فرم انتظار

[master 1]

فکر کنم اینجوری باید باشه

LoadingForm.Waiting wt2 = new LoadingForm.Waiting();

        private void button1_Click(object sender, EventArgs e)

        {



            wt2.TextWaiting = "صبر کنید";

            wt2.CreateInForm(typeof(Form1), this, false, false, "DoWork2");

        







            

             }



        public void DoWork2()

        {

            //Simulate Heavy Processing

            System.Threading.Thread.Sleep(4000);



//title

            string z2, c;

            string url1 = textBox1.Text;

            HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url1);

            HttpWebResponse response = (HttpWebResponse)request.GetResponse();

            StreamReader sr = new StreamReader(response.GetResponseStream());

            b = sr.ReadToEnd();

            richTextBox1.Text = z2



        }

    }

ولی تو این قسمت این اروور رو داده