html-helper

I was wondering, is it possible to create your own helper definition, with a using? such as the following which creates a form: using (Html.BeginForm(params)) { } I'd like to make my own helper like that. So a simple example I'd like to do using(Tablehelper.Begintable(id) { <th>content etc<th> } which will output in my view <table> <th>content etc<th> </table> Is this possible? if so, how? Thanks Sure, it's possible: public static class HtmlExtensions { private class Table : IDisposable { private readonly TextWriter _writer; public Table(TextWriter writer) { _writer = writer; } public void

Have just started playing with ASP.NET MVC and have stumbled over the following situation. It feels a lot like a bug but if its not, an explanation would be appreciated :) The View contains pretty basic stuff <%=Html.DropDownList("MyList", ViewData["MyListItems"] as SelectList)%> <%=Html.TextBox("MyTextBox")%> When not using a model, the value and selected item are set as expected: //works fine public ActionResult MyAction(){ ViewData["MyListItems"] = new SelectList(items, "Value", "Text"); //items is an ienumerable of {Value="XXX", Text="YYY"} ViewData["MyList"] = "XXX"; //set the selected

I have a DateTime field in my Model. If I try to use this field in a strong typed partial view this way <%= Html.TextBoxFor(model => model.DataUdienza.ToString("dd/MM/yyyy"), new { style = "width: 120px" }) %> I will get the following compilation error at runtime System.InvalidOperationException : Templates can be used only with field access, property access, single-dimension array index, or single-parameter custom indexer expressions. Anyway if I use it removing the formatting, ToString("dd/MM/yyyy") , everything works but the field is formatted using the time part which I dont need at all.

The problem in Html.ActionLink() is that you can't add additional html content inside the tag that it generates. For example, if you want to add an icon besides the text like: <a href="/Admin/Users"><i class="fa fa-users"></i> Go to Users</a> Using Html.ActionLink(), you can only generate: <a href="/Admin/Users">Go to Users</a> So, to resolve this, you can use Url.Action() to generate only the URL inside the tag like: // Here, Url.Action could not generate the URL "/admin/users". So this doesn't work. <a href="@Url.Action("", "Users", "Admin")"><i class="fa fa-usesr"></i> Go to Users</a> //

I have some doubts about how to concatenate MvcHtmlString instances because of this information found in MSDN : MvcHtmlString Class Represents an HTML-encoded string that should not be encoded again Do I risk that strings are HTML-encoded twice when using code like this: var label = Html.LabelFor(model => model.Email); var textbox = Html.TextBoxFor(model => model.Email); var validation = Html.ValidationMessageFor(model => model.Email); var result = MvcHtmlString.Create( label.ToString() + textbox.ToString() + validation.ToString()); (note: this is supposed to go into an HtmlHelper extension

In the world of MVC I have this view model... public class MyViewModel{ [Required] public string FirstName{ get; set; } } ...and this sort of thing in my view... <%= Html.ValidationSummary("Please correct the errors and try again.") %> <%= Html.TextBox("FirstName") %> <%= Html.ValidationMessage("FirstName", "*") %> My question: If I submit this form without supplying a name, I get the following message "The FirstName field is required" OK. So, I go and change my property to... [DisplayName("First Name")] [Required] public string FirstName{ get; set; } ..and now get "The First Name field is

After upgrading to MVC 3 RTM I get an exception where it previously worked. Here is the scenario. I have several objects that use the same underlying interfaces IActivity and IOwned. IActivity implements IOwned (another interface) public interface IActivity:IOwned {...} public interface IOwned { int? AuthorId {get;set;} } I have a partial view that uses IActivity for reuse from other concrete partials. Here is the definition of the Activity Partial. <%@ Control Language="C#" Inherits="System.Web.Mvc.ViewUserControl<IActivity>" %> <%: Html.HiddenFor(item => item.AuthorId) %> However, it throws