Data not populating in form upon clicking edit - asp.net-mvc

Question

I am working on this ASP.NET MVC project where I am performing simple CRUD operations. On clicking Edit button, I want to get the data from the database and populate it in the Create View (same view with the help of which I entered the data).
The issue that I have is that, though I am able to enter the data into the database using the Create.cshtml view, I am not able to populate the data back into the fields to the same View upon clicking Edit. On checking, I see that I am able to get the data from the database from the Controller and I am sending it to the View - Create. But, the fields are not getting populated in the View.
Where am I going wrong?
View - Create.cshtml
<form method="post" action="/Books/Create" id="formBooks">
<div class="form-group">
<div class="form-row">
<div class="form-group col-md-6">
<div>
<label asp-for="Title" class="label">Title</label>
<input asp-for="Title" class="form-control" id="title" name="title" required />
<span asp-validation-for="Title" class="text-danger"></span>
</div>
<div>
<label asp-for="Author" class="label">Author</label>
<input asp-for="Author" class="form-control" id="author" name="author" required />
<span asp-validation-for="Author" class="text-danger"></span>
</div>
...
</div>
<div class="form-group col-md-6">
<button type="submit" value="Save" class="btn bgm-orange waves-effect mybtn">SAVE</button>
</div>
</div>
</div>
</form>
Controller - BooksController.cs
public ActionResult Create(int? Id)
{
if(Id == null)
{
return View();
}
else
{
var bookData = _context.Books
.Where(b => b.ID == Id)
.FirstOrDefault();
return View(bookData);
}
}

Answer 1

public ActionResult Create(int? id)
{
if (id == null)
{
return new HttpStatusCodeResult(HttpStatusCode.BadRequest);
}
Books books= db.Books.Find(id);
if (books== null)
{
return HttpNotFound();
}
return View(books);
}
//Try this i hope this will work

Answer 2

The name attribute plays a vital role in binding the data to the <input></input> field. Also, value attribute gets the value to display in the Edit view.
<input asp-for="Title" class="form-control" id="title" name="title" placeholder="Enter title..." value="#(Model != null ? Model.Title : "")" required />