<\/div>\n

Merhaba,<\/p>\n

\u00d6nceki yaz\u0131lar\u0131mda IEnumerable ve IEnumerator interface’leri ile \u00f6zel koleksiyon yap\u0131s\u0131n\u0131n nas\u0131l olu\u015fturuldu\u011funa de\u011finmi\u015ftik.(\u0130lgili makale : C#\u2019ta IEnumerable ve IEnumerator Interfaceleri Nedir? ve Nas\u0131l Kullan\u0131l\u0131r?<\/a>)<\/em> Bu i\u00e7eri\u011fimizde ise olu\u015fturdu\u011fumuz \u00f6zel bir koleksiyonda initializers(ilklendirici\/\u00f6n de\u011fer) \u00f6zelli\u011finin nas\u0131l yap\u0131land\u0131r\u0131ld\u0131\u011f\u0131 \u00fczerine konu\u015fuyor olaca\u011f\u0131z.<\/p>\n

\u00d6ncelikle yukar\u0131da vermi\u015f oldu\u011fum adreste bahsedildi\u011fi gibi IEnumerable ve IEnumerator interfaceleri ile \u00f6rnek bir koleksiyon yap\u0131s\u0131 olu\u015ftural\u0131m.<\/p>\n

\r\n    struct Koordinat\r\n    {\r\n        public int x { get; set; }\r\n        public int y { get; set; }\r\n        public int z { get; set; }\r\n        public bool Durum { get; set; }\r\n    }\r\n<\/pre>\n\r\n    class Koordinatlar : IEnumerable<Koordinat>\r\n    {\r\n        readonly List<Koordinat> KoordinatListesi = new List<Koordinat>();\r\n        public IEnumerator<Koordinat> GetEnumerator() => KoordinatListesi.GetEnumerator();\r\n        IEnumerator IEnumerable.GetEnumerator() => KoordinatListesi.GetEnumerator();\r\n    }\r\n<\/pre>\nOlu\u015fturmu\u015f oldu\u011fumuz “Koordinatlar” s\u0131n\u0131f\u0131 IEnumerable koleksiyonu arac\u0131l\u0131\u011f\u0131yla itere edilebilir hale getirilmi\u015ftir. Haliyle foreach d\u00f6ng\u00fcs\u00fcyle bu s\u0131n\u0131f\u0131n nesnesi \u00fczerinde rahat bir \u015fekilde d\u00f6nebiliriz. Amma velakin bu tarz detaylara \u00f6nceki makalede de\u011findi\u011fimiz i\u00e7in hi\u00e7 girmiyorum.<\/p>\n
“Koordinatlar” s\u0131n\u0131f\u0131 \u00fczerinde a\u015fa\u011f\u0131daki gibi ilklendirici \u00e7al\u0131\u015ft\u0131rmak istiyoruz,<\/p>\n\r\n            Koordinatlar koordinatlar = new Koordinatlar\r\n            {\r\n                new Koordinat { x = 1, y = 3, z = 5, Durum = true },\r\n                new Koordinat { x = 2, y = 4, z = 6, Durum = false  }\r\n            };\r\n<\/pre>\nAma bu i\u015flemi yapt\u0131\u011f\u0131m\u0131zda a\u015fa\u011f\u0131daki ekran g\u00f6r\u00fcnt\u00fcs\u00fcnde oldu\u011fu gibi hatayla kar\u015f\u0131la\u015f\u0131yoruz.
\n<\/a><\/p>\n
Al\u0131nan hatan\u0131n metinsel halini a\u015fa\u011f\u0131ya al\u0131rsak e\u011fer,<\/p>\n
Severity Code Description Project File Line Suppression State
\nError CS1061 ‘Koordinatlar’ does not contain a definition for ‘Add’ and no extension method ‘Add’ accepting a first argument of type ‘Koordinatlar’ could be found (are you missing a using directive or an assembly reference?)<\/em><\/p><\/blockquote>\n
g\u00f6r\u00fcld\u00fc\u011f\u00fc \u00fczere ilgili s\u0131n\u0131f i\u00e7erisinde “Add” isminde bir arg\u00fcman\u0131n bulunmad\u0131\u011f\u0131n\u0131 s\u00f6ylemekte ve hatan\u0131n bu eksiklikten kaynakland\u0131\u011f\u0131n\u0131 belirtmektedir.<\/p>\n
Hemen “Koordinatlar” s\u0131n\u0131f\u0131m\u0131z\u0131n i\u00e7erisine “Add” metodunu ekleyelim.<\/p>\n
\r\n    class Koordinatlar : IEnumerable<Koordinat>\r\n    {\r\n        public void Add(Koordinat k) => KoordinatListesi.Add(k);\r\n        readonly List<Koordinat> KoordinatListesi = new List<Koordinat>();\r\n        public IEnumerator<Koordinat> GetEnumerator() => KoordinatListesi.GetEnumerator();\r\n        IEnumerator IEnumerable.GetEnumerator() => KoordinatListesi.GetEnumerator();\r\n    }\r\n<\/pre>\n\u0130lgili metodu ekledikten sonra ilklendiricimize g\u00f6z atarsak e\u011fer hatam\u0131z\u0131n ortadan kalkt\u0131\u011f\u0131n\u0131 g\u00f6rece\u011fiz.
\n<\/a><\/p>\n
