How to Call X++ code inside an SSRS report

Create a data method like this

    [DataMethod(), AxSessionPermission(SecurityAction.Assert)]
    public static string getOnHand(string itemId, string inventBatchId)
    {
        //gets a session
        var ax = Microsoft.Dynamics.Framework.Reports.SessionManager.GetSession();

        //creates an instance of the inventOnHand Class
        var onHand = ax.CreateAxaptaObject("InventOnHand");
        //calls method ├â┬ó├óΓÇÜ┬¼├àΓÇ£ParmItemId├â┬ó├óΓÇÜ┬¼├é┬¥ and passes in the value of ItemId supplied to the data method
        onHand.Call("ParmItemId", itemId);
        // conditionally filter based on inventBatchId
        if(inventBatchId != "")
        {
            onHand.Call("ParmBatchId", inventBatchId);
        }
        //call ├â┬ó├óΓÇÜ┬¼├àΓÇ£availPhysical()├â┬ó├óΓÇÜ┬¼├é┬¥ on your InventOnHand object and capture the value
        var availPhysical = onHand.Call("availPhysical");

        //return it as a string to match the data Methods cast type
        return availPhysical.ToString();
    }

 

The equivilent AX code is …

InventOnHand OnHand;
Qty availPhysical;
;

onHand = new InventOnHand();
onHand.parmItemId(itemId);
if(InventBatchId != “”)
{
      onHand.parmBatchId(inventBatchId);
}
availPhysical = onHand.availPhysical();
return availPhysical;