Difference between revisions of "Activity:GetXPathResult (Activity)"
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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 {{Key press|...}} to bring up a file open dialog, select a valid file and confirm with {{Key press|OK}}. | 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 {{Key press|...}} to bring up a file open dialog, select a valid file and confirm with {{Key press|OK}}. | ||
| − | If the file was successfully loaded it will be displayed as a tree structure directly in the | + | 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== | ==Example== | ||
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! Argument!! Value | ! Argument!! Value | ||
|- align="left" | |- align="left" | ||
| − | | XPathDocument|| | + | | XPathDocument|| Connect this argument with a variable |
|- align="left" | |- align="left" | ||
| XPathExpression || <source lang = "vbnet">"//SAPObject"</source> | | XPathExpression || <source lang = "vbnet">"//SAPObject"</source> | ||
Revision as of 19:13, 22 July 2013
The GetXPathResult Activity evaluates an XPath expression in XML data. This data is typically provided by the ReadXPathDocument activity or a predecessing GetXPathResult activity.
| Get XPath Result | |
|---|---|
| Name | GetXPathResult |
| Purpose | Evaluate an XPath expression |
| Category | Data Exchange |
| Returns | True if successful |
| Version | 2.1.15+ |
Argument
| Arguments | 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:
| Argument | Value |
|---|---|
| XPathDocument | Connect this argument with a variable |
| XPathExpression | "//SAPObject" |
