Response.Redirect 打开新窗口的两种方法

最新推荐文章于 2012-11-23 16:23:04 发布

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最新推荐文章于 2012-11-23 16:23:04 发布

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文章标签： xhtml c#

本文介绍了在ASP.NET中利用Response.Redirect方法结合不同技术手段实现打开新窗口或新标签页的具体实现方式，包括服务器端设置target属性及客户端脚本设置target属性的方法。

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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：

<% @PageLanguage = " C# " AutoEventWireup = " true " %>

<! DOCTYPEhtmlPUBLIC " -//W3C//DTDXHTML1.0Transitional//EN "
" http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd " >

< scriptrunat = " server " >

protected void Page_Load( object sender,EventArgse)
{
form1.Target = " _blank " ;
}

protected void Button1_Click( object sender,EventArgse)
{
Response.Redirect( " http://dotnet.aspx.cc " );
}
</ script >

< htmlxmlns = " http://www.w3.org/1999/xhtml " >
< headid = " Head1 " runat = " server " >
< title ></ title >
</ head >
< bodyid = " b " runat = " server " >
< formid = " form1 " runat = " server " >
< asp:ButtonID = " 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：

<% @PageLanguage = " C# " AutoEventWireup = " true " %>

<! DOCTYPEhtmlPUBLIC " -//W3C//DTDXHTML1.0Transitional//EN "
" http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd " >

< scriptrunat = " server " >

protected void Page_Load( object sender,EventArgse)
{
Button1.Attributes.Add( " onclick " , " this.form.target='_newName' " );
}

protected void Button1_Click( object sender,EventArgse)
{
Response.Redirect( " http://dotnet.aspx.cc " );
}
</ script >

< htmlxmlns = " http://www.w3.org/1999/xhtml " >
< headid = " Head1 " runat = " server " >
< title ></ title >
</ head >
< bodyid = " b " runat = " server " >
< formid = " form1 " runat = " server " >
< asp:ButtonID = " 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：

<% @PageLanguage = " C# " AutoEventWireup = " true " %>

<! DOCTYPEhtmlPUBLIC " -//W3C//DTDXHTML1.0Transitional//EN "
" http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd " >

< scriptrunat = " server " >

protected void Page_Load( object sender,EventArgse)
{
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,EventArgse)
{
Response.Redirect( " http://dotnet.aspx.cc " );
}
</ script >

< htmlxmlns = " http://www.w3.org/1999/xhtml " >
< headid = " Head1 " runat = " server " >
< title ></ title >
</ head >
< bodyid = " b " runat = " server " >
< formid = " form1 " runat = " server " >
< asp:ButtonID = " 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