jquery file upload restricting number of files

问题

I am using jquery file upload to upload the files to the server . I want to restrict the user to upload maximum 6 files . I search the wiki jquery file upload but didnt find the parameter for it . Is there any way that i can restrict the user on number of uplaods

回答1:

Use maxNumberOfFiles here is documentation :

$('#fileuploadbasic').fileupload({

maxNumberOfFiles: 6

});

回答2:

maxNumberOfFiles was not working for me so i did the following

$('#fileuploadbasic').fileupload({
    change : function (e, data) {
        if(data.files.length>=5){
            alert("Max 5 files are allowed")
            return false;
        }
    },
    maxFileSize: 20000000,
    acceptFileTypes: /(\.|\/)(jpe?g|png)$/i,
});

回答3:

You can limit the uploading files by the "Uploadhandler.php" file .change the "max_number_of_files" option. works for me. But it only validates when you upload the file.

回答4:

If you are using the "Krajee" fileupload, then you will have to use

$('#fileuploadbasic').fileinput({
    maxFileCount: 6
});

If set to 0, it means size allowed is unlimited. Defaults to 0.

回答5:

You can try:

$('#fileuploadbasic').fileupload({
  //.....
  paramName: 'your_input_name',
  add : function (e, data) {
    if(data.paramName != undefined) data.submit();
  }
});

来源：https://stackoverflow.com/questions/16011200/jquery-file-upload-restricting-number-of-files