How to stop JIT Debugging

Hi @NageswaraRaoAddanki60  I have modified your code and commented few logic, which is not recommended in rowselected event.

You can verify with this code and check once.

  public class InventoryItemMaint_Extension : PXGraphExtension<InventoryItemMaint>
    {

        public PXSetup<AMRPSetup> SetupView;

        #region Event Handlers

        protected void _(Events.RowSelected<InventoryItem> e)

        {
            InventoryItem row = e.Row as InventoryItem;

            if (row != null)
            {
                InventoryItemExt inventoryItem = row.GetExtension<InventoryItemExt>();// PXCache<InventoryItem>.GetExtension<InventoryItemExt>(row);

                //AMRPSetup MRP = SelectFrom<AMRPSetup>.View.Select(this.Base);

                AMRPSetupExt aMRPSetup = SetupView.Current.GetExtension<AMRPSetupExt>(); //PXCache<AMRPSetup>.GetExtension<AMRPSetupExt>(MRP);

                bool flag = aMRPSetup.UsrUseDaysSupplytoConsolidateOrders.GetValueOrDefault();

                PXUIFieldAttribute.SetVisible<InventoryItemMfgOnly.aMGroupWindow>(e.Cache, row, flag);

                //if (inventoryItem.UsrSTOverride == null || inventoryItem.UsrSTOverride == false)

                //{

                //    INItemClass itemClass = SelectFrom<INItemClass>.Where<INItemClass.itemClassID.IsEqual<@P.AsInt>>.View.Select(this.Base, row.ItemClassID == null ? 1 : row.ItemClassID);

                //    InventoryItemMfgOnly inventoryItemMfg = SelectFrom<InventoryItemMfgOnly>.Where<InventoryItemMfgOnly.inventoryID.IsEqual<@P.AsInt>>.View.Select(this.Base, row.InventoryID == null ? 33 : row.InventoryID);

                //    INItemClassExt iNItemClass = PXCache<INItemClass>.GetExtension<INItemClassExt>(itemClass);

                //    if (inventoryItemMfg != null)

                //        inventoryItemMfg.AMGroupWindow = iNItemClass.UsrDaysSupply;

                //}
            }

        }

        protected void _(Events.FieldVerifying<InventoryItem, InventoryItemMfgOnly.aMGroupWindow> e)

        {
            InventoryItem row = e.Row as InventoryItem;

            if (row == null || e.NewValue == null) return;

            if ((int)e.NewValue <= 0)

            {

                //Throwing an exception to cancel the assignment of the new value to the field

                throw new PXSetPropertyException(Message.DaysSupplymorethanone);

            }

        }

        //-------------------------------------------------

        protected void _(Events.FieldDefaulting<InventoryItem, InventoryItemMfgOnly.aMGroupWindow> e)

        {

            InventoryItem row = e.Row as InventoryItem;

            if (row != null)
            {
                var ItemClassID = row.ClassID == null ? 1 : row.ClassID;

                InventoryItemExt inventoryItem = row.GetExtension<InventoryItemExt>(); //PXCache<InventoryItem>.GetExtension<InventoryItemExt>(row);

                if (inventoryItem.UsrSTOverride == null || inventoryItem.UsrSTOverride == false)

                {

                    INItemClass itemClass = SelectFrom<INItemClass>.Where<INItemClass.itemClassID.IsEqual<@P.AsInt>>.View.Select(this.Base, ItemClassID);

                    INItemClassExt iNItemClass = PXCache<INItemClass>.GetExtension<INItemClassExt>(itemClass);

                    // e.NewValue = iNItemClass.UsrDaysSupply;

                    // Acuminator disable once PX1047 RowChangesInEventHandlersForbiddenForArgs [Justification]

                      e.Cache.SetDefaultExt<InventoryItemMfgOnly.aMGroupWindow>(e.Row);

                }
            }

        }

        #endregion

    }