To close a dialog box from code behind you can use

To close a dialog box from code behind you can use

this.Page.Response.Clear();

        if (succes)
        {
            this.Page.Response.Write("<script type=\"text/javascript\">window.frameElement.commonModalDialogClose(1, 'saved');</script>");
        }
        else
        {
            this.Page.Response.Write("<script type=\"text/javascript\">window.frameElement.commonModalDialogClose(0, 'cancelled');</script>");
        }

        this.Page.Response.End();