Creating an ArrayList of Objects c#

[Netmonster]

Hello,

Does any one have an example of how to create an ArrayList of objects?
i.e. ArrayList of ArrayLists or an ArrayList of Hashtables?
Thanks in advance

KC

 

[Nicholas Paldino [.NET/C# MVP]]

KC,

It's like adding any other item to an ArrayList, and then retrieving
that.

For example, if you wanted to add a Hashtable to an ArrayList, then you
would do this:

// An array list.
ArrayList arrayList = new ArrayList();

// Add 100 hashtables.
for (int index = 0; index < 100; index++)
{
// Add a hashtable.
arrayList.Add(new Hashtable());
}

Now if you want to use one of the hashtables, you would have to cast the
item that the array list returns:

// Get the first hashtable.
Hashtable hashTable = (Hashtable) arrayList[0];

Hope this helps.

 

[Netmonster]

What if you don't know the number of hashtables you want to add?

 

[Syanide]

arraylist is dynamic

ie..

ArrayList x1 = new ArrayList();

x1.Add (your object here)
x1.Add( another object here)
etc....

 

[Nicholas Paldino [.NET/C# MVP]]

Netmonster,

The array list is self-allocating. So you just keep calling Add when
you need to in order to add a new Hashtable. You don't have to know how
many you need beforehand.

 

[Netmonster]

Thanks.... It is working now


KC