Question

My scenario :

I have an object, lets call it object1 which looks like this :

object1{
string commaSeparatedListOfIds;
DateTime time;
int passes;
...
irrelvant properties
...
}

What I wish to do is split commaSeparatedListOfIds for each id value, and save each one in it’s own object (object2), with the relevant other properties.

object2{
int id;
DateTime time;
int passes;
}

This duplicates information, but for the method I want to write any other solution will be horrifically messy.

What I have tried is :

 List<object2> newObjects = new List<object2>(object1.commaSeparatedListOfIds.Split(',').Select(
                        new object2{
                        id int.Parse,
                        time = object1.time
                        passes = object1.passes
                        }).ToList<object2>());

but this will not build.

Can anyone help me do what I wish as elegantly as possible please ? I realise it would be possible with two loops and some horrible code, but I know there’s a nice looking solution out there somewhere! 🙂

Answer 1

I believe you want something like:

 List<object2> newObjects = object1.commaSeparatedListOfIds.Split(',')
                                   .Select(str =>
                                        new object2
                                        {  
                                           id = int.Parse(str),
                                           time = object1.time,
                                           passes = object1.passes
                                        })
                                   .ToList();