TextBlock的背景边框

Question

我想在Windows Store应用程序中以编程方式在TextBlock周围添加边框。 我该怎么做？ 谢谢。

Answer 1

创建新项目并在OnNavigatedTo事件中添加此代码。

protected override void OnNavigatedTo(NavigationEventArgs e) 
{ 
    var tb = new TextBlock() 
    { 
     Text = "...TextBlock with border...", 
     FontSize = 20 
    }; 

    //To get actual height and width of TextBlock 
    tb.Arrange(new Rect(0, 0, Window.Current.Bounds.Width, Window.Current.Bounds.Height)); 
    tb.Measure(new Size(Window.Current.Bounds.Width, Window.Current.Bounds.Height)); 

    var border = new Border() 
    { 
     BorderThickness = new Thickness(3), 
     BorderBrush = new SolidColorBrush(Windows.UI.Colors.Red), 
     Height = tb.ActualHeight + 10, 
     Width = tb.ActualWidth + 10 
    }; 

    var rootGrid = (Grid)(((Page)this).Content); 
    rootGrid.Children.Add(border); 
    border.Child = tb; 
}