C# - Sum List<string[]>

Question

Suppose you have a list<string[]>

  List<string[]> lst = new List<string[]>();

  lst.Add(new string[] { "A", "100.10" });
  lst.Add(new string[] { "B", "250.49" });

How do you get a sum of the second array items in the list?

Will need to convert the second array items to double and sum them up. Expected result is 350.59.

Thank you!

Reed Copsey · Accepted Answer · 2012-10-11 20:19:57Z

10

You could use:

double sum = lst.Sum(i => double.Parse(i[1]));

answered Oct 11, 2012 at 20:19

Reed Copsey

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Comments

DaveShaw · Accepted Answer · 2012-10-11 20:20:47Z

2

You can do it list this:

lst
.Select(item => Decimal.Parse(item[1]))
.Sum()

answered Oct 11, 2012 at 20:20

DaveShaw

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PaulG · Accepted Answer · 2012-10-12 17:51:47Z

1

double total = 0;

foreach(string[] stringArray in lst)
{
    total += Convert.ToDouble(stringArray[1]);
}

answered Oct 11, 2012 at 20:20

PaulG

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Surely you mean ToDecimal()?

@DaveShaw I'd actually think he'd way ToDouble(), considering he's adding into a double...