private void editSelectedData()
        {
            try
            {
                if (clsClose_Other_Forms.IMS_IsFormOpen("frmAddExamTime") == false)
                {
                    // MessageBox.Show(dgvCart.Rows[dgvCart.CurrentRow.Index].Cells[4].Value.ToString());

                    frmAddExamTime AddExamTime = new frmAddExamTime(MainScreen);
                    AddExamTime.Edit_AddDatatoCombo(
                        dgvCart.Rows[dgvCart.CurrentRow.Index].Cells[0].Value.ToString(),
                        dgvCart.Rows[dgvCart.CurrentRow.Index].Cells[9].Value.ToString(),
                        dgvCart.Rows[dgvCart.CurrentRow.Index].Cells[8].Value.ToString(),
                        dgvCart.Rows[dgvCart.CurrentRow.Index].Cells[4].Value.ToString(),
                        dgvCart.Rows[dgvCart.CurrentRow.Index].Cells[5].Value.ToString(),
                        dgvCart.Rows[dgvCart.CurrentRow.Index].Cells[6].Value.ToString(),
                        clsExamDetails.returnExamPartIndex(dgvCart.Rows[dgvCart.CurrentRow.Index].Cells[2].Value.ToString()),
                        clsExamDetails.returnExamStatusIndex(dgvCart.Rows[dgvCart.CurrentRow.Index].Cells[7].Value.ToString()));

                    AddExamTime.ShowDialog();
                    AddExamTime.BringToFront();

                    Add_Subjects_to_Combobox("select SubjectId, SubjectName from tblSubjects where SubjectStatus='True';");
                    Add_Details_to_Datagridview(DgvQuery);
                }
            }
            catch (Exception ex)
            { MessageBox.Show("1" + ex.Message); }
        }
        private void button3_Click(object sender, EventArgs e)
        {
            if (clsClose_Other_Forms.IMS_IsFormOpen("frmAddExamTime") == false)
            {
                frmAddExamTime AddExamTime = new frmAddExamTime(MainScreen);
                AddExamTime.ShowDialog();
                AddExamTime.BringToFront();

                Add_Subjects_to_Combobox("select SubjectId, SubjectName from tblSubjects where SubjectStatus='True';");
                Add_Details_to_Datagridview(DgvQuery);
            }
        }