Show values in TDropDownList in PRADO

I m new to PRADO, I have a file Home.page with code:

<%@ Title="Contact List" %>

<h1>Contact List</h1>

<a href="<%= $this->Service->constructUrl('insert')%>">Create New Contact</a>
<br/>
<com:TForm>
 <com:TDropDownList ID="personInfo">
  <com:TListItem Value="value 1" Text="item 1" />
  <com:TListItem Value="value 2" Text="item 2" Selected="true" />
  <com:TListItem Value="value 3" Text="item 3" />
  <com:TListItem Value="value 4" Text="item 4" />
 </com:TDropDownList>
</com:TForm>

& Home.php with code

<?php
class Home extends TPag开发者_运维百科e
{
    /**
     * Populates the datagrid with user lists.
     * This method is invoked by the framework when initializing the page
     * @param mixed event parameter
     */
    public function onInit($param)
    {
        parent::onInit($param);
        // fetches all data account information
        $rec = ContactRecord::finder()->findAll();
    }
}
?>

the $rec contain array of all values.

Now I want to show all name in Dropdown list. I tried my best but fail. Can anyone help me? Thanks

You can populate the DataTextField and DataValueField of the dropdownlist with the database table column names to use as the TListItem's text and value respectively:

<?php
class Home extends TPage
{
    /**
     * Populates the datagrid with user lists.
     * This method is invoked by the framework when initializing the page
     * @param mixed event parameter
     */
    public function onInit($param)
    {
        parent::onInit($param);
        // fetches all data account information
        $rec = ContactRecord::finder()->findAll();
        $this->personInfo->DataSource = $rec;
        $this->personInfo->DataTextField = "columnNameToUseAsText";
        $this->personInfo->DataValueField = "columnNameToUseAsValue";
        $this->personInfo->DataBind();
    }
}
?>

Alternatively, you can do it in the HTML front-end:

<com:TDropDownList ID="personInfo" DataTextField="columnNameToUseAsText" DataValueField="columnNameToUseAsValue" />

This way, you only need to specify the DataSource property and call the DataBind() method in your back-end code.