The code below serves as a working sample for those that want to serialize an ES object into a json format. It passes a datatable to do the job. Enjoy!

public class JsonSerialization
    {
        public string Serialize(DataTable dt)
        {
            StringBuilder msg = new StringBuilder();
            msg.Append("sqlFieldVals: {");

            foreach (DataRow dr in dt.Rows)
            {
                int count = 0;
                foreach (DataColumn column in dt.Columns)
                {
                    count += 1;
                    string columnName = column.ColumnName;  
                    msg.Append(columnName + ":'");
                    string value = dr[column].ToString();
                    msg.Append(value);
                    if (count != dt.Columns.Count)
                    {
                        msg.Append("',");
                    }
                    else
                    {
                        msg.Append("'");
                    }                    
                }
                
            }

            msg.Append("}");

            return msg.ToString();
        }
    }

You should use it like this:

DataTable dt = customer.Query.LoadDataTable();
                
        JsonSerialization json = new JsonSerialization();
        packet = json.Serialize(dt);

This is superb stuff! I used the custom base class option, created a public method and put your code in:

public string Json()
{

// your code

}

now i just have to:

CustomersCollection col = new CustomersCollection();
col.LoadAll();
string json = col.Json();

and my jquery stuff is something like:

function LoadData()
    {
        $.getJSON("ajaxData.ashx",function(data)
        {            
                $('#lblId').html(data.CustomerCollection.Customer[0].CustomerID);
                $('#lblName').html(data.CustomerCollection.Customer[0].Name);
           
        });
    } 

 magic!

 Note: in the code listed by paschoal1 i used the body of the method and used the Table property. so i replace 'dt' with 'Table'.

Hey Mike, that would be great. however, i was thinking about making this available to some of my previous applications where rebuilding the dal (es project) isn't an option, but adding some ajax/jquery magic is. I was contemplating inheriting from the Newtonsoft.Json.JsonConverter base class and creating an EntitySpaces converter because i can see i will be using this alot more! unless someone else beats me to it. :)