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Displaying hierarchical XML data in AdvancedDataGrid
Posted on: June 16, 2010 at 12:00 AM
Hierarchical data is a structure of parent and child items.

Displaying hierarchical XML data in AdvancedDataGrid:

Hierarchical data is a structure of parent and child items. In this example we use a XMLList for providing a hierarchical data to the AdvancedDataGrid. You set the dataField property like dataField="@Course". You will import the two packages :

import mx.collections.HierarchicalData;

import mx.collections.XMLListCollection;

Example:

<?xml version="1.0" encoding="utf-8"?>

<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"

xmlns:s="library://ns.adobe.com/flex/spark"

xmlns:mx="library://ns.adobe.com/flex/mx"

minWidth="955" minHeight="600">

<fx:Declarations>

<fx:XMLList id="student" xmlns="">

<Course Course="Course">

<Course Course="B.Sc.">

<Branch Branch="Physics" Girls="60" Boys="120" TotalStudent="180" PASSinper="98.0"

 FAILinper="2.0"/>

<Branch Branch="Chemistry" Girls="100" Boys="50" TotalStudent="150" PASSinper="97.0"

FAILinper="3.0"/>

<Branch Branch="Mathematics" Girls="50" Boys="150" TotalStudent="200" PASSinper="98.5"

 FAILinper="1.5"/>

</Course>

<Course Course="B.Tech.">

<Branch Branch="CS" Girls="45" Boys="75" TotalStudent="120" PASSinper="99.0"

 FAILinper="1.0"/>

<Branch Branch="IT" Girls="55" Boys="65" TotalStudent="120" PASSinper="99.5"

 FAILinper="0.5"/>

<Branch Branch="EC" Girls="25" Boys="95" TotalStudent="120" PASSinper="96.7"

 FAILinper="3.3"/>

<Branch Branch="EI" Girls="40" Boys="80" TotalStudent="120" PASSinper="95"

 FAILinper="5.0"/>

<Branch Branch="Mechanical" Girls="10" Boys="80" TotalStudent="90" PASSinper="97.5"

FAILinper="2.5"/>

<Branch Branch="Civil" Girls="15" Boys="45" TotalStudent="60" PASSinper="92"

 FAILinper="8"/>

</Course>

<Course Course="B.Pharma.">

<Branch Branch="Pharmacy" Girls="70" Boys="130" TotalStudent="200" PASSinper="99.8"

 FAILinper="0.2"/>

</Course>

<Course Course="M.B.A.">

<Branch Branch="HR" Girls="48" Boys="72" TotalStudent="120" PASSinper="100"

 FAILinper="0"/>

<Branch Branch="Finance" Girls="40" Boys="80" TotalStudent="120" PASSinper="85"

 FAILinper="15"/>

<Branch Branch="Marketing" Girls="20" Boys="100" TotalStudent="120" PASSinper="99"

 FAILinper="1"/>

<Branch Branch="IT and HR" Girls="30" Boys="90" TotalStudent="120" PASSinper="100"

 FAILinper="0"/>

</Course>

<Course Course="M.C.A.">

<Branch Branch="Computer Science" Girls="30" Boys="90" TotalStudent="120"

 PASSinper="99.1" FAILinper="0.9"/>

</Course>

</Course>

</fx:XMLList>

</fx:Declarations>

<fx:Script>

<![CDATA[

import mx.collections.HierarchicalData;

import mx.collections.XMLListCollection;

]]>

</fx:Script>

<s:Panel title="Displaying Hierarchical XML data in AdvancedDataGrid" height="419"

 width="728">

<mx:AdvancedDataGrid

sortExpertMode="true"

height="363"

x="13" y="13"

width="703" dataProvider="{new HierarchicalData(student)}">

<mx:columns>

<mx:AdvancedDataGridColumn dataField="@Course" headerText="Course"/>

<mx:AdvancedDataGridColumn dataField="@Branch" headerText="Branch"/>

<mx:AdvancedDataGridColumn dataField="@Girls" headerText="Girls"/>

<mx:AdvancedDataGridColumn dataField="@Boys" headerText="Boys"/>

<mx:AdvancedDataGridColumn dataField="@TotalStudent" headerText="TotalStudent"/>

<mx:AdvancedDataGridColumn dataField="@PASSinper" headerText="PASSinper"/>

<mx:AdvancedDataGridColumn dataField="@FAILinper" headerText="FAILinper"/>

</mx:columns>

</mx:AdvancedDataGrid>

</s:Panel>

</s:Application>

Output:

Running Application:

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