error with decimal in mvc3 - the value is not valid for field

Question

I\'m following [Getting started with ASP.NET MVC 3][1]. And I can\'t add/edit with value of Price = 9.99 or 9,99. It said: \"The value \'9.99\' is not valid for Price.\" and

Answer 1

I've tried @Leniel Macaferi but it didn't work for me.

ModelState.IsValid didn't accept numbers formatted like 7.000,00

The problem started when I changed the property type from:

[Column("PRICE")]
public decimal Price { get; set; }

to

[Column("PRICE")]
public decimal? Price { get; set; }

I've also tried to include the globalization on web.config that I had forgotten

<globalization culture="pt-BR" uiCulture="pt-BR" enableClientBasedCulture="true" />

The only workaround that worked was change back the property to decimal only:

[Column("PRICE")]
public decimal Price { get; set; }

and also changed the table column to NOT accept null values

Hope it helps somebody.

Answer 2

You can add:

protected void Application_BeginRequest()
{
    var currentCulture = (CultureInfo)CultureInfo.CurrentCulture.Clone();
    currentCulture.NumberFormat.NumberDecimalSeparator = ".";
    currentCulture.NumberFormat.NumberGroupSeparator = " ";
    currentCulture.NumberFormat.CurrencyDecimalSeparator = ".";

    Thread.CurrentThread.CurrentCulture = currentCulture;
    //Thread.CurrentThread.CurrentUICulture = currentCulture;
}

To Global.asax (tested on MVC 5.1). It works without changing UICulture for me.

Answer 3

In 2019, this problem is still not solved. Using ASP Core 2.1, my UI is in French (decimal separator= ',') and I couldn't get the validation to work anytime I had a decimal number.

I found a workaround, not ideal though: I created a french-based CultureInfo but I changed the decimal separator to be the same as in Invariant Culture : '.'.

This made the trick, my decimal numbers are now displayed US style (but I am ok with it) and validation works.

    // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
    public void Configure(IApplicationBuilder app, IHostingEnvironment env)
    {
        app.UseHttpsRedirection();
        app.UseStaticFiles();
        app.UseCookiePolicy();

        app.UseMvc(routes =>
        {
            routes.MapRoute(
                name: "default",
                template: "{controller=Home}/{action=Index}/{id?}");
        });


        //Culture specific problems
        var cultureInfo = new CultureInfo("fr-FR");
        cultureInfo.NumberFormat.NumberDecimalSeparator = ".";
        System.Threading.Thread.CurrentThread.CurrentUICulture = cultureInfo;

    }