public static void ClearControl(Control control) { if (control is TextBox) { control.Text = string.Empty; } else if (control is ComboBox) { (control as ComboBox).SelectedIndex = -1; } else if (control is DateTimePicker) { DatePicker.ClearDatePicker(control as DateTimePicker); } else if (control is DataGridView) { (control as DataGridView).Rows.Clear(); } }