![]() ![]() The array is sorted using the StringComparer.CurrentCulture. Each subsequent comparison subdivides the remaining part of the collection in half. A binary search starts in the middle of the collection to determine which half of the collection would contain the sought string. Once the array is sorted, you can search for entries using a binary search. Specify Ordinal to demonstrate the different behavior.Īrray.Sort(lines, StringComparer.CurrentCulture) This example shows how to sort an array of strings using the current culture: string lines = new order:") You use the static Array methods that take a System.StringComparer parameter. The following examples show how to sort and search for strings in an array using a linguistic comparison dependent on the current culture. Linguistic sorting and searching strings in arrays Even strings that contain identical characters might sort differently depending on the culture of the current thread. The characters and sorting conventions of these strings might vary depending on the locale of the user's computer. If (compareOrdinal is less than using ordinal comparison") Ĭonsole.WriteLine($" is greater than using ordinal comparison") Ĭonsole.WriteLine($" and are equivalent in order using ordinal comparison") Ĭulture-sensitive comparisons are typically used to compare and sort strings input by users with other strings input by users. If (compareLinguistic is less than using en-US culture") Ĭonsole.WriteLine($" is greater than using en-US culture") Ĭonsole.WriteLine($" and are equivalent in order using en-US culture") Int compareOrdinal = String.Compare(one, two, StringComparison.Ordinal) Int compareLinguistic = String.Compare(one, two, en, ) Void showComparison(string one, string two, culture) The following example demonstrates that: string root = root2 = result = root.Equals(root2) Ĭonsole.WriteLine($"Ordinal comparison: and are equal.") In the case of String.Equals, a StringComparison argument can be provided to alter its sorting rules. Perform a case-sensitive, ordinal comparison. String.Equality and String.Inequality, that is, equality operators = and !=, respectively.These sameness checks are similar toĮquality, but some differences, such as case differences, may be ignored. It is easier to search, both for software and for humans. When you compare strings, you define an order among them. The modified code either runs in the interactive window or, if compilation fails, the interactive window displays all C# compiler error messages. Once you execute the code, you can modify it and run the modified code by selecting Run again. Select the Run button to run an example in an interactive window. The C# examples in this article run in the Try.NET inline code runner and playground. ![]()
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