c#: switch multiple values in case 1,2,3 using extension methods in(1,2,3)
I want to check if a variable contains one of several values, and if so do something about it.
Here's the usual switch way:
switch (value)
{
case 1:
case 2:
case 3:
//do some stuff
break;
case 4:
case 5:
case 6:
//do some different stuff
break;
default:
//default stuff
break;
}
Does that feel ok to you?
To me it's just feels too verbose and cludgy.
In VB it's possible to write like this:
Select Case value
Case 1 To 3
'do some stuff
Case 4, 5, 6
'do some different stuff
Case Else
'default stuff
End Select
which is way more elegant.
So how do we get this in c#?
I ended up with this solution:
if(value.In(1,2,3))
{ /* do some stuff */ }
else if (value.In(4,5,6))
{ /* do some different stuff */ }
else
{ /*default stuff */ }
You likey - likey? ;)
And it's also more flexible than a switch statement.
The magic behind is just this sweet little extension method:
public static class Extensions
{
public static bool In<T>(this T t, params T[] values)
{ return values.Contains(t); }
}
Me likey
Henri
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