本文整理匯總了VB.NET中System.Windows.Automation.ScrollPattern.Scroll方法的典型用法代碼示例。如果您正苦於以下問題：VB.NET ScrollPattern.Scroll方法的具體用法？VB.NET ScrollPattern.Scroll怎麽用？VB.NET ScrollPattern.Scroll使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。
在下文中一共展示了ScrollPattern.Scroll方法的2個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的VB.NET代碼示例。
示例1: GetScrollPattern
'''--------------------------------------------------------------------
''' <summary>
''' Obtains a ScrollPattern control pattern from an
''' automation element.
''' </summary>
''' <param name="targetControl">
''' The automation element of interest.
''' </param>
''' <returns>
''' A ScrollPattern object.
''' </returns>
'''--------------------------------------------------------------------
Private Function GetScrollPattern( _
ByVal targetControl As AutomationElement) As ScrollPattern
Dim scrollPattern As ScrollPattern = Nothing
Try
scrollPattern = DirectCast( _
targetControl.GetCurrentPattern(scrollPattern.Pattern), _
ScrollPattern)
Catch
' Object doesn't support the ScrollPattern control pattern
Return Nothing
End Try
Return scrollPattern
End Function 'GetScrollPattern示例2: ScrollElement
'''--------------------------------------------------------------------
''' <summary>
''' Obtains a ScrollPattern control pattern from an automation
''' element and attempts to scroll the requested amounts.
''' </summary>
''' <param name="targetControl">
''' The automation element of interest.
''' </param>
''' <param name="hScrollAmount">
''' The requested horizontal scroll amount.
''' </param>
''' <param name="vScrollAmount">
''' The requested vertical scroll amount.
''' </param>
'''--------------------------------------------------------------------
Private Sub ScrollElement( _
ByVal targetControl As AutomationElement, _
ByVal hScrollAmount As ScrollAmount, _
ByVal vScrollAmount As ScrollAmount)
If targetControl Is Nothing Then
Throw New ArgumentNullException( _
"AutomationElement argument cannot be null.")
End If
Dim scrollPattern As ScrollPattern = GetScrollPattern(targetControl)
If scrollPattern Is Nothing Then
Return
End If
Try
scrollPattern.Scroll(hScrollAmount, vScrollAmount)
Catch exc As InvalidOperationException
' Control not able to scroll in the direction requested;
' when scrollable property of that direction is False
' TO DO: error handling.
Catch exc As ArgumentException
' If a control supports SmallIncrement values exclusively
' for horizontal or vertical scrolling but a LargeIncrement
' value (NaN if not supported) is passed in.
' TO DO: error handling.
End Try
End Sub