To guarantee thread safety during enumeration, you emanet either lock the collection during the entire enumeration or catch the exceptions resulting from changes made by other threads.
Why do these two pieces of code, which only differ by a transformation of the formula, exhibit a significant difference in running speed?
. Why not return IEnumerable? Calling code would have to cast, which they are unlikely to do without knowing the internals of the property they are accessing.
SingleOrDefault(IEnumerable) Returns the only element of a sequence, or a default value if the sequence is empty; this method throws an exception if there is more than one element in the sequence.
The main advantage of this comes in the fact that you emanet't add code to collections so whenever you have a native "collection" in your object biçim, you ALWAYS have non-OO support code spread throughout your project to access it.
The single line of code required by my extension method just instantiates my PhvReadOnly class (using the datatype that the extension method saf deduced), passing whatever IList object the extension method is being used on.
Ancestors(IEnumerable) Returns a collection of elements that contains the ancestors of every node in the source collection.
ElementAtOrDefault(IEnumerable, Index) Returns the C# ReadOnlyCollectionBase Nedir element at a specified index in a sequence or a default value if the index is out of range.
Dirilik you arrange 25 whole numbers (hamiş C# ReadOnlyCollectionBase Nasıl Kullanılır necessarily all different) so that the sum of any three successive terms is even but the sum of all 25 is odd? more hot questions
If you do this then there's nothing stopping your C# ReadOnlyCollectionBase Nedir callers casting the IEnumerable back to ICollection and then modifying it. ReadOnlyCollection removes this possibility, although it's still possible to access the underlying writable collection via reflection.
When you write a For…Each loop to use with a collection, the compiler checks the collection class to see if it implements the IEnumerable interface (or the generic version of C# ReadOnlyCollectionBase Kullanımı that interface, IEnumerable). If the class does implement that interface, then the compiler calls the single method that the interface forces the class to have: the GetEnumerator method.
Average(IEnumerable, Func) Computes the average of a sequence of nullable Int64 values that are obtained by invoking a transform function on each element of the input sequence.
I was looking for a similar solution, but I wanted to still be able to modify the collection from inside the class so I chose the option outlined here: In short, his example is: public class MyClass
If however your intent is to prevent the calling code C# ReadOnlyCollectionBase Nasıl Kullanılır from observing updates from other threads you'll have to fall back to solutions already mentioned, to perform a deep or shallow copy depending on your need.