Solved: Binding Collection of Objects to display them in D...

Former Member · ‎08-29-2005

Hi All,

I have a collection of String Objects And I want to display all these values in a DropDownByKey or Index Control.

I know how to bind a collection to a model node attribute.

As i don't have such a Model node in the context, i am thinking of binding the collection to a value node attribute.

But Binding a collection of String(or some objects) to a value node" attribute is not like like binding the same to a model node" Attribute.

Every Time i bind the collection by

wdContext.nodeFilter().bind(colFilters);// this works if it were a model node

, i get the follwing error.

"you must bind NodeElements to a value node"

i know this thing

IPrivate<ViewName>.I<ValueNode> nod = wdContext.node<Node>();

IPrivate<ViewName>.I<ValueNode>Element ele = null;

ele = nod.create<Node>Element();

and then using set method with ele to set each attribute individually, but this doesn't help me in my scenario

I don't know how to proceed, plz help urgently

Former Member · ‎08-29-2005

Hi Vilish,

The method AnilKumar gave is to be used with DropDownByIndex. There you bind the 'texts' property to an attribute inside a node. Then you can use the code that AnilKumar gave to populate the node.

The method Noufal gave is for DropDownByKey. In this, you have to create a simple type in your Local Dictionary, create an attribute of that type. Then bind the 'selectedKey' of the drop down to this attribute. Then Use the code that Noufal gave to dynamically populate the dropdown.

Hope this helps,

Best Regards,

Nibu.

Former Member · ‎08-29-2005

Hi,

If u are trying to bind a collection to a value node attribute... what is the type of the value node attribute ..

Is it a java collection object.If yes ,then it should work..?

Assuming this does not work..you can still solve it by using SVS services..

This gets a attribute.. modifies it to a simple type...(something like typecasting.. but the base type will be a normal java type... the terminology i use might not be correct..but i hope u get the point ! )

So it gets a simple type of this attribute.. so you can populate the simple type

Info1 is giving a null pointer exception because the attribute might not be available

In this code <name> is the name of the attrubute in the node <nodename>

IwdAttributeInfo info=wdContext.node<ndoename>().getNodeInfo().getAtrribute(<name>);

ISImpleTYpeModifiable smtp=info.getModifiableSImpleTYpe();

IModifiableSimpleValueSet msv=smtp.getSVServices().getModifiableSimpleValueSet();
iterate the collectin.. get the iterator and 
change these lines as 
String a = it.next().toString()
msv.put(a,a);

Regards

Bharathwaj

Message was edited by: Bharathwaj R...Code added

Former Member · ‎08-29-2005

Hi ,

You can do the following.

Iterate through the collection

{

IPrivate<ViewName>.I<ValueNode>Element ele = nod.create<Node>Element();

ele.setName(it.next().toString());

wdContext.node().addElement(ele);

}

Regards, Anilkumar

Binding Collection of Objects to display them in DropDownBy.. Control

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