Convert a LINQ Resultset to a DataTable

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public DataTable LINQToDataTable(System.Data.Linq.DataContext ctx, object query){     if (query == null)
     {          throw new ArgumentNullException("query");
     }    
     IDbCommand cmd = ctx.GetCommand(query as IQueryable);     SqlDataAdapter adapter = new SqlDataAdapter();
     adapter.SelectCommand = (SqlCommand)cmd;     DataTable dt = new DataTable("table");
     try     {
          cmd.Connection.Open();
          adapter.FillSchema(dt, SchemaType.Source);
          adapter.Fill(dt);
     }     finally     {
          cmd.Connection.Close();     }     return dt;
}
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Example: To use this method, just use the following code sample:
---------------------------------------------------------------
var vrCountry = from country in objEmpDataContext.CountryMaster
                        select new {country.CountryID,country.CountryName};
DataTable dt = LINQToDataTable(objEmpDataContext,vrCountry);

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