c# - 文本框的动态失去焦点事件抛出错误

Question

失去焦点事件代码:

public void myTextBox_LostFocus(object sender, System.Windows.Input.GestureEventArgs e)
    {
        string name = ((TextBox)sender).Name;

        string strl = "tbox" + name.Substring(4);
        TextBox text = FindTextBoxByName(strl);

        text.HorizontalAlignment = HorizontalAlignment.Left;
        text.Width = 50;
        text.Height = 40;
    }

事件调用:-

 myTextBox1j.LostFocus += new EventHandler<GestureEventArgs>(myTextBox_LostFocus);

抛出以下错误:-无法将类型“System.EventHandler”隐式转换为“System.Windows.RoutedEventHandler”

Answer 1

LostFocus 事件需要一个 RoutedEventHandler，而不是 EventHandler。

myTextBox1j.LostFocus += new RoutedEventHandler(myTextBox_LostFocus);

这也应该有效:

myTextBox1j.LostFocus += myTextBox_LostFocus;