Add an Event in Web dynpro for Cancel option

Question

Hi Everyone,
I have a scenario where in which , I have a search help option and when users hits of search help a window pops up and when user selects any it populates the data into feild.
Now that i want to add a cancel button in the F4 window .
How can  go about and do this.
Please provide me step by step approach as most of the web dynpro I am not aware of... i am new and learning on my own.
Regards,
Raj

Answer 1

Kandaraj,
Using window instance you can implement the cancel functionality,
Create a context in your component controller "WindowInstance" with the type type     "com.sap.tc.webdynpro.services.session.api.IWDWindow"
User this method in you component controller,
/**********************COMPONENT CONTROLLER***************************
public void showpopup( )
IWDWindowInfo winInfo = wdComponentAPI.getComponentInfo().findInWindows("PopupWin"); // PopupWin -> Name of your window
    IWDWindow win = wdComponentAPI.getWindowManager().createModalWindow(winInfo);
    win.setWindowPosition(300,150);
    win.setTitle("Your Account Infomation");
       win.setWindowSize(200,200);
    wdContext.currentContextElement().setWindowInstance(win);
    win.show();
call the method from the View
*************Create a Window for Popup*************************
Create a View for New Window
Create a context in your component controller (Popup Window) "WindowInstance" with the type type     "com.sap.tc.webdynpro.services.session.api.IWDWindow"
Open the View of Popup Window
Create a Button and action for the button
Put this code inside the action method:
  IWDWindow win = wdContext.currentContextElement().getWindowInstance();
    win.close();
Ram