WPF 字符串溢出判断,字符串长度是否超过控件宽度

 1         private void OnEllipsis(object sender, SizeChangedEventArgs e)
 2         {
 3             FormattedText formattedText = new FormattedText(
 4                 this.Header.ToString(),
 5                 Thread.CurrentThread.CurrentCulture,
 6                 this.FlowDirection,
 7                 new Typeface(this.FontFamily, this.FontStyle, this.FontWeight, this.FontStretch),
 8                 this.FontSize,
 9                 this.Foreground);
10 
11             this.IsEllipsis = formattedText.Width > e.NewSize.Width;
12         }