Can I assign a static method to the onclick event?

I can't do that in the inspector. I tried to attach a static method via c# like this:

Code (csharp):

1. m_NextButton.onClick.AddListener(() => {SomeClass.StaticMehod();});

No error or warning showed up, but the static method didn't get called when I clicked on the button.
Did I do it wrong? or could I even do that?

 

Get rid of the double parentheses after .StaticMethod(). This is invoking it.

 

Thanks for replay. but after deleting those parentheses, unity spits out errors: error CS0201: Only assignment, call, increment, decrement, and new object expressions can be used as a statement.

 

I'm not sure about the lambda syntax in this case, but this should work:

Code (csharp):

1. m_NextButton.onClick.AddListener(delegate{SomeClass.StaticMehod();})

 

That did not spit any error, but the static method still didn't get called.
I set a breakpoint before AddListener call, it showed that the field "m_OnClick" of the Button is not set to any instance (Object reference not set to an instance of an object). any idea?

 

There doesn't seem to be anything wrong with your syntax as far as I can tell. Try it the old-fashioned way. Make a non-static function, assign it as the listener. Verify that it is being called with a debug log. Then have it call the static function.

 

It turns out it doesn't work with non-static function either. I must did other thing wrong.
I set a breakpoint before AddListener call, it showed that the field "m_OnClick" of the Button is not set to any instance (Object reference not set to an instance of an object). any idea?