2 add whitespace version; edited body
source | link

C# 399369 Characters

static void Main(string[] a){var b = new[] {123,72,61,109,78,103,119,73,127,111};var g = new[]{" _  ","|","_","| ","|","_","| "};a[0].ToCharArray().SelectMany((x,w)=>g.Select((y,i)=>new{s=((b[x-48]>>i&1)==1)?y:new String(' ',y.Length),j=i,v=w})).GroupBy(z=>(z.j+2)/3).ToList().ForEach(q=>Console.WriteLine(String.Join("", q.OrderBy(l=>l.v).Select(k=>k.s).ToArray())));}

I could easily cut a few characters out. The point was more to abuse LINQ :)

More whitespace version:

static void Main(string[] a)
{
    var b = new[] {123, 72, 61, 109, 78, 103, 119, 73, 127, 111};
    var g = new[] { " _  ", "|", "_", "| ", "|", "_", "| " };
    a[0].ToCharArray().SelectMany(
        (x,w)=>g.Select(
           (y,i)=>new{s=((b[x-48]>>i&1)==1)?y:new String(' ',y.Length),j=i,v=w}))
            .GroupBy(z=>(z.j+2)/3).ToList().ForEach(
            q=>Console.WriteLine(
                String.Join("", q.OrderBy(l=>l.v).Select(k=>k.s).ToArray())));
}

I could easily cut a few characters out. The point was more to abuse LINQ :)

C# 399 Characters

static void Main(string[] a)
{
    var b = new[] {123, 72, 61, 109, 78, 103, 119, 73, 127, 111};
    var g = new[] { " _  ", "|", "_", "| ", "|", "_", "| " };
    a[0].ToCharArray().SelectMany((x,w)=>g.Select((y,i)=>new{s=((b[x-48]>>i&1)==1)?y:new String(' ',y.Length),j=i,v=w})).GroupBy(z=>(z.j+2)/3).ToList().ForEach(q=>Console.WriteLine(String.Join("", q.OrderBy(l=>l.v).Select(k=>k.s).ToArray())));
}

I could easily cut a few characters out. The point was more to abuse LINQ :)

C# 369 Characters

static void Main(string[] a){var b = new[] {123,72,61,109,78,103,119,73,127,111};var g = new[]{" _  ","|","_","| ","|","_","| "};a[0].ToCharArray().SelectMany((x,w)=>g.Select((y,i)=>new{s=((b[x-48]>>i&1)==1)?y:new String(' ',y.Length),j=i,v=w})).GroupBy(z=>(z.j+2)/3).ToList().ForEach(q=>Console.WriteLine(String.Join("", q.OrderBy(l=>l.v).Select(k=>k.s).ToArray())));}

I could easily cut a few characters out. The point was more to abuse LINQ :)

More whitespace version:

static void Main(string[] a)
{
    var b = new[] {123, 72, 61, 109, 78, 103, 119, 73, 127, 111};
    var g = new[] { " _  ", "|", "_", "| ", "|", "_", "| " };
    a[0].ToCharArray().SelectMany(
        (x,w)=>g.Select(
           (y,i)=>new{s=((b[x-48]>>i&1)==1)?y:new String(' ',y.Length),j=i,v=w}))
            .GroupBy(z=>(z.j+2)/3).ToList().ForEach(
            q=>Console.WriteLine(
                String.Join("", q.OrderBy(l=>l.v).Select(k=>k.s).ToArray())));
}
1
source | link

C# 399 Characters

static void Main(string[] a)
{
    var b = new[] {123, 72, 61, 109, 78, 103, 119, 73, 127, 111};
    var g = new[] { " _  ", "|", "_", "| ", "|", "_", "| " };
    a[0].ToCharArray().SelectMany((x,w)=>g.Select((y,i)=>new{s=((b[x-48]>>i&1)==1)?y:new String(' ',y.Length),j=i,v=w})).GroupBy(z=>(z.j+2)/3).ToList().ForEach(q=>Console.WriteLine(String.Join("", q.OrderBy(l=>l.v).Select(k=>k.s).ToArray())));
}

I could easily cut a few characters out. The point was more to abuse LINQ :)