Response.Redirect 打开新窗口的两种方法

比眉伴天荒 2021-12-17 05:31 269阅读 0赞

一般情况下，Response.Redirect 方法是在服务器端进行转向，因此，除非使用 Response.Write("<script>window.location='http://dotnet.aspx.cc';</script>") 方法外，是不能在新窗口打开所指定的  URL 地址的。但是，如果仔细分析一下，如果设置 form 元素的 target 属性，还是有办法打开新窗口的。下面就是可以采用的两种方法。

方法一：在服务器端设置 target 属性，这个方法也非常适用于客户端不支持脚本的情况。代码如下：

<% @ 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 = " 打开新窗口或者新 Tab  "   />   
 </ form >   
 </ body >   
 </ html >

办法二：采用客户端脚本的方法设置 target 属性。代码如下：

<% @ 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 = " 打开新窗口或者新 Tab  "   />   
 </ form >   
 </ body >   
 </ html >

上面两种方法中的 target 属性可以采用任何合法的名称，但要注意，如果相同名称的窗口已经打开，则新窗口会在已经存在名称的窗口里打开。

**更新：如果需要设置弹出窗口的宽度和高度，可以修改为下面的方法：**

<% @ 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 = " 打开新窗口或者新 Tab  "   />   
 </ form >   
 </ body >   
 </ html >

另外一种弹出的方法可以参见老外的文章：  
  
[http://weblogs.asp.net/infinitiesloop/archive/2007/09/25/response-redirect-into-a-new-window-with-extension-methods.aspx][http_weblogs.asp.net_infinitiesloop_archive_2007_09_25_response-redirect-into-a-new-window-with-extension-methods.aspx]

转载于:https://www.cnblogs.com/hdjjun/archive/2008/06/17/1223845.html

[http_weblogs.asp.net_infinitiesloop_archive_2007_09_25_response-redirect-into-a-new-window-with-extension-methods.aspx]: http://weblogs.asp.net/infinitiesloop/archive/2007/09/25/response-redirect-into-a-new-window-with-extension-methods.aspx