How to show the message and redirect to other page in ASP.NET

The below code snippet is used to show the message and redirect to other page:

 ScriptManager.RegisterStartupScript(this, this.GetType(), "message", "alert('Access Denied. Please contact Administrator for access to this section.');location.href = 'login.aspx';", true);

The below code snippet is used to show the message and redirect to other page with parameters:

ScriptManager.RegisterStartupScript(this, this.GetType(), "message", "alert('Data updated successfully. You will now redirected to search page.');location.href = 'somepage.aspx?name=" + name + "&address=" + address + "&state=" + state + "';", true);

The below code snippet is used to show the message and redirect to other page with parameters based on user confirm:

ScriptManager.RegisterStartupScript(this, this.GetType(), "redirect", "var r = confirm('Data updated successfully. You will now redirected to search page.'); if (r == true) var str= 'somepage.aspx?name=" + name + "&address=" + address + "&state=" + state + "'; location.href = str ;", true);