protected void btnAdd_Click(object sender, EventArgs e) { using (var db = new bigshopeEntities()) { if (Request.QueryString["proc_id"] != null) { int proc_id = Convert.ToInt32(Request.QueryString["proc_id"]); tblProcessor p = db.tblProcessors.FirstOrDefault(v => v.proc_id == proc_id); p.proc_name = tbName.Text; p.proc_desc = tbDesc.Text; db.SaveChanges(); lblStatus.Text = "Processor updated successfully!"; Response.Redirect("catagoriesrecord.aspx"); } else { db.addProc(tbName.Text, tbDesc.Text); db.SaveChanges(); tbName.Text = ""; tbDesc.Text = ""; lblStatus.Text = "New processor added successfully!"; } } }