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POCombining Razor, Ajax, JSON
 

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  1. POCombining Razor, Ajax, JSON
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    <p>I try to make following parts run, but always failed. The objective is: if a target in combobox is selected, the mediaId's combobox should be filled with respective values. At this moment I just emulate the values of mediaId combobox. Can anyone show me how to combine them correctly? Thx in advance.</p> <p>The view Medium.cshtml:</p> <pre><code>&lt;script src="@Url.Content("~/Scripts/PartialLoad.js")" type="text/javascript"&gt;&lt;/script&gt; &lt;div class="editor-label"&gt; @Html.LabelFor(model =&gt; model.Files[i].TargetId) &lt;/div&gt; &lt;div class="editor-field"&gt; @Html.DropDownListFor(model =&gt; model.Files[i].PTargetId, (ViewData["targets"] as SelectList).MakeSelection(Model.Files[i].PTargetId)) &lt;/div&gt; &lt;div class="editor-label"&gt; @Html.LabelFor(model =&gt; model.Files[i].MediaId) &lt;/div&gt; &lt;div class="editor-field"&gt; @Html.DropDownListFor(model =&gt; model.Files[i].MediaId, (ViewData["mediaIds"] as SelectList).MakeSelection(1)) &lt;/div&gt; </code></pre> <p>The javascript partialload.js</p> <pre><code>$(document).ready(function () { $("#targets").change(function () { GetMValues("#targets", "#mediaIds"); }); }); function ClearDrop(objSource) { $(objSource).empty(); } function GetMValues(objSource, objDest) { var url = '/GetMValues/'; $.getJSON(url, { id: $(objSource).val() }, function (data) { ClearDrop(objDest); $.each(data, function (index, optionData) { $(objDest).append("&lt;option value='" + optionData.Value + "'&gt;" + optionData.Text + "&lt;/option&gt;"); }); }); } </code></pre> <p>The homecontroller.cs</p> <pre><code>public ActionResult GetMValues(String id) { int myId = 0; int.TryParse(id, out myId); var mediumIds = new List&lt;long&gt;(); int max = myId + 3; // just to emulate the data in the list for ( long l = 1 ; l &lt; max ; l++ ){ mediumIds.Add(l); } var select = new SelectList(mediumIds, "PTargetId", "TargetId"); return Json(select, JsonRequestBehavior.AllowGet); //allow get needed to allow get calls } </code></pre>
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    1. COAre you sure `'/GetMValues/'` is the correct URL? Seems like it should be `'/Home/GetMValues/'` for a HomeController.
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    2. CODoes /home/getmvalues/ or /getmvalues/ return the correct JSON?
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      1. USMartin
 

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Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

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