DynamicFilter

Dynamic filter is a great way to only send to the database, the conditions you actually need.

It allows you to delay the Where decisions until the very last moment

using Firefly.Box;
using ENV.Data;
using ENV;
using Firefly.Box.Flow;
using Firefly.Box.Data.Advanced;
...

void InitializeDataView()
{
    From = Order_Details;

-    StartOnRowWhere.Add(CndRange(pOrderID != 0, Order_Details.OrderID.IsEqualTo(pOrderID)));
-    StartOnRowWhere.Add(Order_Details.ProductID.IsBetween(ProdID, () => u.If(ProdID != 0, ProdID, 9999999)));
     StartOnRowWhere.Add(new DynamicFilter(fc =>
     {
         if (pOrderID != 0)
             fc.Add(Order_Details.OrderID.IsEqualTo(pOrderID));
         if (ProdID != 0)
             fc.Add(Order_Details.ProductID.IsEqualTo(ProdID));
     }));

           

    OrderBy.Add(Order_Details.OrderID); 

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