Handling events in c#

hello,
Im getting started in SAP business one , and i have to program an add_on using c# and the API of business one...
I created a form vi the UI API and i put some items ...
my probleme is that im getting started with c# too , and i would like to have samples written in c# so it can help me to handle events...
thank you...

Hi Ola,
To handle item (or menu) events in C# events you have to do this:
1. implement a handler:
private void _itemHandler(string FormUId, ref SAPbouiCOM.ItemEvent pVal, out bool BubbleEvent)
2. connect to the event sink:
theAppl.MenuEvent += new SAPbouiCOM._IApplicationEvents_MenuEventEventHandler(this._menuHandler);
theAppl.ItemEvent += new SAPbouiCOM._IApplicationEvents_ItemEventEventHandler(this._itemHandler);
HTH,
Frank
PS: What do you think about getting trained (SAP Business One, SAP Business One SDK, C# (?))?
Please note that there's a lot of information available on SAP Service Marketplace (including eLearning for SAP Business One, but no C#...): On SMP go to the Education page and select a curriculum...

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cebailey wrote:
Here's a version with Panel > OwningVI > Key Down selected in the nodes that register events. It seems to do what I want. It acts on keystrokes that occur when the cursor isn't even over the parent's window, which is good in my situation. I made these choices by experimenting - is this a good approach, if I want to act on all the keystrokes that occur when the parent VI has focus?
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That's a valid way of doing it, and I'm assuming that this is intended to be a test case. As you noted you have a large project, so I don't know what your overall architecture is, or how you intend to use this technique, so I can't really say whether it's a "good" approach. It's an approach.
Say, I should have said this before, but you have to be pretty good to answer the question somebody should be asking, especially in brief forum postings.
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Handling events in subvis - think this should work but it doesn't.

In part of a large project I need to handle key down events, but elsewhere I need to handle them differently and want to be able to dynamically register and unregister them in each location. I also want to be able to put one of the event handlers in a subvi. To quote the Help system, "Dynamically Registering Events: With dynamic registration, you can handle events in a subVI rather than only in the VI where the events are generated."
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Attachments:
KeyDnEventHndlrSubVI.vi ‏14 KB
ViThatHandlesEvent.vi ‏22 KB
ViContainingSubviThatHandlesEvent.vi ‏18 KB

cebailey wrote:
Here's a version with Panel > OwningVI > Key Down selected in the nodes that register events. It seems to do what I want. It acts on keystrokes that occur when the cursor isn't even over the parent's window, which is good in my situation. I made these choices by experimenting - is this a good approach, if I want to act on all the keystrokes that occur when the parent VI has focus?
As you noted, this will have the event structure respond to keypresses whenever the parent VI is active. You can simplify the subVI by simply wiring the "VI Refnum" terminal directly to the Register for Events node. Getting the Panel, and then the Owning VI simply gets you back to where you started.
That's a valid way of doing it, and I'm assuming that this is intended to be a test case. As you noted you have a large project, so I don't know what your overall architecture is, or how you intend to use this technique, so I can't really say whether it's a "good" approach. It's an approach.
Say, I should have said this before, but you have to be pretty good to answer the question somebody should be asking, especially in brief forum postings.
Thanks for the compliment. It's just a matter of seeing a lot of code and a lot of questions. I'm only a teenage pup compared to the real veterans on this board.

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Hi
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EVENTS IN ALV OOPS
hope you got your solution
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