private void buttonSaveMergedDocument_Click(object sender, RoutedEventArgs e)
{
TextRange textRange = new TextRange(richTextBoxMerged.Document.ContentStart, richTextBoxMerged.Document.ContentEnd);
String[] pureContent = textRange.Text.Split(new string[] { "\r\n", "\n" }, StringSplitOptions.None);
FlowDocument mergedDocument = new FlowDocument();
foreach (String s in pureContent)
{
Paragraph p = new Paragraph(new Run(s));
mergedDocument.Blocks.Add(p);
}
controller.SaveMergedDocument(mergedDocument);
richTextBox.Document = mergedDocument;
richTextBox.Width = double.NaN;
richTextBoxMerged.Visibility = Visibility.Hidden;
Grid.SetRow(richTextBox, 0);
Grid.SetRow(richTextBoxMerged, 0);
richTextBox.IsReadOnly = false;
labelMerge.Visibility = Visibility.Hidden;
labelServer.Visibility = Visibility.Hidden;
buttonSaveDocument.Click -= buttonSaveMergedDocument_Click;
buttonSaveDocument.Click += new RoutedEventHandler(buttonSaveDocument_Click);
buttonSaveDocument.Content = "Save document";
}