C# Case insensitive string comparison

2018-06-03 22:30:20

This question already has an answer here:

Case insensitive 'Contains(string)' 22 answers

How to ignore the case sensitivity in List<string> 11 answers

The Contains method has an overload that accepts an IEqualityComparer . You can give it one by doing the following:

 if (list.Contains(test2, StringComparer.OrdinalIgnoreCase))  
 {  
     // do something  
 }

IndexOf has a parameter for case insensitive search

culture.CompareInfo.IndexOf(toSearch, word, CompareOptions.IgnoreCase)

where culture is the instance of CultureInfo describing the language that the text is written in.

You can loop through the list and see if it each list entry matches the search.

让你的list小写......和

if (list.Contains(test2.ToLower()))
{

}

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