Json2DataSet can convert the given json string to the ADO.NET DataSet, by using the Newtonsoft.Json library. Json2DataSet can handle most of the json token structure and generates the ADO.NET DataTables and DataRelations correspondingly.
Simply use the following two lines of code to convert a json string to ADO.NET DataSet object.
var json = File.ReadAllText(@"d:\test.json");
var dataSet = Json2DataSetConverter.Convert(json);