hasDocument = new HasDocument() īindingOperations.SetBinding(hasDocument, HasDocument.DocumentProperty, b) Private static void DocumentChanged(DependencyObject obj, DependencyPropert圜hangedEventArgs e) New PropertyMetadata(new Propert圜hangedCallback(DocumentChanged))) Public static readonly DependencyProperty DocumentProperty = Private Shared Sub TextChanged(ByVal sender As Object, ByVal e As TextChangedEventArgs)ĭim rtb As RichTextBox = Tr圜ast(sender, RichTextBox) ' When the document changes update the sourceĪddHandler rtb.TextChanged, AddressOf TextChanged

If _recursionProtection.Contains() Thenĭim rtb As RichTextBox = DirectCast(depObj, RichTextBox)

Private Shared Sub RegisterIt(ByVal depObj As, ByVal e As 圜hangedEventArgs) Public Shared ReadOnly DocumentXamlProperty As DependencyProperty = DependencyProperty.RegisterAttached('DocumentXaml', GetType(String), GetType(RichTextBoxHelper), New FrameworkPropertyMetadata('', FrameworkPropertyMetadataOptions.AffectsRender Or FrameworkPropertyMetadataOptions.BindsTwoWayByDefault, Sub(depObj, e) _recursionProtection.Add()ĭepObj.SetValue(DocumentXamlProperty, value) Public Shared Sub SetDocumentXaml(ByVal depObj As DependencyObject, ByVal value As String) Return DirectCast(depObj.GetValue(DocumentXamlProperty), String) Public Shared Function GetDocumentXaml(ByVal depObj As DependencyObject) As String Private Shared _recursionProtection As New HashSet(Of )()

Wpf richtextbox flowdocument save