如何在自定义验证后使用JavaScript提交ASP.NET

<asp:CustomValidator ID="CustomValidator1" runat="server" ErrorMessage="自定义验证错误" OnServerValidate="CustomValidator1_ServerValidate" />

protected void CustomValidator1_ServerValidate(object source, ServerValidateEventArgs args)
{
    // 在这里编写自定义验证逻辑
    if (args.Value != "正确的验证码")
    {
        args.IsValid = false;
    }
    else
    {
        args.IsValid = true;
    }
}

function submitForm() {
    var form = document.getElementById("aspnetForm");
    form.submit();
}

<asp:CustomValidator ID="CustomValidator1" runat="server" ErrorMessage="自定义验证错误" OnServerValidate="CustomValidator1_ServerValidate" ClientValidationFunction="customValidation" /><script type="text/javascript">
    function customValidation(sender, args) {
        // 在这里编写客户端验证逻辑
        if (args.IsValid) {
            submitForm();
        }
    }
</script>