contains not working for special characters

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contains not giving proper result for special charcters

C#

var searchstring = "?/!@#$$%^&*";


bool isworking = searchstring.Contains("?/!@#$$%^&*");

i am getting isworking as false

Posted 22-Jul-15 4:28am

Member 11855350

Updated 22-Jul-15 4:40am

Andy Lanng

v2

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Andy Lanng 22-Jul-15 10:40am

Works for me.

Is this the only code involved? I literally copy+pasted the first 2 lines and isworking == true

Member 11855350 23-Jul-15 2:36am

but i am getting false

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OriginalGriff · Answer 1 · 2015-07-22T05:07:00

It's possible that the code you show is not what you mean: Contains matches the whole string as-is as a substring in the original - so if the input string does not contain every character in the "match string" in exactly the same order and with no intervening characters, the match will return false.
So

C#

"ABCD".Contains("BC")

will return true, while

C#

"AB.CD".Contains("BC")

will return false.

string.Contains does not support wildcards, so if you want that you will need a Regex, and if you want "contains any of these characters" instead of a string match then you want IndexOfAny[^]