https://www.c-sharpcorner.com/articles/Articles from C# Corner© 1999 - 2026 CSharp Inc. All contents are copyright of their authors.This blog deals with conversions between Roman numerals and decimal integers.https://www.c-sharpcorner.com/blogs/converting-to-and-from-roman-numerals1https://www.c-sharpcorner.com/blogs/converting-to-and-from-roman-numerals1Wed, 15 Jan 2014 00:00:00 GMTnoreply@c-sharpcorner.com (Vulpes )How to use LINQ's Zip query operatorhttps://www.c-sharpcorner.com/blogs/using-linqs-zip-query-operator1https://www.c-sharpcorner.com/blogs/using-linqs-zip-query-operator1Wed, 18 Apr 2012 00:00:00 GMTnoreply@c-sharpcorner.com (Vulpes )A program which uses LINQ to check whether a string is a pangram or a palindrome.https://www.c-sharpcorner.com/blogs/using-linq-to-check-whether-a-string-is-a-pangram-or-a-palindrome1https://www.c-sharpcorner.com/blogs/using-linq-to-check-whether-a-string-is-a-pangram-or-a-palindrome1Tue, 17 Apr 2012 00:00:00 GMTnoreply@c-sharpcorner.com (Vulpes )In this article, I’d like to review two of the commonest keyless ciphers and discuss what can be done to make them sufficiently secure so we could use them in our programs.https://www.c-sharpcorner.com/UploadFile/b942f9/creating-a-more-secure-‘keyless’-cipher-using-C-Sharp/https://www.c-sharpcorner.com/UploadFile/b942f9/creating-a-more-secure-‘keyless’-cipher-using-C-Sharp/Tue, 10 Apr 2012 00:00:00 GMTnoreply@c-sharpcorner.com (Vulpes )A problem which often arises in practice is how to convert a cardinal number to its ordinal equivalent. https://www.c-sharpcorner.com/UploadFile/b942f9/converting-cardinal-numbers-to-ordinal-using-C-Sharp/https://www.c-sharpcorner.com/UploadFile/b942f9/converting-cardinal-numbers-to-ordinal-using-C-Sharp/Mon, 09 Apr 2012 00:00:00 GMTnoreply@c-sharpcorner.com (Vulpes )In this article, I'd therefore like to present a simple program which does all this.https://www.c-sharpcorner.com/UploadFile/b942f9/converting-dates-to-words-in-C-Sharp/https://www.c-sharpcorner.com/UploadFile/b942f9/converting-dates-to-words-in-C-Sharp/Thu, 05 Apr 2012 00:00:00 GMTnoreply@c-sharpcorner.com (Vulpes )Suppose you're writing a multi-threaded application and you want each thread to have its own copy of some data. You also want this data to persist throughout the lifetime of the thread.https://www.c-sharpcorner.com/UploadFile/b942f9/thread-local-storage-of-data-in-net/https://www.c-sharpcorner.com/UploadFile/b942f9/thread-local-storage-of-data-in-net/Wed, 30 Nov 2011 00:00:00 GMTnoreply@c-sharpcorner.com (Vulpes )In this article I will be demonstrating an implementation of a Double-Ended Queue (or Deque) in C#.https://www.c-sharpcorner.com/UploadFile/b942f9/implementing-a-double-ended-queue-or-deque-in-C-Sharp/https://www.c-sharpcorner.com/UploadFile/b942f9/implementing-a-double-ended-queue-or-deque-in-C-Sharp/Mon, 28 Nov 2011 00:00:00 GMTnoreply@c-sharpcorner.com (Vulpes )Whilst doing some research on cryptography, I came across the Chaocipher.https://www.c-sharpcorner.com/UploadFile/b942f9/implementing-the-chaocipher-in-C-Sharp/https://www.c-sharpcorner.com/UploadFile/b942f9/implementing-the-chaocipher-in-C-Sharp/Wed, 16 Nov 2011 00:00:00 GMTnoreply@c-sharpcorner.com (Vulpes )An update to the class in my article entitled 'A Dictionary class which permits duplicate keys'.https://www.c-sharpcorner.com/blogs/an-update-to-the-lexicon-class-is-available1https://www.c-sharpcorner.com/blogs/an-update-to-the-lexicon-class-is-available1Tue, 15 Nov 2011 00:00:00 GMTnoreply@c-sharpcorner.com (Vulpes )In this article, I present a number of adjuncts to the 'Lexicon' class which I introduced in an earlier