ICSharpCode.AvalonEdit.Editing.Selection.ReplaceSelectionWithText C# (CSharp) Method

        public abstract void ReplaceSelectionWithText(TextArea textArea, string newText);

        internal void RemoveSelectedText()
        {
            if (this.Document == null)
            {
                throw ThrowUtil.NoDocumentAssigned();
            }
            selection.ReplaceSelectionWithText(string.Empty);

            if (!selection.IsEmpty)
            {
                foreach (ISegment s in selection.Segments)
                {
                    Debug.Assert(this.ReadOnlySectionProvider.GetDeletableSegments(s).Count() == 0);
                }
            }
        }