Question

我是PRADO的新手，我有一个文件主页：代码：

<%@ 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>

＆安培;带代码的Home.php

<?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();
    }
}
?>

$ rec包含所有值的数组。

现在我想在下拉列表中显示所有名称。我尽我所能但失败了。谁能帮我？感谢

Answer 1

您可以使用数据库表列名填充下拉列表的DataTextField和DataValueField，以分别用作TListItem的文本和值：

<?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();
    }
}
?>

或者，您可以在HTML前端执行此操作：

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

这样，您只需指定DataSource属性并在后端代码中调用DataBind()方法。

在PRADO中的DropDown列表中显示值

1 个答案: