Getting vailidation anomalies in MVC - asp.net-mvc

Question

I'm following this (https://learn.microsoft.com/en-us/aspnet/mvc/overview/older-versions-1/getting-started-with-mvc/getting-started-with-mvc-part7), but I am seeing some strange things I when I view the webpage.
1) The ReleaseDate says its a required filed (even though its not marked as such in the code) , and I cannot see why its doing this.
and
2) the Price "works" if the values is 100.50, or less . if its 100.51 or higher, then the message kicks in. My understanding is that the message should kick in # 100.01... or am I wrong ?
namespace Movies.Models
{
using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
public partial class Movie
{
public int Id { get; set; }
[Required(ErrorMessage = "Titles are required")]
public string Title { get; set; }
public System.DateTime ReleaseDate { get; set; }
public string Genre { get; set; }
[Required(ErrorMessage = "The Price is required.")]
[Range(5, 100, ErrorMessage = "Movies cost between £5 and £100.")]
public decimal Price { get; set; }
}
}
Could someone point out what I'm doing wrong ?
thanks
view code is
#model Movies.Models.Movie
#{
ViewBag.Title = "Create";
}
<h2>Create</h2>
#using (Html.BeginForm())
{
#Html.AntiForgeryToken()
<div class="form-horizontal">
<h4>Movie</h4>
<hr />
#Html.ValidationSummary(true, "", new { #class = "text-danger" })
<div class="form-group">
#Html.LabelFor(model => model.Title, htmlAttributes: new { #class = "control-label col-md-2" })
<div class="col-md-10">
#Html.EditorFor(model => model.Title, new { htmlAttributes = new { #class = "form-control" } })
#Html.ValidationMessageFor(model => model.Title, "", new { #class = "text-danger" })
</div>
</div>
<div class="form-group">
#Html.LabelFor(model => model.ReleaseDate, htmlAttributes: new { #class = "control-label col-md-2" })
<div class="col-md-10">
#Html.EditorFor(model => model.ReleaseDate, new { htmlAttributes = new { #class = "form-control" } })
#Html.ValidationMessageFor(model => model.ReleaseDate, "", new { #class = "text-danger" })
</div>
</div>
<div class="form-group">
#Html.LabelFor(model => model.Genre, htmlAttributes: new { #class = "control-label col-md-2" })
<div class="col-md-10">
#Html.EditorFor(model => model.Genre, new { htmlAttributes = new { #class = "form-control" } })
#Html.ValidationMessageFor(model => model.Genre, "", new { #class = "text-danger" })
</div>
</div>
<div class="form-group">
#Html.LabelFor(model => model.Price, htmlAttributes: new { #class = "control-label col-md-2" })
<div class="col-md-10">
#Html.EditorFor(model => model.Price, new { htmlAttributes = new { #class = "form-control" } })
#Html.ValidationMessageFor(model => model.Price, "", new { #class = "text-danger" })
</div>
</div>
<div class="form-group">
<div class="col-md-offset-2 col-md-10">
<input type="submit" value="Create" class="btn btn-default" />
</div>
</div>
</div>
}
<div>
#Html.ActionLink("Back to List", "Index")
</div>

Answer 1

First question.
Make your DateTime nullable like this:
public System.DateTime? ReleaseDate { get; set; }
Second question:
Specify Range number type to double with literal d like this:
[Range(5d, 100d, ErrorMessage = "Movies cost between £5 and £100.")]
public decimal Price { get; set; }