calling function with (object sender , eventargs )

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hi I have an application that hs been written with C#

and it has a class that it contains a function(timer with this arguments object sender, EventArgs e) and now

I want to call this function by another class thus i create an instance of this class
when i call this function with timer_Tick(null , eventargs.empty )
or (object sender ,eventargs.empty )

for arguments "object sender , event args e"
error has occured?

anybody have a solution?
thanks

Posted 2-Sep-11 22:00pm

resaneh

Updated 2-Sep-11 22:28pm

RaviRanjanKr

v2

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Oshtri Deka 3-Sep-11 4:48am

Give us some code to see what exactly you had in mind.

2 solutions

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OriginalGriff · Answer 1 · 2011-09-02T22:06:00

Don't call such functions directly: they are Event handlers and should be called by the framework at the appropriate time.
Instead, create a private method which you call, and which the event handler calls.

That way you do not need to provide the sender or EventArgs. ~~However, there is no EventArgs.Empty anyway!~~

Be aware though that what you are trying to do it probably wrong, and may be dangerous later, when you learn about threading.

I suspect that you actually want to create an event in one class, and subscribe to it in the other - but I don't know what you are trying to achieve, so I can't advise you how to do it.

[edit]Removed error: there is indeed an EventArgs.Empty (thanks GParkings) - OriginalGriff[/edit]

Arun Kumar K S · Answer 2 · 2011-09-02T23:35:00

Solution 2

instead of directly calling such function create one event using delegate and call in appropriate time

Posted 2-Sep-11 23:35pm

Arun Kumar K S