ASP.Net Error: Showing a modal dialog box or form when the application is not running in UserInteractive mode is not a valid operation

Hi

i want to take screenshot on button click. Code is working in local but when hosted it doesnt work. It gives JIT error

An unhandled exception of type 'System.InvalidOperationException' occurred in System.Windows.Forms.dll

Additional information: Showing a modal dialog box or form when the application is not running in UserInteractive mode is not a valid operation. Specify the ServiceNotification or DefaultDesktopOnly style to display a notification from a service application

Please Help.

        protected void LinkButton4_Click(object sender, EventArgs e)
        {
            var t = new Thread((ThreadStart)(() =>
            {
                using (System.Windows.Forms.SaveFileDialog dlgSave = new System.Windows.Forms.SaveFileDialog())
                {
                    //dlgSave.Title = "Save Image";
                    dlgSave.Filter = "Bitmap Images (*.bmp)|*.bmp|All Files (*.*)|*.*";
                    if (dlgSave.ShowDialog() == System.Windows.Forms.DialogResult.OK)
                    {
                        //If user clicked OK, then save the image into the specified file
                        using (System.Drawing.Bitmap bmp = new System.Drawing.Bitmap(System.Windows.Forms.Screen.PrimaryScreen.Bounds.Width, System.Windows.Forms.Screen.PrimaryScreen.Bounds.Height))
                        {
                            Thread.Sleep(2500);
                            //picturebox1.DrawToBitmap(bmp, new Rectangle(0, 0, bmp.Width, bmp.Height));
                            System.Drawing.Graphics graphics = System.Drawing.Graphics.FromImage(bmp as System.Drawing.Image);
                            graphics.CopyFromScreen(0, 0, 0, 0, bmp.Size);
                            bmp.Save(dlgSave.FileName);
                        }
                    }
                }
            }));

            t.SetApartmentState(ApartmentState.STA);
            t.Start();
            t.Join();
        }