I tried to append the items in a List<string> to a StringBuilder with LINQ:
items.Select(i => sb.Append(i + ","));
I found a similar question here which explains why the above doesn't work, but I couldn't find an Each of ForEach or anything similar on List which I could use instead.
Is there a neat way of doing this in a one-liner?
items.ForEach(item => sb.Append(item + ","));
You could use a simple foreach loop. That way you have statements which modify the StringBuilder, instead of using an expression with side-effects.
And perhaps your problem is better solved with String.Join(",", items).
String.Join. Sometimes I really need to break out of my Linq wankathon and remember how people programmed before :)Try this:
String [] items={"Jan","Feb","Mar"};
StringBuilder sb=new StringBuilder();
foreach(var entity in items)
{
sb.Append(entity + Environment.NewLine);
}
Textbox1.Text=sb.tostring();
Output:
Jan
Feb
Mar
