Use
StringComparison.OrdinalIgnoreCase for case insensitive comparisons CS-R1017
Anti-pattern
Major
a month ago
—
a month old
Use
StringComparison.OrdinalIgnoreCase to perform case in-sensitive comparison122 var tmpVal = s.Trim();
123 if (!string.IsNullOrEmpty(tmpVal))
124 {
125 buffer.Append(tmpVal.Substring(0, 1).ToUpper(_Info) + tmpVal.Substring(1).ToLower(_Info)).Append(" ");126 }
127 }
128
Description
While converting strings to lower/upper case and then comparing might work to perform a case insensitive comparison, the safer, reliable, and performant alternative is to invoke the string.Equals method while specifying the StringComparison.OrdinalIgnoreCase enum.
Examples
Bad Practice
var areEqual = str1.ToLower() == str2.Lower();
Recommended
var areEqual = string.Equals(str1, str2, StringComparison.OrdinalIgnoreCase);