ScrollPattern.VerticallyScrollableProperty Field

Reference

Definition

Namespace:: System.Windows.Automation

Assembly:: UIAutomationClient.dll

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Identifies the VerticallyScrollable property.

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

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

 staticval mutable VerticallyScrollableProperty : System.Windows.Automation.AutomationProperty

Public Shared ReadOnly VerticallyScrollableProperty As AutomationProperty

Field Value

AutomationProperty

Examples

In the following example, a root element is passed to a function that returns a collection of AutomationElements that are descendants of the root and satisfy a set of property conditions.

///--------------------------------------------------------------------
/// <summary>
/// Finds all automation elements that satisfy 
/// the specified condition(s).
/// </summary>
/// <param name="targetApp">
/// The automation element from which to start searching.
/// </param>
/// <returns>
/// A collection of automation elements satisfying 
/// the specified condition(s).
/// </returns>
///--------------------------------------------------------------------
private AutomationElementCollection FindAutomationElement(
    AutomationElement targetApp)
{
    if (targetApp == null)
    {
        throw new ArgumentException("Root element cannot be null.");
    }

    PropertyCondition conditionSupportsScroll =
        new PropertyCondition(
        AutomationElement.IsScrollPatternAvailableProperty, true);
    
    PropertyCondition conditionHorizontallyScrollable =
        new PropertyCondition(
        ScrollPattern.HorizontallyScrollableProperty, true);

    PropertyCondition conditionVerticallyScrollable =
        new PropertyCondition(
        ScrollPattern.VerticallyScrollableProperty, true);

    // Use any combination of the preceding conditions to 
    // find the control(s) of interest
    Condition condition = new AndCondition(
        conditionSupportsScroll,
        conditionHorizontallyScrollable, 
        conditionVerticallyScrollable);

    return targetApp.FindAll(TreeScope.Descendants, condition); 
}

'''--------------------------------------------------------------------
''' <summary>
''' Finds all automation elements that satisfy 
''' the specified condition(s).
''' </summary>
''' <param name="targetApp">
''' The automation element from which to start searching.
''' </param>
''' <returns>
''' A collection of automation elements satisfying 
''' the specified condition(s).
''' </returns>
'''--------------------------------------------------------------------
Private Function FindAutomationElement( _
ByVal targetApp As AutomationElement) As AutomationElementCollection
    If targetApp Is Nothing Then
        Throw New ArgumentException("Root element cannot be null.")
    End If

    Dim conditionSupportsScroll As New PropertyCondition( _
    AutomationElement.IsScrollPatternAvailableProperty, True)

    Dim conditionHorizontallyScrollable As New PropertyCondition( _
    ScrollPattern.HorizontallyScrollableProperty, True)

    Dim conditionVerticallyScrollable As New PropertyCondition( _
    ScrollPattern.VerticallyScrollableProperty, True)

    ' Use any combination of the preceding conditions to 
    ' find the control(s) of interest
    Dim condition As AndCondition = New AndCondition( _
    conditionSupportsScroll, _
    conditionHorizontallyScrollable, _
    conditionVerticallyScrollable)

    Return targetApp.FindAll(TreeScope.Descendants, condition)

End Function 'FindAutomationElement

Remarks

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

Applies to

Udostępnij za pośrednictwem