WF4 hosting option

• WorkflowInvoker

  Simple "method call" style of workflow execution for short-lived worklfow (persistence is not allowed)

Debugging T4

1. add "template debug="true""
2. cd %temp%, and find the latest generated cs file
3. Add System.Diagnostics.Debugger.Break() in you template file, below is example of simple template.

vs.net template

User' template location C:\Documents and Settings\[user_name]\My Documents\Visual Studio 2010\Templates\ItemTemplates C:\Documents and Settings\[user_name]\My Documents\Visual Studio 2010\Templates\ProjectTemplates

The "OnDelete" property of navigation in Entity Framework

This property affects the the behavior of entity framework when delete an entity. Here are two scenario.

[Fact]
        public void can_delete_order_with_lines_loaded()
        {
            TestEntities db = new TestEntities();
            Order o1 = db.Orders.Include("OrderLines").First();
            db.DeleteObject(o1);
            db.SaveChanges();

jQuery.globalEval

$.globalEval utility is a useful function, because it is preferred compare with eval in calling ajax script. What it does is adding script tag to document, then remove it later.

globalEval: function( data ) {
 if ( data && rnotwhite.test(data) ) {
  // Inspired by code by Andrea Giammarchi
  // http://webreflection.blogspot.com/2007/08/global-scope-evaluation-and-dom.html
  var head = document.getElementsByTagName("head")[0] || document.documentElement,
   script = document.createElement("script");