How to define onSelect action in code?

Question

I created a dropdownbykey using dynamic way like below.
IWDDropDownByKey myDropDown = (IWDDropDownByKey) view.createElement(IWDDropDownByKey.class, "myDropDown ");
myContainer.addChild(myDropDown);
Now I want to add the code to set the onSelect action event for this drop down.
Does anyone knows and can give me this line of code?
Thanks!

Answer 1

Hi
do the following to create a dropdown by key in the view.
first write the following code in the wddomodifyview()
this will create a new dropdown ui element in the tray havin id "tray".
ddk_id is the id of the dropdown created
now bind its selected key property to the desired attribute
then you can set the onselect property to one of the actions created already in the view.
then write the code for what you want on selecting a particular key in the eventhandler of this action
as showm below:
write this code in wddomodifyview()
if(firstTime)
   IWDTray mytray = (IWDTray)view.getElement("Tray");
   IWDDropDownByKey ddk = (IWDDropDownByKey)view.createElement(IWDDropDownByKey.class,"ddk_id");
   IWDAttributeInfo attrinfo = wdContext.getNodeInfo().getAttribute("ddk");
   ddk.bindSelectedKey(attrinfo);
   *ddk.setOnSelect((IWDAction)view.getAction("SelectAction"));*   mytray.addChild(ddk);
Write the desired code for the action in the eventhandler as shown below
//@@begin javadoc:onActionSelect(ServerEvent)
  /** Declared validating event handler. */
  //@@end
  public void onActionSelect(com.sap.tc.webdynpro.progmodel.api.IWDCustomEvent wdEvent )
    //@@begin onActionSelect(ServerEvent)
    //write the code here
    //@@end
thanks hope it is clear
Sarbjeet Singh Gill