SelectionPattern.SelectionProperty 字段

定义

命名空间:

System.Windows.Automation

程序集:

UIAutomationClient.dll

标识用于获取容器中的选定项的属性。

public: static initonly System::Windows::Automation::AutomationProperty ^ SelectionProperty;

public static readonly System.Windows.Automation.AutomationProperty SelectionProperty;

 staticval mutable SelectionProperty : System.Windows.Automation.AutomationProperty

Public Shared ReadOnly SelectionProperty As AutomationProperty 

字段值

AutomationProperty

示例

在下面的示例中，获取表示所选容器中选定项的 的集合 AutomationElement。

///--------------------------------------------------------------------
/// <summary>
/// Gets the currently selected SelectionItem objects from target.
/// </summary>
/// <param name="selectionContainer">
/// The current Selection container object.
/// </param>
///--------------------------------------------------------------------
private AutomationElement[] GetCurrentSelectionProperty(
    AutomationElement selectionContainer)
{
    try
    {
        return selectionContainer.GetCurrentPropertyValue(
            SelectionPattern.SelectionProperty) as AutomationElement[];
    }
    // Container is not enabled
    catch (InvalidOperationException)
    {
        return null;
    }
}

'''--------------------------------------------------------------------
''' <summary>
''' Gets the currently selected SelectionItem objects from target.
''' </summary>
''' <param name="selectionContainer">
''' The current Selection container object.
''' </param>
'''--------------------------------------------------------------------
Private Function GetCurrentSelectionProperty( _
ByVal selectionContainer As AutomationElement) As AutomationElement()
    Try
        Return DirectCast(selectionContainer.GetCurrentPropertyValue( _
        SelectionPattern.SelectionProperty), AutomationElement())
        ' Container is not enabled
    Catch
        Return Nothing
    End Try
End Function 'GetCurrentSelectionProperty

注解

此标识符由UI 自动化客户端应用程序使用。 UI 自动化提供程序应使用 中的SelectionPatternIdentifiers等效字段。

此属性不存在于 中SelectionPattern.SelectionPatternInformation，必须使用 或 GetCachedPropertyValue检索GetCurrentPropertyValue。