Response.Redirect to new window
I just found the answer and it works :)
You need to add the following to your server side link/button:
OnClientClick="aspnetForm.target ='_blank';"My entire button code looks something like:
<asp:LinkButton ID="myButton" runat="server" Text="Click Me!" OnClick="myButton_Click" OnClientClick="aspnetForm.target ='_blank';"/>In the server side OnClick I do a Response.Redirect("MyPage.aspx"); and the page is opened in a new window.
The other part you need to add is to fix the form's target otherwise every link will open in a new window. To do so add the following in the header of your POPUP window.
<script type="text/javascript"> function fixform() { if (opener.document.getElementById("aspnetForm").target != "_blank") return; opener.document.getElementById("aspnetForm").target = ""; opener.document.getElementById("aspnetForm").action = opener.location.href; }</script>and
<body onload="fixform()">
You can use this as extension method
public static class ResponseHelper{ 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 outside Page context."); } 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); } }}With this you get nice override on the actual Response object
Response.Redirect(redirectURL, "_blank", "menubar=0,scrollbars=1,width=780,height=900,top=10");
Contruct your url via click event handler:
string strUrl = "/some/url/path" + myvar;Then:
ScriptManager.RegisterStartupScript(Page, Page.GetType(), "popup", "window.open('" + strUrl + "','_blank')", true);