Rendering list items differently based on object

  • Thread starter Thread starter Spondishy
  • Start date Start date
S

Spondishy

This is a bit of a mix between asp.net and c#, but I thought I'd try
here first.

I have a number of objects (imagine products) in an IList that I want
to render in the UI. They all inherit from the same base class. The
individual classes have extra attributes, for example one might have
weight, another color.

I want a generic way to render these in the UI, without the need of a
huge switch statement. Should each object know how to render itself
for instance?

Any implemented examples around the net would be good. Thanks.
 
Spondishy said:
This is a bit of a mix between asp.net and c#, but I thought I'd try
here first.

I have a number of objects (imagine products) in an IList that I want
to render in the UI. They all inherit from the same base class. The
individual classes have extra attributes, for example one might have
weight, another color.

I want a generic way to render these in the UI, without the need of a
huge switch statement. Should each object know how to render itself
for instance?

Any implemented examples around the net would be good. Thanks.
Click to expand...

The question is a classic example of where you should use some form of
polymorphism.

You can either define an interface that each object implements, or the
base class can include a virtual method for rendering that each object
overrides.

A Google search can turn up a wealth of information on both, as far as
examples go.

Pete
 
The question is a classic example of where you should use some form of
polymorphism.

You can either define an interface that each object implements, or the
base class can include a virtual method for rendering that each object
overrides.

A Google search can turn up a wealth of information on both, as far as
examples go.

Pete
Click to expand...

Thanks Pete... I'm fine with polymorphism. Just to add some context. I
have a list of objects that I want to display on an asp.net page and
depending on the object, display differently. I've read some articles
on having a factory create the user controls, but it look messy.
 
Spondishy said:
Thanks Pete... I'm fine with polymorphism. Just to add some context. I
have a list of objects that I want to display on an asp.net page and
depending on the object, display differently. I've read some articles
on having a factory create the user controls, but it look messy.
Click to expand...

I'm afraid there's not anything in your post that suggests a specific
question to answer. If you're having trouble with some ASP.NET-specific
aspect of the problem, I would agree that the ASP.NET newsgroup is a
better place to ask the question.

If you're having trouble with some C#-specific aspect of the problem,
perhaps you could elaborate on what, specifically, is the question you have?

Pete
 
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