c# - Not removing a substring from a string -

i trying remove substring string in simple code. c# not removing it:

stringcmd = "haha wowi in love!" stringcmd.remove(stringcmd.indexof("wow"), 5); 

after removing should "haha in love!"

string.remove method returns new string without modifying 1 passed parameter, have assign variable:

stringcmd = stringcmd.remove(stringcmd.indexof("wow"), 5); 

you should aware strings in .net immutable. can read more on msdn: string (c# reference).