ArrayList storing objects of only one type

[bg_ie]

Hi,

I currently use ArrayList to store a set of objects all of which have
the same type. The reason I use ArrayList is because it allows me Add
new items to the array. Should I be using something other than
ArrayList to serve this purpose? Its just that i have to cast my
objects each time I access them, as follows -

ArrayList xmlElements = new ArrayList();

xmlElements.Add (doc.CreateElem ent("Test"));
doc.AppendChild ((XmlElement)xm lElements[0]);

Thanks,

Barry.

[Joanna Carter [TeamB]]

<bg***@yahoo.co ma écrit dans le message de news:
11************* *********@n76g2 00...legr oups.com...

| I currently use ArrayList to store a set of objects all of which have
| the same type. The reason I use ArrayList is because it allows me Add
| new items to the array. Should I be using something other than
| ArrayList to serve this purpose? Its just that i have to cast my
| objects each time I access them, as follows -

IF you are using .NET 1.1, create a typesafe wrapper class; if you are using
..NET 2.0, use the generic List<Tclass.

Joanna

--
Joanna Carter [TeamB]
Consultant Software Engineer

[Jon Skeet [C# MVP]]

On Mar 29, 8:02 am, [e-mail] wrote:

I currently use ArrayList to store a set of objects all of which have
the same type. The reason I use ArrayList is because it allows me Add
new items to the array. Should I be using something other than
ArrayList to serve this purpose? Its just that i have to cast my
objects each time I access them, as follows -

ArrayList xmlElements = new ArrayList();

xmlElements.Add (doc.CreateElem ent("Test"));
doc.AppendChild ((XmlElement)xm lElements[0]);

Are you using .NET 1.1 or .NET 2.0 or higher? If you're using .NET 2.0
or higher, you should use List<T>, eg:

List<XmlElement list = new List<XmlElement >();
xmlElements.Add (doc.CreateElem ent("Test"));
doc.AppendChild (list[0]);

If you're using 1.1, you'll have to create your own strongly-typed
collection - CollectionBase is a good base class for this, or there
are other implementations available on the web.

Jon

[bg_ie]

On 29 Mar, 09:12, "Jon Skeet [C# MVP]" <[e-mail] wrote:

On Mar 29, 8:02 am, [e-mail] wrote:

I currently use ArrayList to store a set of objects all of which have
the same type. The reason I use ArrayList is because it allows me Add
new items to the array. Should I be using something other than
ArrayList to serve this purpose? Its just that i have to cast my
objects each time I access them, as follows -

ArrayList xmlElements = new ArrayList();

xmlElements.Add (doc.CreateElem ent("Test"));
doc.AppendChild ((XmlElement)xm lElements[0]);

Are you using .NET 1.1 or .NET 2.0 or higher? If you're using .NET 2.0
or higher, you should use List<T>, eg:

List<XmlElement list = new List<XmlElement >();
xmlElements.Add (doc.CreateElem ent("Test"));
doc.AppendChild (list[0]);

If you're using 1.1, you'll have to create your own strongly-typed
collection - CollectionBase is a good base class for this, or there
are other implementations available on the web.

Jon

Sweet! I'm using 2.0. Thanks for your help.