How to insert a record into a child table when there is relation with parent table.

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C#2.0

C#

I have taken 2 tables -> 1)Dayprogram1
2)TimeAllocate

and i have taken relation both of them like

con = new SqlConnection("Initial Catalog=customer;data source=arun;Integrated Security=SSPI");
            da = new SqlDataAdapter("Select * from dayprogram1", con);
            da1 = new SqlDataAdapter("Select * from TimeAllocate where code=100", con);
            ds = new DataSet();
            da.Fill(ds, "dayprogram1");
            da1.Fill(ds,"TimeAllocate");
            dr = new DataRelation("parent", ds.Tables["dayprogram1"].Columns["code"], ds.Tables["TimeAllocate"].Columns["code"]);
            ds.Relations.Add(dr);
            dr.ChildKeyConstraint.DeleteRule = Rule.None;
            dr.ChildKeyConstraint.UpdateRule = Rule.None;
            loaddata();

Now i want to enter a record into TimeAllocate Table...I am not getting an idea...any one help me