I've broken the code up into more steps;
string formid = txt_formid.Text;
string no1 = bl.bl_chk_no1(formid);
string no = bl.bl_chk_no(formid);
int v1 = int.Parse(no1);
int v2 = int.Parse(no);
if (v1 >= (v2 + 1))
{
string OFFER_ID= txt_offer_id.Text;
string FORMID = txt_formid.Text.Trim();
}
Hope this helps,
Fredrik