除了ScarletGarden的评论，你还需要考虑搜索引擎和你的重定向的影响。这个页面永久移动了吗?暂时的?这很重要。

看:响应。重定向vs。“301永久移动”:

We've all used Response.Redirect at one time or another. It's the quick and easy way to get visitors pointed in the right direction if they somehow end up in the wrong place. But did you know that Response.Redirect sends an HTTP response status code of "302 Found" when you might really want to send "301 Moved Permanently"? The distinction seems small, but in certain cases it can actually make a big difference. For example, if you use a "301 Moved Permanently" response code, most search engines will remove the outdated link from their index and replace it with the new one. If you use "302 Found", they'll continue returning to the old page...

响应。重定向只是向浏览器发送一条消息(HTTP 302)。

服务器。传输在浏览器一无所知的情况下发生，浏览器请求一个页面，但服务器返回另一个页面的内容。

更多关于Transfer()的细节，它实际上是Server.Execute() + Response.End()，它的源代码如下(来自Mono/.net 4.0):

public void Transfer (string path, bool preserveForm)
{
    this.Execute (path, null, preserveForm, true);
    this.context.Response.End ();
}

对于Execute()，它要运行的是给定路径的处理程序，参见

ASP.NET does not verify that the current user is authorized to view the resource delivered by the Execute method. Although the ASP.NET authorization and authentication logic runs before the original resource handler is called, ASP.NET directly calls the handler indicated by the Execute method and does not rerun authentication and authorization logic for the new resource. If your application's security policy requires clients to have appropriate authorization to access the resource, the application should force reauthorization or provide a custom access-control mechanism. You can force reauthorization by using the Redirect method instead of the Execute method. Redirect performs a client-side redirect in which the browser requests the new resource. Because this redirect is a new request entering the system, it is subjected to all the authentication and authorization logic of both Internet Information Services (IIS) and ASP.NET security policy. -from MSDN

简而言之:回应。重定向只是告诉浏览器访问另一个页面。服务器。Transfer有助于减少服务器请求，保持URL相同，并且通过一些错误处理，允许您传输查询字符串和表单变量。

我发现并同意以下观点:

Server.Transfer is similar in that it sends the user to another page with a statement such as Server.Transfer("WebForm2.aspx"). However, the statement has a number of distinct advantages and disadvantages. Firstly, transferring to another page using Server.Transfer conserves server resources. Instead of telling the browser to redirect, it simply changes the "focus" on the Web server and transfers the request. This means you don't get quite as many HTTP requests coming through, which therefore eases the pressure on your Web server and makes your applications run faster. But watch out: because the "transfer" process can work on only those sites running on the server; you can't use Server.Transfer to send the user to an external site. Only Response.Redirect can do that. Secondly, Server.Transfer maintains the original URL in the browser. This can really help streamline data entry techniques, although it may make for confusion when debugging. That's not all: The Server.Transfer method also has a second parameter—"preserveForm". If you set this to True, using a statement such as Server.Transfer("WebForm2.aspx", True), the existing query string and any form variables will still be available to the page you are transferring to. For example, if your WebForm1.aspx has a TextBox control called TextBox1 and you transferred to WebForm2.aspx with the preserveForm parameter set to True, you'd be able to retrieve the value of the original page TextBox control by referencing Request.Form("TextBox1").

响应。重定向的代价更大，因为它向服务器添加了额外的行程，以确定要去哪里。

服务器。传输是更有效的，但它可能会误导用户，因为Url没有物理改变。

根据我的经验，性能上的差异还没有大到可以使用后一种方法

响应。重定向:告诉浏览器可以在新的位置找到所请求的页面。然后，浏览器向新页面发起另一个请求，在浏览器中加载其内容。这将导致浏览器产生两个请求。

服务器。转移:它将执行从服务器上的第一个页面转移到第二个页面。就浏览器客户端而言，它只发出一个请求，初始页面就是响应内容的页面。 这种方法的好处是减少了一次从客户机浏览器到服务器的往返。此外，任何提交的表单变量和查询字符串参数也可用于第二个页面。