C# (CSharp) ReadingBookManager ReadingRecordByBook примеры использования

Пример #1

 public ReadingRecordByPage(ReadingRecordByBook firstBookRecord, string bookName) :
     this(firstBookRecord.Date, firstBookRecord.ReadPage, bookName)
 {
 }

Пример #2

 public ReadingRecordByPage(ReadingRecordByBook bookRecord1, ReadingRecordByBook bookRecord2, string bookName)
     : this(bookRecord2.Date, bookRecord2.ReadPage - bookRecord1.ReadPage, bookName)
 {
 }