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我想在WPF的RichTextBox创建简单的“懒加载工具提示”为超链接。如何衡量一个超链接元素的高度?
我此用弹出控制,如下所示:
private Popup popup;
private void Hyperlink_MouseEnter(object sender, MouseEventArgs e)
{
Hyperlink hyper = sender as Hyperlink;
popup = new Popup();
popup.Child = new Label() { Content = "content of the popup" };
popup.IsOpen = true;
var pos = e.GetPosition(richTextBox);
popup.Placement = PlacementMode.RelativePoint;
popup.PlacementTarget = richTextBox;
popup.HorizontalOffset = pos.X;
popup.VerticalOffset = pos.Y + 30;
}
为了实现这一点,我要测量给定超链接元件的高度(以像素为单位),所以可替换这个“30”以正确的值保持不变。
有什么办法来衡量超链接在WPF高度?