提醒用户填写

Question

private void txtCustomNo_Leave(object sender, EventArgs e)
        {
            if (txtCustomNo.Text == "")
            {
                lblCustomerNo.Visible = true;
            }
            else
            {
                lblCustomerNo.Visible = false;
            }
        }        private void txtCustomName_Leave(object sender, EventArgs e)
        {
            if (txtCustomName.Text == "")
            {
                lblCustomerName.Visible = true;
            }
            else
            {
                lblCustomerName.Visible = false;
            }
        }        private void txtLinkMan_Leave(object sender, EventArgs e)
        {
            if (txtLinkMan.Text == "")
            {
                lblLinkManName.Visible = true;
            }
            else
            {
                lblLinkManName.Visible = false;
            }
        }        private void txtTelPhone_Leave(object sender, EventArgs e)
        {
            if (txtTelPhone.Text == "")
            {
                lblTelphone.Visible = true;
            }
            else
            {
                lblTelphone.Visible = false;
            }
        }        private void cboArea_Leave(object sender, EventArgs e)
        {
            if (cboArea.Text == "")
            {
                lblArea.Visible = true;
            }
            else
            {
                lblArea.Visible = false;
            }
        }        private void txtAddress_Leave(object sender, EventArgs e)
        {
            if (txtAddress.Text == "")
            {
                lblAdress.Visible = true;
            }
            else
            {
                lblAdress.Visible = false;
            }
        }
这样写太复杂了，还有什么方法可以看上去简单谢谢各位帮忙看看

Answer 1

是的，封装自己的usercontrol，事件写到usercontrol里，自己负责自己就行了

Answer 2

说明LZ已经注意到了
通过父控件（比如你可以把那些需要提示的用户放到一个Panel中，或者直接放到一个List集合里）
遍历子控件 注册事件
foeach(var c in pnl1.Controls) //或者list
   if(c is TextBox)
        c.Leave +=  txtCustomNo_Leave;txtCustomNo_Leave(object sender, EventArgs e)方法中可以通过
((TextBox)send).Name或者Tag来找到相关联的Label

Answer 3

这样，有个取巧的方法...你的编辑框跟提示框的命名按一定规则，如：txtCustomNo，lbltxtCustomerNo
然后private void textbox_Leave(object sender, EventArgs e)
  {
   TextBox txt = sender as TextBox;
  if (txt.Text == "")
  {
  this.Controls["lab"+txt.Name].Visible = true;
  }
  else
  {
  this.Controls["lab"+txt.Name].Visible = false;
  } 

Answer 4

然后每个编辑框的离开事件都绑定到textbox_Leave

Answer 5

winform里面吗？在文本框失去焦点的事件里面判断就是了撒