article.https://www.c-sharpcorner.com/UploadFile/b942f9/a-dictionary-class-which-permits-duplicate-keys-part-ii/https://www.c-sharpcorner.com/UploadFile/b942f9/a-dictionary-class-which-permits-duplicate-keys-part-ii/Mon, 14 Nov 2011 00:00:00 GMTnoreply@c-sharpcorner.com (Vulpes )A dictionary class permitting duplicate keys accommodates multiple values for the same key. It employs strategies like chaining or allowing multiple entries with the same key, enhancing flexibility inhttps://www.c-sharpcorner.com/UploadFile/b942f9/a-dictionary-class-which-permits-duplicate-keys/https://www.c-sharpcorner.com/UploadFile/b942f9/a-dictionary-class-which-permits-duplicate-keys/Tue, 08 Nov 2011 00:00:00 GMTnoreply@c-sharpcorner.com (Vulpes )In this article (the first of an occasional series), I'd like to take a basic look at the managed version of C++ from the perspective of a C# programmer. No previous knowledge of C++ is needed.https://www.c-sharpcorner.com/UploadFile/b942f9/cppcli-for-the-C-Sharp-programmer/https://www.c-sharpcorner.com/UploadFile/b942f9/cppcli-for-the-C-Sharp-programmer/Wed, 19 Oct 2011 00:00:00 GMTnoreply@c-sharpcorner.com (Vulpes )I thought for a bit of fun I'd invent a new cipher and, depending on how 'strong' it turned out to be, perhaps use it in my projects to encrypt string literals, files etc.https://www.c-sharpcorner.com/uploadfile/b942f9/creating-a-substitution-cipher-with-C-Sharp/default.aspxhttps://www.c-sharpcorner.com/uploadfile/b942f9/creating-a-substitution-cipher-with-C-Sharp/default.aspxMon, 17 Oct 2011 00:00:00 GMTnoreply@c-sharpcorner.com (Vulpes )Additional code needed to enable generic enums to have new members added dynamically.https://www.c-sharpcorner.com/blogs/creating-dynamic-enums-using-c-sharp1https://www.c-sharpcorner.com/blogs/creating-dynamic-enums-using-c-sharp1Wed, 12 Oct 2011 00:00:00 GMTnoreply@c-sharpcorner.com (Vulpes )An enum variable can then be set to any one of these constants or (in the case of ‘Flags’ enums) to a meaningful combination of them.https://www.c-sharpcorner.com/UploadFile/b942f9/creating-generic-enums-using-C-Sharp/https://www.c-sharpcorner.com/UploadFile/b942f9/creating-generic-enums-using-C-Sharp/Tue, 11 Oct 2011 00:00:00 GMTnoreply@c-sharpcorner.com (Vulpes )Quick fix for adding decimal support to my article about Converting Numbers to Words using the Indian Numbering System.https://www.c-sharpcorner.com/blogs/converting-numbers-to-words-adding-decimal-support1https://www.c-sharpcorner.com/blogs/converting-numbers-to-words-adding-decimal-support1Wed, 20 Jul 2011 00:00:00 GMTnoreply@c-sharpcorner.com (Vulpes )In this article, I'd like to present a similar program using the Indian numbering system. This system differs from the US/UK systems in that it doesn't use 'millions' but instead uses https://www.c-sharpcorner.com/UploadFile/b942f9/converting-numbers-to-words-using-the-indian-numbering-system/https://www.c-sharpcorner.com/UploadFile/b942f9/converting-numbers-to-words-using-the-indian-numbering-system/Sun, 22 May 2011 00:00:00 GMTnoreply@c-sharpcorner.com (Vulpes )‘var’ is a contextual keyword that was first introduced in C# 3.0. It’s described as contextual because it’s only a keyword when used in a certain context - in other contexts it can be used as an ordihttps://www.c-sharpcorner.com/UploadFile/b942f9/when-should-you-use-the-var-keyword-in-C-Sharp/https://www.c-sharpcorner.com/UploadFile/b942f9/when-should-you-use-the-var-keyword-in-C-Sharp/Mon, 25 Apr 2011 00:00:00 GMTnoreply@c-sharpcorner.com (Vulpes )The .NET Framework does have the Enumerable.Range() method, which is used mainly in conjunction with LINQ queries.https://www.c-sharpcorner.com/UploadFile/b942f9/dealing-with-ranges-of-numbers-in-C-Sharp/https://www.c-sharpcorner.com/UploadFile/b942f9/dealing-with-ranges-of-numbers-in-C-Sharp/Thu, 