url重寫以後postback重寫失效解決方案2 PageBase

讓所有頁面內建一下類即可實作url重寫以後保持postback位址

用.browser檔案也可以處理

using System;

using System.Web;

using System.Web.UI;

using System.IO;

using System.Text;

using System.Text.RegularExpressions;

using System.Configuration;

namespace BLL

{

/// <summary>

/// PageBase 的摘要說明。

/// </summary>

public class PageBase : Page

{

private static object obj = new object();

<summary>

/// 重寫預設的HtmlTextWriter方法，修改form标記中的value屬性，使其值為重寫的URL而不是真實URL。

/// </summary>

/// <param name="writer"></param>

protected override void Render(HtmlTextWriter writer)

{

if (writer is System.Web.UI.Html32TextWriter)

{

writer = new FormFixerHtml32TextWriter(writer.InnerWriter);

}

else

{

writer = new FormFixerHtmlTextWriter(writer.InnerWriter);

}

base.Render(writer);

}

}

public class FormFixerHtml32TextWriter : System.Web.UI.Html32TextWriter

{

public FormFixerHtml32TextWriter(TextWriter writer)

: base(writer)

{

}

public override void WriteAttribute(string name, string value, bool encode)

{

// 如果目前輸出的屬性為form标記的action屬性，則将其值替換為重寫後的虛假URL

if (string.Compare(name, "action", true) == 0)

{

value = HttpContext.Current.Request.RawUrl;

}

base.WriteAttribute(name, value, encode);

}

}

public class FormFixerHtmlTextWriter : System.Web.UI.HtmlTextWriter

{

public FormFixerHtmlTextWriter(TextWriter writer)

: base(writer)

{

}

public override void WriteAttribute(string name, string value, bool encode)

{

if (string.Compare(name, "action", true) == 0)

{

value = HttpContext.Current.Request.RawUrl;

}

base.WriteAttribute(name, value, encode);

}

}

}