I want the directory to be replaced with a space " ", how can I do it?

Question

When MultiVal is null, I want it to be replaced by a space " ", how can I do it?

var selectedComponents=string.Join(',', MultiVal);
sb.Replace("{components}",selectedComponents);

Perhaps `var selectedComponents=string.Join(',', MultiVal??" ");`, See: https://learn.microsoft.com/en-us/dotnet/csharp/language-reference/operators/null-coalescing-operator — Ibrennan208, Aug 10 '22 at 18:55

score 1 · Answer 1 · edited Aug 10 '22 at 19:07

1

If I understood correctly

var selectedComponents = MultiVal == null ? " " : string.Join(',', MultiVal);
sb.Replace("{components}", selectedComponents);

edited Aug 10 '22 at 19:07

Dmitry Bychenko

answered Aug 10 '22 at 18:56

yassinMi

Henrique · Answer 2 · 2022-08-10T18:56:50.067

0

You could do something like:

var selectedComponents = string.Join(',', MultiVal ?? "");
sb.Replace("{components}",selectedComponents);

edited Aug 10 '22 at 18:56

answered Aug 10 '22 at 18:55

Henrique

score 0 · Answer 3 · answered Aug 10 '22 at 19:01

0

var selectedComponents = string.Join(',', MultiVal ?? new string[] {" "});

answered Aug 10 '22 at 19:01

Jeremiah Cooper

score 0 · Answer 4 · answered Aug 10 '22 at 19:01

Hope you are looking for something like this. If MultiVal is not null you can place another string where it says string.Empty:

var selectedComponents = string.Join(",", MultiVal == null? " " : string.Empty);

Or you can just simply check if MultiVal is null:

    if (MultiVal == null)
    {
        selectedComponents = string.Join(",", " ");
    }

4 Answers4