protected void btnBuscarModelo_Click(object sender, ImageClickEventArgs e)
    {
        ModeloBL oModelosBL = new ModeloBL();

        oModelosBL.ErrorEvent += new ModeloBL.ErrorDelegate(Master.Transaction_ErrorEvent);

        String codModelo = this.txtCodModelo.Text;
        String nomModelo = this.txtNomModelo.Text;
        String codEstado = this.cboEstadoModelo.SelectedValue;

        this.oModelosBEList = oModelosBL.GetAllBandeja(this.idMarca, codModelo, nomModelo, codEstado, Profile.Usuario.Nid_usuario);

        if (this.oModelosBEList == null || this.oModelosBEList.Count == 0)
        {
            JavaScriptHelper.Alert(this, Message.keyNoRegistros, "");
            this.oModelosBEList.Add(new ModeloBE());
        }

        this.gvModelo.DataSource = this.oModelosBEList;
        this.gvModelo.DataBind();
        ViewState["oModelosBEList"] = this.oModelosBEList;

        this.txhIdModelo.Value = String.Empty;
    }