RangeValuePattern.SmallChangeProperty Field

Reference

Definition

Namespace:: System.Windows.Automation

Assembly:: UIAutomationClient.dll

Important

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Identifies the SmallChange property.

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

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

 staticval mutable SmallChangeProperty : System.Windows.Automation.AutomationProperty

Public Shared ReadOnly SmallChangeProperty As AutomationProperty

Field Value

AutomationProperty

Examples

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

///--------------------------------------------------------------------
/// <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

Remarks

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

Applies to

Partilhar via