Newtonsoft.Json JsonConvert To Datatable

Question

I have a code like this,

DataTable dt = new DataTable();

string data = \"{\\\"ProductId\\\":[1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,         


        

Answer 1

Your data cannot be converted to Datatabe

When I try your code it gives me:

Additional text found in JSON string after finishing deserializing object.

However when I do:

object obj  = JsonConvert.DeserializeObject(data); 

works fine.

You can also create your own class:

public class MyObject
{
    public int[] productId { get; set; }
    public string[] ProductName { get; set; }
}

MyObject obj = JsonConvert.DeserializeObject<MyObject>(data); 

So for different types of data you have, you can create different classes:

    public class MyObject2{
    ...
    }

    public class MyObject3{
    ...
    }
    ...

Object obj = null;
try{
 obj = JsonConvert.DeserializeObject<MyObject>(data); 
}catch{
      try{
      obj = JsonConvert.DeserializeObject<MyObject2>(data);
      }catch{
           try{
             obj = JsonConvert.DeserializeObject<MyObject3>(data);
           }catch{
             //Log error new type of data received
             throw new Exception();
           }
      }

}
if (obj.GetType() == typeof(MyObject)){
   ...
}else if (obj.GetType() == typeof(MyObject2)){
   ...
}
....

Answer 2

Your json must be an array of objects to be converted to a DataTable, it must start like this :

"[{\"ProductId\..........

end ends like this:

....,\"fieldName\":Value}]"