substring - Weird behavior with indexof method in c# -


i have code, entities list <string> received parameter. tried cast entities[x] string in way possible, being string. checked entities[x] string returning true.

for(int x = 0; x < entities.count; x++) {     console.writeline(entities[x] + " " +  "a pencil g smartboard tabletc pencil ".indexof(entities[x])); }

the result is:

pencil 30 smartboard 11 tabletc -1

why indexof returns -1 "tabletc"?

the string input begins backspace character, ascii 8.

try like

"... \btabletc ...".indexof(entities[2])

where \b means backspace character.


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