Error Scrolling Gridview

To solve this problem, you must ensure that the data you get from the ResultSet is not null when you enter it into the datos2[i] array:

while (rs.next()) {

            datos2[i] = rs.getString("Descripcion").toString();
            i++;
            datos2[i] = rs.getString("Precio").toString();
            i++;
            datos2[i] = rs.getString("NombreCliente").toString();
            i++;
            datos2[i] = rs.getString("Fecha").toString();
            i++;

        }

When trying to display the data on the screen through the adapter, find some null value for that reason you can see some rows but it closes when finding a null value.