UpdateAttribute

Updates the value of an existing attribute in the custom XML node. If the attribute doesn't exist, the update will not occur.

Syntax

expression.UpdateAttribute(name, value);

expression - A variable that represents a ApiCustomXmlNode class.

Parameters

Name	Required/Optional	Data type	Default	Description
name	Required	string		The name of the attribute to update.
value	Required	string		The new value to assign to the attribute.

Returns

boolean

Example

Update the value of an existing attribute in a custom XML node in a presentation.

// How do I update attribute in a presentation?

// Update attribute using a custom XML node object in a presentation.

const presentation = Api.GetPresentation();
const slide = presentation.GetSlideByIndex(0);
slide.RemoveAllObjects();

const xmlManager = presentation.GetCustomXmlParts();
const xmlText = '<bookstore><book category="house"><title lang="en">The Odyssey</title></book></bookstore>';
const xml = xmlManager.Add(xmlText);
const node = xml.GetNodes('/bookstore/book')[0];
node.UpdateAttribute('category', 'ancient');

const fill = Api.CreateSolidFill(Api.HexColor('#BB0066'));
const stroke = Api.CreateStroke(0, Api.CreateNoFill());
const shape = Api.CreateShape('rect', Api.MillimetersToEmus(300), Api.MillimetersToEmus(130), fill, stroke);
shape.SetPosition(Api.MillimetersToEmus(20), Api.MillimetersToEmus(35));
slide.AddObject(shape);

const docContent = shape.GetContent();
const paragraph = docContent.GetElement(0);
paragraph.AddText('XML after update: ' + xml.GetXml());