public int CompareTo(Category other)
{
if (other == null)
{
return(0);
}
var messageCompare = String.Compare(Message, other.Message, StringComparison.Ordinal);
if (messageCompare == 0)
{
var typeCompare = Type.CompareTo(other.Type);
if (typeCompare == 0)
{
return(Topic.CompareTo(other.Topic));
}
else
{
return(typeCompare);
}
}
else
{
return(messageCompare);
}
}
public int CompareTo(object obj)
{
if (!(obj is Category))
{
return(1); // ??
}
var categoryObj = (Category)obj;
var nameComparison =
(string.Compare(ProductName, categoryObj.ProductName, StringComparison.InvariantCulture));
var typeComparison = Type.CompareTo(categoryObj.Type);
var topicComparison = Topic.CompareTo(categoryObj.Topic);
if (nameComparison != 0)
{
return(nameComparison);
}
if (typeComparison != 0)
{
return(typeComparison);
}
if (topicComparison != 0)
{
return(topicComparison);
}
return(0);
}
public int CompareTo(GoodNumber other)
{
if (MessageType != other.MessageType)
{
return(MessageType.CompareTo(other.MessageType));
}
return(Number.CompareTo(other.Number));
}
public int CompareTo(object obj)
{
if (!(obj is Category category))
{
return(1);
}
if (ProductName != category.ProductName)
{
return(ProductName == null ? -1 : ProductName.CompareTo(category.ProductName));
}
if (MessageType != category.MessageType)
{
return(MessageType.CompareTo(category.MessageType));
}
return(MessageTopic.CompareTo(category.MessageTopic));
}
/// <summary>
/// Выполняет сравнение сначала по тексту сообщения, потом по типу, потом по теме
/// Позволяет сравнивать так же null - объекты и объекты, содержащие null - поля
/// </summary>
public int CompareTo(object obj)
{
if ((object)this == null && obj == null)
{
return(0);
}
if (obj == null)
{
return(1);
}
if (!(obj is Category))
{
throw new ArgumentException();
}
if ((object)this == null)
{
return(-1);
}
sbyte compareResult = 0;
if ((MessageText == null) != (((Category)obj).MessageText == null))
{
return(((Category)obj).MessageText == null ? 1 : -1);
}
else if (MessageText != null)
{
compareResult = (sbyte)MessageText.CompareTo(((Category)obj).MessageText);
}
if (compareResult != 0)
{
return(compareResult);
}
else
{
compareResult = (sbyte)MessageType.CompareTo(((Category)obj).MessageType);
if (compareResult != 0)
{
return(compareResult);
}
else
{
return(MessageTopic.CompareTo(((Category)obj).MessageTopic));
}
}
}
public int CompareTo(object obj)
{
if (obj == null)
{
return(1);
}
if (obj is Category)
{
var cobj = (Category)obj;
var n = Name?.CompareTo(cobj.Name) ?? -1;
var ty = Type.CompareTo(cobj.Type);
var to = Topic.CompareTo(cobj.Topic);
var result = n != 0 ? n : (ty != 0 ? ty : to);
return(result);
}
else
{
throw new ArgumentException($"Can not compate Category with {obj.GetType().Name}");
}
}
