Get vbhtml code to execute from html - razor

<form>
<input name="valueA">
<input name="valueB">
<input type=submit>
</form>

and in your code:
a = Request.Form("valueA");
b = Request.Form("valueB");
dim result as integer = a + b;

Untested code, just a crude guideline to where you seem to be going

Many thanks, I get the input boxes and the submit button which I assume adds up a and b, but how would I show "result" on the page.  I don't get result when clicking the button.  I have this so far     Thanks again

 dim a As Integer = Request.Form("valueA")
 dim b As Integer = Request.Form("valueB")
 dim result as integer = a + b

<form>
 <input name="valueA">
 <input name="valueB">
 <input type=submit>
 </form>

<div>@{result}</div>

No luck I'm afraid.
@result shows zero when the page loads.  
Entering values and clicking refreshes the page, empties a and b boxes and then still shows zero
Maybe the page refresh is a problem?

Try this:
In your controller:

Public Function Index(ByVal a As Integer?, ByVal b As Integer?) As ActionResult
            dim a as integer
dim b as integer
dim result as integer = a + b
            Return View(result)
        End Function

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In your Index.vbhtml:

@ModelType Integer
....
<div>@{Model}</div>

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Sorry, how would I call the function?