Data Annotation for currency format not working

Question

In my ASP.NET MVC Core web project on VS2015, the following model is displaying data as, e.g., 15481 instead of $15,481 even though I\'m using [D

Answer 1

A [DisplayFormat] attribute is only respected when using @Html.DisplayFor() or @Html.EditorFor(). It is ignored when using TextBoxFor().

In addition, if you wanted to use it with @Html.EditorFor(r => r[i].SaleAmount) you need to modify the attribute to include the ApplyFormatInEditMode property

[DisplayFormat(DataFormatString = "{0:C0}", ApplyFormatInEditMode = true)]
public float? SaleAmount { get; set; }

however that would be of little use to you, because although it would display in the textbox correctly, it will not bind back to you float property unless you were also to create a custom model binder which converted (say) "$15,481" back to a float