/// <summary>
/// Return a deep copy of this collection
/// </summary>
/// <returns>TravelPostCollection object</returns>
public TravelPostCollection Clone()
{
TravelPostCollection clone = new TravelPostCollection();
foreach (TravelPost post in this)
{
clone.Add(post.Clone());
}
clone.IsModified = this.IsModified;
return(clone);
}
/// <summary>
/// Adds a post to _postCollection field
/// </summary>
/// <param name="image">a post</param>
private void AddPost(TravelPost post)
{
_postCollection.Add(post);
}