Dynamic UIElement Generation at Runtime

Question

Hi everybody,
My problem is, that I want to create a number of elements at runtime. The number depends on the records in the database. So when I got 30 records in my database. I want to create 30 elements. So far, so good.
The connection through the WebServices works very well.
Now I got my problems with display the elements. I want to use the tray element.
Now my Code looks like this:
//... much code before! :-)
//here you get the number of affected rows
length = req.getResponse().getResultAsArray().length;
//dynamically create trays, after the number of selected rows
for (int i = 0; i < length; i++)
IWDTransparentContainer transparent = (IWDTransparentContainer) view.createElement(IWDTransparentContainer.class, "TC."+i);
IWDTray tray = (IWDTray) view.createElement(IWDTray.class, "tray."+i);
//I don't want any more options at the moment ;-)
tray.setEnabled(true);
tray.setExpanded(false);
transparent.addChild(textView);
transparent.addChild(tray);
So but nothing is shown on the screen.
Now there exists the method setVisible(), I think this is the key to solve my problem. But this method expects a WDVisibility parameter and I don't know what I must type in.
I tried it with com.sap.ide.webdynpro.uielemtdefinitions.Visibility, it doesn't work.
Then I created a context attribute with this type!
doesn't work, too.
My you can help me?
Kind Regards,
Andre

Answer 1

Hi,
for (int i = 0; i < length; i++)
<b>IWDTransparentContainer container = (IWDTransparentContainer)view.getElement("RootUIElementContainer");</b>
IWDTransparentContainer transparent = (IWDTransparentContainer) view.createElement(IWDTransparentContainer.class, "TC."+i);
IWDTray tray = (IWDTray) view.createElement(IWDTray.class, "tray."+i);
//I don't want any more options at the moment
tray.setEnabled(true);
tray.setExpanded(false);
transparent.addChild(textView);
transparent.addChild(tray);
<b>container.addChild(transparent);</b>
Hope it helps,
Regards,
Nagarajan.
Message was edited by: Nagarajan Kumarappan