Hi, I am getting this error when passing parameter to an ajax call This is my html page: script type="text/javascript" type="text/javascript"> $(function () { $("#theList").removeData(); $("#btnSearchAvailRoom").on("click", function () { Greating(); }); }); function Greating() { var checkin =$("#datepickercheckin").val(); var checkout = $("#datepickercheckout").val(); var query = "CarService.asmx/GetAllProducts"; $.ajax({ type: "POST", url: query, data: JSON.stringify({ checkindate: checkin, checkoutdate: checkout }), contentType: "application/json; charset=utf-8", dataType: "json", success: function (response) { var productt = response.d; alert(data); $.each(productt, function (index, product) { $("#theList").append(" " + product.name + " " + product.descr + ""); }); console.log(response); }, error: function (response) { $("#theList").append("error"); console.log(response); } }); } </script> </head> <body> <div> <fieldset> <legend>Search Room</legend> <fieldset> <legend>Show By </legend> <p> Checkin: <input type="text" id="datepickercheckin" class="datepicker" /> </p> <p> Checkout: <input type="text" id="datepickercheckout" class="datepicker" /> </p> </fieldset> <br /><input type="button" id="btnSearchAvailRoom" value="Search Room" /> </fieldset> </div> <div data-role="content"> <ul id="theList" data-role="listview" data-inset="true" data-filter="true"> </ul> </div> </body> </html> And this the code behind my webservice CarService.cs: public List<product> GetAllProducts(string Checkin, string Checkout) { List<product> lstproducts = new List<product>(); DateTime CheckinDate = DateTime.ParseExact(Checkin, "mm/dd/yyyy", CultureInfo.InvariantCulture.DateTimeFormat); DateTime CheckoutDate = DateTime.ParseExact(Checkout, "mm/dd/yyyy", CultureInfo.InvariantCulture.DateTimeFormat); using (SqlDataReader dr = SqlHelper.ExecuteReader(SqlHelper.GetConnection(), "GetProducts", CheckinDate, CheckoutDate)) { if (dr.HasRows) { while (dr.Read()) { product _product = new product(); _product.name = Convert.ToString(dr["name"]); _product.img = Convert.ToString(dr["Image"]); _product.descr = Convert.ToString(dr["Description"]); lstproducts.Add(_product); } } return lstproducts; } } Can you help what is wrong?
checkindate
checkoutdate
var
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