SelectionPattern.Pattern Field
Definition
Important
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Identifies the SelectionPattern control pattern.
public: static initonly System::Windows::Automation::AutomationPattern ^ Pattern;
public static readonly System.Windows.Automation.AutomationPattern Pattern;
staticval mutable Pattern : System.Windows.Automation.AutomationPattern
Public Shared ReadOnly Pattern As AutomationPattern
Field Value
Examples
In the following example, a SelectionPattern control pattern is obtained from an AutomationElement.
///--------------------------------------------------------------------
/// <summary>
/// Obtains a SelectionPattern control pattern from an
/// automation element.
/// </summary>
/// <param name="targetControl">
/// The automation element of interest.
/// </param>
/// <returns>
/// A SelectionPattern object.
/// </returns>
///--------------------------------------------------------------------
private SelectionPattern GetSelectionPattern(
AutomationElement targetControl)
{
SelectionPattern selectionPattern = null;
try
{
selectionPattern =
targetControl.GetCurrentPattern(SelectionPattern.Pattern)
as SelectionPattern;
}
// Object doesn't support the SelectionPattern control pattern
catch (InvalidOperationException)
{
return null;
}
return selectionPattern;
}
'''--------------------------------------------------------------------
''' <summary>
''' Obtains a SelectionPattern control pattern from an
''' automation element.
''' </summary>
''' <param name="targetControl">
''' The automation element of interest.
''' </param>
''' <returns>
''' A SelectionPattern object.
''' </returns>
'''--------------------------------------------------------------------
Private Function GetSelectionPattern( _
ByVal targetControl As AutomationElement) As SelectionPattern
Dim selectionPattern As SelectionPattern = Nothing
Try
selectionPattern = DirectCast( _
targetControl.GetCurrentPattern(selectionPattern.Pattern), _
SelectionPattern)
' Object doesn't support the SelectionPattern control pattern
Catch
Return Nothing
End Try
Return selectionPattern
End Function 'GetSelectionPattern
Remarks
This identifier is used by UI Automation client applications. UI Automation providers should use the equivalent field in SelectionPatternIdentifiers.
The pattern identifier is passed to methods such as GetCurrentPattern to retrieve the control pattern of interest from the specified AutomationElement.
Applies to
Σχόλια
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