limit list capacity

[Tem]

Is there a way to set a hard limit on the capacity of a List<>?

 

[Tem]

I would like it to throw an exception saying the limit has been reached

 

[Marc Gravell]

Not with List<T>; however, it would be fairly trivial to inherit from
Collection<T> to enforce this:

public class BoundCollection<T> : Collection<T>
{
private readonly int maxCount;
public BoundCollection(int maxCount)
{
if (maxCount <= 0) throw new
ArgumentOutOfRangeException("maxCount");
this.maxCount = maxCount;
}
protected override void InsertItem(int index, T item)
{
if (Count >= maxCount)
{
throw new InvalidOperationException("No room");
}
base.InsertItem(index, item);
}
}

Marc