The analyzer detected a comparison of two strings whose characters are in different cases.
Consider the following example:
void Some(string s) { if (s.ToUpper() == "abcde") { .... } }
After casting the 's' variable's value to upper case, the resulting string is compared with a string where all the characters are lowercase. As this comparison is always false, this code is incorrect and can be fixed in the following way:
void Some(string s) { if (s.ToLower() == "abcde") { .... } }
Consider another example:
void Some() { string s = "abcde"; .... if (s.Contains("AbCdE")) { .... } }
While all the characters of the 's' variable's value are lowercase, an attempt is made to check if the string contains a mixed-case substring. Obviously, the 'Contains' method will always return 'false', which also indicates an error.
This diagnostic is classified as:
You can look at examples of errors detected by the V3122 diagnostic. |