I'm trying to override the following method in BOMCostRoll.cs:
protected virtual decimal? GetUnitCostFromINItemSite(INItemSite inItemSite)
{
return GetUnitCostFromINItemSiteTable(inItemSite);
}
Here is my override code:
using PX.Data;
using PX.Objects.IN;
namespace PX.Objects.AM
{
//Use last cost instead of average or standard cost for cost rolls on BOM's.
[PXProtectedAccess]
public abstract class GetUnitCostFromINItemCost_Ext : PXGraphExtension<BOMCostRoll>
{
public delegate decimal? GetUnitCostFromINItemCostDelegate(INItemCost inItemCost);
[PXOverride]
public virtual decimal? GetUnitCostFromINItemCost(INItemCost inItemCost, GetUnitCostFromINItemCostDelegate baseMethod)
{
{
if (inItemCost != null && inItemCost.LastCost != null)
{
return inItemCost.LastCost;
}
}
return null;
}
}
}This is the error I get, no matter what I do:
No matter which method of overriding I’ve tried, I get an error “Value Cannot be Null, Parameter: con”
