Demonstrates how to update a source item via grid event

araslabs_UpdateSourceItem.js

/** this method updates the parent's assigned creator based on the related item's assigned creator **/

// get the parent item
var parent_item = parent.thisItem;

// get the related item and its creator
var related_item = parent_item.getItemsByXPath("//Item[@type='Part' and @id='" + relatedID + "']");
if (related_item.getItemCount() > 1)
    related_item = related_item.getItemByIndex(0);
    
var related_user = related_item.getProperty("owned_by_id", "");

// if the related item's assigned creator is *not* set, return
if (related_user === "")
    return;
    
// get parent form context
var instanceFrame = parent.parent.document.getElementById("instance");
if (instanceFrame && instanceFrame.contentWindow) {
	instanceFrame = instanceFrame.contentWindow;
}

// update the parent property in cache
if (instanceFrame.handleItemChange) {
	instanceFrame.handleItemChange("owned_by_id",related_user);
}