how to use linq query on datatable in c#

hi friends once i got the task to query and filter datatable with linq where i got exception lik
"Invalid cast exception".
Finally when i got the solution i thought to share it with all.

1)i have created my DataTable with some dummy values:

public DataSet DummyDataTable()

            {

                DataSet ds = new DataSet();

                DataTable dt = new DataTable();

                dt.Columns.Add("Id", typeof(int));

                dt.Columns.Add("Name", typeof(string));

                dt.Columns.Add("Phone", typeof(string));

                DataRow dr = dt.NewRow();

                dr["Id"] = 1;

                dr["Name"] = "shoeb";

                dr["Phone"] = "9773217179";

                dt.Rows.Add(dr);

                dr = dt.NewRow();

                dr["Id"] = 2;

                dr["Name"] = "abdul";

                dr["Phone"] = "9821838577";

                dt.Rows.Add(dr);

                ds.Tables.Add(dt);

                return ds;

            }

2)here is my linq query to sort DataTable 

public void DataSetLinq()

            {

                DataSet ds = DummyDataTable();

                DataTable dt = new DataTable();

                dt = ds.Tables[0];

                var x = from m

                        in dt.AsEnumerable()

                        where m.Field<int>("Id") == 1

                        select new

                        {

                            Id = m.Field<int>("Id"),

                            Name = m.Field<string>("Name"),

                            Phone = m.Field<string>("Phone")

                        };

                foreach (var item in x)

                {

                    Console.WriteLine("{0} {1} {2}", item.Id, item.Name, item.Phone);

                }

            }

OUTPUT:

The point is to use your DataTable as Enumerable, where you access strongly-typed columns. 

IMPORTANT: be aware that using .Field<Datatype> you cast the data from that column to specified type -
If you cast types that cannot be casted, you will receive "Invalid cast exception".