ScrollPattern.VerticallyScrollableProperty 字段
定义
重要
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标识 VerticallyScrollable 属性。
public: static initonly System::Windows::Automation::AutomationProperty ^ VerticallyScrollableProperty;public static readonly System.Windows.Automation.AutomationProperty VerticallyScrollableProperty; staticval mutable VerticallyScrollableProperty : System.Windows.Automation.AutomationPropertyPublic Shared ReadOnly VerticallyScrollableProperty As AutomationProperty 字段值
示例
在以下示例中，根元素传递给一个函数，该函数返回 的 集合，该集合 AutomationElement是根的子代并满足一组属性条件。
///--------------------------------------------------------------------
/// <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
注解
此标识符由UI 自动化客户端应用程序使用。 UI 自动化提供程序应使用 中的ScrollPatternIdentifiers等效字段。
