
I am also a Technical Evangelist at Scott Logic, a provider of bespoke financial software and consultancy for the retail and investment banking, stockbroking, asset management and hedge fund communities.
 
Visit my blog - Colin Eberhardt's Adventures in .NET.
 
Follow me on Twitter - @ColinEberhardt
 
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