public void refreshing(DataGridView datagridview) { NameTextBox.Text = ""; RolecomboBox.Text = ""; PasswordTextBox.Text = ""; AddressTextBox.Text = ""; MobileTextBox.Text = ""; TeamIdtextBox.Text = ""; UsernametextBox.Text = ""; dt = opr.viewSupervisor(info); SupervisorDataView.DataSource = dt; }