/// <summary>
/// 当焦点离开时，需要将新输入的值加入到组合框的 Items 列表中
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
void combo_Leave(object sender, EventArgs e)
{
ComboBox combo = sender as ComboBox;
combo.Leave -= new EventHandler(combo_Leave);
if (CurrentCell != null && CurrentCell.OwningColumn is DataGridViewComboBoxColumnEx)
{
DataGridViewComboBoxColumnEx col = CurrentCell.OwningColumn as DataGridViewComboBoxColumnEx;
//一定要将新输入的值加入到组合框的值列表中
//否则下一步给单元格赋值的时候会报错（因为值不在组合框的值列表中）
col.Items.Add(combo.Text);
CurrentCell.Value = combo.Text;
}
}
protected override void OnEditingControlShowing(DataGridViewEditingControlShowingEventArgs e)
{
if (CurrentCell != null && CurrentCell.OwningColumn is DataGridViewComboBoxColumnEx)
{
DataGridViewComboBoxColumnEx col = CurrentCell.OwningColumn as DataGridViewComboBoxColumnEx;
//修改组合框的样式
if (col.DropDownStyle != ComboBoxStyle.DropDownList)
{
ComboBox combo = e.Control as ComboBox;
combo.DropDownStyle = col.DropDownStyle;
combo.Leave += new EventHandler(combo_Leave);
}
}
base.OnEditingControlShowing(e);
}