ASP.Net MVC - Helper lambdaexpression post action

Question

I created this helper method using a lambdaexpression to used strongly type helper in a view

Helper

        public static string DateFor<TModel, TDate>(this HtmlHelper<TModel> helper, Expression<Func<TModel, TDate>> expression)
        {
            ModelMetadata data = ModelMetadata.FromLambdaExpression(expression, helper.ViewData);
            StringBuilder sb = new StringBuilder();
            ...
            //code that creates three dropdownlist (day, month and year)
            ...
        }

view

        <%= Html.LabelFor(model => model.DataNascita) %>

Controller

        [HttpPost]
        public ActionResult Edit(int id, Account MyAccount)
        {
            ...
            return View(...);
        }

my problem is that the MyAccount.DataNascita is not set with the value i choose in the Edit form (date's value minimun.. ex. 1900/01/01).

how to bind it in a Edit post action?

Answer 1

I think what you are after is a custom ModelBinder that will parse the incoming posted data and convert it into a DateTime for your model.

Answer 2

In your view, you say that you are outputting a Label for something, but your question concerns why the value isn't kept on posting.

I think you need to, at least, say Html.EditorFor(...), but you probably want to use the helper method you wrote:

<%: Html.DateFor(model => model.DataNascita) %>

However, it is impossible to say exactly what is going on here without knowing the data type of the DataNascita property on the model.

Answer 3

I suggest you use Jquery Datepicker.

You can customize it with Jquery Themeroller.