Cannot convert string to char when iterating through a char array C#

Question

Im trying to replace every 2nd character of user entered text to a underscore. I have iterated through a character array but when I try to change a specific character using an index it says "Cannot implicitly convert type 'String' to 'Char'.

What am I doing wrong here? Thanks.

Char[] secondChar = enteredString.ToCharArray();
for (int i = 1; i < secondChar.Length; i += 2)
{
    secondChar[i] = "_";
}
Console.WriteLine(secondChar);

@PatrickArtner, Im trying to replace the 2nd character, OP intentionaly uses index 1 — Fabio
– Fabio, Commented Apr 22, 2018 at 22:24
Yeah, starting at 1 was intentional. I don't know how I blanked on the double quotes, thanks. — Rosco verheij
– Rosco verheij, Commented Apr 22, 2018 at 22:29
If you want to overkill it, use System.Linq: var replaced = string.Join("",enteredString.Select( (ch,idx) => idx%2==1 ? '_': ch)); — Patrick Artner
– Patrick Artner, Commented Apr 22, 2018 at 22:35

Daniel A. White · Accepted Answer · 2018-04-22 22:23:13Z

3

You are using double quotes which indicates a string. Use single quotes instead to indicate char.

secondChar[i] = '_';

answered Apr 22, 2018 at 22:23

Daniel A. White

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