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Revision: 21783
at December 21, 2009 05:36 by tomaszsimon
Initial Code 
<%@ Page Language="C#" AutoEventWireup="true"  CodeFile="Default.aspx.cs" Inherits="_Default" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>Untitled Page</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <p>Equals: <%= this.TestValue %></p>
        <p>Pound: <%# this.TestValue %></p>
        <p>Equals label: <asp:Label runat="server" ID="_equals" Text="<%= this.TestValue %>" /></p>
        <p>Pound label: <asp:Label runat="server" ID="_pound" Text="<%# this.TestValue %>" /></p>
    </div>
    </form>
</body>
</html>

//And the code behind is:

public partial class _Default : System.Web.UI.Page 
{
    protected void Page_Load(object sender, EventArgs e)
    {
        _testValue = "2";
    }

    protected void Page_PreRenderComplete(object sender, EventArgs e)
    {
        // DataBind();
        _testValue = "3";
    }

    public string TestValue
    {
        get { return _testValue; }
    }

    private string _testValue = "1";
}
Initial URL 
http://blogs.msdn.com/dancre/archive/2007/02/13/the-difference-between-lt-and-lt-in-asp-net.aspx
Initial Description 
* The <%= expressions are evaluated at render time
    * The <%# expressions are evaluated at DataBind() time and are not evaluated at all if DataBind() is not called.
    * <%# expressions can be used as properties in server-side controls. <%= expressions cannot.

For controls add DataBind() in PreRender Event
Initial Title 
The difference between &lt%= and &lt%# in ASP.NET
Initial Tags 

                                

                                                            

                                    

                                        

                                        Initial Language
                                        

                                    

                                    
C#