c# - Implement custom ModelBinder ASP.NET MVC -

i having same problem many people had - model binder doesn't accept localized decimal input. in of threads, here , other forums, recommended solution implementing custom modelbinder.

my problem solutions somehow don't work me. let's use solution example: comma decimal seperator in asp.net mvc 5

when reference namespaces, 2 errors remain:

error cs0115 'decimalmodelbinder.bindmodel(controllercontext, modelbindingcontext)': no suitable method found override ...

and

error cs0173 type of conditional expression cannot determined because there no implicit conversion between 'bool' , 'decimal'

where second 1 references entire return statement.

did change in mvc framework, code outdated, or doing wrong?

the code ended is:

using system; using system.collections.generic; using system.linq; using system.web; using system.web.modelbinding; using system.web.mvc;  namespace aetmuzickaoprema.app_start {     public class decimalmodelbinder : system.web.modelbinding.defaultmodelbinder     {         public override object bindmodel(controllercontext controllercontext, system.web.modelbinding.modelbindingcontext bindingcontext) //first error         {             var valueproviderresult = bindingcontext.valueprovider.getvalue(bindingcontext.modelname);              return valueproviderresult == null ? base.bindmodel(controllercontext, bindingcontext) : convert.todecimal(valueproviderresult.attemptedvalue); //second error          }     } } 

model property in question:

[required] [range(typeof(decimal), "0", "999999999")] public decimal price { get; set; } 

it seems trying achieve property-level binding such this?:

[propertybinder(typeof(propertybbinder))] public ilist<int> propertyb {get; set;} 

if correct, post offers solution: custom model binder property

thanks.