我触发的href点击一个文件上传。 我试图阻止所有的扩展除了DOC,DOCX和pdf。 我没有得到正确的警戒值。
<div class="cv"> Would you like to attach you CV? <a href="" id="resume_link">Click here</a></div>
<input type="file" id="resume" style="visibility: hidden">
使用Javascript:
var myfile="";
$('#resume_link').click(function() {
$('#resume').trigger('click');
myfile=$('#resume').val();
var ext = myfile.split('.').pop();
//var extension = myfile.substr( (myfile.lastIndexOf('.') +1) );
if(ext=="pdf" || ext=="docx" || ext=="doc"){
alert(ext);
}
else{
alert(ext);
}
})
MyFiddle..its示值误差
更好的输入字段中使用change
事件。
更新的源:
var myfile="";
$('#resume_link').click(function( e ) {
e.preventDefault();
$('#resume').trigger('click');
});
$('#resume').on( 'change', function() {
myfile= $( this ).val();
var ext = myfile.split('.').pop();
if(ext=="pdf" || ext=="docx" || ext=="doc"){
alert(ext);
} else{
alert(ext);
}
});
更新jsFiddle。
您可以使用
<input name="Upload Saved Replay" type="file"
accept="application/pdf,application/msword,
application/vnd.openxmlformats-officedocument.wordprocessingml.document"/>
whearat
application/pdf
意味着.pdf
application/msword
意味着.doc
application/vnd.openxmlformats-officedocument.wordprocessingml.document
意味着.docx
代替。
[编辑]被警告,.dot
可能匹配了。
尝试这个
$('#resume_link').click(function() {
var ext = $('#resume').val().split(".").pop().toLowerCase();
if($.inArray(ext, ["doc","pdf",'docx']) == -1) {
// false
}else{
// true
}
});
希望这将有助于
var file = form.getForm().findField("file").getValue();
var fileLen = file.length;
var lastValue = file.substring(fileLen - 3, fileLen);
if (lastValue == 'doc') {//check same for other file format}
$('#surat_lampiran').bind('change', function() {
alerr = "";
sts = false;
alert(this.files[0].type);
if(this.files[0].type != "application/pdf" && this.files[0].type != "application/msword" && this.files[0].type != "application/vnd.openxmlformats-officedocument.wordprocessingml.document"){
sts = true;
alerr += "Jenis file bukan .pdf/.doc/.docx ";
}
});
你可以简单地通过正则表达式,使其:
形成:
<form method="post" action="" enctype="multipart/form-data">
<div class="uploadExtensionError" style="display: none">Only PDF allowed!</div>
<input type="file" name="item_file" />
<input type="submit" id='submit' value="submit"/>
</form>
和JavaScript验证:
<script>
$('#submit').click(function(event) {
var val = $('input[type=file]').val().toLowerCase();
var regex = new RegExp("(.*?)\.(pdf|docx|doc)$");
if(!(regex.test(val))) {
$('.uploadExtensionError').show();
event.preventDefault();
}
});
</script>
干杯!
对于只接受在资源管理器窗口,延长DOC文件和DOCX试试这个
<input type="file" id="docpicker"
accept=".doc,.docx,application/msword,application/vnd.openxmlformats-officedocument.wordprocessingml.document">
下面的代码为我工作:
<input #fileInput type="file" id="avatar" accept="application/pdf,application/msword,application/vnd.openxmlformats-officedocument.wordprocessingml.document" />
application/pdf means .pdf
application/msword means .doc
application/vnd.openxmlformats-officedocument.wordprocessingml.document means .docx