DrawListViewSubItemEventArgs.DrawDefault 属性

定义

获取或设置一个值,该值指示是否应由操作系统绘制而不是由所有者描述 ListViewItem.ListViewSubItem

public:
 property bool DrawDefault { bool get(); void set(bool value); };
public bool DrawDefault { get; set; }
member this.DrawDefault : bool with get, set
Public Property DrawDefault As Boolean

属性值

如果该子项应由操作系统绘制,则为 true;否则为 false。 默认值为 false

示例

下面的代码示例演示了此成员的用法。 在此示例中,事件处理程序报告事件的发生情况 ListView.DrawSubItem 。 此报表可帮助你了解事件发生的时间,并可以帮助你进行调试。

若要运行示例代码,请将其粘贴到包含名为 ListView1的 类型的ListView实例的项目中。 然后,确保事件处理程序与 ListView.DrawSubItem 事件相关联。

private void ListView1_DrawSubItem(Object sender, DrawListViewSubItemEventArgs e) {

System.Text.StringBuilder messageBoxCS = new System.Text.StringBuilder();
messageBoxCS.AppendFormat("{0} = {1}", "DrawDefault", e.DrawDefault );
messageBoxCS.AppendLine();
messageBoxCS.AppendFormat("{0} = {1}", "Graphics", e.Graphics );
messageBoxCS.AppendLine();
messageBoxCS.AppendFormat("{0} = {1}", "Bounds", e.Bounds );
messageBoxCS.AppendLine();
messageBoxCS.AppendFormat("{0} = {1}", "Item", e.Item );
messageBoxCS.AppendLine();
messageBoxCS.AppendFormat("{0} = {1}", "SubItem", e.SubItem );
messageBoxCS.AppendLine();
messageBoxCS.AppendFormat("{0} = {1}", "ItemIndex", e.ItemIndex );
messageBoxCS.AppendLine();
messageBoxCS.AppendFormat("{0} = {1}", "ColumnIndex", e.ColumnIndex );
messageBoxCS.AppendLine();
messageBoxCS.AppendFormat("{0} = {1}", "Header", e.Header );
messageBoxCS.AppendLine();
messageBoxCS.AppendFormat("{0} = {1}", "ItemState", e.ItemState );
messageBoxCS.AppendLine();
MessageBox.Show(messageBoxCS.ToString(), "DrawSubItem Event" );
}
Private Sub ListView1_DrawSubItem(sender as Object, e as DrawListViewSubItemEventArgs) _ 
     Handles ListView1.DrawSubItem

    Dim messageBoxVB as New System.Text.StringBuilder()
    messageBoxVB.AppendFormat("{0} = {1}", "DrawDefault", e.DrawDefault)
    messageBoxVB.AppendLine()
    messageBoxVB.AppendFormat("{0} = {1}", "Graphics", e.Graphics)
    messageBoxVB.AppendLine()
    messageBoxVB.AppendFormat("{0} = {1}", "Bounds", e.Bounds)
    messageBoxVB.AppendLine()
    messageBoxVB.AppendFormat("{0} = {1}", "Item", e.Item)
    messageBoxVB.AppendLine()
    messageBoxVB.AppendFormat("{0} = {1}", "SubItem", e.SubItem)
    messageBoxVB.AppendLine()
    messageBoxVB.AppendFormat("{0} = {1}", "ItemIndex", e.ItemIndex)
    messageBoxVB.AppendLine()
    messageBoxVB.AppendFormat("{0} = {1}", "ColumnIndex", e.ColumnIndex)
    messageBoxVB.AppendLine()
    messageBoxVB.AppendFormat("{0} = {1}", "Header", e.Header)
    messageBoxVB.AppendLine()
    messageBoxVB.AppendFormat("{0} = {1}", "ItemState", e.ItemState)
    messageBoxVB.AppendLine()
    MessageBox.Show(messageBoxVB.ToString(),"DrawSubItem Event")

End Sub

注解

处理不想自定义的子项的事件时 ListView.DrawSubItem ,请使用此属性。 如果将此属性设置为 true,则将使用 、 ListViewItem.ListViewSubItem.ForeColorListViewItem.ListViewSubItem.Font 属性的ListViewItem.ListViewSubItem.BackColor当前值正常绘制子项

注意

UseItemStyleForSubItemsListViewItem项的 属性必须设置为 false ,以防止ListViewItem.BackColor父项的值替代子项值。

适用于

另请参阅