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XML is a key technology in PRPC. How to generate the XML which the format you want. You can follow these steps below:

1. Create an instance of Rule-Obj-XML.

This XML rule is the rule which will make up the XML you want. For example:

<?xml version="1.0" encoding="UTF-8"?>
<UIForm>
<FormProperty>
<FormID><pega:reference name = ".FormID" mode="literal" /></FormID>
<FormName><pega:reference name = ".FormName" mode="literal" /></FormName>
</FormProperty>
</UIForm> 

*pega:reference is a common method. Any others please refer to HTML, Directives, and JSP Tags in prhelp.
*Mode=”literal” means that it will delete the XML especial symbol like “&it;”, “&gt;” and so on.

2. Create a model to initialize properties.(Optional)

Model is used to initialize properties. This is an optional step, and you can use Activity’s Property-Set method instead.

3. Create an Activity to call method Property-Set-XML.

The most important of XML generation is method Property-Set-XML in Activity. Example Screenshot:

*XMLGenerated is a local variable defined in Parameter Tab. It is used to save final XML.
*XMLStream and XMLType have presented in XML rule.

Generated XML just like this:

<?xml version="1.0" encoding="UTF-8"?>
<UIForm>
<FormProperty>
<FormID>the value you set for the property .FormID</FormID>
<FormName>the value you set for the property .FormName</FormName>
</FormProperty>
</UIForm> 

Additionally, for ValueList properties, the code in XML like this:

<pega:forEach name = ".StyleLink">
<StyleLink><pega:reference name = "$this" mode="literal" /></StyleLink>
</pega:forEach> 

For PageList properties, you can refer to this code, the precondition is you should use class Code-Pega-List.

<pega:forEach name="XMLStreamListPage.pxResults">
<pega:when test="$THIS.pxObjClass = 'Rule-XUI-Obj-TabStrip'">
<pega:reference name = "$THIS.XMLStream" mode="literal" />
</pega:when>
</pega:forEach>