Tree and Table UI element with same data source (context)

[Former Member]

Hello,

I am trying to build an application which shows an tree and an table UI which shows additional information to the selected tree node. (like Windows Explorer)

I am using an context like this:

Class - - - - - - - - -- (Mapped value Node)

- SubClass - - - - - (Recursion Node)

- id - - - - - - - - -- - -(Value attribute)

- name - - - - - - - - -(Value attribute)

.

.

For the tree I am unsing this event handler

	public void onActionClassNodeSelected(com.sap.tc.webdynpro.progmodel.api.IWDCustomEvent wdEvent, de.aequitas.sap.wd.java.easyclass.wdp.IPrivateEasyClassView.IClassElement element )

wdModifyView contains this:

public static void wdDoModifyView(IPrivateEasyClassView wdThis, IPrivateEasyClassView.IContextNode wdContext, com.sap.tc.webdynpro.progmodel.api.IWDView view, boolean firstTime)
  {
    //@@begin wdDoModifyView
	IWDTable pictureTable = (IWDTable) view.getElement("PictureTable");
    if(firstTime)
    {
    	IWDTreeNodeType node = (IWDTreeNodeType) view.getElement("TreeNodeType");
    	node.mappingOfOnLoadChildren().addSourceMapping("path", "element");
    	node.mappingOfOnAction().addSourceMapping("path", "element");
    }

I think I could use now

pictureTable.bindDataSource()

, but do not know where to get the needed parameter.

Thank You

Bernd

[Former Member]

Hi,

with the code

//Your existing code
IWDTable pictureTable = (IWDTable) view.getElement("PictureTable");
 
 
//use the following code for binding
IWDNodeInfo nodeInfo = wdContext.nodeClass().getNodeInfo();// Assuming class Node is bound to table.
pictureTable.bindDataSource(nodeInfo);

I have the problem that the table is showing permanent the nodes of the first level. If I select an element in the tree, the table should show the content of this element (second level), but it is still showing the top level information.

Thank you

Bernd

[Former Member]

Are the detail data all available in the node to which the tree is bound? In the Windows Explorer it's more like a separate node for the files of the currently selected folder.

Providing the details for the currently selected class could be implemented like this:

Context
+ Class
   + SubClass
      - id
      - name
+ Details (supply function=supplyDetails)
   - attribute1
   - attribute2

In the selection handler, just call

wdContext.nodeDetails().invalidate();

which triggers the supply function. Implements the supply function such that it fills the "Details" node with the details for the currently selected tree node (=tree selection of node "Class"):

void supplyDetails(...)
{
  IClassElement selectedClass = (IClassElement) wdContext.nodeClass().getTreeSelection();
  /* fill node with details for selected class... */
}

Armin

[Former Member]

>

> Hello,
> 
> I am trying to build an application which shows an tree and an table UI which shows additional information to the selected tree node. (like Windows Explorer)
> 
> I am using an context like this:
> Class - - - - - - - - --  (Mapped  value Node)
>  - SubClass - - - - -  (Recursion Node)
>  - id - - - - - - - - -- - -(Value attribute)
>  - name - - - - - - - - -(Value attribute)
>  .
>  .
>   
> For the tree I am unsing this event handler   
> 
	public void onActionClassNodeSelected(com.sap.tc.webdynpro.progmodel.api.IWDCustomEvent wdEvent, de.aequitas.sap.wd.java.easyclass.wdp.IPrivateEasyClassView.IClassElement element )
>   
> wdModifyView contains this:
> 
>   
public static void wdDoModifyView(IPrivateEasyClassView wdThis, IPrivateEasyClassView.IContextNode wdContext, com.sap.tc.webdynpro.progmodel.api.IWDView view, boolean firstTime)
>   {
>     //@@begin wdDoModifyView
> 	IWDTable pictureTable = (IWDTable) view.getElement("PictureTable");
>     if(firstTime)
>     {
>     	IWDTreeNodeType node = (IWDTreeNodeType) view.getElement("TreeNodeType");
>     	node.mappingOfOnLoadChildren().addSourceMapping("path", "element");
>     	node.mappingOfOnAction().addSourceMapping("path", "element");
>     }
> 
> I think I could use now 
pictureTable.bindDataSource()
, but do not know where to get the needed parameter.
> 
> Thank You
> Bernd

Hi,

Following is the code to do this

//Your existing code
IWDTable pictureTable = (IWDTable) view.getElement("PictureTable");


//use the following code for binding
IWDNodeInfo nodeInfo = wdContext.nodeClass().getNodeInfo();// Assuming class Node is bound to table.
pictureTable.bindDataSource(nodeInfo);

Regards

Ayyapparaj