SqlConnection con=new SqlConnection();
con.Open();

SqlCommand cmd=new SqlCommand("SPName",con);

DataTable dataTable = new DataTable("vpTableGuid");

dataTable.Columns.Add("id1", typeof(Guid));
dataTable.Columns.Add("rowNum", typeof(Int32));

dataTable.Rows.Add(Guid.NewGuid(),1);
dataTable.Rows.Add(Guid.NewGuid(),2);
dataTable.Rows.Add(Guid.NewGuid(),3);

SqlParameter param = new SqlParameter("@evaluatorList", dataTable);
param.SqlDbType = SqlDbType.Structured;
param.TypeName = "dbo.vpTableGuid";

command.Parameters.Add(param);

command.ExecuteNonQuery();

id1 UNIQUEIDENTIFIER DEFAULT NEWID() PRIMARY KEY

dataTable.Columns.Add("id1", typeof(Guid));