expression Attribute (assignmentAction Element)
Contains an XPath expression to populate the value of the targetField attribute.
Type
xsd:string
Parent Elements
| Element | Description |
|---|---|
| assignmentAction | Defines an action to set the value of a field. |
Definition
<xsd:attribute name="expression" type="xsd:string" use="required" ></xsd:attribute>
Remarks
Note This item is not supported when the Disable Service Pack features option on the Advanced tab of the Options dialog box in InfoPath is selected or when Microsoft Office 2003 Editions Service Pack 1 or later is not installed. Any form defined by a form definition file (.xsf) that includes this item cannot be opened in InfoPath when service pack features are disabled or unavailable.
Example
The following is an example of the expression attribute as it is used in the assignmentAction element:
<xsf:rule caption="Receipts" condition="my:expense > 75">
<xsf:dialogBoxMessageAction>Don't forget your receipts!</xsf:dialogBoxMessageAction>
<xsf:switchViewAction view="Approval View"/>
<xsf:assignmentAction targetField="my:group8/my:group9/my:target"
expression ="sum(my:expenses/my:expense) * my:taxRate"/>
<xsf:queryAction adapter="Exchange Rates"/>
<xsf:submitAction adapter="Exchange Rates"/>
<xsf:openNewDocumentAction solutionURI="uri:microsoft-ExpenseReport"/>
<xsf:closeDocumentAction promptToSaveChanges="yes"/>
<xsf:dialogBoxExpressionAction>my:group/my:field1</xsf:dialogBoxExpressionAction>
<xsf:exitRuleSet/>
</xsf:rule>