Can you show me the Roots of HTML Editor INSERT Datafields data in Notification Templates (SM204003)?

I have founded How the  HTML Editor INSERT Datafields are working

I hope this may help you 

Thanks,

Shahidavali

Follow below process

1. In the screen you want to show datafields graph changes have given below 
2. First you have to get how many screens of data you needed at datafields

 public static System.Type GetRecordSystemType(string agreeType)
        {
            System.Type recType = null;

            switch (agreeType)
            {

                case SSP.Helper.Constant.Opportunity:
                    recType = typeof(PX.Objects.CR.CROpportunity);
                    break;

                case SSP.Helper.Constant.ServiceOrder:
                    recType = typeof(PX.Objects.FS.FSServiceOrder);
                    break;

                case SSP.Helper.Constant.Projects:
                    recType = typeof(PX.Objects.PM.PMProject);
                    break;

                case SSP.Helper.Constant.ChangeOrders:
                    recType = typeof(PX.Objects.PM.PMChangeOrder);
                    break;

                case SSP.Helper.Constant.PurchaseOrders:
                    recType = typeof(PX.Objects.PO.POOrder);
                    break;

                case SSP.Helper.Constant.CustomerContracts:
                    recType = typeof(PX.Objects.CT.Contract);
                    break;

                case SSP.Helper.Constant.ServiceContracts:
                    recType = typeof(PX.Objects.FS.FSServiceContract);
                    break;

                default:
                    // SSSTODO:  Throw Exception!!!
                    break;
            }

            return recType;
        }

1. You should have reference field In the main screen or  you can skip and you can give same screen Datafield as showen in the above cases as your wish.

   

    [PXViewName("Entity Fields")]
           [PXCopyPasteHiddenView]
           public PXSelectOrderBy<CacheEntityItem, OrderBy<Asc<CacheEntityItem.number>>> EntityItems;
   
           protected virtual System.Collections.IEnumerable entityItems([PXString] string parent)
           {
               if (Agreements.Current == null) return new CacheEntityItem[0];
               System.Type recType = SSPAgreementMaint.GetRecordSystemType(Agreements.Current.AgreeType);
   
               if (recType != null)
               {
                   return EMailSourceHelper.TemplateEntity(this, parent, recType.FullName, null);
               }
               else
               {
                   return new CacheEntityItem[0];
               }
   
   
           }

2. In the .aspx page Had to add "DataTrees" section

1. Remove Previousdatafield element (set AllowInsertPrevParameter = false)
2. Made InsertDatafield section exactly as showen in the below.

<InsertDatafield TextField="Name" ValueField="Path" DataSourceID="ds" ImageField="Icon" DataMember="EntityItems"></InsertDatafield>