Burada enum kümesinde sıfır bir elemana erişmek isteriz. Runtime da hiç bir mesele gayrimümkün ve bizlere sayısal değeri yahut olması müstelzim dijital değeri döner , sakatlık olduğunun ayırtına varmayız. Gene bile arama etmekte fayda var :)
Sert çok programlama dili ile teknolojisine geniş perspektiften yaklaşarak, yeni serlayanlardan profesyonellere derece her seviyeden bireye normal yürekeriklerle donatılmıştır.
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JustinJustin 86k4949 gold badges226226 silver badges370370 bronze badges Add a comment
GetValueProperties is implemented kakım a (single-line) method; to fetch the "class properties" you use the lambda expression inline; the code should be consistent (either do both Where expressions inline, or both kakım helper methods)
This is because LINQ methods accept IEnumerable kakım a parameter. Consequently, they have no concept of the implementation of the original list.
I have a number of classes that derive from a class BaseClass where BaseClass just saf an `Id property.
There are multiple ways to tackle this and tell LINQ how the objects should be compared to each other. I will C# IEqualityComparer Nasıl Kullanılır cover the use of IEqualityComparer. The interface contains two methods:
There are many cases where one might want to have a Dictionary locate objects using C# IEqualityComparer nerelerde kullanılıyor something other than 100% equivalence. Bey a simple example, one may wish to have a dictionary which matches in case-insensitive fashion. One way to accomplish C# IEqualityComparer Nasıl Kullanılır that would be to convert strings to a canonical uppercase form before storing them in the dictionary or performing a lookup. An alternative approach C# IEqualityComparer Nasıl Kullanılır is to supply the dictionary with an IEqualityComparer which will compute hash-codes and check for equality in some sort of case-independent function. There are some circumstances where converting strings to canonical form and using that form whenever possible will be more efficient, but there are others where it's more efficient to only store the string in its original form.
operating on different types of classes, even complex types including sub-objects or nested lists. And derece only on simple classes comprising only primitive type properties.
Umarım haber meşbu bu makale, C# ve .Kupkuru geliştiricilerine rehberlik ederken ilham verici olmuştur!
Now, think of a field or fields that differentiate our class, ID for example. IEqualityComparer helps you to manage and improve the efficiency
IEqualityComparer kullanarak, özel gereksinimlere münasip bilgi el işi stratejileri geliştirebilir ve tatbikat C# IEqualityComparer nedir genelinde tutarlılık sağlayabilirsiniz.
PS. I don't think any custom Equals methods work with entity framework directly on the database side (I think you know this because you do AsEnumerable) but this is a much simpler method to do a simple Equals for the general case.