I have a view model with a from that includes a set of checkboxes. I need the check boxes to map to an array when binding in the post back method of my controller.
Here's the view model.
@model TMDM.Models.TestSeriesCreateViewModel
@{
ViewBag.Title = "Create";
}
<h2>Create a Test Series</h2>
@using (Html.BeginForm()) {
@Html.ValidationSummary(true)
<fieldset>
<div class="editor-label">
@Html.LabelFor(model => model.Title)
</div>
<div class="editor-field">
@Html.EditorFor(model => model.Title)
@Html.ValidationMessageFor(model => model.Title)
</div>
<h3>Which Test Collections are in this Test Series?</h3>
<div class="editor-field">
@{
var i = 0;
foreach (var testCollection in Model.TestCollections)
{
<input type="checkbox" id="ChosenTestCollectionIds[@i]" name="ChosenTestCollectionIds[@i]" value="@testCollection.Id" />
<span>@testCollection.Title</span>
<br />
i++;
}
}
</div>
<p>
<input type="submit" value="Save" class="medium green awesome" />
@Html.ActionLink("Cancel", "Index", "TestSeries", null, new { @class = "medium black awesome" })
</p>
</fieldset>
The form is rendering fine, I've checked the source and each output check box has a different number for their id and name fields.
<input type="checkbox" id="ChosenTestCollectionIds[0]" name="ChosenTestCollectionIds[0]" value="5" />
<input type="checkbox" id="ChosenTestCollectionIds[1]" name="ChosenTestCollectionIds[1]" value="6" />
//etc...
Here is the view model.
public class TestSeriesModel
{
public int Id { get; set; }
public string Title { get; set; }
}
public class TestSeriesCreateViewModel : TestSeriesModel
{
public List<ITestCollectionDataObject> TestCollections { get; set; }
public int[] ChosenTestCollectionIds { get; set; }
}
Problem I'm having is that when the form posts back the ChosenTestCollectionIds array comes back null. What am I doing wrong here?
ANSWER
I've worked out how to do it:
<input type="checkbox" id="[@i]" name="ChosenTestCollectionIds" value="@testCollection.Id" />