Burada yapm\u0131\u015f oldu\u011fumuz i\u015flemler neticesinde mekanizman\u0131n nas\u0131l \u00e7al\u0131\u015ft\u0131\u011f\u0131n\u0131 anlad\u0131\u011f\u0131n\u0131z\u0131 d\u00fc\u015f\u00fcn\u00fcyorum. \u0130lklendirici, arkaplanda ilgili s\u0131n\u0131f\u0131n “Add” metodunu tetiklemekte ve girilen de\u011feri parametreyle yakayarak i\u015fleme tabi tutmaktad\u0131r.<\/p>\n
Burada bilmeniz gereken bir di\u011fer husus ise ilklendiricide belirtilen her bir virg\u00fcl\u00fcn(,) tek ba\u015f\u0131na “Add” metodunu temsil etmesidir. Peki bu ne demektir?<\/strong><\/em><\/p>\n
“Add” metodunun overload\u0131n\u0131 olu\u015ftural\u0131m.<\/p>\n
\r\n    class Koordinatlar : IEnumerable<Koordinat>\r\n    {\r\n        public void Add(Koordinat k) => KoordinatListesi.Add(k);\r\n        public void Add(int x, int y, int z, bool Durum) => KoordinatListesi.Add(new Koordinat { x = x, y = y, z = z, Durum = Durum });\r\n        ...\r\n        ...\r\n        ...\r\n    }\r\n<\/pre>\n\u015eimdide “Koordinatlar” s\u0131n\u0131f\u0131ndan tekrardan bir nesne olu\u015fturup ilklendirici ile veri atayal\u0131m.<\/p>\n
\r\n            Koordinatlar koordinatlar = new Koordinatlar\r\n            {\r\n                new Koordinat { x = 1, y = 3, z = 5, Durum = true },\r\n                {2, 4, 6, false }\r\n            };\r\n<\/pre>\nYukar\u0131daki kod blo\u011funu incelerseniz e\u011fer, ilklendiricideki her bir virg\u00fcl\u00fcn “Add” metodunu ayr\u0131 ayr\u0131 \u00e7a\u011f\u0131rd\u0131\u011f\u0131n\u0131 hatta verilerin tipine g\u00f6re “Add” metodunun ilgili overload’\u0131n\u0131 \u00e7a\u011f\u0131rd\u0131\u011f\u0131n\u0131 g\u00f6rmekteyiz.<\/p>\n
Bu makalemizde de \u00f6zel olarak olu\u015fturdu\u011fumuz bir koleksiyon yap\u0131s\u0131na nas\u0131l ilklendirici \u00f6zelli\u011fi kazand\u0131r\u0131ld\u0131\u011f\u0131n\u0131 irdelemi\u015f olduk.<\/p>\n
Sonraki yaz\u0131lar\u0131mda g\u00f6r\u00fc\u015fmek \u00fczere…
\n\u0130yi \u00e7al\u0131\u015fmalar…<\/p>\n","protected":false},"excerpt":{"rendered":"
Merhaba, \u00d6nceki yaz\u0131lar\u0131mda IEnumerable ve IEnumerator interface’leri ile \u00f6zel koleksiyon yap\u0131s\u0131n\u0131n nas\u0131l olu\u015fturuldu\u011funa de\u011finmi\u015ftik.(\u0130lgili makale : C#\u2019ta IEnumerable ve IEnumerator Interfaceleri Nedir? ve Nas\u0131l Kullan\u0131l\u0131r?) Bu i\u00e7eri\u011fimizde ise olu\u015fturdu\u011fumuz \u00f6zel bir koleksiyonda initializers(ilklendirici\/\u00f6n de\u011fer)...<\/p>\n","protected":false},"author":1,"featured_media":3014,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[12],"tags":[1653,1651,1043,1044,723,1652],"class_list":["post-5831","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-c-sharp-c","tag-collection","tag-custom-collection-initializers","tag-ienumerable","tag-ienumerator","tag-initializers","tag-ozel-koleksiyon-ilklendiriciler"],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/www.gencayyildiz.com\/blog\/wp-json\/wp\/v2\/posts\/5831","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.gencayyildiz.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.gencayyildiz.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.gencayyildiz.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.gencayyildiz.com\/blog\/wp-json\/wp\/v2\/comments?post=5831"}],"version-history":[{"count":0,"href":"https:\/\/www.gencayyildiz.com\/blog\/wp-json\/wp\/v2\/posts\/5831\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.gencayyildiz.com\/blog\/wp-json\/wp\/v2\/media\/3014"}],"wp:attachment":[{"href":"https:\/\/www.gencayyildiz.com\/blog\/wp-json\/wp\/v2\/media?parent=5831"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.gencayyildiz.com\/blog\/wp-json\/wp\/v2\/categories?post=5831"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.gencayyildiz.com\/blog\/wp-json\/wp\/v2\/tags?post=5831"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}