getDoubleValues (DOMElement - JavaScript)

Gets the double value of a data element.

Gets the double values of the data elements that match an XPath.

Defined in

Syntax

getDoubleValues(xpath:string) : double[]

getDoubleValues(xpath:string, selectionNS:NamespaceContext) : double[]


Parameters	Description
`xpath`	The XPath of elements associated with the document.
`selectionNS`	A namespace context.


Return value	Description
`double[]`	The data values of the elements.

Usage

This method is equivalent to getDoubleValues in DOMDocument.

In a schema, these data elements should be defined as double. In the data properties, the display type of a bound field should be Number.

If the XPath includes namespace prefixes, either:

Define the namespaces in the second parameter, first creating a new DOMNamespaceContextImpl object and adding the namespaces with addNamespace.
Define the namespaces with setSelectionNamespaces before using this method without the second parameter.

Examples

(1) This example is for the onclick event of a button. It gets elements from the document specified by an index. The requestScope variables are bound to edit boxes on the page so the user specifies i before clicking the button, and gets back y or msg.

var dc = database.getAllDocuments();
if(dc.getDocumentCount() > 0) {
	if(requestScope.i != null &&
	requestScope.i >= 0 && 
	requestScope.i < dc.getDocumentCount()) {
		var ar = dc.getDocumentArray(requestScope.i + 1);
		var doc = ar[i];
		var elem = doc.getDocumentElement();
		requestScope.y = elem.getDoubleValues("/schema0/element2").join(", ");
	} else {
		requestScope.msg = "No such document";
	}
} else {
	requestScope.msg = "No documents in database";
}

(2) This example is for the onclick event of a button. It gets elements from the document specified by an index using namespaces. The requestScope variables are bound to edit boxes on the page so the user specifies i before clicking the button, and gets back y or msg.

var dc = database.getAllDocuments();
if(dc.getDocumentCount() > 0) {
	if(requestScope.i != null &&
	requestScope.i >= 0 && 
	requestScope.i < dc.getDocumentCount()) {
		var ns = new NamespaceContextImpl();
		ns.addNamespace("p", "http://mynamespace.com");
		var ar = dc.getDocumentArray(requestScope.i + 1);
		var doc = ar[i];
		var elem = doc.getDocumentElement();
		requestScope.y = elem.getDoubleValues("/p:schema0/p:element2", ns).join(", ");
		
	} else {
		requestScope.msg = "No such document";
	}
} else {
	requestScope.msg = "No documents in database";
}