Events in BSP

hi all,
I am new to working with BSPs.
I have used two events onInitialization and onInputProcessing.
Can anyone explain to me the use of other events, viz. :-
onCreate, OnDestroy, OnManipulation, OnRequest.
Is there any documentation avaiable about these events ?
thanks in advance,
Ashish

OnCreate
OnCreate is called once when the page is first created (stateful mode), and performs a once-off data initialization or object creation.
OnRequest
OnRequest is called whenever a request is made for a particular page and is used to restore the internal data structures from the request. This is important when working in stateless mode.
OnInitialization
This event handler is mainly used for data retrieval. For example, it allows data required for displaying the BSP to be read from the database. It can also execute any program.
OnInputProcessing
This event handler checks and processes user input. It can also define navigation, that is, whether the user should be taken to the same page or another when the BSP is called.
OnManipulation
You can use this event handler to manipulate the HTTP data stream later.
OnDestroy
This event handler is available for special functions.
Refer the below link for more detail..
http://help.sap.com/saphelp_nw04/helpdata/en/c8/101c3a1cf1c54be10000000a114084/frameset.htm
Raja T

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Message was edited by: Jothivenkatachalam.P

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ST22: OBJECTS_OBJREF_NOT_ASSIGNED

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>>>>> IF event->id = 'BZUR' AND event->event_type = 'click'.
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regards, matthias
ps: this is WAS 700
SAP_ABA 700 0010 SAPKA70010
SAP_BASI 700 0010 SAPKB70010
pps: I did some more testing and noticed taht this dump occurs when hitting the submit Button, which is not htmlb but mere html with some css formats:
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Message was edited by:
 Matthias Kasig
Message was edited by:
 Matthias Kasig

Hi Matthias,
I guess as in your case the form is not submitted by the respective JavaScript libraries of HTMLB that some hidden inputfields that contain more information about the type of the event are not filled and therefor the event-manager cannot create the event. To circumvent the dump you can just check whether the event is bound.
if event is bound and .....
In case the event is not bound (could not been instantiated) the rest of the if-clause will not be checked.
The better option from my point of view is to proceed as follows:
Use the bsp-tag htmlbEvent on the layout to get the javascript for executing an event generated:
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"Checkbox was clicked
WHEN .......
"Some other events
ENDCASE.
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Best Regards
Michael

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