普通情况下，Response.Redirect 方法是在server端进行转向，因此，除非使用 Response.Write("<script>window.location='http://dotnet.aspx.cc';</script>") 方法外，是不能在新窗体打开所指定的 URL 地址的。可是，假设细致分析一下，假设设置 form 元素的 target 属性，还是有办法打开新窗体的。以下就是能够採用的两种方法。
方法一：在server端设置 target 属性，这种方法也很适用于client不支持脚本的情况。代码例如以下：
<% @ Page Language = " C# " AutoEventWireup = " true " %> <! DOCTYPE html PUBLIC " -//W3C//DTD XHTML 1.0 Transitional//EN " " http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd " > < script runat = " server " > protected void Page_Load( object sender, EventArgs e) { form1.Target = " _blank " ; } protected void Button1_Click( object sender, EventArgs e) { Response.Redirect( " http://dotnet.aspx.cc " ); } </ script > < html xmlns = " http://www.w3.org/1999/xhtml " > < head id = " Head1 " runat = " server " > < title ></ title > </ head > < body id = " b " runat = " server " > < form id = " form1 " runat = " server " > < asp:Button ID = " Button1 " runat = " server " OnClick = " Button1_Click " Text = " 打开新窗体或者新 Tab " /> </ form > </ body > </ html >
办法二：採用client脚本的方法设置 target 属性。代码例如以下：
<% @ Page Language = " C# " AutoEventWireup = " true " %> <! DOCTYPE html PUBLIC " -//W3C//DTD XHTML 1.0 Transitional//EN " " http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd " > < script runat = " server " > protected void Page_Load( object sender, EventArgs e) { Button1.Attributes.Add( " onclick " , " this.form.target='_newName' " ); } protected void Button1_Click( object sender, EventArgs e) { Response.Redirect( " http://dotnet.aspx.cc " ); } </ script > < html xmlns = " http://www.w3.org/1999/xhtml " > < head id = " Head1 " runat = " server " > < title ></ title > </ head > < body id = " b " runat = " server " > < form id = " form1 " runat = " server " > < asp:Button ID = " Button1 " runat = " server " OnClick = " Button1_Click " Text = " 打开新窗体或者新 Tab " /> </ form > </ body > </ html >
上面两种方法中的 target 属性能够採用不论什么合法的名称，但要注意，假设同样名称的窗体已经打开，则新窗体会在已经存在名称的窗体里打开。
更新：假设须要设置弹出窗体的宽度和高度，能够改动为以下的方法：
<% @ Page Language = " C# " AutoEventWireup = " true " %> <! DOCTYPE html PUBLIC " -//W3C//DTD XHTML 1.0 Transitional//EN " " http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd " > < script runat = " server " > protected void Page_Load( object sender, EventArgs e) { string WindowName = " win " + System.DateTime.Now.Ticks.ToString(); Page.RegisterOnSubmitStatement( " js " , " window.open('',' " + WindowName + " ','width=600,height=200') " ); form1.Target = WindowName; } protected void Button1_Click( object sender, EventArgs e) { Response.Redirect( " http://dotnet.aspx.cc " ); } </ script > < html xmlns = " http://www.w3.org/1999/xhtml " > < head id = " Head1 " runat = " server " > < title ></ title > </ head > < body id = " b " runat = " server " > < form id = " form1 " runat = " server " > < asp:Button ID = " Button1 " runat = " server " OnClick = " Button1_Click " Text = " 打开新窗体或者新 Tab " /> </ form > </ body > </ html >
第二种弹出的方法能够參见老外的文章：