ScrollItemPattern.Pattern 字段
定义
重要
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标识 ScrollItemPattern 控件模式。
public: static initonly System::Windows::Automation::AutomationPattern ^ Pattern;public static readonly System.Windows.Automation.AutomationPattern Pattern; staticval mutable Pattern : System.Windows.Automation.AutomationPatternPublic Shared ReadOnly Pattern As AutomationPattern 字段值
示例
In the following example, a ScrollItemPattern control pattern is obtained from an AutomationElement.
///--------------------------------------------------------------------
/// <summary>
/// Obtains a ScrollItemPattern control pattern from an
/// automation element.
/// </summary>
/// <param name="targetControl">
/// The automation element of interest.
/// </param>
/// <returns>
/// A ScrollItemPattern object.
/// </returns>
///--------------------------------------------------------------------
private ScrollItemPattern GetScrollItemPattern(
AutomationElement targetControl)
{
ScrollItemPattern scrollItemPattern = null;
try
{
scrollItemPattern =
targetControl.GetCurrentPattern(
ScrollItemPattern.Pattern)
as ScrollItemPattern;
}
// Object doesn't support the ScrollItemPattern control pattern
catch (InvalidOperationException)
{
return null;
}
return scrollItemPattern;
}
'''--------------------------------------------------------------------
''' <summary>
''' Obtains a ScrollItemPattern control pattern from an
''' automation element.
''' </summary>
''' <param name="targetControl">
''' The automation element of interest.
''' </param>
''' <returns>
''' A ScrollItemPattern object.
''' </returns>
'''--------------------------------------------------------------------
Private Function GetScrollItemPattern( _
ByVal targetControl As AutomationElement) As ScrollItemPattern
Dim scrollItemPattern As ScrollItemPattern = Nothing
Try
scrollItemPattern = DirectCast( _
targetControl.GetCurrentPattern( _
scrollItemPattern.Pattern), ScrollItemPattern)
Catch
' Object doesn't support the ScrollItemPattern control pattern
Return Nothing
End Try
Return scrollItemPattern
End Function 'GetScrollItemPattern
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等效字段。ScrollItemPatternIdentifiers
模式标识符将传递给方法，例如 GetCurrentPattern 从指定的 AutomationElement控件模式中检索感兴趣的控制模式。