c# - Out of bounds exception on incrementing variable -

i've been while out of c# , mvc. , struggling following error, don't see it. have list of restrictions , want add keys string[].

int cntr = 0; //loop through restrictions , add array foreach (var restriction in this.admingrouprepository.context.adminrestrictions.tolist()) {     currentrestrictionkeys[cntr] = restriction.key;     cntr += 1; } 

this error on cntr += 1 line:

index outside bounds of array. 

i don't understand comes from, foreach breaks before cntr out of array's bounds right?

you have allocated little space currentrestrictionkeys. don't need preallocate @ all; can use trivial projection linq:

var currentrestrictionkeys = this.admingrouprepository.context.adminrestrictions                                  .select(r => r.key)                                  .toarray();