Table UI element - Not reflecting thru dataSource property

[Former Member]

Hi All

I have the following requirement which i need to display as Tree structure

->Q

->I

->J

->P

->T

->P1

->D

->P2

->P3

->W

->WP

->F

->FT

->I

->In

->P5

->Jo

I created the context structure in the above format and i binded the same thru DataSource property of Tree UI element , but it is not reflcecting the changes in the view as per the above format, it is giving blank structure in the View at runtime

Thanks

Trisha Rani

Edited by: Trisha Rani198 on May 21, 2009 1:08 PM

[Former Member · Accepted solution]

Hi,

In your posting tree is not properly visible.

"Hierarchies defined in the context can be visualized using the Tree UI element. The hierarchy to be displayed is defined in the context".

As above statement states: You need to have context structure in the same format as you want the tree to look like,

For example, if you need 2 levels in tree--you need to have 2 nodes: A and B, B being sub node of A.

regards,

ganga

[Former Member · Accepted solution]

Hi Ganga

My question is according to the context structure the tree is not displaying for me when i set the context structure in the dataSource property of the Tree UI element,

if we want to display the context structure as we set, do we need to set any specific property to display the tree structure according to the context structure.

Please reply the same

My tree structure as follows

1 .A

2. B

2.1 B1

2.2 B2

2.3 B3

2.4 B4

3 C

3.1 C1

3.2 C2

3.3 C3

3.4 C4

4 D

i want to display the tree structure in the above format and i also create the context struture in the same format but when i set the context strucuture to the dataSource then it is not displaying anything in the Tree of an View.

Please let me know how to achieve this??

Thanks in advance

Thanks

Trisha

[Former Member · Accepted solution]

Hi,

To create the tree structure in WebDynpro you need to follow the standard procedure.

go through the below links:

/docs/DOC-8061#32 [original link is broken]

https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/library/user-interface-tec...

In the above examples they filled the dataSource nodes with data from file system.

You can change that code according to your requirement.

1. You need to create a parent context node with necessary attributes like (isExpaned, isLeaf, ChildernLoaded, ParentId..etc)

2. Need to create a recursive child node

3. In the init method fill the parent context node with all the root parents.

4. In OnAction of the root parent item selection fill the child data in child recursive node.

Just go through the above sample code & document.

Regards,

Charan

[Former Member · Accepted solution]

Hi Trisha

Try to see this document to help you:

[https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/f0ec6622-8da5-2a10-349b-868b6a553efa]

[https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/47ce9b90-0201-0010-59b5-f70826824eee]

[https://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/de59f7c2-0401-0010-f08d-8659cef543ce]

[http://help.sap.com/saphelp_nw04s/helpdata/en/c2/abfceffbacd24185ec7af8a3a2e76a/frameset.htm]

Regards

Marcos

[Former Member · Accepted solution]

Context
+ Tree (node, c=0:n)
   + text (string)
   + expanded (boolean)
   + hasChildren (boolean)
   + Children (recursive node -> Tree)

Data binding:

Tree.dataSource = Tree
TreeNodeType.dataSource = Tree
TreeNodeType.expanded = Tree/@expanded
TreeNodeType.hasChildren = Tree/@hasChildren
TreeNodeType.text = Tree/@text

Populate context:

private ITreeElement node(ITreeNode parent, String text, boolean expanded, boolean hasChildren)
{
  ITreeElement e = parent.createAndAddTreeElement();
  e.setText(text);
  e.setExpanded(expanded);
  e.setHasChildren(hasChildren);
  return e;
}

ITreeElement a = node(wdContext.nodeTree(), "A", false, false);
ITreeElement b = node(wdContext.nodeTree(), "B", true, true);
node(b.nodeChildren(), "B1", false, false);
...
node(b.nodeChildren(), "B4", false, false);
ITreeElement c = node(wdContext.nodeTree(), "C", true, true);
node(c.nodeChildren(), "C1", false, false);
...
node(c.nodeChildren(), "C4", false, false);
ITreeElement d = node(wdContext.nodeTree(), "D", false, false);

Armin

[Former Member · Accepted solution]

Hi Armin

Thanks for your rely

if yo have any document on the same then it would be the great help to me and i will clear idea on this solution

Thanks

Trisha

[Former Member · Accepted solution]

The other replies gave you tons of links and SDN has tutorials etc. What do you expect more?

Armin