Question

我的表单中的自定义验证程序无效，请查看下面的javascript和代码

<script type="text/javascript">
    function checkalphabets(sender, args) {
        var pattern = /^[a-zA-Z\s]+$/;
        var regexp1 = new RegExp("(www|http|https|WWW|HTTP|HTTPS)");
        var sUser = <%= CreateFirstNameTextBox.ClientID %>.value;
        if ((!pattern.test(args.value))|| (regexp1.test(args.value))) 
        {
            return false;
        }
            return true;
    }

</script>


<body>
<form id="form1" runat="server">
<div>
    <asp:TextBox runat="server" ID="CreateFirstNameTextBox" placeholder="First Name"
        MaxLength="50"></asp:TextBox>
    <asp:CustomValidator ID="CustomValidator2" runat="server" ErrorMessage="Only Alphabets allowed! & http, www, https are not allowed"
        ClientValidationFunction="checkalphabets" ForeColor="red" ControlToValidate="CreateFirstNameTextBox"
        ValidationGroup="create" />


    <asp:Button ID="Button1" runat="server" Text="Button" OnClick="Button1_Click" ValidationGroup="create" />
</div>
</form>

我必须只允许字母表使用文本框，不应允许使用www，http，https

Answer 1

你需要在MSDN中看到关于ClientValidationFunction的示例，你可以看到在验证函数中你需要为参数设置IsValid属性，所以你需要改变你的代码，如

function checkalphabets(sender, args) {
    var pattern = /^[a-zA-Z\s]+$/;
    var regexp1 = new RegExp("(www|http|https|WWW|HTTP|HTTPS)");
    var sUser = args.Value; //<%= CreateFirstNameTextBox.ClientID %>.value;

    args.IsValid = pattern.test(sUser);
}

另请<%= CreateFirstNameTextBox.ClientID %>.value更好地使用args.Value

更新以同时使用条件

function checkalphabets(sender, args) {
    var pattern = /^[a-zA-Z\s]+$/;
    var regexp1 = new RegExp("(www|http|https|WWW|HTTP|HTTPS)");
    var sUser = args.Value; //<%= CreateFirstNameTextBox.ClientID %>.value;

    args.IsValid = pattern.test(sUser) && !regexp1.test(sUser);
}

自定义验证器不起作用

1 个答案: