Question

I have to store two key one value in dictionary. So that i am using like this.

Dictionary<int, Dictionary<int, int>> dicThreatPurgeSummary = new Dictionary<int,Dictionary<int,int>>();

I have added key, key and value.

Dictionary<int, int> innerdict = new Dictionary<int,int>();
innerdict.Add(Month, Count);
dicThreatPurgeSummary.Add(Group, innerdict);

i am able to view value like this

int a = dicThreatPurgeSummary[Group][Month];

I need to update the value for dicThreatPurgeSummary[Group][Month] if it already exists. Please help me to find out this.

Answer 1

This should work

if(dicThreatPurgeSummary.ContainsKey(Group) &&
   dicThreatPurgeSummary[Group].ContainsKey(Month))
{
    dicThreatPurgeSummary[Group][Month] = NewValue;
}