我在更新/编辑菜单
时显示所选项目时出现问题未选择该项目。怎么让它自动选择?
这是我的模特
public function master_kategorilapor(){
$this->db->order_by('id_kategorilapor');
$sql_kategorilapor=$this->db->get('kategorilapor');
if($sql_kategorilapor->num_rows()>0){
return $sql_kategorilapor->result_array();
}
}
这个控制器
public function tambah_lapor(){
$data['kategorilapor'] = $this->mymodel->master_kategorilapor();
$dd_kategorilapor = array();
foreach ($this->mymodel->master_kategorilapor() as $data_kategorilapor)
{
$dd_kategorilapor[$data_kategorilapor['id_kategorilapor']] = $data_kategorilapor['nama_kategorilapor'];
}
$data['kategorilapor']=$dd_kategorilapor;
$this->load->view ('petugas/tambah_lapor', $data);
}
控制器获取更新数据
public function update_data ($id_lapor){
$this->load->model("mymodel");
$mhs = $this -> mymodel -> GetLapor("where id_lapor = '$id_lapor' ");
$data = array(
"id_lapor" => $mhs[0]['id_lapor'],
"tgl_lapor" => $mhs[0]['tgl_lapor'],
"t1" => $mhs[0]['t1'],
"t2" => $mhs[0]['t2'],
"dari" => $mhs[0]['dari'],
"untuk" => $mhs[0]['untuk'],
"id_tujuanlapor" => $mhs[0]['id_tujuanlapor'],
"id_kategorilapor" => $mhs[0]['id_kategorilapor'],
"isi_taruna" => $mhs[0]['isi_taruna'],
"keterangan_taruna" => $mhs[0]['keterangan_taruna']);
$this->load->view('petugas/update_lapor',$data);
}
这是我的观点
<?php echo form_dropdown("id_kategorilapor",$kategorilapor); ?>
答案 0 :(得分:2)
让我们看一下下拉方法的基本形式。
$dd_list = array(
'Mr' => 'Mr',
'Mrs' => 'Mrs',
'Miss' => 'Miss',
);
echo form_dropdown('title', $dd_list, 'Mr');
这里我们用标题列表创建了数组。然后我们在表单中打印下拉列表。
假设我们想在我们的数据库中为Mr,2为Mrs和3为Miss存储键值1,我们将以上代码修改为:
$dd_list = array(
'1' => 'Mr',
'2' => 'Mrs',
'3' => 'Miss',
);
echo form_dropdown('title', $dd_list, '3');
上面我们设置了3:Miss作为默认选择值。
让我们将set_value函数的基本形式添加到上面的代码中。因此,表单将记住在提交不完整的情况下提交的内容。
$dd_list = array(
'1' => 'Mr',
'2' => 'Mrs',
'3' => 'Miss',
);
$dd_name = "title";
echo form_dropdown($dd_name, $dd_list, '3');
<强>最后强>
$dd_list = array(
'1' => 'Mr',
'2' => 'Mrs',
'3' => 'Miss',
);
$dd_name = "title";
$sl_val = $this->input->post($dd_name);
echo form_dropdown($dd_name, $dd_list, set_value($dd_name, ( ( !empty($sl_val) ) ? "$sl_val" : 3 ) ) );