Model php problem?

[eluser]Hamed[/eluser]
Yet I have problem.

Code:

A PHP ERROR WAS ENCOUNTERED

Severity: Notice

Message: Trying To Get Property Of Non-Object

Filename: Models/Content.Php

Line Number: 24

Code:

$this->silde = $this->db->get('slide')->result();
        $this->dep = $this->db->get('dep')->result();
        $this->load->library('pagination');
        $this->load->model('content');