How to set value to a node inside a node?

[Former Member]

Hi all,

i have a context like this:

Order (0...n)

L---LineItem (0...n)

. . L----ProductNo

. . L----Quantity

L CustomerName

L Address

I have no problem setting values for the Order level, but how to set values for the LineItem level?

this is how i create the Order level.

IOrderElement ele = wdContext.nodeOrder.createOrderElement();
ele.setCustomerName("Bob");
ele.setAddres("Some address");
wdContext.nodeOrder.addElement(ele);

IOrderElement ele = wdContext.nodeOrder.createOrderElement();
ele.setCustomerName("John");
ele.setAddres("Some other address");
wdContext.nodeOrder.addElement(ele);

but when i try to create the LineItem level using the same way, they all add to the first element of the Order node.

how to add LineItem element to the correct element of the order element?

Thanks.

[Former Member · Accepted solution]

It depends. If the inner node is a non-singleton child node, then every element of the outer node has its own instance of the inner node and you can access this like

IOrderElement order = ...;
/* create and add line item to order: */
ILineItemElement item = order.nodeLineItem().createAndAddLineItemElement();
/* access all line items for order: */
for (int i = 0; i < order.nodeLineItem().size(); ++i)
{
  ILineItemElement item = order.nodeLineItem().getLineItemElementAt(i);
}

If the inner node is a singleton child node, it exists only for the lead selected element of the parent node. The current instance can then be accessed like

wdContext.currentOrderElement().nodeLineItem();

Armin

[Former Member · Accepted solution]

Hi Armin,

thanks for the reply, but there no such method for the IOrderElement class, i can't get acess to the instance. there's no ".nodeLineItem()"

ILineItemElement item = order.nodeLineItem().createAndAddLineItemElement();

i am using 7.1 CE, is that why?

[Former Member · Accepted solution]

That means the inner node "LineItem" is singleton, right? In that case, define a supply function for this node like

void supplyLineItem(ILineItemNode node, IWDNodeElement parentElement)
{
  IOrderElement order = (IOrderElement) parentElement;
  ILineItemElement item = node.createAndAddLineItemElement();
  // etc
}

Armin