How initializing List that is in class in another C# class to fill the list

Question

I have this class in C#:

   public class Init
       {
          public string First_name { get; set; }.
          public List<LeadLocations> Locations { get; set; }
        }
   public Init()
    {
        this.Locations = new List<LeadLocations>();

    }

 public class LeadLocations
{
    public string City { get; set; }
    public string State { get; set; }
    public string County { get; set; }
}

I need to fill Locations with values that I have in another list like:

        foreach (var item2 in AreaOfInterest.AreaOfInterests)
                {

                    foreach (var item in transactionInit.Locations)
                    {
                        item.City = item2.City;
                        item.County = item2.County;
                    }
           }

but it never goes to second foreach as it is empty. How I can initialize it to new object, anything I try is not working.

you class is wrongly formatted . is it a clone of source ? or it's errors in posting question ? — A Farmanbar
– A Farmanbar, Commented Feb 1, 2020 at 0:47
You haven't supplied enough information to answer this question, it also contains a fair amount of ambiguity as to what is happening. For starters where is AreaOfInterest.AreaOfInterests initialized and populated. Does your break point get hit on this line foreach (var item in transactionInit.Locations) — TheGeneral
– TheGeneral, Commented Feb 1, 2020 at 2:03

Jawad · Accepted Answer · 2020-02-01 00:55:44Z

1

If you are trying to add location to a list of locations, you need to create a new location object (based on the AreaOfInterests objects) and then add that to the list of locations.

// Initialize your Locations if its not already initialized. 
//   If its not initialized, you will get Object Reference Not Set to Instance of an Object.
transactionInit.Locations = new List<LeadLocations>();
foreach (var item2 in AreaOfInterest.AreaOfInterests)
{
    // For Each item2, create a new location then insert it in transactionInit.Locations.
    var leadLocation = new LeadLocation() {City = item2.City, County = item2.County};
    transactionInit.Locations.Add(leadLocation);
}

answered Feb 1, 2020 at 0:55

Jawad

11.4k3 gold badges28 silver badges43 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

Anu Viswan · Accepted Answer · 2020-02-01 02:17:10Z

0

I believe I understood what you are intending to do. You could do the following.


transactionInit.Locations.AddRange(AreaOfInterest.AreaOfInterests
                                                .Select(x=> new Location
                                                        {
                                                          City = x.City,
                                                          County=x.County
                                                        });

In the above code, you are iterating over the AreaOfInterest.AreaOfInterests to create instances of Location and using the List.AddRange(IEnumerable<T>) to add them to the Locations property of transactionInit.

answered Feb 1, 2020 at 2:17

Anu Viswan

18.2k4 gold badges27 silver badges53 bronze badges

Collectives™ on Stack Overflow

How initializing List that is in class in another C# class to fill the list

2 Answers 2

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related