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    copied!<p><strong>Please don't Postback the form. Instead of that Call the ajax call</strong> </p> <pre><code> &lt;%@ Control Language="C#" Inherits="System.Web.Mvc.ViewUserControl&lt;LMS.Data.User&gt;" %&gt; &lt;script src="&lt;%: Url.Content("~/Scripts/jquery-1.6.2.min.js") %&gt;"&gt;&lt;/script&gt; &lt;script src="&lt;%: Url.Content("~/Scripts/jquery.validate.min.js") %&gt;"&gt;&lt;/script&gt; &lt;script src="&lt;%: Url.Content("~/Scripts/jquery.validate.unobtrusive.min.js") %&gt;"&gt;&lt;/script&gt; &lt;% using (Html.BeginForm()) &lt;%: Ajax.BeginForm("Create",new AjaxOptions { HttpMethod = "GET", UpdateTargetId = "ManageUsersPartial", InsertionMode = InsertionMode.Replace }, htmlAttributes: new { data_target = "#tabs-users" }) { %&gt; &lt;%: Html.ValidationSummary(true, "Could not create new user.") %&gt; &lt;fieldset&gt; &lt;legend&gt;User&lt;/legend&gt; &lt;div class="editor-label"&gt; &lt;%: Html.LabelFor(model =&gt; model.UserName) %&gt; &lt;/div&gt; &lt;div class="editor-field"&gt; &lt;%: Html.EditorFor(model =&gt; model.UserName) %&gt; &lt;%: Html.ValidationMessageFor(model =&gt; model.UserName) %&gt; &lt;/div&gt; &lt;div class="editor-label"&gt; &lt;%: Html.LabelFor(model =&gt; model.FirstName) %&gt; &lt;/div&gt; &lt;div class="editor-field"&gt; &lt;%: Html.EditorFor(model =&gt; model.FirstName) %&gt; &lt;%: Html.ValidationMessageFor(model =&gt; model.FirstName) %&gt; &lt;/div&gt; &lt;div class="editor-label"&gt; &lt;%: Html.LabelFor(model =&gt; model.LastName) %&gt; &lt;/div&gt; &lt;div class="editor-field"&gt; &lt;%: Html.EditorFor(model =&gt; model.LastName) %&gt; &lt;%: Html.ValidationMessageFor(model =&gt; model.LastName) %&gt; &lt;/div&gt; &lt;div class="editor-label"&gt; &lt;%: Html.LabelFor(model =&gt; model.Password) %&gt; &lt;/div&gt; &lt;div class="editor-field"&gt; &lt;%: Html.EditorFor(model =&gt; model.Password) %&gt; &lt;%: Html.ValidationMessageFor(model =&gt; model.Password) %&gt; &lt;/div&gt; &lt;div class="editor-label"&gt; &lt;%: Html.LabelFor(model =&gt; model.Email) %&gt; &lt;/div&gt; &lt;div class="editor-field"&gt; &lt;%: Html.EditorFor(model =&gt; model.Email) %&gt; &lt;%: Html.ValidationMessageFor(model =&gt; model.Email) %&gt; &lt;/div&gt; &lt;p&gt; &lt;input type="submit" value="Create" /&gt; &lt;/p&gt; &lt;/fieldset&gt; &lt;% } %&gt; &lt;div&gt; &lt;%: Html.ActionLink("Back to List", "Index") %&gt; &lt;/div&gt; </code></pre> <p><strong>And then method should return the paratail view instead of Content Type</strong></p> <pre><code> public ActionResult Create(AccountUser user) { if (ModelState.IsValid) { try { user.Password = user.Password.Encrypt(); userManager.AddUser(user); } catch (DbEntityValidationException dbex) { foreach (var validationErrors in dbex.EntityValidationErrors) { foreach (var validationError in validationErrors.ValidationErrors) { ModelState.AddModelError(validationError.PropertyName, validationError.ErrorMessage); } } return PartialView("CreateUserPartial", user); } catch (DbUpdateException dbuex) { if (dbuex.InnerException != null) if (dbuex.InnerException.InnerException != null) if (dbuex.InnerException.InnerException.Message.Contains("Cannot insert duplicate key row in object")) return Content("User already exists!", "text/html"); else ModelState.AddModelError("", "An unknown error occured when creating the user."); return PartialView("CreateUserPartial", user); } catch (Exception) { ModelState.AddModelError("", "An unknown error occured when creating the user."); return PartialView("CreateUserPartial", user); } return PartialView("UsersPartial", userManager.GetUsers()); } return PartialView("UsersPartial", userManager.GetUsers()); } </code></pre>
 

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