private void txt_UserName_Leave(object sender, EventArgs e)
{
if (txt_UserName.Text != "")
{
if (!ub.checkUserNemeBll(txt_UserName.Text.Trim(), "checkUserNeme"))
{
lb_usersCheck.Text = "√";
lb_usersCheck.ForeColor = Color.Green;
checkUserName = true;
}
else
{
lb_usersCheck.Text = "用户名已存在！";
lb_usersCheck.ForeColor = Color.Red;
checkUserName = false;
}
}
else
{
lb_usersCheck.Text = "请输入用户名";
lb_usersCheck.ForeColor = Color.Red;
}
}