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POIn Asp.Net MVC view dont render changes in model made by controller
 

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  1. POIn Asp.Net MVC view dont render changes in model made by controller
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    <p>Im new to ASP.NET MVC and need some help.<br> When "P01" action is fired by post i receive the strongly typed model as parameter, change properties of this model instance and call "return View(model);".<br> In view im using "@Html.TextBoxFor(m => m.p01campo01)" syntax.<br> Someone <a href="https://stackoverflow.com/questions/5410438/mvc3-razor-viewdata">here</a> had a similar problem and get advice to use the syntax im using.<br> Someone <a href="https://stackoverflow.com/questions/642939/mvc-updatemodel-complextype">here</a> is using "&lt;%=Html.TextBox("Person.LastName", ViewData.Model.LastName)%>" syntax.<br> <strong>The problem is</strong> when the view is rendered the textbox have the last posted value, not the value i assigned in controller. </p> <p>Thanks for everyone that have tried to help me here, i put as answer the first answer that work.</p> <p>There is my code: </p> <pre><code>************************************************* using System; using System.Collections.Generic; using System.ComponentModel.DataAnnotations; using System.Globalization; using System.Linq; using System.Web; using System.Web.Mvc; using System.Web.Security; namespace MyTest.Models { //------- public class testePg01 { [DataType(DataType.Text)] [Display(Name = "p01campo01")] public string p01campo01 { get; set; } [DataType(DataType.Text)] [Display(Name = "p01campo02")] public string p01campo02 { get; set; } } //------- } ************************************************* ************************************************* using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.Mvc; using MyTest.Models; namespace MyTest.Controllers { public class TesteController : Controller { //------- [AcceptVerbs(HttpVerbs.Get)] public ActionResult P01() { return View(); } //------- [AcceptVerbs(HttpVerbs.Post)] [ValidateAntiForgeryToken] public ActionResult P01(testePg01 model) { model.p01campo01 = model.p01campo01 + "#updatedHereButNotInView"; model.p01campo02 = model.p01campo02 + "#updatedHereButNotInView"; return View(model); // it dont return updated } //------- } } ************************************************* ************************************************* @model MyTest.Models.testePg01 @{ ViewBag.Title = "P01"; } &lt;h2&gt;P01&lt;/h2&gt; &lt;script src="@Url.Content("~/Scripts/jquery.validate.min.js")" type="text/javascript"&gt;&lt;/script&gt; &lt;script src="@Url.Content("~/Scripts/jquery.validate.unobtrusive.min.js")" type="text/javascript"&gt;&lt;/script&gt; @Html.ValidationSummary(true, "Erro na pagina.") @using (Html.BeginForm()) { @Html.AntiForgeryToken() &lt;div&gt; &lt;fieldset&gt; &lt;legend&gt;Test P01&lt;/legend&gt; &lt;div class="editor-label"&gt; @Html.LabelFor(m =&gt; m.p01campo01) &lt;/div&gt; &lt;div class="editor-field"&gt; @Html.TextBoxFor(m =&gt; m.p01campo01) @Html.ValidationMessageFor(m =&gt; m.p01campo01) &lt;/div&gt; &lt;div class="editor-label"&gt; @Html.LabelFor(m =&gt; m.p01campo02) &lt;/div&gt; &lt;div class="editor-field"&gt; @Html.TextBoxFor(m =&gt; m.p01campo02) @Html.ValidationMessageFor(m =&gt; m.p01campo02) &lt;/div&gt; &lt;p&gt; &lt;input type="submit" value="P01" /&gt; &lt;/p&gt; &lt;/fieldset&gt; &lt;/div&gt; } ************************************************* </code></pre>
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