protected void btnupdate_Click(object sender, EventArgs e) { Hashtable data = new Hashtable(); // data.Add("client_id", cbclientname.SelectedValue); data.Add("cc_id", txtclientcont.Text); // data.Add("asset_id",txtaptno .Text ); data.Add("name", txtname.Text); data.Add("phoneno", txtphoneno.Text); data.Add("emailid", txtemailid.Text); data.Add("desg", txtdesg.Text); data.Add("desc", txtdesc.Text); bll updclientcont = new bll(); updclientcont.updclientcontbyid (data); lblclientupd.Text = "Details Successfully Updated"; }