Enumerable.Last method

Question

I am trying to print the both the value of .First and .Last but only the value of .First() comes up. .Last() just prints my "Text: " word and then blank.

I'v tried chainging the i to different values and that just makes the program worse.

case 2:
    Console.Write("\n\tType a word you want to search for: ");
    string sokord = Console.ReadLine();                           
    for (int i = 0; i < loggList.Count; i++)
    {
        if (loggList[i].First() == sokord)
        {
            Console.WriteLine("\n\tTitel: " + loggList[i].First() + "\n\tText: " + loggList[i].Last());                                       
            break;
        }
    }

I want to get the titel from .First() and the text from .Last().

Are you changing the `List` while you iterating over it? I mean, can this happen? — Alexander Schmidt, Nov 07 '19 at 16:23
@ziNo, so `loggList[i]` is a `string`... and you want first and last letter/char ? — demo, Nov 07 '19 at 16:23
Seems like he is trying to find matching items > Change if (loggList[i].First() == sokord) this to if (loggList[i]== sokord) — N Subedi, Nov 07 '19 at 16:24
@ziNo please show an example of what data you have as input in `loggList` and what data you want to be output. Right now, it is not clear what you want to happen. — Sumner Evans, Nov 07 '19 at 16:25
I just lookup op "sokord", and translates to word/tag. So problably the OP wants to test on the first word. And print the first & last word, not the first and last characters. — GvS, Nov 07 '19 at 16:27
Console.Write("\n\tPick a title: "); loggArray = new string[3]; loggArray[0] = Console.ReadLine(); Console.WriteLine("\n\Type your log: "); loggArray[1] = Console.ReadLine(); loggList.Add(loggArray) — ziNo, Nov 07 '19 at 16:32

score 0 · Answer 1 · answered Nov 07 '19 at 16:37

This is very difficult to guess at, since there isn't enough information about the type of loggList in the question.

I would probably write the code as follow though:

var firstMatch = loggList.FirstOrDefault(l => l.First() == sokord);
Console.WriteLine("\n\tTitel: " + firstMatch?.First() + "\n\tText: " + firstMatch?.Last());

Enumerable.Last method

1 Answers1