Question

I am using a Remote validation attribute on my view model to validate a Bank Account that is specified for my Company:

ViewModel:

[Remote("CheckDefaultBank", "Company")]
    public string DefaultBank
    {

This in the controller I have:

    [HttpGet]
    public JsonResult CheckDefaultBank(string defaultBank)
    {
        bool result = BankExists(defaultBank);
        return Json(result, JsonRequestBehavior.AllowGet);
    }

That all works well. But, I have two other banks related to my company as well. However, when the remote validation js calls the action it uses a parameter mactching the field name of “DefaultBank”… so I use that as a parameter in my action.

Is there some attribute I can add in the view so that it will use a parameter of say “bankId” on the ajax get so I don’t need an action for each field which are basically exactly the same?

The goal here is to eliminate now having to have this in my controller:

[HttpGet]
    public JsonResult CheckRefundBank(string refundBank)
    {
        bool result = BankExists(defaultBank);
        return Json(result, JsonRequestBehavior.AllowGet);
    }

[HttpGet]
    public JsonResult CheckPayrollBank(string payrollBank)
    {
        bool result = BankExists(defaultBank);
        return Json(result, JsonRequestBehavior.AllowGet);
    }

I was hoping I could do something like this in the view:

@Html.EditorFor(model => model.DefaultBank, new { data-validate-parameter: bankId })

This way I could just use the same action for all of the Bank entries like:

[HttpGet]
    public JsonResult CheckValidBank(string bankId)
    {
        bool result = BankExists(bankId);
        return Json(result, JsonRequestBehavior.AllowGet);
    }

Possible?

Answer 1

Since MVC uses the default model binder for this, just like a normal action method. You could take a FormsCollection as your parameter and lookup the value. However, I personally would find it much easier to just use several parameters to the function, unless you start having dozens of different parameters.

You could also write a custom model binder, that would translate the passed parameter to a generic one.