/// <summary>
/// Gets the previous What If article
/// </summary>
/// <returns>Previous What If article, null if no previous article</returns>
public WhatIfArticle Previous()
{
WhatIfArchiveEntry prevArchiveEntry = WhatIf.WhatIfDictionary.OrderByDescending(x => x.Key).SkipWhile(x => x.Key >= Id).FirstOrDefault().Value;
if (prevArchiveEntry != null)
{
return(WhatIf.GetArticle(prevArchiveEntry));
}
return(null);
}
/// <summary>
/// Gets the next What If article
/// </summary>
/// <returns>Next What If article, null if no next article</returns>
public WhatIfArticle Next()
{
WhatIfArchiveEntry nextArchiveEntry = WhatIf.WhatIfDictionary.OrderBy(x => x.Key).SkipWhile(x => x.Key <= Id).FirstOrDefault().Value;
if (nextArchiveEntry != null)
{
return(WhatIf.GetArticle(nextArchiveEntry));
}
return(null);
}