RangeValuePattern.ValueProperty Veld

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

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

 staticval mutable ValueProperty : System.Windows.Automation.AutomationProperty

Public Shared ReadOnly ValueProperty As AutomationProperty 

Waarde van veld

Voorbeelden

In het volgende voorbeeld wordt een RangeValuePattern object dat is verkregen uit een doelbesturingselement doorgegeven aan een functie waarmee de huidige RangeValuePattern eigenschapswaarden worden opgehaald.

///--------------------------------------------------------------------
/// <summary>
/// Gets the current property values from target.
/// </summary>
/// <param name="rangeValuePattern">
/// A RangeValuePattern control pattern obtained from 
/// an automation element representing a target control.
/// </param>
/// <param name="automationProperty">
/// The automation property of interest.
/// </param>
///--------------------------------------------------------------------
private object GetRangeValueProperty(
    RangeValuePattern rangeValuePattern,
    AutomationProperty automationProperty)
{
    if (rangeValuePattern == null || automationProperty == null)
    {
        throw new ArgumentException("Argument cannot be null.");
    }

    if (automationProperty.Id ==
        RangeValuePattern.MinimumProperty.Id)
    {
        return rangeValuePattern.Current.Minimum;
    }
    if (automationProperty.Id ==
        RangeValuePattern.MaximumProperty.Id)
    {
        return rangeValuePattern.Current.Maximum;
    }
    if (automationProperty.Id ==
        RangeValuePattern.SmallChangeProperty.Id)
    {
        return rangeValuePattern.Current.SmallChange;
    }
    if (automationProperty.Id ==
        RangeValuePattern.LargeChangeProperty.Id)
    {
        return rangeValuePattern.Current.LargeChange;
    }
    if (automationProperty.Id ==
        RangeValuePattern.ValueProperty.Id)
    {
        return rangeValuePattern.Current.Value;
    }
    return null;
}

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

    If automationProperty.Id = _
    rangeValuePattern.MinimumProperty.Id Then
        Return rangeValuePattern.Current.Minimum
    End If
    If automationProperty.Id = _
    rangeValuePattern.MaximumProperty.Id Then
        Return rangeValuePattern.Current.Maximum
    End If
    If automationProperty.Id = _
    rangeValuePattern.SmallChangeProperty.Id Then
        Return rangeValuePattern.Current.SmallChange
    End If
    If automationProperty.Id = _
    rangeValuePattern.LargeChangeProperty.Id Then
        Return rangeValuePattern.Current.LargeChange
    End If
    If automationProperty.Id = _
    rangeValuePattern.ValueProperty.Id Then
        Return rangeValuePattern.Current.Value
    End If
    Return Nothing

End Function 'GetRangeValueProperty

Opmerkingen

Deze id wordt gebruikt door UI Automation clienttoepassingen. UI Automation providers moeten het equivalente veld in RangeValuePatternIdentifiers gebruiken.