MACROMEDIA COLDFUSION MX 7.0.2-USING COLDFUSION MX WITH FLEX 2 Guia do Utilizador descarregar pdf (Página 115)

Populate a DataGrid control 115

Populate a DataGrid control

In your application, you want the DataGrid control to display the titles of recent posts and

the dates they were posted.

1. In Source mode, enter the following dataProvider property (in bold) in the

<mx:DataGrid> tag:

<mx:DataGrid x="20" y="20" id="dgPosts" width="400"

dataProvider="{feedRequest.lastResult.rss.channel.item}">

You want the XML node named item to provide data to the DataGrid control. This node

is repeated in the XML, so it will be repeated in the DataGrid.

2. In the first <mx:DataGridColumn> tag, enter the following headerText and dataField

property values (in bold):

<mx:DataGridColumn headerText="Posts" dataField="title"/>

You want the first column in the DataGrid control to display the titles of the posts. You do

this by identifying the field in the XML that contains the title data, and then entering this

field as the value of the

dataField property. In the XML node specified in the

dataProvider property (item), the child node called title contains the information you

want.

3. In the second <mx:DataGridColumn> tag, enter the following headerText, dataField

and

width property values (in bold):

<mx:DataGridColumn headerText="Date" dataField="pubDate" width="150"/>

You want the second column in the DataGrid to display the dates of the posts. In this case,

the field that contains the data is called

pubDate.

4. Delete the third <mx:DataGridColumn> tag because you don’t need a third column.

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MACROMEDIA COLDFUSION MX 7.0.2-USING COLDFUSION MX WITH FLEX 2 Guia do Utilizador Página 115