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InterSystems IRIS for Health 2025.1
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Controlling the Form of Null String Arguments (Web Service)

Normally, if an argument is omitted, an InterSystems IRIS® data platform web service omits the corresponding element in the SOAP message that it sends. To change this, set the XMLIGNORENULL parameter to 1 in the web service class; in this case, the SOAP message includes an empty element.

Note:

This parameter affects only web method arguments of type %StringOpens in a new tab.

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