Multiselect

@model AweCoreDemo.ViewModels.Input.AjaxDropdownDemoInput
@using AweCoreDemo.Models
@{
    ViewData["Title"] = "AjaxRadioList";
    var mealsDir = Url.Content(DemoUtils.MealsUrl);
}
<script>
    var categories = @Html.Raw(DemoUtils.Encode(DemoCache.Categories.Select(o => new KeyContent(o.Id, o.Name))));
    var meals = @Html.Raw(DemoUtils.Encode(DemoCache.Meals.Select(o => new { k = o.Id, c = o.Name, cid = o.CategoryId, url = mealsDir + o.ImageName })));

    function getMealsChild(params) {
        var pobj = aweUtils.getParams(params);
        var result = [];

        awef.loop(meals, function (item) {
            if (item.cid == pobj.categories)
                result.push(item);
        });

        return result;
    }
</script>

<div class="example med">
    <h2 data-name="cascade">Cascading Radio button list using binding to Parent</h2>
    <div style="min-height: 125px">
        @*begin*@
        @(Html.Awe().AjaxRadioListFor(o => o.ParentCategory)
            .Url(Url.Action("GetCategories", "Data")))
        @(Html.Awe().AjaxRadioListFor(o => o.ChildMeal)
            .Url(Url.Action("GetMeals", "Data"))
            .Parent(o => o.ParentCategory, "categories"))
        @*end*@
    </div>
    <br />
    <br />
    @(Html.Awe().Tabs().Add("description",
        @<text>
            AjaxRadioList needs an url, js func or controller to get data from, it will render a list of radiobuttons<br />
            As with most awesome controls, you can bind the AjaxRadioList to one or more parents,
            and when the parent changes value the child will load and get the parent values as parameters in its data function
        </text>, "expl")
        .Add("view", Html.Source("AjaxRadioListDemo/Index.cshtml"))
        .Add("controller", Html.Csource("Awesome/DataController.cs")))
</div>

<div class="example">
    <h2>Client data</h2>
    <div style="min-height: 110px">
        @*begincd*@
        <script>
            function getClientData() {
                return [{ k: 1, c: 'Fruits' }, { k: 2, c: 'Vegetables' }, { k: 3, c: 'Nuts' }];
            }
        </script>
        @(Html.Awe().AjaxRadioList("CatClient1")
            .DataFunc("getClientData")
            .Value(2))
        @*endcd*@
    </div>
    @(Html.Awe().Tabs().Add("description",
        @<text>Besides remote data using <code>.Url(str)</code>, it can also get data from the client using <code>.DataFunc(jsFunc)</code>, the jsFunc can return the items or a Promise</text>, "expl")
        .Add("view", Html.Source("AjaxRadioListDemo/Index.cshtml", "cd")))
</div>

<div class="example">
    <h2>Using predefined parameters</h2>
    @{
        var cat1 = DemoCache.Categories[0];
        var cat2 = DemoCache.Categories[1];
    }
    setting parameter parent = { @cat1.Name, @cat2.Name } using .Parameter and .ParameterFunc extensions<br />
    @(Html.Awe().AjaxRadioListFor(o => o.Meal1)
        .Parameter("categories", cat1.Id)
        .ParameterFunc("giveParams")
        .Url(Url.Action("GetMeals", "Data")))
    <script>
        function giveParams() {
            return { categories: @(cat2.Id) };
        }
    </script>
</div>

public IActionResult GetMealsTreeImg()
{
    var url = Url.Content(DemoUtils.MealsUrl);

    var res = new List<MealOitem>();
    var meals = mcx.Meals.Include(m => m.Category).ToArray();
    var groups = meals.GroupBy(o => o.Category);
    foreach (var g in groups)
    {
        res.Add(new MealOitem
        {
            Content = g.Key.Name,
            Class = "o-itm",
            NonVal = true,
            Items = g.Select(meal => new MealOitem { Key = meal.Id, Content = meal.Name, url = url + meal.ImageName })
        });
    }

    return Json(res);
}

    @{
        var meal1 = DemoCache.Meals[1];
        var meal2 = DemoCache.Meals[2];
    }
    
    @(Html.Awe().AjaxDropdown("ddApi")
          .Url(Url.Action("ApiGetMeals", "Data")))
    
    <br />
    <br />
    @Html.Awe().Button().Text("Change value to " + meal1.Name).OnClick("app1.changeval(" + meal1.Id + ")")
    @Html.Awe().Button().Text("Change value to " + meal2.Name).OnClick("app1.changeval(" + meal2.Id + ")")

    @Html.Awe().Button().Text("Load only first category").OnClick("app1.loadFirstCat()")
    @Html.Awe().Button().Text("Reload").OnClick("app1.reload()")
    @Html.Awe().Button().Text("Toggle Enable").OnClick("app1.toggleEnable()")
    
    <br />
    <br />
    
    <div id="log">
    </div>

@section scripts
{
<script>
    var app1;

    $(function () {
        var dd = $('#ddApi');

        var o = dd.data('o');
        var api = o.api;

        app1 = {
            changeval: function (newVal) {
                dd.val(newVal).trigger('change');
            },
            reload: function () {
                api.load();
            },
            loadFirstCat: function () {
                api.load({ oparams: { cat1: true } });
                // oparams sets cat1 just for this call
                // params sets persistent parameters
            },
            toggleEnable: function () {
                api.enable(!o.enb);
            }
        };

        dd.on('aweload', function (e, data) {
            awe.flash($('#log').html('loaded ' + data.length + ' items'));
        });
    });
</script>
}

public IActionResult ApiGetMeals(int? v, bool? cat1)
{
    var items = (cat1 == true) ?
        mcx.Meals.Where(o => o.Category == mcx.Categories.First()).ToArray() :
        mcx.Meals.ToArray();

    return Json(items.Select(o => new KeyContent(o.Id, o.Name)));
}