protected void btninsert_Click(object sender, EventArgs e)
    {
        Hashtable data = new Hashtable();
        data.Add("client_id", cbclientname.SelectedValue);
        data.Add("asset_id", cbaptno.SelectedValue);
        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);

        int id;

        bll insclientcont = new bll();
        id=insclientcont.insclientcontactdet(data);
        lblretccid.Text = "Client Contact Details Inserted & Client Contact ID is " + id.ToString();
    }