Object reference not set to instance of an object while getting data from request object/Formcollection

Question

i am trying to implement a simple add operation using MVC Ajax

My code is as follows:

Public Class Model

{
  public int number1{get;set;}

  public int          


        

Answer 1

Update: Based on your model:

[HttpPost]
public int TestAjax(Model mymodel)
{
  return mymodel.number1 + mymodel.number2;
}

And in your HTML assuming you are referencing the model:

@model Model

replace your inputs with this accordingly:

@Html.TextBoxFor(model => model.number1)
@Html.TextBoxFor(model => model.number2)

You have to validate that the user only types integer valid values in your textboxes with javascript.