Can I put multiple statements in a interpolated string in C# 6?

Question

In Ruby, I can put multiple statements in a interpolated string, eg.

puts "#{a = 1; b = 2; a + b;}"

Or I can put them in multiple lines like this:

puts "#{a = 1;
b = 2;
a + b;}"

Can I do the same thing in C# 6? I've tried but failed. Below is my C# code.

Console.WriteLine($@"haha
{int a = 1;
 int b = 2;
 a+b;}
heihei");

When I try to run the C# program, I got:

CS1525 Invalid expression term 'int'
CS1073 Unexpected token 'a'

I hope someone can help.

I'm not sure I've what you mean. But I think you can simply use @ Like this: Console.WriteLine($@"haha {int a = 1; int b = 2; a+b;} heihei"); — Mohammad Mirmostafa
– Mohammad Mirmostafa, Commented Dec 1, 2015 at 7:42
@Rob 1. Multiple statements - not possible. 2. Multiline - possible. — i3arnon
– i3arnon, Commented Dec 1, 2015 at 7:43

Patrick Hofman · Accepted Answer · 2015-12-01 07:40:47Z

4

You can't have full code blocks in your string interpolation statements. You can only do evaluations inside.

So this works (pulled the variables outside):

int a = 1;
int b = 2;
Console.WriteLine($@"haha
{a+b}
heihei");

And this too (do evaluation only):

Console.WriteLine($@"haha
{1+2}
heihei");

answered Dec 1, 2015 at 7:40

Patrick Hofman

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Comments

Anil Yadav · Accepted Answer · 2015-12-01 07:53:48Z

0

Ruby is different then C# in your case you write full code in your string interpolation so it's not working.

Console.WriteLine($"Name = {name}, hours = {hours:hh}")

or

Console.WriteLine($@"haha {1+2} heihei");

answered Dec 1, 2015 at 7:53

Anil Yadav

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