ValuePattern.Pattern Field
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Identifies the ValuePattern 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
In the following example, a ValuePattern control pattern is obtained from an AutomationElement.
///--------------------------------------------------------------------
/// <summary>
/// Obtains a ValuePattern control pattern from an
/// automation element.
/// </summary>
/// <param name="targetControl">
/// The automation element of interest.
/// </param>
/// <returns>
/// A ValuePattern object.
/// </returns>
///--------------------------------------------------------------------
private ValuePattern GetValuePattern(
AutomationElement targetControl)
{
ValuePattern valuePattern = null;
try
{
valuePattern =
targetControl.GetCurrentPattern(
ValuePattern.Pattern)
as ValuePattern;
}
// Object doesn't support the ValuePattern control pattern
catch (InvalidOperationException)
{
return null;
}
return valuePattern;
}
'''--------------------------------------------------------------------
''' <summary>
''' Obtains a ValuePattern control pattern from an
''' automation element.
''' </summary>
''' <param name="targetControl">
''' The automation element of interest.
''' </param>
''' <returns>
''' A ValuePattern object.
''' </returns>
'''--------------------------------------------------------------------
Private Function GetValuePattern( _
ByVal targetControl As AutomationElement) As ValuePattern
Dim valuePattern As ValuePattern = Nothing
Try
valuePattern = DirectCast( _
targetControl.GetCurrentPattern(valuePattern.Pattern), _
ValuePattern)
Catch
Return Nothing
End Try
Return valuePattern
End Function 'GetValuePattern
This identifier is used by UI Automation client applications. UI Automation providers should use the equivalent field in ValuePatternIdentifiers.
The pattern identifier is passed to methods such as GetCurrentPattern to retrieve the control pattern of interest from the specified AutomationElement.
Product | Versions |
---|---|
.NET Framework | 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
Windows Desktop | 3.0, 3.1, 5, 6, 7, 8, 9 |
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