Difference between revisions of "Activity:GetXPathResult (Activity)"

Get XPath Result
Name	GetXPathResult
Purpose	Evaluate an XPath expression
Category	Data Exchange
Returns	True if successful
Version	2.1.15+

Latest revision as of 12:23, 23 February 2015

The GetXPathResult Activity evaluates an XPath expression in XML data. This data is typically provided by the ReadXPathDocument activity or a predecessing GetXPathResult activity.

[edit]

Description
Example

Description

Arguments

Argument	Type	Direction	Purpose
XPathDocument	String	In	The XML data to evaluate the expression on
XPathExpression	String	In	The XPath expression
XPathNavigator	XPathNavigator	In	The XPathNavigator object to evaluate the expression on; overrules XPathDocument if set
XPathResult	List<XPathNavigator>	Out	All XML data as XPathNavigator objects where expression evaluated true
Result	Boolean	Out	Returns True on success, false on error

Usage

This activity is typically used to find specific data within XML data, that was either provided by a ReadXPathDocument activity or by a previous GetXPathResult activity. Given the powerful capabilities of XPath, this activity can be used to extract literally any data from any XML structure.

Testing expressions

To simplify the creation of a valid XPath expressions, this activity features an expandable designer that allows the testing of expressions against loadable XML files. Expand the activity in the designer canvas and click the button ... to bring up a file open dialog, select a valid file and confirm with OK. If the file was successfully loaded it will be displayed as a tree structure directly in the designer. You can now start typing XPath expressions in the Expression box, they will be evaluated immediately as you type and return the filtered result in the tree view.

Example

Evaluate the following XML file against all elements that are named SAPObject, independently of the hierarchy level they appear:

<SAPObject>
<sapid>1234</sapid>
</SAPObject>

<SAPObject>
<guid>68cfff15-e253-4bc5-9290-d7c0babbe093</guid>
<descr>SAP 2 best description ever</descr>
<name>SAP_2_UPDATED</name>
</SAPObject>

<CADObject>
<cadid1>1234</cadid1>
<cadid2>5678</cadid2>
</CADObject>

<Company>
<name>kno</name>
<ComosObject>
<uid>A2NKM67ENE</uid>
<name>FVB901.199</name>
<description0>2-Wege-Regelventil132</description0>
<description1>2-Way-Valve</description1>
<ref_sap><sapid>1234</sapid></ref_sap>
<ref_cad>
<cadid1>1234</cadid1>
<cadid2>5678</cadid2>
</ref_cad>
<ref_cad_guid>adcd84d3-02c8-4cd2-9a00-8a6183b3ac5e</ref_cad_guid>
<rel_sap prop1="aaa" prop2="bbb">
<sapid>1234</sapid>
</rel_sap>
<rel_cad prop1="ccc">
<cadid1>1234</cadid1>
<cadid2>5678</cadid2>
</rel_cad>
<rel_sap_guid>68cfff15-e253-4bc5-9290-d7c0babbe093</rel_sap_guid>
</ComosObject>
</Company>

Argument	Value
XPathDocument	Connect this argument with a variable
XPathExpression	"//SAPObject"

@@ Line 93: / Line 93: @@
 | XPathExpression || <source lang = "vbnet">"//SAPObject"</source>
 |}
+<headertabs />
 ==See also==
@@ Line 100: / Line 102: @@
 [[Category:XML]]
-[[Category:Interfacing]]