private void btnSave_Click(object sender, EventArgs e)
        {
            clsAdmin temp = new clsAdmin();

            temp.UserID      = txtID.Text.Trim();
            temp.Name        = txtName.Text.Trim();
            temp.PhoneNumber = txtPhone.Text.Trim();

            if (Addmode)
            {
                if (temp.Add_New_Admin(temp))
                {
                    MessageBox.Show("New Administrator " + temp.Name + " is successfully added", "New Admin");
                }
                else
                {
                    MessageBox.Show("Administrator " + temp.Name + " is not added.", "Try Again");
                }
                admin.Refresh_Database();
            }

            else
            {
                temp.RefAdmin = (int)gridAll.Rows[gridAll.CurrentRow.Index].Cells[0].Value;
                if (temp.Edit_Admin(temp))
                {
                    MessageBox.Show("Administrator " + temp.Name + " is successfully modified", "Admin Modified");
                }
                else
                {
                    MessageBox.Show("Administrator " + temp.Name + " is not edited.", "Try Again");
                }
            }
            gridAll.DataSource = admin.Search_All_Admins();
            ButtonControl(true, true, false, false, true, false);
        }