SRM event handler creation

Hi experts,
we are trying to configure a questionnaire on the SRM.
We would like to know if it is possible to put control on fields (example: field has to be numeric and of 5 digits. If the vendor writes only 4 digit the quastionnaire should not be sent). Is it possible to create a control by using event handler? How and where do I have to write the function?
Thanks in advance,
Regards,
Riccardo

Hi Chandra,
when I have to deal with dependent values I normally do the following:
Raise a Server Side Event in GET_P method as you did
In the GET_V method I build up the value help and store it in a global variable on the context node. In the GET_V you have got access to the current entity with collection_wrapper->get_current() --> meaning you can always have the correct value of all the fields and read dependent on them.
In the implementation class create an event handler that clears the global variable for the dependent value help whenever a new value is selected in the leading field.
I suppose you have got a similar setup.
One possibility to circumvent your problem is to skip the step with the global variable. Just shoot the server side event. This leads to a server roundtrip and the valuehelp for the dependent field is calculated again, based on the updated value of the leading field.
However, this method is not very good for performance! Thus I would normally keep away from it.
Concerning your problem with the wizard. It is correct that you have to have the view created with the wizard to be able to use it later on. On copied views the wizard does some redefinitions of common methods and it does complain if they are not exactly as it expects them.
For event handlers I believe this should only be the DO_HANDLE_EVENT in the parent class of your IMPL. Meaning if you inherit from a SAP view inheritance is as follows: SAP class --> SAP class _IMPL --> Your class --> Your class _IMPL
The DO_HANDLE_EVENT would have to be in the Your class.
An easy way would be recreating the view using the wizard (be sure to restart the component workbench after this).
Another is create the event handler manually. Copy an existing EH_ONXXX method, and add a CASE statement into the DO_HANDLE_EVENT that calls this copied method.
cheers Carsten

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For event handlers I believe this should only be the DO_HANDLE_EVENT in the parent class of your IMPL. Meaning if you inherit from a SAP view inheritance is as follows: SAP class --> SAP class _IMPL --> Your class --> Your class _IMPL
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Attachments:
Serial Port(stable release)1.2.vi ‏113 KB
Init.vi ‏32 KB
Write.vi ‏44 KB

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Edited:
Sorry for weird display. I have to get used to the new image gallery feature of the forum (and will use "image to the left" only on rare conditions). Btw. the preview looks different to the actual post
Message Edited by GerdW on 05-28-2009 06:59 AM
Best regards,
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the button2 in panel's constructor hides the one from Game class
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SRM event handler creation

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