The string. Contains() method in C# is case sensitive . And there is not StringComparison parameter available similar to Equals() method, which helps to compare case insensitive.4 Oca 2014
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OrdinalIgnoreCase parameter specifies to the compiler to ignore the case while finding the index . The following code example shows us how we can create a case insensitive contains(string) function with the string. IndexOf() function and StringComparison. OrdinalIgnoreCase as the parameter in C#.13 Mar 2021
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