{"id":3465,"date":"2024-11-10T00:45:11","date_gmt":"2024-11-09T21:45:11","guid":{"rendered":"https:\/\/fatihsoysal.com\/blog\/c-gelismis-c-kayitlarina-ek-uyeler-ekleme\/"},"modified":"2024-11-10T00:45:11","modified_gmt":"2024-11-09T21:45:11","slug":"c-gelismis-c-kayitlarina-ek-uyeler-ekleme","status":"publish","type":"post","link":"https:\/\/fatihsoysal.com\/blog\/c-gelismis-c-kayitlarina-ek-uyeler-ekleme\/","title":{"rendered":"C# Geli\u015fmi\u015f: C# Kay\u0131tlar\u0131na Ek \u00dcyeler Ekleme"},"content":{"rendered":"

C# Geli\u015fmi\u015f: C# Kay\u0131tlar\u0131na Ek \u00dcyeler Ekleme<\/p>\n

C# kay\u0131tlar\u0131, verileri bir arada tutman\u0131n basit ve g\u00fcvenli bir yoludur. Kay\u0131tlar, de\u011fi\u015fmezdir, yani olu\u015fturulduktan sonra de\u011ferleri de\u011fi\u015ftirilemez. Ancak bazen bir kay\u0131ta yeni \u00fcyeler ekleme ihtiyac\u0131 duyabiliriz. Bu makalede C# kay\u0131tlar\u0131na ek \u00fcyeler eklemenin farkl\u0131 yollar\u0131n\u0131 inceleyece\u011fiz.<\/p>\n

1. Yeni Bir Kay\u0131t T\u00fcr\u00fc Olu\u015fturma<\/h2>\n

Ek \u00fcyeler i\u00e7eren yeni bir kay\u0131t t\u00fcr\u00fc olu\u015fturmak, yeni bir kay\u0131t t\u00fcr\u00fcne ek \u00fcyeler eklemenin en basit yoludur. Bu y\u00f6ntem, orijinal kay\u0131t t\u00fcr\u00fcn\u00fc de\u011fi\u015ftirmeden yeni bir kay\u0131t t\u00fcr\u00fc olu\u015fturman\u0131z\u0131 sa\u011flar.<\/p>\n

“`csharp
\npublic record Person
\n{
\n public string FirstName { get; init; }
\n public string LastName { get; init; }
\n}<\/p>\n

public record Employee : Person
\n{
\n public int EmployeeId { get; init; }
\n public string Department { get; init; }
\n}
\n“`<\/p>\n

Yukar\u0131daki \u00f6rnekte, **Employee** adl\u0131 yeni bir kay\u0131t t\u00fcr\u00fc olu\u015fturduk ve bu t\u00fcr **Person** t\u00fcr\u00fcnden t\u00fcretilmi\u015ftir. **Employee** t\u00fcr\u00fc, **Person** t\u00fcr\u00fcn\u00fcn t\u00fcm \u00fcyelerini miras al\u0131r ve ek olarak **EmployeeId** ve **Department** \u00fcyelerini i\u00e7erir.<\/p>\n

2. Kal\u0131t\u0131m Kullanma<\/h2>\n

Yeni bir kay\u0131t t\u00fcr\u00fc olu\u015fturmak yerine, mevcut bir kay\u0131t t\u00fcr\u00fcne yeni \u00fcyeler eklemek i\u00e7in kal\u0131t\u0131m\u0131 kullanabiliriz. Kal\u0131t\u0131m kullanarak, mevcut bir kay\u0131t t\u00fcr\u00fcnden miras alan ve ek \u00fcyeler i\u00e7eren yeni bir kay\u0131t t\u00fcr\u00fc olu\u015fturabiliriz. <\/p>\n

“`csharp
\npublic record Person
\n{
\n public string FirstName { get; init; }
\n public string LastName { get; init; }
\n}<\/p>\n

public record Employee : Person
\n{
\n public int EmployeeId { get; init; }
\n public string Department { get; init; }
\n}
\n“`<\/p>\n

Bu \u00f6rnekte, **Employee** t\u00fcr\u00fc **Person** t\u00fcr\u00fcnden t\u00fcretilmi\u015ftir. **Employee** t\u00fcr\u00fc, **Person** t\u00fcr\u00fcn\u00fcn t\u00fcm \u00fcyelerini miras al\u0131r ve ek olarak **EmployeeId** ve **Department** \u00fcyelerini i\u00e7erir. Bu y\u00f6ntem, mevcut kay\u0131t t\u00fcr\u00fcn\u00fc de\u011fi\u015ftirmeden ek \u00fcyeler ekleme olana\u011f\u0131 sa\u011flar.<\/p>\n

3. Kay\u0131t Geni\u015fletme Kullanma<\/h2>\n

C# 9.0’dan itibaren, mevcut bir kay\u0131t t\u00fcr\u00fcn\u00fc geni\u015fletebilen kay\u0131t geni\u015fletme \u00f6zelli\u011fi sunulmaktad\u0131r. Kay\u0131t geni\u015fletme, mevcut kay\u0131t t\u00fcr\u00fcn\u00fc de\u011fi\u015ftirmeden yeni \u00fcyeler eklemenizi sa\u011flar. <\/p>\n

“`csharp
\npublic record Person
\n{
\n public string FirstName { get; init; }
\n public string LastName { get; init; }
\n}<\/p>\n

public static class PersonExtensions
\n{
\n public static Employee ToEmployee(this Person person, int employeeId, string department)
\n {
\n return new Employee(person.FirstName, person.LastName, employeeId, department);
\n }
\n}<\/p>\n

public record Employee(string FirstName, string LastName, int EmployeeId, string Department);
\n“`<\/p>\n

Yukar\u0131daki \u00f6rnekte, **PersonExtensions** s\u0131n\u0131f\u0131, **Person** t\u00fcr\u00fc i\u00e7in bir geni\u015fletme y\u00f6ntemi tan\u0131mlar. **ToEmployee** y\u00f6ntemi, bir **Person** nesnesini, **EmployeeId** ve **Department** de\u011ferlerini alarak bir **Employee** nesnesine d\u00f6n\u00fc\u015ft\u00fcr\u00fcr. Bu y\u00f6ntem, **Person** t\u00fcr\u00fcnde ek \u00fcyeler olu\u015fturmaz, ancak yeni bir **Employee** nesnesi olu\u015fturarak mevcut nesneyi geni\u015fletir.<\/p>\n

C# Kay\u0131tlar\u0131na Ek \u00dcyeler Eklemenin Avantajlar\u0131<\/h2>\n

C# kay\u0131tlar\u0131na ek \u00fcyeler eklemenin birka\u00e7 avantaj\u0131 vard\u0131r:<\/p>\n