CODEWITHSUNDEEP
c#asp.net-mvcasp.net-mvc-4foreachpartial-views
Ken'ichi Matsuyama
Ken'ichi Matsuyama

Reputation: 369

Iterating multiple items from list in MVC C#

I am not sure how to do this in MVC, in normal code I would just iteratre in my loop and write the item, but I am lost doing this in MVC. In this program I am reading RSS feed from World of Warcraft site. I've got this method:

public ActionResult Bar()
{
    List<string> temat = new List<string>();
    List<string> podpis = new List<string>();
    List<DateTime> czas = new List<DateTime>();
    string url = "http://eu.battle.net/wow/en/feed/news";
    using (XmlReader reader = XmlReader.Create(url))
    {
        SyndicationFeed feed = SyndicationFeed.Load(reader);

        foreach (SyndicationItem item in feed.Items)
        {
            String subject = item.Title.Text;
            String summary = item.Summary.Text;
            DateTime date = item.PublishDate.DateTime;

            temat.Add(subject);
            podpis.Add(summary);
            czas.Add(czasy);
        }
    }
    reader.Close();
    ViewBag.tytul = temat;
    ViewBag.opis = podpis;
    ViewBag.c = czas;
    return PartialView("_Bar");
}

And in my partialView I can get to each item from ViewBag like this:

<div class="row">
    @foreach (var o in ViewBag.opis)
    {
        <p>@Html.Raw(@o)</p>
    }
</div>

But I need to iterate like this:

"item1" from "list1" => "item1" from "list2" => "item1" from "list3" => "item2" from "list1" => ETC...

I don't know how to do this in this View, can someone help me?

Upvotes: 1

Views: 2058

Answers (2)

MajkeloDev
MajkeloDev

Reputation: 1661

So, You need to create a class for it because Your approach makes no sense. Let's create a class:

public class MyModel
{
  public string Topic { get; set; }
  public string Signature { get; set; }
  public DateTime Time { get; set; }
}

Later on let's change Your Controller to this:

public ActionResult Bar()
{
    List<MyModel> _model = new List<MyModel>();
    using (XmlReader reader = XmlReader.Create(url))
    {
        SyndicationFeed feed = SyndicationFeed.Load(reader);

        foreach (SyndicationItem item in feed.Items)
        {
            var newItem = new MyModel();
            newItem.Topic = item.Title.Text;
            newItem.Signature = item.Summary.Text;
            newItem.Time = item.PublishDate.DateTime;

            _model.Add(newItem);
        }
    }
    return PartialView("_Bar", _model); 
}

Now You have strongly typed model in Your View so just add a namespace on top(lets assume MyModel is in the xxx.Models namespace):

@model  IEnumerable <xxx.Models.MyModel>

Now You can iterate throughout this with intellisense liek this:

@foreach (var item in Model)
{
    <p>item.Topic</p>
    <p>item.Signature</p>
    <p>item.Time</p>
}

Upvotes: 1

Kram
Kram

Reputation: 526

First of all, build a new class that will hold your data.

Class WOWClass
{
    public string temat {get;set;}
    public DateTime czas {get;set;}
}

Then populdate a list of WOWClass instead of 3 lists...

public ActionResult Bar()
{
    List<WOWClass> list = new List<WOWClass>();
    string url = "http://eu.battle.net/wow/en/feed/news";
    using (XmlReader reader = XmlReader.Create(url))
    {
        SyndicationFeed feed = SyndicationFeed.Load(reader);

        foreach (SyndicationItem item in feed.Items)
        {
            //populate your list
        }
    }
    return PartialView("_Bar", list);
}

And finally this is the view:

<div class="row">
    @foreach (var o in Model)
    {
        Temat: <p>@Html.Raw(o.temat)</p>
        Czas: <p>@Html.Raw(o.czas)</p>
    }
</div>

Upvotes: 0

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