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Detach – PB Docs 126 – PowerBuilder Library

Detach – PB Docs 126

PBDOM_ATTRIBUTE:

Detach method

Description

Detaches
a PBDOM_ATTRIBUTE from its owner PBDOM_OBJECT,
a PBDOM_ELEMENT.

Syntax

Argument

Description

pbdom_attribute_name

The name of the PBDOM_ATTRIBUTE

Return Values

PBDOM_OBJECT. The PBDOM_ATTRIBUTE object
detached from its owner object.

Throws

EXCEPTION_PBDOM_OBJECT_INVALID_FOR_USE – This PBDOM_ATTRIBUTE
object’s internal implementation is null.
The occurrence of this exception is rare but can take place if severe
memory corruption occurs.

Examples

The Detach method can be used
to manipulate an XML document as follows:

Here, the PBDOM_Builder BuildFromString method
is used to create the following PBDOM_DOCUMENT object, pbdom_doc,
using an XML string:

The GetAttribute method is used to obtain
the attribute from the root element of pbdom_doc.
This value is assigned to the PBDOM_ATTRIBUTE object pbdom_attr.
The pbdom_attr object is detached
from its parent element, and the data element
is obtained from pbdom_doc using the GetChildElement method. The data element
is then assigned to the PBDOM_ELEMENT object pbdom_elem.
The attribute assigned to pbdom_attr is
assigned to pbdom_elem, yielding the
following modified pbdom_doc:

Usage

If the PBDOM_ATTRIBUTE object has no owner PBDOM_ELEMENT,
the Detach method does nothing.


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