Invalid JSON primitive ERROR

Question

Please Help. In my ajax call getting error Invalid JSON primitive, whats wrong with this following ajax call

    $.ajax({
                url: \"/Precedent/         


        

Answer 1

Try with, remove " ' " from data,

data:{partyId:party,PartySelCombo:valueFrom,DocumentId:DocId}

Use single quote to assign your values like

Wrong:

$.ajax({
  type: 'POST',
  contentType: 'application/json',
  dataType: 'json',
  url: 'WebService.asmx/Hello',
  data: { FirstName: "Dave", LastName: "Ward" }
});

Right:

$.ajax({
  type: 'POST',
  contentType: 'application/json',
  dataType: 'json',
  url: 'WebService.asmx/Hello',
  data: '{ FirstName: "Dave", LastName: "Ward" }'
});

Please follow below link for clarifications

Invalid Json Premitive Possible Reason