/// <summary>
/// Check uniqueness of case lifecycle status.
/// </summary>
/// <param name="source">Caselifecycle collection.</param>
/// <param name="statusColumnName">Status column name.</param>
/// <returns>Uniqueness of case lifecycle collection by status.</returns>
private bool CheckDistinctStatus(EntityCollection source, string statusColumnName)
{
Guid firstElement = source[0].GetTypedColumnValue <Guid>(statusColumnName);
bool isDistinct = source.All(element =>
element.GetTypedColumnValue <Guid>(statusColumnName) == firstElement);
return(isDistinct);
}