C# (CSharp) VisualTreeHelpers.FindDescendents示例

示例#1

    public void FindDescendentsTest()
    {
        var sp  = new StackPanel();
        var chb = new CheckBox();
        var tb  = new TextBlock();

        const string inputText = "Hello world!";

        tb.Text = inputText;

        chb.Content = tb;
        sp.Children.Add(chb);

        var ele = VisualTreeHelpers.FindDescendents <TextBlock>(sp);
        var tb2 = ele.First();

        Assert.AreEqual(inputText, tb2.Text);
    }