使用 jquery 验证插件验证表单输入类型文件类型
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validate form input type file type using jquery validate plugin
提问by MAK
the following code: script code
以下代码:脚本代码
<script type="text/javascript">
$(document).ready(function() {
$("#formElem").validate({
rules: {
dimage:{
minlength:200
}
},
messages: {
dimage:{
required: 'Please select the image!'
} ,
}
});
});
</script>
html code
html代码
<form id="formElem" name="formElem" action="" method="post">
<input type="file" name="dimage" id="dimage" />
</form>
I'm using jquery validate.js file for client side validation. when i create a file with above code it's not showing any error message.
我正在使用 jquery validate.js 文件进行客户端验证。当我用上面的代码创建一个文件时,它没有显示任何错误消息。
How should i alert the error message when the user not selected the file?
当用户未选择文件时,我应该如何提醒错误消息?
采纳答案by ShankarSangoli
Try this.
尝试这个。
$(document).ready(function() {
$("#formElem").validate({
rules: {
dimage:{
required: true
}
},
messages: {
dimage:{
required: 'Please select the image!'
} ,
}
});
});
回答by Seeker
If your uploading an image file Jquery Validation plugin have a option accept
you can set that to a value which will validate that if the file is really an image then your jquery code will be like this:
如果您上传图像文件 Jquery 验证插件有一个选项,accept
您可以将其设置为一个值,该值将验证该文件是否确实是一个图像,那么您的 jquery 代码将如下所示:
$("#formElem").validate({
rules: {
dimage:{
required: true,
accept:"jpg,png,jpeg,gif"
}
},
messages: {
dimage:{
required: "Select Image",
accept: "Only image type jpg/png/jpeg/gif is allowed"
}
}
});
for more information See Official Docs
有关更多信息,请参阅官方文档