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POCompleting the modelstate after autocompletion
 

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    <p>So here is the problem i'm running into.</p> <p>Originally, I was populating the recipient field with a select list of users that one would have friended first.</p> <p>That didn't seem user friendly enough to me. So, I started working on an autocomplete with jQuery. The autocomplete works like a charm.</p> <p>The issue i'm running into is when I send the message, my <code>modelstate</code> isn't valid as the Message. The recipient only has the username filled in.</p> <p>Should I get rid of the validation and manually fill all these fields? Or can I do something smarter with this issue?</p> <pre><code>&lt;div class="label"&gt;@Html.LabelFor(model =&gt; model.Receiver.UserName)&lt;/div&gt; &lt;div class="fullinput"&gt;@Html.TextBoxFor(model =&gt; model.Receiver.UserName)&lt;/div&gt;&lt;br /&gt; &lt;div class="label"&gt;@Html.LabelFor(model =&gt; model.Subject)&lt;/div&gt; &lt;div class="fullinput"&gt;@Html.TextBoxFor(model =&gt; model.Subject)&lt;/div&gt;&lt;br /&gt; &lt;div class="label"&gt;@Html.LabelFor(model =&gt; model.Content)&lt;/div&gt; &lt;div class="fullinput"&gt;@Html.TextAreaFor(model =&gt; model.Content)&lt;/div&gt;&lt;br /&gt; </code></pre> <p>That is the html I'm using.</p> <pre><code>$("#Receiver_UserName").autocomplete({ source: function (request, response) { $.ajax({ url: "/Function/FindUsers", // Or your controller dataType: "json", data: { usr: request.term }, success: function (data) { // Returned data follows the Spellword model response($.map(data, function (item) { return { id: item.Id, label: item.UserName, value: item.UserName } })) } }); }, </code></pre> <p>This is the autocomplete call:</p> <pre><code>[HttpPost] public ActionResult Send(Message message) { User user = entities.Users.SingleOrDefault(u =&gt; u.UserName.Equals(User.Identity.Name)); //ViewData["Friends"] = new SelectList(user.Friends, "Id", "Name"); if (ModelState.IsValid) { entities.Messages.Add(message); entities.SaveChanges(); return RedirectToAction("Index"); } return View(message); } </code></pre> <p>There I check for the validation, and it's always invalid which makes sense, I guess.</p> <pre><code>public class Message { [Key] public int Id { get; set; } [Required(ErrorMessage = "Subject is required")] [Display(Name = "Subject")] public string Subject { get; set; } [Required(ErrorMessage = "Message is required")] [Display(Name = "Message")] public string Content { get; set; } [Required] [Display(Name = "Date")] public DateTime Created { get; set; } public Boolean Read { get; set; } [Required(ErrorMessage = "Can't create a message without a user")] public int SenderId { get; set; } public virtual User Sender { get; set; } [Required(ErrorMessage = "Please pick a recipient")] public int ReceiverId { get; set; } public virtual User Receiver { get; set; } } </code></pre> <p>And finally the Message Model. Obviously i don't have fields for all of these so this is why the modelstate is crying at me. </p> <p>I'm wondering if i can just skip checking modelstate in this case or if i should fix this in a nicer way.</p>
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