Url重写之action改变的问题

2009-12-14 18:53| 发布者: admin| 查看: 28| 评论: 0|原作者: 情殇

▲namespaceActionlessF......

namespace ActionlessForm {
public class Form : System.Web.UI.HtmlControls.HtmlForm
{
protected override void RenderAttributes(HtmlTextWriter writer)
{
writer.WriteAttribute("name", this.Name);
base.Attributes.Remove("name");
writer.WriteAttribute("method", this.Method);
base.Attributes.Remove("method");
this.Attributes.Render(writer);
base.Attributes.Remove("action");
if (base.ID != null)
writer.WriteAttribute("id", base.ClientID);
}
}
}
<%@ Register TagPrefix="skm" Namespace="ActionlessForm"
Assembly="ActionlessForm" %>
然后，将
---或者
using System;
using System.IO;
using System.Web;
using System.Web.UI;
namespace URl
{
/**////

/// 页面基类
///

public class OLPage : Page
{
public OLPage()
{
}
/**////

/// 重写默认的HtmlTextWriter方法，修改form标记中的value属性，使其值为重写的URL而不是真实URL。
///

///
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);
}
}
internal class FormFixerHtml32TextWriter : System.Web.UI.Html32TextWriter
{
private string _url; // 假的URL
internal FormFixerHtml32TextWriter(TextWriter writer):base(writer)
{
_url = HttpContext.Current.Request.RawUrl;
}
public override void WriteAttribute(string name, string value, bool encode)
{
// 如果当前输出的属性为form标记的action属性，则将其值替换为重写后的虚假URL
if (_url != null && string.Compare(name, "action", true) == 0)
{
value = _url;
}
base.WriteAttribute(name, value, encode);
}
}
internal class FormFixerHtmlTextWriter : System.Web.UI.HtmlTextWriter
{
private string _url;
internal FormFixerHtmlTextWriter(TextWriter writer):base(writer)
{
_url = HttpContext.Current.Request.RawUrl;
}
public override void WriteAttribute(string name, string value, bool encode)
{
if (_url != null && string.Compare(name, "action", true) == 0)
{
value = _url;
}
base.WriteAttribute(name, value, encode);
}
}
}

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Url重写之action改变的问题

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