javascript - 自定义验证器未触发

Question

我有一个名为gv1的 GridView 。里面有checkbox，至少要勾选1个checkbox才能处理。我对其进行了自定义验证，但它不起作用。请看下面，

自定义验证器

<asp:CustomValidator runat="server" ID="vldItemCus"
    ClientValidationFunction="ValidateSelection"
    Display="None" ErrorMessage="Select atleast one item for update" ValidationGroup="Update"></asp:CustomValidator>

验证摘要

<asp:ValidationSummary ID="vldSummary" runat="server" ShowMessageBox="True" ShowSummary="False" ValidationGroup="Update"></asp:ValidationSummary>

Javascript函数

function ValidateSelection(source, args) {
    var found = 0;
    $('#gv1 input[type=checkbox]').each(function () {
        if (this.checked) {
            found = 1;
            return false;
        }
    });
    if (found == 1) {
        args.IsValid = true;
    }
    else {
        args.IsValid = false;
    }
    return;
}

Answer 1

更改功能如下，

function ValidateSelection(source, args) {
    var found = 0;
    $('#<%= gv1.ClientID %> input[type=checkbox]').each(function () {
        if (this.checked) {
            found = 1;
            return false;
        }
    });
    if (found == 1) {
        args.IsValid = true;
    }
    else {
        args.IsValid = false;
    }
    return;
}