本文整理匯總了VB.NET中System.Windows.FrameworkElement.PredictFocus方法的典型用法代碼示例。如果您正苦於以下問題：VB.NET FrameworkElement.PredictFocus方法的具體用法？VB.NET FrameworkElement.PredictFocus怎麽用？VB.NET FrameworkElement.PredictFocus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FrameworkElement.PredictFocus方法的1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: OnPredictFocus
Private Sub OnPredictFocus(ByVal sender As Object, ByVal e As RoutedEventArgs)
Dim predictionElement As DependencyObject = Nothing
Dim elementWithFocus As UIElement = TryCast(Keyboard.FocusedElement, UIElement)
If elementWithFocus IsNot Nothing Then
' Only these four directions are currently supported
' by PredictFocus, so we need to filter on these only.
If (_focusMoveValue = FocusNavigationDirection.Up) OrElse (_focusMoveValue = FocusNavigationDirection.Down) OrElse (_focusMoveValue = FocusNavigationDirection.Left) OrElse (_focusMoveValue = FocusNavigationDirection.Right) Then
' Get the element which would receive focus if focus were changed.
predictionElement = elementWithFocus.PredictFocus(_focusMoveValue)
Dim controlElement As Control = TryCast(predictionElement, Control)
' If a ContentElement.
If controlElement IsNot Nothing Then
controlElement.Foreground = Brushes.DarkBlue
controlElement.FontSize += 10
controlElement.FontWeight = FontWeights.ExtraBold
' Fields used to reset the UI when the mouse
' button is released.
_focusPredicted = True
_predictedControl = controlElement
End If
End If
End If
End Sub