import System.Diagnostics;
  import System.Xml.Serialization;
  import System;
  import System.Web.Services.Protocols;
  import System.ComponentModel;
  import System.Web.Services;
  import primeProxy;

  package ASPPlus {
   
    class codeBehind extends System.Web.UI.Page {

      public var resultControl : System.Web.UI.WebControls.Label;
	  public var first : System.Web.UI.WebControls.TextBox;
	
      public function Submit_Click(sender:Object, E:EventArgs) : void {
        var result : String;
        var webService : PrimeNumbers;
        webService = new PrimeNumbers();
  
        result = webService.IsPrime(int.Parse(first.Text));
        resultControl.Text = (result == 0 ? " is not a prime number": "   
	      is a prime number") ;
      }
	
    }
  
  }

The function Submit_Click() is triggered by the button on the ASP.NET page and it calls the IsPrime Web service. It also sets the Text property of the resultControl Label.

Again, the communication between the ASP.NET page and the Code Behind is through the dll files in the bin directory. The ASP.NET page looks for the namespace ASPPlus, and for the class codeBehind inside it. Therefore, you need to compile the Code Behind into a dll file:

jsc /t:library /out:bin\codebehind.dll /r:bin\sampleproxy.dll 
  IsPrimeConsumerForm.aspx.js

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