動力損失焦點事件的文本框拋出錯誤

Question

失去焦點事件代碼：

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; 
    } 

事件電話： -

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

拋出以下錯誤： - 無法隱式轉換type'System.EventHandler '到'System.Windows.RoutedEventHandler'

Answer 1

LostFocus事件預計RoutedEventHandler，而不是EventHandler。

myTextBox1j.LostFocus += new RoutedEventHandler(myTextBox_LostFocus); 

這應該工作太：

myTextBox1j.LostFocus += myTextBox_LostFocus;