页面编辑-拖动，防触发

PDF Office/Views/PageEdit/PageEditContent.xaml.cs

@@ -1026,6 +1026,9 @@ namespace PDF_Master.Views.PageEdit
 
         private void ListBoxItem_PreviewMouseLeftButtonDown(object sender, MouseButtonEventArgs e)
         {
+            //增加辅助判断，防止误触发 拖动排序
+            //为了排除 页面 拖出App后，点击选择页面，造成拖动
+            isDraging = false;
             if (GridBOTAHeader.Visibility == Visibility.Visible && viewModel.PDFViewer != null)
             {
                 if (Keyboard.Modifiers == ModifierKeys.Shift || Keyboard.Modifiers == ModifierKeys.Control)