Question

I am using Linq To Sql to insert few data to a table in Sql server 2008.

            memadd.add_id = Convert.ToDecimal(resadd);
            memadd.mem_add = txtResAdd.Text;
            memadd.tel_no1 =Convert.ToDecimal(txtResTelNo.Text);
            memadd.mob_no1 = Convert.ToDecimal(txtResMobNo.Text);
            memadd.state = drpResState.Text;
            memadd.city = drpResCity.Text;
            memadd.pin_no = Convert.ToDecimal(txtResPinNo.Text);
            dt.mem_addresses.InsertOnSubmit(memadd);
            dt.SubmitChanges(); 

My issue here is that when i insert data into the field , it gives me an error saying

Can't perform Create, Update or Delete operations on 'Table(mem_address)' because it has no primary key.

I have a situation wherein i cant set primary key to that table .Can anyone please point me out what needs to be done here.
Thanks

Answer 1

Just tell the memadd table in the DBML designer to select add_id as a PK for example.

It needs not be on the database itself.