/// <summary> /// 用户名文本框失去焦点事件 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void UserName_OnLostKeyboardFocus(object sender, KeyboardFocusChangedEventArgs e) { var username = UserName.Text.Trim(); if (!string.IsNullOrEmpty(username)) { if (Users.Contains(username)) { var enPwd = XmlHelper.GetUserPassword(username); if (!string.IsNullOrEmpty(enPwd)) { PasswordText.Password = SecureHelper.Base64Decode(enPwd); } } } }