public void ClearRichEditBox()
{
SysEditBox.Focus(FocusState.Keyboard);
SysEditBox.Document.Selection.SetRange(0, SysEditBox.Document.Selection.EndPosition);
ITextSelection sve = SysEditBox.Document.Selection;
sentenceService.UndoVisualChangeAnno(sve);
SysEditBox.Focus(FocusState.Keyboard);
SysEditBox.Document.Selection.SetRange(0, 0);
}
private void annoTreeView_ItemInvoked(TreeView sender, TreeViewItemInvokedEventArgs args)
{
var node = args.InvokedItem as TreeViewNode;
Dimension selDim = node.Content as Dimension;
ITextSelection selectedText = SysEditBox.Document.Selection;
// selectedText.SetRange(selectedText.StartPosition, selectedText.EndPosition - 1);
ViewModel.Annotate(selectedText, selDim);
AnnoNameTextBlock.Text = selDim.Name;
string str;
SysEditBox.Document.Selection.GetText(TextGetOptions.FormatRtf, out str);
var end = str.Length - 1;
SysEditBox.Document.Selection.SetRange(end, end); // !!!!!!!!!!!!!!!
SysEditBox.Focus(FocusState.Keyboard);
}