/// <summary>
/// Gets or sets the <see cref="DomainObject"/> with a given <paramref name="index"/> in the <see cref="DomainObjectCollection"/>.
/// </summary>
/// <exception cref="System.ArgumentOutOfRangeException">
/// <paramref name="index"/> is less than zero.<br /> -or- <br />
/// <paramref name="index"/> is equal to or greater than the number of items in the collection.
/// </exception>
/// <exception cref="System.NotSupportedException">The collection is read-only.</exception>
/// <exception cref="System.ArgumentException">
/// <paramref name="value"/> is not a derived type of <see cref="DomainObject"/> and of type <see cref="RequiredItemType"/> or a derived type.
/// </exception>
/// <exception cref="System.InvalidOperationException"><paramref name="value"/> is already part of the collection.</exception>
public DomainObject this [int index]
{
get { return(_dataStrategy.GetObject(index)); }
set
{
this.CheckNotReadOnly("Cannot modify a read-only collection.");
// If new value is null: This is actually a remove operation
if (value == null)
{
RemoveAt(index);
}
else
{
_dataStrategy.Replace(index, value);
}
}
}
public virtual void Replace(int index, DomainObject value)
{
ArgumentUtility.CheckNotNull("value", value);
_wrappedData.Replace(index, value);
}