CODEWITHSUNDEEP
c#dictionary
bluejuggernaut
bluejuggernaut

Reputation: 17

Need to get count of array items in my dictionary

I created a dictionary with the key of type string and the values of type string[]. i am having a hard time figuring out how to get the count of the array in the dict. so i know dict.count returns the number of dictionary pairs but not sure how to get the count of the array

Dictionary<string, string[]> csvFileNameSheetName = new Dictionary<string, string[]>();

i tried this but obviously wont work

 for (int idx = 0; idx < csvFileNameSheetName.Values.Count; idx++)

what i need is something like csvFilenameSheetName.values.Values.count

Upvotes: 1

Views: 639

Answers (3)

CodeReaper
CodeReaper

Reputation: 895

int count = csvFileNameSheetName.Aggregate(0, (r, kvp) => r = r + kvp.Value.Count());

OR

var count = 0;
foreach(var strArr in csvFileNameSheetName.Values)
{
    count += strArr.Length;      
}

Upvotes: 0

Hogan
Hogan

Reputation: 70523

Use linq

int c = csvFileNameSheetName.Aggregate(0, (r, i) => r = r +  i.Value.Count());

Upvotes: 0

Nigel
Nigel

Reputation: 3291

Use Linq's SelectMany to put all the string[] items into a single enumeration:

csvFileNameSheetName.SelectMany(kvp=>kvp.Value).Count(); //using System.Linq

Or for better performance you can use Sum to add up the counts:

csvFileNameSheetName.Sum(kvp=>kvp.Value.Length); //using System.Linq

Upvotes: 1

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