private void Search_btn_Click(object sender, EventArgs e)
        {
            Validation_Class v = new Validation_Class();

            if (v.NationalID(NID_Search_Texbox.Text))
            {
                DataTable result = controller.Search_Employee(NID_Search_Texbox.Text);
                if (result == null)
                {
                    NotFound();
                }
                else
                {
                    Found();
                    EName_Update_Texbox.Text   = result.Rows[0][1].ToString();
                    BD_DatePicker.Value        = Convert.ToDateTime(result.Rows[0][2].ToString());
                    EEmail_Update_Texbox.Text  = result.Rows[0][3].ToString();
                    EAdress_Update_Texbox.Text = result.Rows[0][4].ToString();
                    EPass_Update_Texbox.Text   = v.Decrypt_PassWord(result.Rows[0][5].ToString());
                    ESalary_Update_Texbox.Text = result.Rows[0][6].ToString();
                    EID_Update_Texbox.Text     = result.Rows[0][7].ToString();
                    Type_CBox.Text             = result.Rows[0][10].ToString();
                }
            }
        }