I have a json object as follows:
[{\"Id\":\"1\",\"Item\":\"Apples\",\"PricePerKilo\":\"10.00\"}, {\"Id\":\"3\",\"Item\":\"Oranges\",\"PricePerKilo\":\"12.00\"}]
You would have to loop through your array and select the id that matches:
$.each(fruits, function(i, val){ if (val.Id == 3) { // val is now the single fruit object with the id of 3 } });