How To Modify An Element in the Dictionary Class?

How To Modify An Element in the Dictionary Class?
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C# has this cool Dictionary class that you can use like a Hash Table. Is there a way of changing the value of an indexed element without resorting to removing it like this?

int value = runningcount[city];
runningcount.Remove(city);
runningcount.Add(city, ++value);

According to this, you should be able to just write:
++runningcount[city];

or
runningcount[city]++;

Did you try that?
The indexer of the Dictionary class provides both get and set capabilities, even creates a new entry if the specified one doesn't exist already.

Yeah. As Cthulhu said, that should work. You can also update or add using this pattern:

Code:

---

if( dict.TryGetValue(key, out val) )
    dict[key] = newVal  //Update on key exist
else
    dict.Add(key, newVal)  //Add on key not exist

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You can also use ContainsKey:

Code:

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if(dict.ContainsKey(key)){
    dict[key]=value;
}else{
    dict.Add(key,value);
}

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That cat will get skinned one way or the other :-) Good luck!