Question

Here i want to set theme for a master page but i don’t know how to do it so please tell me some solution .
all the i want to do from code behind.
thanks to all.

Answer 1

How to: Apply ASP.NET Themes Programmatically

protected void Page_PreInit(object sender, EventArgs e)
{
    switch (Request.QueryString["theme"])
    {
        case "Blue":
            Page.Theme = "BlueTheme";
            break;
        case "Pink":
            Page.Theme = "PinkTheme";
            break;
    }
}