/// <summary>
/// Creates the index for the node.
/// </summary>
/// <returns>Returns true if the index was created successfully, or false if it not possible
/// to create a new index for this node.</returns>
/// <remarks>This method should be called after the node is added to a list.</remarks>
internal bool CreateIndex()
{
bool success = false;
if (this.next == null)
{
if (this.previous == null)
{
// This is the only node in the list.
success = NodeIndex.CreateFirst(out this.index);
}
else
{
// This is the last node in the list.
success = NodeIndex.CreateAfter(this.previous.index, out this.index);
}
}
else if (this.previous == null)
{
// This is the last node in the list.
success = NodeIndex.CreateBefore(this.next.index, out this.index);
}
else
{
// This node is between two nodes in the list.
success = NodeIndex.CreateBetween(this.previous.index, this.next.index, out this.index);
}
return(success);
}