How to solve sending data via ajax "Item is undefined: if (item.guid != null)" error

Question

Hi,

i'm writing this jquery script to send data to a php file via ajax it works but am getting this error can any body tell for I can solve this the code is posted bellow so is the error

here is the error which I get after the data is sent.

Item is undefined:   if (item.guid != null) 

here is the code:

// Data 
    dataObj = { correctAnswers: correctAnswers,                
               startTime:startTime,
               startDate:startDate 
               };

    //Post Data To contorler 
    $.ajax({
        type: "POST",
        url: "save",            
        data: dataObj,
        success: function(data) {
            //Need to return the file contents somehow!
            alert("Data sucessfully Sent\n");
        }
    });

Answer 1

You need to specify that you are sending json to the server. You need to add the following option to your $.ajax

contentType: "application/json; charset=utf-8"

otherwise the function is expecting standard form post by default.