ASP.NET 2.0 new features

作者： unknow

From quickstart:

Simplified Code Behind Model New in 2.0

ASP.NET 2.0 introduces an improved runtime for code-behind pages that simplifies the connections between the page and code. In this new code-behind model, the page is declared as a partial class, which enables both the page and code files to be compiled into a single class at runtime. The page code refers to the code-behind file in the CodeFile attribute of the <%@ Page %> directive, specifying the class name in the Inherits attribute. Note that members of the code behind class must be either public or protected (they cannot be private).

C# CodeBehind Code Separation

The advantage of the simplified code-behind model over previous versions is that you do not need to maintain separate declarations of server control variables in the code-behind class. Using partial classes (new in 2.0) allows the server control IDs of the ASPX page to be accessed directly in the code-behind file. This greatly simplifies the maintenance of code-behind pages.

这对开发来说确实是一个改进,CodeBehind中去掉server control的声明会使代码"清爽"很多，看起来舒服多了。请看示例:

这对开发来说确实是一个改进,CodeBehind中去掉server control的声明会使代码"清爽"很多，看起来舒服多了。请看示例:

页面中我们放置一个textbox:

Test.aspx

<%@ page language="C#" CodeFile="Test.aspx.cs" Inherits="Test_aspx" %>

<html>
<head>
    <title>Test ASP.NET 2.0</title>
</head>
<body>
    <form runat="server">
      <asp:TextBox ID="TextBox1" Runat="server"/>
      <asp:Button ID="Button1" Text="Click Me" OnClick="Button1_Click" Runat="server"/>
      <br />
      <br />
    </form>
</body>
</html>

Test.aspx.cs

using System;

public partial class Test_aspx: System.Web.UI.Page
{
    protected void Button1_Click(object sender, EventArgs e)
    {
        Response.Write ( "Hi,you have entered the word: " + TextBox1.Text);
    }

}

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