SelectionItemPattern.SelectionItemPatternInformation.SelectionContainer 屬性

定義

命名空間:

System.Windows.Automation

組件:

UIAutomationClient.dll

取得支援 SelectionPattern 控制項模式且作為呼叫物件之容器的 AutomationElement。

public:
 property System::Windows::Automation::AutomationElement ^ SelectionContainer { System::Windows::Automation::AutomationElement ^ get(); };

public System.Windows.Automation.AutomationElement SelectionContainer { get; }

member this.SelectionContainer : System.Windows.Automation.AutomationElement

Public ReadOnly Property SelectionContainer As AutomationElement

屬性值

AutomationElement

容器物件。 預設為 null 參考 (在 Visual Basic 中為 Nothing)。

範例

下列範例示範如何擷取 AutomationElement 代表選取專案選取容器的 。

///--------------------------------------------------------------------
/// <summary>
/// Retrieves the selection container for a selection item.
/// </summary>
/// <param name="selectionItem">
/// An automation element that supports SelectionItemPattern.
/// </param>
///--------------------------------------------------------------------
private AutomationElement GetSelectionItemContainer(
    AutomationElement selectionItem)
{
    // Selection item cannot be null
    if (selectionItem == null)
    {
        throw new ArgumentException();
    }

    SelectionItemPattern selectionItemPattern = 
        selectionItem.GetCurrentPattern(SelectionItemPattern.Pattern) 
        as SelectionItemPattern;
    if (selectionItemPattern == null)
    {
        return null;
    }
    else
    {
        return selectionItemPattern.Current.SelectionContainer; 
    }
}

'''--------------------------------------------------------------------
''' <summary>
''' Retrieves the selection container for a selection item.
''' </summary>
''' <param name="selectionItem">
''' An automation element that supports SelectionItemPattern.
''' </param>
'''--------------------------------------------------------------------
Private Function GetSelectionItemContainer( _
ByVal selectionItem As AutomationElement) As AutomationElement
    ' Selection item cannot be null
    If selectionItem Is Nothing Then
        Throw New ArgumentException()
    End If

    Dim selectionItemPattern As SelectionItemPattern = _
    DirectCast(selectionItem.GetCurrentPattern( _
    selectionItemPattern.Pattern), SelectionItemPattern)
    If selectionItemPattern Is Nothing Then
        Return Nothing
    Else
        Return selectionItemPattern.Current.SelectionContainer
    End If
End Function 'GetSelectionItemContainer