CODEWITHSUNDEEP
c#asp.netasp.net-mvcasp.net-mvc-4asp.net-mvc-5
davidf
davidf

Reputation: 170

Receive list of checkboxes in Controller

I have a view where multiple entitys are displayed which the user may then select or not. All of this works fine, however I fail to receive this data in my controller.

Controller:

public class EventOrphans
{
    public int ID { get; set; }

    public string Name { get; set; }

    //...
}

[HttpGet]
public ActionResult FindOrphanedEvents()
{
    //Some Database Logic removed
    List<EventOrphans> list = new List<EventOrphans>();
    return this.View(list);
}

[HttpPost]
public ActionResult FindOrphanedEvents(List<String> events)
{
    //This is where I stuck
}

View:

 @model List<Musa.Controllers.AdminController.EventOrphans>

 @using (Html.BeginForm())
 {  
 <dl class="dl-horizontal">

    @foreach (Musa.Controllers.AdminController.EventOrphans evnt in Model)
    {
        <dt>
            <input type="checkbox" name="@evnt.ID" id="@evnt.ID" checked="checked"/> 
        </dt>
        <dd>
            @evnt.Name               
        </dd>
    }
    </dl>
    <input type="submit" class="btn btn-primary" value="Abschicken" />
}

When I submitt the Page, the request actually hits the Controller, but the Data isnt visbile in the Controller. The content of the request looks as follows: (checked in fiddler)

1=on&2=on&3=on&5=on&6=on&7=on&8=on&9=on&10=on&11=on&12=on&13=on&14=on&15=on&16=on&17=on&29=on&41=on&42=on&53=on&65=on&70=on&71=on&72=on&73=on&77=on

Upvotes: 1

Views: 163

Answers (1)

hutchonoid
hutchonoid

Reputation: 33305

Working example

Model

public class EventOrphans
{
    public int ID { get; set; }

    public string Name { get; set; }

    public bool Checked { get; set; }

}

Note the Checked property

View for loop

@for(var i = 0; i < Model.Count; i++)
{

    <dt>
        @Html.HiddenFor(m => Model[i].ID)
        @Html.HiddenFor(m => Model[i].Name)
        @Html.CheckBoxFor(m = Model[i].Checked)
    </dt>
    <dd>
        @Model[i].Name
    </dd>

}

Note the for loop insted of foreach to enable model binding and the hidden fields to allow the values to be posted back to the controller

http://haacked.com/archive/2008/10/23/model-binding-to-a-list.aspx/

Controller post

[HttpPost]
public ActionResult Index(List<EventOrphans> events)
{
    //All the selected events are available in events

    return View(events);
}

Note the change from a List<string> to List<EventOrphans>

Upvotes: 1

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