Response.rederect is on this page by default, so in addition to using window.open in JS or adding target attributes to a tag, it doesn't seem to be able to open a new page in the background, but by setting the target property of the form you can also let RESPONSE.R The URL that Ederect points to opens in a new window. Here are three ways to implement this.
1. Assign the target attribute to the form, and all response.rederect in this page will open in a new window. The code is as follows:
Copy Code code as follows:
protected void Page_Load (object sender, EventArgs e)
{
Form1. Target = "_blank";
}
Or
<form id= "Form2" runat= "server" target= "_blank" >
2. Use a script to specify the target of the form for a control, the code is as follows:
HTML code:
Copy Code code as follows:
<%@ Page language= "C #" autoeventwireup= "true" codebehind= "Default.aspx.cs" inherits= "Responseredirectdemo._" Default "%>
<! DOCTYPE HTML PUBLIC "-//W3C//DTD XHTML 1.0 transitional//en" "Http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd ">
<title>ResponseRedirectDemo</title>
<body>
<form id= "Form2" runat= "server" target= "_blank" >
<div>
<asp:button id= "Button1" runat= "Server" onclick= "Button1_Click"
text= "Opennewwindow"/>
<asp:button id= "Button2" runat= "Server" onclick= "button2_click"
text= "Openoldwindow"/>
</div>
</form>
</body>
C # code:
[Code]
Namespace Responseredirectdemo
{
public partial class _default:system.web.ui.page
{
protected void Page_Load (object sender, EventArgs e)
{
BUTTON1.ATTRIBUTES.ADD ("onclick", "this.form.target= ' _blank '");
BUTTON2.ATTRIBUTES.ADD ("onclick", "this.form.target=");
}
protected void Button1_Click (object sender, EventArgs e)
{
Response.Redirect ("http://oec2003.cnblogs.com");
}
protected void button2_click (object sender, EventArgs e)
{
Response.Redirect ("http://oec2003.cnblogs.com");
}
}
}
Click Button1 in the above code to open in a new window, click Button2 on this page.
3. In addition to setting the target attribute of the form, open the page in a new window only with open, you can write a common method to implement, as follows:
Copy Code code as follows:
public class Redirecthelper
{
public static void Redirect (string URL,
String target, String windowfeatures)
{
HttpContext context = HttpContext.Current;
if (String.IsNullOrEmpty (target) | |
Target. Equals ("_self", StringComparison.OrdinalIgnoreCase) &&
String.IsNullOrEmpty (Windowfeatures))
{
Context. Response.Redirect (URL);
}
Else
{
Page page = (page) context. Handler;
if (page = = null)
{
throw new
InvalidOperationException ("Cannot redirect to New window.");
}
url = page. Resolveclienturl (URL);
string script;
if (! String.IsNullOrEmpty (Windowfeatures))
{
Script = @ "window.open (" "{0}" "," "{1}", "" {2} ");";
}
Else
{
Script = @ "window.open (" "{0}" "," "{1}"); ";
}
Script = String.Format (script, URL, target, windowfeatures);
Page. Clientscript.registerstartupscript (page. GetType (),
"Redirect", script, True);
} } }
This allows you to use Redirecthelper.redirect ("oec2003.aspx", "_blank", "") in your program, and the third parameter is some of the properties of the open window. But this seems not very convenient, in the. net3.5 provides the characteristics of the extension method, where you can also borrow, the above static method is implemented as a Response.Redirect overload. The specific code is as follows:
Copy Code code as follows:
public static Class Redirecthelper
{
public static void Redirect (this httpresponse response,
String URL, string target, String windowfeatures)
{
if (String.IsNullOrEmpty (target) | |
Target. Equals ("_self", StringComparison.OrdinalIgnoreCase) &&
String.IsNullOrEmpty (Windowfeatures))
{
Response. Redirect (URL);
}
Else
{
Page page = (page) HttpContext.Current.Handler; if (page = = null)
{
throw new
InvalidOperationException ("Cannot redirect to New window.");
}
url = page. Resolveclienturl (URL);
string script;
if (! String.IsNullOrEmpty (Windowfeatures))
{
Script = @ "window.open (" "{0}" "," "{1}", "" {2} ");";
}
Else
{
Script = @ "window.open (" "{0}" "," "{1}"); ";
}
Script = String.Format (script, URL, target, windowfeatures);
Scriptmanager.registerstartupscript (page,
typeof (Page), "Redirect", script, True);
}
}
}
When you add this class to your project, entering Response.Redirect in your program will find that the method has three overloads, so it is convenient to combine target from the previous form.
Other than that:
Respose.write ("<script language= ' JavaScript ' >window.open (' + URL + ');</script>"); (Open simple window):
Respose.write ("<script language= ' JavaScript ') >window.open (' + URL +" ', ', ', ' Resizable=1,scrollbars=0,status=1, Menubar=no,toolbar=no,location=no, Menu=no ');</script> ");
1. Response.Redirect ("xxx.aspx", true)--directly to the new page, the original window is replaced;
2. Response.Write ("<script>window.open" (' xxx.aspx ', ' _blank ') </script> ")--the original window is reserved, another new page is added;
3. Response.Write ("<script>window.location= ' xxx.aspx ' </script>")--Opens the new page, replaces the original window;
4. Server.Transfer ("xxx.aspx")--open a new page;
5. Response.Write ("<script>window.showmodelessdialog (' xxx.aspx ') </script>")--the original window is reserved to open a new window in the form of a dialog box;
6. Response.Write ("<script>window.showmodeldialog (' xxx.aspx ') </script>")--dialog form opens a new window, the original window is replaced;
