如何检查Html.radiobuttonfor

Question

I have three radio buttons like the following code in my MVC project.

I need to check one of them when user come back to the page through a back button in my application.

I already save the user's response in Session (like Session ("MyField") = model.MyField )

Can you please help me how I can do that?

@Html.RadioButtonFor(model => model.MyField, "Yes")
@Html.RadioButtonFor(model => model.MyField, "No")
@Html.RadioButtonFor(model => model.MyField, "NA")

Answer 1

Usually when you click the browser back button, you will be able to see the input field items with previously submitted data.

If you want to pre select a specific radio button when the page loads, you can set this in your GET action

public ActionResult Create()
{
   var vm= new YourViewModel();
   vm.MyField = "No";  // Replace this hard coded value with whatever value you want to set
   return View(vm);
}