protected void RadFilter1_ApplyExpressions(object sender, RadFilterApplyExpressionsEventArgs e)
    {
        // RadFilterDynamicLinqQueryProvider provider = new RadFilterDynamicLinqQueryProvider();
        RadFilterSqlQueryProvider provider = new RadFilterSqlQueryProvider();

        provider.ProcessGroup(e.ExpressionRoot);
        // btnInforme.Text = provider.Result;
    }
        protected void ftGrdCandidatos_ApplyExpressions(object sender, RadFilterApplyExpressionsEventArgs e)
        {
            RadFilterSqlQueryProvider queryProvider = new RadFilterSqlQueryProvider();

            queryProvider.ProcessGroup(e.ExpressionRoot);

            grdCandidato.MasterTableView.FilterExpression = queryProvider.Result;
            grdCandidato.Rebind();
        }