ValuePattern.ValueProperty Field


Identifies the Value property.

Namespace:   System.Windows.Automation
Assembly:  UIAutomationClient (in UIAutomationClient.dll)

Public Shared ReadOnly ValueProperty As AutomationProperty

This identifier is used by UI Automation client applications. UI Automation providers should use the equivalent field in ValuePatternIdentifiers.

In the following example, a ValuePattern object obtained from a target control is passed into a function that retrieves the current ValuePattern property values.

''' <summary>
''' Gets the current property values from target.
''' </summary>
''' <param name="valuePattern">
''' A ValuePattern control pattern obtained from 
''' an automation element representing a target control.
''' </param>
''' <param name="automationProperty">
''' The automation property of interest.
''' </param>
Private Function GetValueProperty( _
ByVal valuePattern As ValuePattern, _
ByVal automationProperty As AutomationProperty) As Object
    If (valuePattern Is Nothing Or automationProperty Is Nothing) Then
        Throw New ArgumentNullException("Argument cannot be null.")
    End If

    If automationProperty.Id = valuePattern.ValueProperty.Id Then
        Return valuePattern.Current.Value
    End If
    Return Nothing

End Function 'GetValueProperty    

.NET Framework
Available since 3.0
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