DataGridViewEditingControlShowingEventArgs.Control 属性

定义

命名空间:

System.Windows.Forms

程序集:

System.Windows.Forms.dll

Source:

DataGridViewEditingControlShowingEventArgs.cs

向用户显示的用于编辑选定单元格的值的控件。

C#

public System.Windows.Forms.Control Control { get; }

属性值

Control

一个 Control，它显示一个区域供用户输入或更改选定单元格的值。

示例

下面的代码示例演示了此属性的用法。 在此示例中， DataGridView.EditingControlShowing 事件处理程序为 DataGridViewComboBoxEditingControl 事件添加处理程序。 将编辑控件强制转换为 以 ComboBox 处理 ComboBox.SelectedIndexChanged 事件。

C#

private DataGridView dataGridView1 = new DataGridView();

private void AddColorColumn()
{
    DataGridViewComboBoxColumn comboBoxColumn =
        new DataGridViewComboBoxColumn();
    comboBoxColumn.Items.AddRange(
        Color.Red, Color.Yellow, Color.Green, Color.Blue);
    comboBoxColumn.ValueType = typeof(Color);
    dataGridView1.Columns.Add(comboBoxColumn);
    dataGridView1.EditingControlShowing +=
        new DataGridViewEditingControlShowingEventHandler(
        dataGridView1_EditingControlShowing);
}

private void dataGridView1_EditingControlShowing(object sender,
    DataGridViewEditingControlShowingEventArgs e)
{
    ComboBox combo = e.Control as ComboBox;
    if (combo != null)
    {
        // Remove an existing event-handler, if present, to avoid 
        // adding multiple handlers when the editing control is reused.
        combo.SelectedIndexChanged -=
            new EventHandler(ComboBox_SelectedIndexChanged);

        // Add the event handler. 
        combo.SelectedIndexChanged +=
            new EventHandler(ComboBox_SelectedIndexChanged);
    }
}

private void ComboBox_SelectedIndexChanged(object sender, EventArgs e)
{
    ((ComboBox)sender).BackColor = (Color)((ComboBox)sender).SelectedItem;
}

注解

若要自定义控件的显示特征，请设置 属性返回 CellStyle 的 对象的属性，而不是设置 属性返回的控件的属性 Control 。

适用于

另请参阅

• DataGridView
• DataGridViewTextBoxEditingControl
• DataGridViewComboBoxEditingControl
• IDataGridViewEditingControl
• CellStyle