21 Apr 2011 00:00:00 GMTnoreply@c-sharpcorner.com (Vulpes )https://www.c-sharpcorner.com/uploadfile/b942f9/extending-the-datetime-structure-in-C-Sharp-part-ii/default.aspxhttps://www.c-sharpcorner.com/uploadfile/b942f9/extending-the-datetime-structure-in-C-Sharp-part-ii/default.aspxThu, 14 Apr 2011 00:00:00 GMTnoreply@c-sharpcorner.com (Vulpes )This article presents some "extension" methods which I hope will be useful for those developers who, like myself, work a lot with dates. https://www.c-sharpcorner.com/uploadfile/b942f9/extending-the-datetime-structu-part-i/default.aspxhttps://www.c-sharpcorner.com/uploadfile/b942f9/extending-the-datetime-structu-part-i/default.aspxTue, 12 Apr 2011 00:00:00 GMTnoreply@c-sharpcorner.com (Vulpes )In those days, he had a point because the 'goto' statement produced a lot of spaghetti code particularly by those using early versions of the BASIC programming language.https://www.c-sharpcorner.com/UploadFile/b942f9/acceptable-uses-for-the-goto-statement-in-C-Sharp/https://www.c-sharpcorner.com/UploadFile/b942f9/acceptable-uses-for-the-goto-statement-in-C-Sharp/Tue, 05 Apr 2011 00:00:00 GMTnoreply@c-sharpcorner.com (Vulpes )Windows Data Protection (or WDP) is an encryption system provided by the operating system based on a key which is automatically generated from the logged-in user’s password.https://www.c-sharpcorner.com/uploadfile/b942f9/using-windows-data-protection/default.aspxhttps://www.c-sharpcorner.com/uploadfile/b942f9/using-windows-data-protection/default.aspxThu, 31 Mar 2011 00:00:00 GMTnoreply@c-sharpcorner.com (Vulpes )MemoryMappedFile is an interesting new class in version 4.0 of the .NET Framework which resides in the System.IO.MemoryMappedFiles namespace.https://www.c-sharpcorner.com/UploadFile/b942f9/using-memory-mapped-files/https://www.c-sharpcorner.com/UploadFile/b942f9/using-memory-mapped-files/Wed, 30 Mar 2011 00:00:00 GMTnoreply@c-sharpcorner.com (Vulpes )Many C# programmers are familiar with the Platform Invoke mechanism (using the DllImport attribute) for calling unmanaged functions from C#.https://www.c-sharpcorner.com/UploadFile/b942f9/calling-unmanaged-functions-which-take-a-variable-number-of-arguments-from-C-Sharp/https://www.c-sharpcorner.com/UploadFile/b942f9/calling-unmanaged-functions-which-take-a-variable-number-of-arguments-from-C-Sharp/Tue, 29 Mar 2011 00:00:00 GMTnoreply@c-sharpcorner.com (Vulpes )This article shows how to convert a number to words.https://www.c-sharpcorner.com/UploadFile/b942f9/converting-numbers-to-words-in-C-Sharp/https://www.c-sharpcorner.com/UploadFile/b942f9/converting-numbers-to-words-in-C-Sharp/Fri, 25 Mar 2011 00:00:00 GMTnoreply@c-sharpcorner.com (Vulpes )Learn advanced techniques in C# to simulate multiple inheritance. Explore how to effectively combine classes, interfaces, and other features to achieve complex behavior in your programs. Part II of thhttps://www.c-sharpcorner.com/UploadFile/b942f9/simulating-multiple-inheritance-in-C-Sharp-part-ii/https://www.c-sharpcorner.com/UploadFile/b942f9/simulating-multiple-inheritance-in-C-Sharp-part-ii/Wed, 23 Mar 2011 00:00:00 GMTnoreply@c-sharpcorner.com (Vulpes )In this article, we will explore techniques for simulating multiple inheritance in C#. Discover how to leverage interfaces, composition, and class hierarchies to mimic this powerful feature, enhancinghttps://www.c-sharpcorner.com/UploadFile/b942f9/simulating-multiple-inheritance-in-C-Sharp-part-i/https://www.c-sharpcorner.com/UploadFile/b942f9/simulating-multiple-inheritance-in-C-Sharp-part-i/Wed, 23 Mar 2011 00:00:00 GMTnoreply@c-sharpcorner.com (Vulpes )C# developers who are interested in console programming are often frustrated by the lack of user interface features which the console has compared to Windows Forms and WPF applications.https://www.c-sharpcorner.com/UploadFile/b942f9/creating-a-console-listbox-in-C-Sharp/https://www.c-sharpcorner.com/UploadFile/b942f9/creating-a-console-listbox-in-C-Sharp/Mon, 21 Mar 2011 00:00:00 GMTnoreply@c-sharpcorner.com (Vulpes )How to use integers instead of strings so that we can easily do bit and normal arithmetic with binary numbers.https://www.c-sharpcorner.com/uploadfile/b942f9/simulating-binary-literals-in-C-Sharp/default.aspxhttps://www.c-sharpcorner.com/uploadfile/b942f9/simulating-binary-literals-in-C-Sharp/default.aspxSat, 19 Mar 2011 00:00:00 GMTnoreply@c-sharpcorner.com (Vulpes )Here's a simple technique for converting between signed and unsigned integer arrays.https://www.c-sharpcorner.com/uploadfile/b942f9/how-to-convert-unsigned-integer-arrays-to-signed-arrays-and-vice-versa/default.aspxhttps://www.c-sharpcorner.com/uploadfile/b942f9/how-to-convert-unsigned-integer-arrays-to-signed-arrays-and-vice-versa/default.aspxFri, 18 Mar 2011 00:00:00 GMTnoreply@c-sharpcorner.com (Vulpes )I was recently asked if I could implement DBSCAN algorithm in C# as there appears to be no other implementation which is freely available. Here I am showing to implement this algorithm.https://www.c-sharpcorner.com/UploadFile/b942f9/implementing-the-dbscan-algorithm-using-C-Sharp/https://www.c-sharpcorner.com/UploadFile/b942f9/implementing-the-dbscan-algorithm-using-C-Sharp/Thu, 17 Mar 2011 00:00:00 GMTnoreply@c-sharpcorner.com (Vulpes )The basic idea of cluster analysis is to partition a set of points into clusters which have some relationship to each other. https://www.c-sharpcorner.com/uploadfile/b942f9/implementing-the-qt-algorithm-using-C-Sharp/default.aspxhttps://www.c-sharpcorner.com/uploadfile/b942f9/implementing-the-qt-algorithm-using-C-Sharp/default.aspxThu, 17 Mar 2011 00:00:00 GMTnoreply@c-sharpcorner.com (Vulpes )One of the more interesting types introduced in .NET Framework 4.0 is the Complex structure which models the mathematical entity known as a 'complex number'. This is a number of the form a + bhttps://www.c-sharpcorner.com/UploadFile/b942f9/using-the-complex-type-to-solve-quadratic-equations/https://www.c-sharpcorner.com/UploadFile/b942f9/using-the-complex-type-to-solve-quadratic-equations/Mon, 14 Mar 2011 00:00:00 GMTnoreply@c-sharpcorner.com (Vulpes )Vala is a new programming language based on C# syntax which compiles to C code rather than Common Intermediate language.https://www.c-sharpcorner.com/uploadfile/b942f9/anyone-for-vala/default.aspxhttps://www.c-sharpcorner.com/uploadfile/b942f9/anyone-for-vala/default.aspxWed, 09 Mar 2011 00:00:00 GMTnoreply@c-sharpcorner.com (Vulpes )Given that C# was influenced by C and C++, this is no surprise as enums in those languages only contain constants as well. However, Java allows enums to include methods so how can we do something simihttps://www.c-sharpcorner.com/UploadFile/b942f9/how-to-add-methods-to-an-enum-in-C-Sharp/https://www.c-sharpcorner.com/UploadFile/b942f9/how-to-add-methods-to-an-enum-in-C-Sharp/Mon, 07 Mar 2011 00:00:00 GMTnoreply@c-sharpcorner.com (Vulpes )A mixin is a class which adds functionality to other classes but which cannot itself be instantiated.Creating mixins in C# 4.0 is not a built-in language feature, but you can achieve mixin-like behavihttps://www.c-sharpcorner.com/UploadFile/b942f9/how-to-create-mixin-using-C-Sharp-4-0/https://www.c-sharpcorner.com/UploadFile/b942f9/how-to-create-mixin-using-C-Sharp-4-0/Mon, 07 Mar 2011 00:00:00 GMTnoreply@c-sharpcorner.com (Vulpes )