System.Windows.Documents.TextSelection.ApplyPropertyValue C# (CSharp) Method

		public void ApplyPropertyValue (DependencyProperty formattingProperty, object value)
		{
			Console.WriteLine ("System.Windows.Documents.TextSelection.ApplyPropertyValue: () NIEX");
			throw new NotImplementedException ();
		}

        internal static void _OnApplyProperty(TextEditor This, DependencyProperty formattingProperty, object propertyValue, bool applyToParagraphs, PropertyValueAction propertyValueAction)
        {
            if (This == null || !This._IsEnabled || This.IsReadOnly || !This.AcceptsRichContent || !(This.Selection is TextSelection))
            {
                return;
            }

            // Check whether the property is known
            if (!TextSchema.IsParagraphProperty(formattingProperty) && !TextSchema.IsCharacterProperty(formattingProperty))
            {
                Invariant.Assert(false, "The property '" + formattingProperty.Name + "' is unknown to TextEditor");
                return;
            }

            TextSelection selection = (TextSelection)This.Selection;

            if (TextSchema.IsStructuralCharacterProperty(formattingProperty) &&
                !TextRangeEdit.CanApplyStructuralInlineProperty(selection.Start, selection.End))
            {
                // Ignore structural commands fires in inappropriate context.
                return;
            }

            TextEditorTyping._FlushPendingInputItems(This);

            // Forget previously suggested horizontal position
            TextEditorSelection._ClearSuggestedX(This);

            // Break merged typing sequence
            TextEditorTyping._BreakTypingSequence(This);

            // Apply property
            selection.ApplyPropertyValue(formattingProperty, propertyValue, applyToParagraphs, propertyValueAction);
        }