Question:

I have an array and I am sending it to a web service,

the url is this

http://localhost:4025/vmp_webservice.asmx/LoadService2Daily?fromDate=2014-05-26+00%3A00%3A00&toDate=2014-05-26+23%3A59%3A01&campaigns%5B%5D=default&campaigns%5B%5D=Support

that url doesn't work and return 500 internal error

but when I remove the %5B%5D, the url becomes this:

http://localhost:4025/vmp_webservice.asmx/LoadService2Daily?fromDate=2014-05-25+00%3A00%3A00&toDate=2014-05-25+23%3A59%3A01&campaigns=default&campaigns=Support

and it works perfectly.

what are these strange characters and how to remove them please?

The array is the selectedCampains and I am sending it like this:

$.getJSON(webServiceUrl, { fromDate: valFrom, toDate: valTo, campaigns: selectedCampaigns })

I get that array in this way:

var selectedCampaigns = $("#campaignDiv input:checkbox:checked").map(function () { return $(this).val(); }).get(); console.log(selectedCampaigns);

OK, these are the square brackets and it has to parsed and removed from URL:

var sc = JSON.stringify(selectedCampaigns);

pass this sc where you're trying to pass selectedCampaigns as an array.