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PODisable MVC "must be a number" data type validation for a field
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copied!<p>I have a Telerik MVC ComboBox which contains a list of locations. The client wants the end user to be able to directly enter new locations into the list.</p> <p>Upon submitting the form, it should accept a new value and insert into the locations table, and of course update the LocationID of the record being added to the ID of the newly inserted location.</p> <p><em>Read below for code snippets</em></p> <p>I've read that the ComboBox does allow you to enter in values that are not in the list, and used the demo (<a href="http://demos.telerik.com/aspnet-mvc/combobox/servervalidation" rel="nofollow">Here</a>)</p> <p>Code to save location, edit locationID is not a problem. My problem here is that my Combo box contains a list of integer/string value pairs, not string/string. And thus, the issue I have in my code is that if I try and submit a new location name, it tries to validate it and says its not a number.</p> <p><strong>I need a way to try and suppress this validation, just for the LocationID field, but still protect against null values.</strong></p> <pre>BEGIN EDITS</pre> <p><strong>EDIT:</strong> I did find <a href="http://www.go4answers.com/Example/client-side-validation-suppressing-167251.aspx" rel="nofollow">this post</a>, but as the OP there says, the javascript hack is not very extensible, so I really want to avoid it.</p> <p><strong>EDIT:</strong></p> <p>I ended up using the javascript hack, its all I've found which works. I plan to encapsulate this in a method or attribute, and post it as an answer.</p> <p>I found that with this hack, it did not work in Firefox or Chrome if I place the code block inside the document ready event using Telerik().ScriptRegistrar().OnDocumentReady(), the properly <em>window.mvcClientValidationmetadata</em> is somehow cleared when it reaches this event, even though the metadata are properly pushed in originally.</p> <p>To get around this, I had to manually put the code in its own script block just under the form closing tag (which is where the client-side validation array is rendered).</p> <pre>END EDITS</pre> <p>Additionally, right now I'm binding to my model directly like so:</p> <pre><code> public JsonResult Create(MyEntity Model) </code></pre> <p>I'm not sure how that's going to work out when it comes time to do model binding, I'm guessing it may just return an error, and I won't even reach my action method code. </p> <p>So I guess the idea here would be to use a FormCollection in the method signature, detect for a non-integer LocationID, insert update, and then run UpdateModel()? Of course, welcome to better suggestions.</p> <p>Thanks!</p> <p><strong>Code Snippets</strong></p> <p><strong>Model:</strong></p> <pre><code>class IntegerValueList { public Int16 ID { get; set; } public string Name { get; set; } } var lists = new Dictionary<string, IEnumerable<object>>(); lists["Locations"] = (from record in db.Locations orderby record.Name select new IntegerValueList { ID = record.LocationID, Name = record.Name }).ToList(); </code></pre> <p><strong>Controller:</strong></p> <pre><code> LocationList = new SelectList(lists["Locations"], "ID", "Name", LocationID); </code></pre> <p><strong>View:</strong></p> <pre><code> <td> <div class="editor-field"> <%: Html.Telerik().ComboBoxFor(model => model.LocationID) .BindTo(Model.LocationList) .Filterable(c => c.FilterMode(AutoCompleteFilterMode.Contains)) %> <%: Html.ValidationMessageFor(model => model.LocationID, "*") %> </div> </td> </code></pre>

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