/// <summary>
/// 登录名失去焦点时，进行登录名验证判断，只传入一个参数，判断非空、存在
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void TxtUName_Leave(object sender, EventArgs e)
{
string msg;
lbUName.Visible = !VerifierFactory.GetVerifier(VerifierKinds.LoginVerify).Verify(out msg, txtUName.Text.Trim());
lbUName.Text = "*" + msg;
}
/// <summary>
/// 登录按钮按下时，进行登录验证，传入两个参数，若登录成功则关闭连接和cmd对象
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void BtnLogin_Click(object sender, EventArgs e)
{
string msg;
bool b = VerifierFactory.GetVerifier(VerifierKinds.LoginVerify).Verify(out msg, txtUName.Text.Trim(), txtUPwd.Text);
MessageBox.Show(msg);
if (b)
{
SqlUtils.CloseAll();
}
}