convert from SqlDataReader to JSON

Question

public string toJSON(SqlDataReader o)
{
    StringBuilder s = new StringBuilder();
    s.Append(\"[\");
    if (o.HasRows)
        while (o.Read())
            s.App         


        

Answer 1

Another option would be to use James Newton-King's excellent JSON.NET library - http://www.newtonsoft.com/json

Here's a quick example on how to use it to build up a collection and then output it as a JSON-serialized string:

using Newtonsoft.Json;

class Program
{
    static void Main(string[] args)
    {
        ArrayList objs = new ArrayList();

        //get the data reader, etc.
        while(o.Read())
        {
            objs.Add(new
            {
                Id = o["Id"],
                CN = o["CatName"],
                Ord = o["Ord"],
                Icon = o["Icon"]
            });
        }

        //clean up datareader

        Console.WriteLine(JsonConvert.SerializeObject(objs));
        Console.ReadLine();
    }
}

You could do the same with your looping by reading in each row of your SqlDataReader into an anonymous object and then use JSON.NET to serialize it to a string.

Hope this helps!