本文整理汇总了VB.NET中System.Windows.Automation.SelectionItemPattern.RemoveFromSelection方法的典型用法代码示例。如果您正苦于以下问题：VB.NET SelectionItemPattern.RemoveFromSelection方法的具体用法？VB.NET SelectionItemPattern.RemoveFromSelection怎么用？VB.NET SelectionItemPattern.RemoveFromSelection使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。
在下文中一共展示了SelectionItemPattern.RemoveFromSelection方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的VB.NET代码示例。
示例1: GetSelectionItemContainer
'''--------------------------------------------------------------------
''' <summary>
''' Retrieves the selection container for a selection item.
''' </summary>
''' <param name="selectionItem">
''' An automation element that supports SelectionItemPattern.
''' </param>
'''--------------------------------------------------------------------
Private Function GetSelectionItemContainer( _
ByVal selectionItem As AutomationElement) As AutomationElement
' Selection item cannot be null
If selectionItem Is Nothing Then
Throw New ArgumentException()
End If
Dim selectionItemPattern As SelectionItemPattern = _
DirectCast(selectionItem.GetCurrentPattern( _
selectionItemPattern.Pattern), SelectionItemPattern)
If selectionItemPattern Is Nothing Then
Return Nothing
Else
Return selectionItemPattern.Current.SelectionContainer
End If
End Function 'GetSelectionItemContainer开发者ID:VB.NET开发者，项目名称:System.Windows.Automation，代码行数:24，代码来源:SelectionItemPattern.RemoveFromSelection
示例2: RemoveItemFromSelection
'''--------------------------------------------------------------------
''' <summary>
''' Attempts to remove the current item from a collection
''' of selected items.
''' </summary>
''' <param name="selectionItem">
''' An automation element that supports SelectionItemPattern.
''' </param>
'''--------------------------------------------------------------------
Private Sub RemoveItemFromSelection( _
ByVal selectionItem As AutomationElement)
If selectionItem Is Nothing Then
Throw New ArgumentNullException( _
"Argument cannot be null or empty.")
End If
Dim selectionContainer As AutomationElement = _
GetSelectionItemContainer(selectionItem)
' Selection container cannot be null
If selectionContainer Is Nothing Then
Throw New ElementNotAvailableException()
End If
Dim selectionPattern As SelectionPattern = DirectCast( _
selectionContainer.GetCurrentPattern(selectionPattern.Pattern), _
SelectionPattern)
If selectionPattern Is Nothing Then
Return
End If
' Check if a selection is required
If selectionPattern.Current.IsSelectionRequired AndAlso _
selectionPattern.Current.GetSelection().GetLength(0) <= 1 Then
Return
End If
Dim selectionItemPattern As SelectionItemPattern = DirectCast( _
selectionItem.GetCurrentPattern(selectionItemPattern.Pattern), _
SelectionItemPattern)
If Not (selectionItemPattern Is Nothing) AndAlso selectionItemPattern.Current.IsSelected Then
Try
selectionItemPattern.RemoveFromSelection()
Catch
' Unable to remove from selection
Return
End Try
End If
End Sub开发者ID:VB.NET开发者，项目名称:System.Windows.Automation，代码行数:51，代码来源:SelectionItemPattern.RemoveFromSelection