Example of a custom action in Aras Innovator

Add Part and Attach to Parent.cs

Innovator inn = this.getInnovator();

Item partToAdd = this;
partToAdd.setAction("add");

string parentPartNumber = this.getAttribute("parent", "");
if (String.IsNullOrEmpty(parentPartNumber))
{
    // If no parent is specified, just add the part like normal
    return partToAdd.apply();
}
else
{
    // If there is a parent, also create a relationship to that parent as part of this add
    Item relationshipToParent = inn.newItem("Part BOM", "add");
    Item parentPart = relationshipToParent.createPropertyItem("source_id", "Part", "get");
    parentPart.setProperty("item_number", parentPartNumber);
    relationshipToParent.setRelatedItem(partToAdd);
    return relationshipToParent.apply();
}