查找另一个页面的控件

本文介绍了查找另一个页面的控件的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

如何在当前页面后面的代码中找到另一个aspx中存在的单选按钮控件?

How can i find a radiobutton control that exists in another aspx, in my current page''s code behind?

推荐答案

1. set the PostBackUrl property of the Button to the New Page

<asp:button id="Button1" runat="server" text="test now " postbackurl="~/Default5.aspx" xmlns:asp="#unknown" />

or you can use

<asp:Button ID="Button1" runat="server" Text="test now "

        onclick="Button1_Click2"   />

code behind

protected void Button1_Click2(object sender, EventArgs e)
{
          Server.Transfer("Default5.aspx");

}

Note :         Response.Redirect("Default5.aspx"); will raise
Error Object reference not set to an instance of an object.

in the the other page

protected void Page_Load(object sender, EventArgs e)
   {
// this is page Default5
       if (!IsPostBack)
       {
           Button btn = ((Button)PreviousPage.FindControl("Button1"));
           Button1.Text = btn.Text;
       }

   }

RadioButton rb = (RadioButton)PreviousPage.FindControl("RadioBtn1");

如果有帮助，请投票.

Please vote if this helped you then.

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