Multiple lead selection in a table

[Former Member]

Hi.

For a table ,to get the lead selection for a selected row, I used to get it by

 int ls=wdContext.nodeABC().getLeadselection() 

so based on the ls value i get the current element and perfom my logic.

I have set the property for the ui element table "Selection Mode"=Multi.

How do I do the same in case more than 1 row is selected (multi row selection)?

How to get the reference for the element in this case?

Regards

Bala

[Former Member · Accepted solution]

Read the Javadoc for IWDNode:

  /**
   * Returns whether the element at the given index is selected. Does not look
   * at the lead selection.
   * 
   * @param index the index of the element
   * @return true if the element is selected.
   */
  boolean isMultiSelected(int index);

In release 7.20 there exists a new API.

Armin

[Former Member · Accepted solution]

Hi Armin.

Thanks for your reply.

As per your reply, isMultiselected method will give you if the element at the given index is selected or not.

But my requirement is I need to delete the rows from the table based on the rows selected. If a single row is selected, then I can do it using lead selection and get the reference for the element and remove the element using

 removeElement(IWDNodeElement element) 

How can I achieve(deleting the rows from the table) if multiple rows are selected?

Thanks

Bala

[Former Member · Accepted solution]

Hi,

    IWDNode nodeTable = wdContext.nodeTable();
    for (int i = 0; i < nodeTable.size(); i++) {
    	if (nodeTable.isMultiSelected(i)) {
    		IWDNodeElement tableElement = nodeTable.getElementAt(i);
		nodeTable.removeElement(tableElement);
    	}
    }

Hope it helps,

Daniel

[Former Member · Accepted solution]

Hi Daniel.

It works. Can you tell me if the same kind od approach is available/applicable for a recursive node.

Thanks

Bala

Edited by: Balachandar P on Feb 4, 2010 6:22 AM

[Former Member · Accepted solution]

You must loop backwards from node.size() -1 to 0. Otherwise the removal of an element changes the index of the following elements in the loop.

Armin

[Former Member · Accepted solution]

True. Or use (i--) when removing. It should work as well.

[Former Member · Accepted solution]

That would not help. You have to iterate through the element list such that deleted indices are not visited again.

Armin

[Former Member · Accepted solution]

Hi Armin,

Im curious, and you would be able to answer.. can you tell me a good reason why removeElement does not accept and int? - The underlying implementation does exactly that (and it checks for element.node() but this is completely irrelevant) - I know that you were not one of the designers of WDP but I guess you might know a couple.. 😛

Cheers,

Daniel

[Former Member · Accepted solution]

"I know that you were not one of the designers of WDP"

How can you know?

Armin

[Former Member · Accepted solution]

I was being sarcastic..

Daniel

[Former Member · Accepted solution]

Nevertheless. I will ask the designer of the context API why it is that way.

Armin

[Former Member · Accepted solution]

Releases >= 7.1 have:

http://help.sap.com/javadocs/nwce/current/wdr/com.sap.wdr/com/sap/tc/webdynpro/progmodel/api/IWDNode...

Armin

[p330068]

Yes, Armin is correct.

Take first lead selection and put on the other(XYZ) node element, then check for another lead selection and put on the other(XYZ) node element and so no.

Arun

[Former Member]

"Take first lead selection and put on the other(XYZ) node element, then check for another lead selection and put on the other(XYZ) node element and so no."

This sentence makes no sense to me. There is only one lead selection in a node.

Armin

[p330068]

Hi Armin,

For finding multiple lead selection(or multi row selected), we need to iterate through node to find 1st lead selection and again n again we need to iterate through node for finding next selected row - correct

For selected rows, we need to store somewhere for further processing.

Hope that is fine now

Thanks

Arun Jaiswal

[Former Member]

There don't exist multiple lead selections.

Armin

[Former Member]

It works for a normal node, but need to know how recursive node works