Dynamic Buttons

[Frinavale]

Why would you ever want to create a button dynamically?
A button seems like a pretty concrete thing to have in an application; it requires you to implement code that handles its events....and usually we want a button to perform a specific task (really I can't think of a case where this doesn't happen).

So why would anyone want to create a button dynamically?

-Frinny

[r035198x]

Why would you ever want to create a button dynamically?
A button seems like a pretty concrete thing to have in an application; it requires you to implement code that handles its events....and usually we want a button to perform a specific task (really I can't think of a case where this doesn't happen).

So why would anyone want to create a button dynamically?

-Frinny

I always keep a method like makeButton ready though, there's a bit you have to do to initialize a button in Java and often I fing that I don't want to write the same thing over and over again.

[Frinavale]

I always keep a method like makeButton ready though, there's a bit you have to do to initialize a button in Java and often I fing that I don't want to write the same thing over and over again.

I can see where it could come in handy for a Java application...b ut you still hard code the method that handles it's "click" event.

It just seems that lately I've been encountering questions in .NET where a user creates a button on the fly and then they get stuck and ask us how to dynamically supply code for said button.

I wonder why the don't just create a button and make it visible or invisible depending on whatever their logic dictates.

It's not like Java where you have to declare the button, and then set up where it should be in some box that functions as your window (can't remember what it entails but I remember it being painful to do)...you just drag the button onto a form and go from there.

Isn't there some sort of Java editing software out there that is something like Visual Studio that lets you do this too?

-Frinny

[Motoma]

Why would you ever want to create a button dynamically?
A button seems like a pretty concrete thing to have in an application; it requires you to implement code that handles its events....and usually we want a button to perform a specific task (really I can't think of a case where this doesn't happen).

So why would anyone want to create a button dynamically?

-Frinny

If you have a undetermined dataset with an unknown number of elements, couldn't it be useful to be able to dynamically build buttons?

The only real reason why someone would be caught up on building handlers is if they did not use an object oriented approach to building the buttons. If I were to do something like this, I would build (or extend) a button class to include the related data elements, handler specifics, position, and style information.

[Frinavale]

If you have a undetermined dataset with an unknown number of elements, couldn't it be useful to be able to dynamically build buttons?

The only real reason why someone would be caught up on building handlers is if they did not use an object oriented approach to building the buttons. If I were to do something like this, I would build (or extend) a button class to include the related data elements, handler specifics, position, and style information.

That's why the DataGrid / GridView control was created :)

[Motoma]

That's why the DataGrid / GridView control was created :)

Yes, however the DataGrid/DataView objects are very restrictive in the way they allow one to present data.

[Frinavale]

Yes, however the DataGrid/DataView objects are very restrictive in the way they allow one to present data.

And edit/delete/update the data in the dataset.....

[Frinavale]

I guess this is a good indication that I should get cracking on that DataGrid/GridView article.

Hehe

[Motoma]

I guess this is a good indication that I should get cracking on that DataGrid/GridView article.

Hehe

Let me know if you want any help with content or proofreading.

[r035198x]

Isn't there some sort of Java editing software out there that is something like Visual Studio that lets you do this too?

-Frinny

Unfortunately there's lots of them these days. More often than not though, I'd have one method called for all my button clicks (or for a set of similar actions) and then it would be easy to add more functionality if my buttons were made "dynamicall y" especially in cases where the interface itself is dynamic and I'm showing and hiding buttons.

It is also possible to over-do-it though ...