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copied!<p>Have you considered using unobtrusive validation?</p> <p>You say you are using MVC3 (although not the Razor view engine apparently).</p> <p>With your code like this: <code><p><label for="ClientName">ClientName:</label> <%= Html.TextBoxFor(model => model.Name)%></p></code> which could be written as <code><p>@Html.LabelFor(model=>model.Name) @Html.TextBoxFor(model => model.Name) </p></code> in Razor syntax.</p> <p>If you put this in your web.config:</p> <pre><code><appSettings> <add key="ClientValidationEnabled" value="true" /> <add key="UnobtrusiveJavaScriptEnabled" value="true" /> </appSettings> </code></pre> <p>and then decorate the property in your model with something like this data annotation:</p> <pre><code>[Display(Name = "Name")] [Required(ErrorMessage = "Name is required")] public string Name { get; set; } </code></pre> <p>Then by adding the following into your <code>_Layout.cshtml</code> file you will get unobtrusive validation to work:</p> <pre><code><script src="@Url.Content("~/Scripts/jquery-1.7.1.min.js")" type="text/javascript"></script> <script src="@Url.Content("~/Scripts/jquery.validate.min.js")" type="text/javascript"></script> <script src="@Url.Content("~/Scripts/jquery.validate.unobtrusive.min.js")" type="text/javascript"></script> </code></pre> <p>Then you could add this somewhere on the page (where you want the validation message to be shown): <code>@Html.ValidationMessageFor(model=>model.Name)</code></p>

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