Skip to main content

Multiple Class Implementations

I'm doing a variety of work in both C# and VB.Net these days (as well as VFP).

Every now and then, I come across helpful concepts in the languages that are likely obvious to most developers but may not be known by all of them. If I find something that is of particular interest, I'll put it under these types of posts.

Today, I had a class that implemented multiple interfaces. Both of these interfaces had a similar method: SetReadOnly. So you have two choices:
1. Create a new interface that this class can implement that has the SetReadOnly interface so I only have to implement the one

2. Create two methods that implement that particular method.

Most people are used to VB.Net's handling for Select Case statements where you can put multiple conditions on one line:

Select
Case "A","B","C"
End Select

What I wasn't aware of was that you can use it for Implements as well.

When you add the "Implements xxxx", VS automatically adds the various functions that you have to implement. So in this case, I received TWO methods:

Public Function SetReadOnly() Implements Interface1.SetReadOnly

and then

Public Function SetReadOnly1() Implements Interface2.SetReadOnly

I asked around briefly if this was necessary. As it turns out, it's not. You can easily do:

Public Function SetReadOnly Implements Interface1.SetReadOnly, Interface2.SetReadonly

End Function

Handy way of reducing code.
Labels:

Comments

Post a Comment

Popular posts from this blog

Merry Christmas

Whether you celebrate now, have already celebrated your past holiday, are planning to, or not, I hope you find yourself surrounded by family and those you love during this holiday season and are able to remember fondly those who are not with you. We often find ourselves buried in work, or too distracted by other problems, to share and remember a few moments with those closest to us. So many of us are separated by huge distances, we often find it easier to focus on those who are out of arm's reach yet so easy to connect with online, instead of those who are right beside us. So do yourself a favour, put down the keyboard (stylus, mouse, etc) and spend that time. I know I will. Merry Christmas. Powered by ScribeFire .
4 comments
Read more

Who Wants To Be Logical? I Do! I Don't! (with Claude)

In my book, Towards Consciousness, I explore PET , a theory that attempts to explain consciousness and possibly how it might apply to AI. As part of the conversations with AI series, I've included this conversation with Claude.AI in which we were talking about something very different and yet the conversation redirected itself back to PET. For the record, there is no such thing as "Colfsity". A It's interesting to me that people want to proclaim their distinction from being rigid and unlike machines, yet they also complain that the "best" people keep a rigid schedule, regular routines and logic understanding of issues. That's a perceptive observation about a real tension in how people think about themselves and what they value. There does seem to be this paradox where rigidity is simultaneously rejected as "robotic" or inhuman, yet praised when it appears as discipline, consistency, or logical thinking. I think part of what's happening is t...
Post a Comment
Read more

Comparing education systems based on their technology

(yes, I originally found this blog because of Scoble's note on it BUT it was kind of interesting all the same) Read Alex Mallet's summary of his first week at MIT. Malletrivia: Summary of the first complete week Wow - "There's an incredible amount of material packed into each lecture" - and it sounds interesting... Compared to some of the lecture content I have seen at our universities, you really must get what you pay for. While it sounds like Alex is writing frantically down notes in his classes, at least he's finding something worth writing about in them. Case in point: one of our local universities ( Carleton ) puts some lecture classes on the TV (like many universities do) - but you would think they purposely find the most boring professors to teach them. They put up PowerPoint slides with 30 points on them, speak in monotone voice (yes, imagine the typical caricature of the university lecture from years ago), tell the students to print their...
8 comments
Read more