jQuery验证接受方法-TypeError:无法读取未定义的属性“调用"

jQuery验证接受方法-TypeError:无法读取未定义的属性“调用

问题描述：

我想使用validate插件检查上传文件的类型.

I want to check the upload file type using the validate plugin.

但是我收到以下错误消息:

But I got the following error message:

Uncaught TypeError: Cannot read property 'call' of undefined.
Exception occurred when checking element file, check the 'accept' method.

这是我的表格.

<form id="upload" enctype="multipart/form-data">
    <div class="control-group">
        <div class="controls">
            <input id="file" name="file" type="file">
        </div>
        <div class="form-group">
            <button class="btn btn-primary" onclick="Submit()" type="button">Submit</button>
        </div>
    </div>
</form>

这是我的JavaScript:

And here is my JavaScript:

var Submit=function(){
    var validator = $('#upload').validate({
        rules:{
            file: {
                required: true,
                accept: "audio/*, video/*"
            }
        },
        message: {
            file:"Invalid file type"
        }
   });

    validator.form();
}

答

要使用"accept"方法，您需要包括jQuery Validate其他方法文件.只需在验证文件之后添加它即可:

To use the "accept" method you'll need to include the jQuery Validate additional methods file. Simply include it after your validate file:

<script src="http://jqueryvalidation.org/files/dist/jquery.validate.min.js"></script>
<script src="http://jqueryvalidation.org/files/dist/additional-methods.min.js"></script>

然后尝试像这样启动验证器:

Then try initiating your validator like this instead:

$(document).ready(function(){
    $("#upload").validate({
        ...settings...
    });
});

然后从按钮中删除onClick和type="button"属性.

And remove the onClick and type="button" attribute from your button.

以下是文档:

http://jqueryvalidation.org/validate/

jQuery验证接受方法-TypeError:无法读取未定义的属性“调用"

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