Convert Dataset to Array in key:value pair C#

I am in Confuss in this situation,

1. I have Dataset ds which has many no of Rows
2. I just want to convert it to Array (no need arraylist)
3. I need like this example : [name:"jack",age:1],[name:"Mack",age:2]
4. array with key: value pair

note: column name must be key and current row must be value please help me out . pls go with new code

ArrayList myArrayList = new ArrayList();
                foreach (DataRow dtRow in ds.Tables[0].Rows)
                {
                    myArrayList.Add(dtRow);
                }

                var a = myArrayList;