![]() ![]() ![]() NET 4 introducing CLR 4.0, service packs notwithstanding. The language and framework are versioned independently, however - as is the CLR, which is at version 2.0 for. There is no such thing as C# 3.5 - the cause of confusion here is that the C# 3.0 is present in. What are the correct version numbers for C#? What came out when? Why can't I find any answers about C# 3.5? Minor features: relax ordering of ref and partial modifiers, parameter null checking, lambda discard parameters, native ints, attributes on local functions, function pointers, static lambdas, extension GetEnumerator, module initializers, and extending partial. Major new features: init-only properties, records, with-expressions, data classes, positional records, top-level programs, improved pattern matching (simple type patterns, relational patterns, logical patterns), improved target typing (target-type new expressions, target typed ? and ?), and covariant returns. Major new features: nullable reference-types, asynchronous streams, indices and ranges, readonly members, using declarations, default interface methods, static local functions, and enhancement of interpolated verbatim strings. Auto-properties' backing fields can now be targeted by attributes. Expression variables in initializers and queries. Unsafe improvements: stackalloc initialization, unpinned indexed fixed buffers, custom fixed statements. New features: enum, delegate and unmanaged generic type constraints. New features: private protected access modifier, Span, aka interior pointer, aka stackonly struct, and everything else. New features: async main, tuple member name inference, default expression, and pattern matching with generics. Major new features: tuples, ref locals and ref return, pattern matching (including pattern-based switch statements), inline out parameter declarations, local functions, binary literals, digit separators, and arbitrary async returns. Features: initializers for automatically implemented properties, using directives to import static members, exception filters, element initializers, await in catch and finally, extension Add methods in collection initializers. ![]() Major features: async programming, and caller info attributes. Major new features: late binding ( dynamic), delegate and interface generic variance, more COM support, named arguments, tuple data type and optional parameters Major new features: lambda expressions, extension methods, expression trees, anonymous types, implicit typing ( var), and query expressions Major new features: generics, anonymous methods, nullable types, and iterator blocks First version to call Dispose on IEnumerators which implemented IDisposable. C# 1.2 (bizarrely enough) released with.These are the versions of C# known about at the time of this writing: ![]() I need to know where it exists in the string. In this case, it isn't enough to just know the exact match exists. RegEx.IsMatch and RegEx.Match are, as far as I can tell, simply boolean searches. So the question is, is there a way to force IndexOf to find only an exact match or is there another way to force that exact whole word match so that I can find the index of that exact match and then perform some useful function with it. The problem is, I don't want SUBTOTAL, but IndexOf finds the first occurrence of the word TOTAL which is in SUBTOTAL which then yields the incorrect value of 34.37. The output of the above code is: // 34.37 String strAmount = Regex.Replace(amount, "", "") Ĭonsole.WriteLine("Press any key to continue.") String amount = str.Substring(indx + "TOTAL".Length, 10) String str = "SUBTOTAL 34.37 TAX TOTAL 37.43" RegEx.Match and RegEx.IsMatch don't seem to get me where I want to be.Ĭonsider the following scenario: namespace test I am seeking a way to search a string for an exact match or whole word match. ![]()
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