protected override void OnTextBlockFormatting(TextBlockFormattingEventArgs e)
{
TokenizedTextBlockElement textBlock = e.TextBlock as TokenizedTextBlockElement;
if (textBlock != null)
{
textBlock.AllowRemove = !this.IsReadOnly && this.ShowRemoveButton;
}
base.OnTextBlockFormatting(e);
}
protected virtual void Detach(ITextBlock textBlock)
{
TokenizedTextBlockElement textBlockElement = textBlock as TokenizedTextBlockElement;
if (textBlockElement == null)
{
return;
}
textBlockElement.ContentElement.TextChanging += new TextChangingEventHandler(this.OnContentElementTextChanging);
textBlockElement.Item.PropertyChanged -= new PropertyChangedEventHandler(this.OnTokenItemPropertyChanged);
}
protected virtual RadTokenizedTextItem OnRemoveBlock(ITextBlock textBlock)
{
TokenizedTextBlockElement textBlockElement = textBlock as TokenizedTextBlockElement;
RadTokenizedTextItem tokenizedTextItem = (RadTokenizedTextItem)null;
if (textBlockElement != null)
{
tokenizedTextItem = textBlockElement.Item;
this.Items.Remove(tokenizedTextItem);
}
this.Detach(textBlock);
return(tokenizedTextItem);
}
protected virtual RadTokenizedTextItem OnInsertBlock(ITextBlock textBlock)
{
string text = textBlock.Text;
RadTokenizedTextItem tokenizedTextItem = (RadTokenizedTextItem)null;
TokenizedTextBlockElement textBlockElement = textBlock as TokenizedTextBlockElement;
if (textBlockElement != null)
{
tokenizedTextItem = textBlockElement.Item;
RadListDataItem radListDataItem = this.textBox.ListElement.Find(text);
tokenizedTextItem.Value = radListDataItem?.Value;
this.Items.Add(tokenizedTextItem);
}
this.Attach(textBlock);
return(tokenizedTextItem);
}
public override bool ProcessMouseDown(MouseEventArgs e)
{
bool flag = base.ProcessMouseDown(e);
if (e.Button == MouseButtons.Left && flag)
{
this.TextBox.CloseDropDown();
ITextBlock textBlockAtPoint = this.GetTextBlockAtPoint(e.Location);
TokenizedTextBlockElement textBlockElement = textBlockAtPoint as TokenizedTextBlockElement;
if (textBlockElement != null && !textBlockElement.RemoveButton.ControlBoundingRectangle.Contains(e.Location))
{
LineInfo line = this.TextBox.ViewElement.Lines.BinarySearchByBlockIndex(textBlockAtPoint.Index);
this.TextBox.Navigator.Select(new TextPosition(line, textBlockAtPoint, 0), new TextPosition(line, textBlockAtPoint, textBlockAtPoint.Length));
}
}
return(flag);
}
