get item index in Foreach

Question

I have MyCustomMacro that returns me list of strings. I need to show this list with custom separator beetwen list elements.

{% 
foreach (ev in MyCustomMacro("events") )
{ 
  ev + " | "; 
};
#%}

but this code also addes " | " after last element.

How can i check that element is last in the list?

Possible duplicate of [How do you get the index of the current iteration of a foreach loop?](http://stackoverflow.com/questions/43021/how-do-you-get-the-index-of-the-current-iteration-of-a-foreach-loop) — Bryan, Mar 22 '16 at 13:02

score 3 · Answer 1 · answered Mar 22 '16 at 15:07

3

if you can get the values in a string array, you can do:

string.Join("|", events[])

Examples

answered Mar 22 '16 at 15:07

Zach Perry

736
3
12

Chetan Sharma · Answer 2 · 2016-04-11T16:36:42.833

2

I think a much efficient way is to use string StringBuilder class.

Something on these lines.

{%
  var builder = new StringBuilder();
  foreach (ev in MyCustomMacro("events") )
  { 
    builder.append(ev + " | "); 
  };
  result = String.Join("|", builder.Split('|'));
%}

edited Apr 11 '16 at 16:36

answered Apr 11 '16 at 16:27

Chetan Sharma

1,260
11
13

score 0 · Answer 3 · answered Mar 22 '16 at 13:19

0

You can do it easly by this:

{% result="";
   foreach (ev in MyCustomMacro("events") )
    { 
     result+= ev + " | "; 
    };
   result.TrimEnd(" | ")
%}

answered Mar 22 '16 at 13:19

Dawid Jachnik

447
2
4

This works but somewhat of a hack. Use a method which is already created for this like `string.Join()` – Brenden Kehren Mar 22 '16 at 23:58

score -1 · Accepted Answer · answered Mar 22 '16 at 16:53

-1

You can use join method of string class:

{% string.join("|", MyCustomMacro("events")) %}

answered Mar 22 '16 at 16:53

Anton Grekhovodov

277
1
6

This code works only in Kentico CMS, it's a K# macro expression. In C# you need to use only `string.join("|", new string[]{})` – Anton Grekhovodov Mar 25 '16 at 15:43

get item index in Foreach

4 Answers4