I'm trying to call a function, and VS gives me an error (red underline), and i have the option to "generate method stub". What is this?
The generate method stub will generate you a method which looks exactly like you've written it, with the same parameters. Probably are getting this error because you've misspelled the method or because it is in a different namespace.
It means that you're trying to call the function incorrectly; check to make sure you've spelled the method name correctly, and that you're passing it the proper number and types of arguments.
It means you typed a wrong signature, so VS assumes this method doesn't exist. By using the shortcut VS can help you create the method as a stub (i.e. the signature, then you have to fill out the implementation).
ahh I had
method(button.Tag);
and a declaration of
void method(int tag)
so i fixed it with
method(int.Parse(button.Tag.toString()));
i tried that before, but I forgot to put "toString", since I thought it was already an int... stupid little mistake. thx guys
Related
I'm writing a function that iterates over the methods on a given struct and binds the methods to handlers. I would like to skip over internal methods if possible. I'm not sure if this is possible to do so explicitly - I reviewed the documentation for the reflect package and I didn't see a means to detect if a given Value is an internal method. I know I can get the method's name, and then check if it starts with a lowercase character but I'm not sure if there's a kosher way to accomplish this. It's also possible that the internal / public boundary really only exists at compile time anyways, so there really isn't even a way of knowing this beyond the method's name. In either case I'd like to know for sure. Thanks!
The reflect package will not give you unexported methods via Type.Method. Pretty much, if you can see it via reflect, it is already exported.
See https://play.golang.org/p/61qQYO38P0
Is it possible to get an instance of java.lang.reflect.Method by using the new method reference feature of Java 8?
That way I would have a compile time check and refactoring would be also easier. Also, I wouldn't need to catch the exceptions (which shouldn't been thrown after all).
Short answer: No.
You will get a lambda of that method, not a java.lang.reflect.Method. You do not know the name of the method. Just as you can not have a reference to a "property" of a java bean.
You can have a reference to the getter or setter but that is also a lambda and you do not know the actual name.
In any case you'd have to provide the name as a String and that can't be checked by the compiler. I also tried this but failed. It simply can't be done unless you write something that checks the javacode/bytecode. But there are tools that do that.
Maybe the Criteria API could be used for that, but it depends on the requirements.
http://docs.oracle.com/javaee/6/tutorial/doc/gjitv.html
There you'd have a SingularAttribute or similar field on a "metamodel" and then the regular java compiler can check the (generic) type of it.
I have been trying to use BLToolkit to activate an Oracle stored procedure which takes a User Defined Type as an argument as an output parameter and changes it.
I have managed to do this on a primitive type, and and also by manually calling SetSpCommamd however I would like to use the abstract class generation method but can't seem to get it to work.
I'm pretty sure the code I wrote is correct (works for the primitive). When debugging I found the SetSpCommamd called by the generated code gets wierd parameters instead of the ones I provided as opposed to when I call the method manually (the it gets the exact parameters I'd like). I wish I could see the code generated by the reflection emit to see what's wrong there.
Can anyone please help me figure out why this is not working?
Found the problem (Potentially a bug in BLToolkit).
BLToolkit does not pass the UDT Class as is to the procedure (instead it tries to flatten it or something and pass the insides of the object). I Changed the object to a Struct instead of a Class and that fixed it.
Later on I also changed it back to class and made a patch in the 'IsScaler()' method in BLToolkits code.
I will report this as a Bug I hope they fix it.
Anyone know how to get the sender class/module in ruby?
caller[0] is helpful to derive the filename and linenumber sending.
But knowing the class would be helpful. Can't find it any searches?
This would be impossible. You shouldn't be specialising your behaviour in a method based on the calling class anyway.
Think about it this way - the caller could be an anonymous function (proc) created in one class, then given to another one and invoked from a third place. You wouldn't get anything useful.
Instead, I'd look at what you're trying to achieve here, and think of another way to get there! :)
Check out this gem: https://github.com/asher-/sender
I know I can figure out the name of the method as its being executed, just wondering if there is a way from the setup method. I guess an attribute method would work but from the setup method it would be the best.
EDIT NUnit
I know this is going to sound negative, but don't do it! :-)
The idea behind the setup method is that it executes something required by every test, which means that it doesn't matter which test is being executed, so you don't need to know the name of the method.
If you are after different data used in initialisation, then call a separate method with the data passed as a parameter from your test method.
If you really want what you are asking for, then you may need a different method that takes the name of the current method as a parameter and call that from your test method.