koobas.hobune.stream
[Answered] NullReference problem with dictionary
Hi,
I'm having issues dealing with a dictionary that I want to use to keep track of what dialog has been said.
In both cases, the key doesn't exist in the dictionary. When I do this, things are fine.
void Start(){
Dictionary<int, string> saidDialogs = new Dictionary<int, int>();
saidDialogs.TryGetValue(dIndex, out dictResult);
}
But when I do this, I get constant NullReferenceExceptions:
void Start(){
Dictionary<int, int> saidDialogs = new Dictionary<int, int>();
}
void Update(){
CheckForDialog();
}
void CheckForDialog(){
saidDialogs.TryGetValue(dIndex, out dictResult);
}
Any idea why?
Best Answer
Your dictionary should be a member of the class.
class DialogThing {
Dictionary<int, int> saidDialogs;
void Start() {
saidDialogs = new Dictionary<int,int>();
}
}
Basically the rest as you've got it should be fine from what I can see.
Ah thanks. Looks like the problem was that I was declaring the dictionary as a class member, and then in Start(), redeclaring it with "Dictionary saidDialogs = new Dictionary();"
Once I removed that "Dictionary" from the second part, things started working.
Thanks so much for all the help!
