Populating drop-down list

[Former Member]

Think the issue I have is a different flavor of the issue covered by this topic. Just re-phrasing my question to make things clear. Need to populate dropdown list at runtime with node elements. The structure is as follows.

NodeA

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NodeA1

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NodeA11

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Element1

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Element2

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Element3

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NodeA2

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NodeA21

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Element1

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Element2

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Element3

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NodeA3

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NodeA31

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Element1

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Element2

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Element3

NodeA created at design time. Node elements A1,A2 and A3 are created at runtime. Based on the lead node (A1 or A2 or A3), need to re-populate dropdownlist with elements 1,2, 3 etc. Is this possible ?

Thanks for your time !

Sri

Message was edited by: Armin Reichert

[Former Member]

To avoid confusion:

- How does your context look at design time?

- Are NodeA1,... nodes or node elements?

- Which nodes are singletons?

Armin

[Former Member]

At design time we have NodeA (singleton). Node A1, A2 are created at runtime, and I assume they are node elements.

Node elements are singletons as well. I hope this clarifies your question.

Appreciate your help !

Sri

[Former Member]

How are A1, A2, ... created, using IWDNode.createElement()? Then they are node <b>elements</b>, not nodes.

The singleton-property defines a relation between a node and its parent node.

If a node is a singleton, then (at runtime) there exists only one instance of this node for all node elements of its parent node.

If a node is a non-singleton, then each node element of its parent node has its own instance of this node.

See also "Inside Web Dynpro", page 67..

Can you clarify this for your example?

Armin

[Former Member]

Yes, A1, A2 are ndoe elemnts created using IWDNode.createElement(). Code snippet to create Node elements A1, A2 etc. and their child node elements A11, A21 etc. is pasted below.

I really appreciate you taking the time to clarify this issue.

//load sales orgs from rule engine and populate context nodes

ProductionSourceLoadingRuleContainer prodRuleCont = ProductionSourceLoadingRuleContainer.getInstance();

//create list of fields to generate the field descriptors for

Vector fieldList = new Vector();

fieldList.addElement("DChainSpecStatus");

fieldList.addElement("DChainFromDate");

fieldList.addElement("DeliveringPlant");

fieldList.addElement("CashDiscount");

fieldList.addElement("TaxClassification");

fieldList.addElement("MinOrderQty");

fieldList.addElement("MinDeliveryQty");

fieldList.addElement("DeliveryUnit");

fieldList.addElement("MaterialStatGrp");

fieldList.addElement("MaterialPrcGrp");

fieldList.addElement("CommissionGrp");

fieldList.addElement("ItemCatGrp");

fieldList.addElement("MaterialGrp1");

fieldList.addElement("MaterialGrp3");

fieldList.addElement("MaterialGrp4");

fieldList.addElement("MaterialGrp5");

fieldList.addElement("MaterialGrp5");

fieldList.addElement("PriceSheetInd");

fieldList.addElement("ECatalogInd");

fieldList.addElement("TradePriceMultiplier");

fieldList.addElement("BrandCode");

fieldList.addElement("ProductAttribute5");

//add attributes as necessary

for(Iterator itr = prodRuleCont.getSalesOrgs().iterator() ;itr.hasNext();){

String currentSalesOrg = (String)itr.next();

//create a sales org node for each sales org and add attributes that correspond for each field in sales org view

IWDNodeInfo salesOrgs = wdContext.nodeSalesOrgs().getNodeInfo();

IWDNodeInfo salesOrg = salesOrgs.addChild(currentSalesOrg,null,true,true,true,false,false,true,null,null,null);

//each element in the enumeration represents a field name, and needs to be added to the sales org as a field descriptor

Enumeration fields = fieldList.elements();

while(fields.hasMoreElements()){

IWDNodeInfo salesOrgElement = salesOrg.addChild(currentSalesOrg+fields.nextElement(),null,true,true,true,false,false,true,null,null,null);

salesOrg.addAttribute("defaultValue","ddic:com.sap.dictionary.string");

salesOrg.addAttribute("labelValue","ddic:com.sap.dictionary.string");

salesOrg.addAttribute("labelID","ddic:com.sap.dictionary.string");

salesOrg.addAttribute("readOnly","ddic:com.sap.dictionary.boolean");

salesOrg.addAttribute("required","ddic:com.sap.dictionary.boolean");

salesOrgElement.addChild(fields.nextElement()currentSalesOrg"Set",null,true,true,true,false,false,true,null,null,null);

IWDNode node = wdContext.wdGetAPI().getRootNode().getChildNode(currentSalesOrg+fields.nextElement(),IWDNode.LEAD_SELECTION);

IWDNodeElement nodeElem = node.createElement();

nodeElem.setAttributeValue("defaultValue","");

nodeElem.setAttributeValue("labelValue","");

nodeElem.setAttributeValue("labelID","");

nodeElem.setAttributeValue("readOnly","");

nodeElem.setAttributeValue("required","");

//IWDNode nodeSet = wdContext.wdGetAPI().getRootNode().getChildNode(currentSalesOrgfields.nextElement()"Set",IWDNode.LEAD_SELECTION);

//IWDNodeElement nodeElemSet = nodeSet.createElement();

//nodeElemSet.setAttributeValue("element1","");

node.addElement(nodeElem);

//nodeSet.addElement(nodeElemSet);

}

}

wdContext.nodeSalesOrgs().setLeadSelection(0);

Hope this helps !

Sri

[Former Member]

Forgot to mention. All nodes elements are singletons.

Thanks !

[Former Member]

Armin,

Sorry, I was wrong....

NodeA is Independent singleton node...

All other nodes are independent non-singleton nodes....

Similar to the Figure 6.3 in the book.

Hope this helps !

Sri

[Former Member]

Previous reponse should read...

"All other nodes are dependent singleton nodes"......

Thanks !