UrlReWriter 实现方法 续_解决FROM action 跳转问题

FormRewriterControlAdapter.cs

public class FormRewriterControlAdapter:System.Web.UI.Adapters.ControlAdapter
{
    public FormRewriterControlAdapter()
    {
        //
        //TODO: 在此处添加构造函数逻辑
        //
    }

    protected override void Render(HtmlTextWriter writer)
    {
        base.Render(new RewriteFormHtmlTextWriter(writer));
    }
}

public class RewriteFormHtmlTextWriter:HtmlTextWriter
{
    /// <summary>
    /// 调用基类的构造方法
    /// </summary>
    /// <param name="writer"></param>
    public RewriteFormHtmlTextWriter(HtmlTextWriter writer):base(writer)
    {
        this.InnerWriter = writer.InnerWriter;
    }

    public RewriteFormHtmlTextWriter(System.IO.TextWriter writer):base(writer)
    {
        
        base.InnerWriter = writer;
    }

    public override void WriteAttribute(string name, string value, bool fEncode)
    {
        if (name == "action")
        {
            HttpContext context = HttpContext.Current;

            if (context.Items["ActionAlreadyWritten"] == null)
            {
                value = context.Request.RawUrl;

                context.Items["ActionAlreadyWritten"] = true;
            }
        }
        base.WriteAttribute(name, value, fEncode);
    }
}

然后在 App_Browsers 文件夹添加  BrowserFile.browser 浏览器文件
在里面添加以下一段代码

  <browser refID="Default">
    <controlAdapters>
      <adapter controlType="System.Web.UI.HtmlControls.HtmlForm"
               adapterType="FormRewriterControlAdapter" />
    </controlAdapters>
  </browser>

这里利用新的ASP.NET 2.0控件适配器扩展架构来定制控件的输出，用你提供的值来覆盖action属性的值
不需要自己重写页面代码

II原来的解决方法

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);
     }
  }
}

页面中的 Form 继承该Form 就可以实现相同的目的了