Freely Programmed Value Help in the WebDynpro application (WebDynpro for ABAP)

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Create an attribute...

Attribute name INPUT_1 and declare type as STRING...  

Go to Attributes tab and create an attribute for the interface IF_WD_VALUE_HELP_LISTENER as VALUE_HELP_LISTENER (as shown below)

Go to Events tab, you will see two events which are automatically created as soon as you add the controller WD_VALUE_HELP in the properties tab and to that add another event VH_DATA_SELECTED and check that interface check box..

Go to Methods tab and there you will see a method SET_VALUE_HELP_LISTENER which is automatically generated...  

Double click on that method and write the following code as shown below...

                            WD_THIS->VALUE_HELP_LISTENER = LISTENER.

Then go to the view V_MAIN and create three elements LABEL, INPUTFIELD and BUTTON...  

Go to context tab of that view and drag and drop the interface node ND_TEXT from the component controller...

Click here to continue...