如何在Acumatica中自定义屏幕释放AP文档（AP501000）

我在自定义屏幕释放AP文档（screnid = AP501000）中遇到问题 . 如果我已经在屏幕AP Bill And Adjusment中创建了一些额外的字段，我在DAC APTran（UsrJobOrderNbr和usrNoSeriFaktur）中创建了2个字段 . 我将DAC扩展创建为名为APTranExtension . 以下是sintaks：

using PX.Objects.CR;
using PX.Objects.EP;
using PX.Objects.FA;
using PX.Objects.PO;
using System;
using PX.Data;
using PX.Objects.GL;
using PX.Objects.CM;
using PX.Objects.CS;
using PX.Objects.IN;
using PX.Objects.TX;
using PX.Objects.DR;
using PX.Objects.PM;
using System.Collections.Generic;
using PX.Objects;
using PX.Objects.AP;

namespace SGLCustomization
{
   [Serializable]
   public class APTranExtension: PXCacheExtension<PX.Objects.AP.APTran>
   {
       #region UsrJobOrderNbr`enter code here`
       public abstract class usrJobOrderNbr : IBqlField{}
       [PXDBString(25, IsFixed = true, IsUnicode = true)]
       [PXUIField(DisplayName="Job Order Nbr")]
       [PXSelector(typeof(Search<JobOrderNbr.jobOrderNbrCD,
                        Where<JobOrderNbr.status,
                            Equal<statusActive>>>),
              typeof(JobOrderNbr.customerID),
              typeof(JobOrderNbr.status),
              typeof(JobOrderNbr.usrJobOrderNoRef))]
      public string UsrJobOrderNbr
      {
          get;
          set;
      }

      #endregion
  }
}

我还创建了名为APTaxTranExtension的DAC扩展，下面是sintaks：

using PX.Objects.CR;
using PX.Objects.EP;
using PX.Objects.FA;
using PX.Objects.PO;
using System;
using PX.Data;
using PX.Objects.GL;
using PX.Objects.CM;
using PX.Objects.CS;
using PX.Objects.IN;
using PX.Objects.TX;
using PX.Objects.DR;
using PX.Objects.PM;
using System.Collections.Generic;
using PX.Objects;
using PX.Objects.AP;
using PX.Objects.AR;

namespace SGLCustomization
{
   [Serializable]
   public class APTaxTranExtension: PXCacheExtension<PX.Objects.AP.APTaxTran>
   {
     #region UsrNoSeriFaktur
     public abstract class usrNoSeriFaktur : IBqlTable{}
     [PXDBString(50, IsFixed = true)]
     [PXUIField(DisplayName = "No Seri Faktur / Additional Narration")]
     public string UsrNoSeriFaktur { get; set; }
     #endregion
   }
}

我还在GLTranExtension中创建Extension DAC，以存储来自APTranExtension和APTaxTranExtension的值 . 以下是我的GLTranExtension的sintaks：

using System;
using PX.Data;
using PX.Objects.CM;
using PX.Objects.CS;
using PX.Objects.PM;
using PX.Objects.CR;
using PX.Objects.TX;
using System.Collections.Generic;
using PX.Objects;
using PX.Objects.GL;

namespace SGLCustomization
{
   [Serializable]
  public class GLTranExtension: PXCacheExtension<PX.Objects.GL.GLTran>
  {
      #region UsrJobOrderNbr

      public abstract class usrJobOrderNbr : IBqlField{}
      [PXDBString(25, IsFixed = true, IsUnicode = true)]
      [PXUIField(DisplayName="Job Order Nbr")]
      [PXSelector(typeof(Search<JobOrderNbr.jobOrderNbrCD,
                        Where<JobOrderNbr.status,
                            Equal<statusActive>>>),
                //typeof(JobOrderNbr.jobOrderNbrCD),
                typeof(JobOrderNbr.customerID),
                typeof(JobOrderNbr.status))]
      public string UsrJobOrderNbr{get;set;}
      #endregion

      #region UsrNoSeriFaktur
      public abstract class usrNoSeriFaktur : IBqlTable { }
      [PXDBString(75, IsFixed = true)]
      [PXUIField(DisplayName = "No Seri Faktur / Additional Narration")]
      public string UsrNoSeriFaktur { get; set; }
      #endregion

      #region UsrInvoiceNbr
      public abstract class usrInvoiceNbr : IBqlTable { }
      [PXDBString(60, IsFixed = true)]
      [PXUIField(DisplayName = "Vendor Ref. / Customer Order")]
      public string UsrInvoiceNbr { get; set; }
      #endregion
  }
}

我的目标是当我输入交易然后我在屏幕发布AP文档（AP501000）中发布文档时，我的新附加字段中的所有值也已经发送到日记帐交易屏幕（GL301000） .

我已经创建了APReleaseProcessExtension BLC来提供它，但它没有用 . 以下是我的APReleaseProcessExtension代码：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using PX.Data;
using PX.Objects.AP;
using PX.Objects.GL;
using PX.Objects.CM;
using PX.Objects.CA;
using PX.Objects.CR;
using PX.Objects.CS;
using PX.Objects.CT;
using PX.Objects.PM;
using SGLCustomization;
using SGLCustomization1;

namespace SGLCustomization1
{

  public class APReleaseProcessExtension: PXGraphExtension<APReleaseProcess>
  {
      public delegate List<APRegister> ReleaseDocProcDel(JournalEntry je, ref APRegister doc, PXResult<APInvoice, CurrencyInfo, Terms, Vendor, Account> res, out PMRegister pmDoc);
      public List<APRegister> ReleaseDocProc(JournalEntry je, ref APRegister doc, PXResult<APInvoice, CurrencyInfo, Terms, Vendor, Account> res, out PMRegister pmDoc, ReleaseDocProcDel del)
      {
          je.RowInserting.AddHandler<GLTran>((sender, e) =>
          {
              GLTran glTran = e.Row as GLTran;
              APTran apTran = PXResult<APTran>.Current;
              if (glTran != null && apTran != null)
              {
                  APTranExtension apTex = PXCache<APTran>.GetExtension<APTranExtension>(apTran);
                  if (apTran != null && apTex.UsrJobOrderNbr != null)
                  {
                      GLTranExtension glTex = PXCache<GLTran>.GetExtension<GLTranExtension>(glTran);
                      glTex.UsrJobOrderNbr = apTex.UsrJobOrderNbr;
                  }
              }

              APInvoice api = PXResult<APInvoice>.Current;
              if (api != null && api.InvoiceNbr != null)
              {
                  GLTranExtension glTex = PXCache<GLTran>.GetExtension<GLTranExtension>(glTran);
                  glTex.UsrInvoiceNbr = api.InvoiceNbr;
              }

              APTaxTran apTax = PXResult<APTaxTran>.Current;
              if (apTax != null)
              { 
                  APTaxTranExtension apTaxEx = PXCache<APTaxTran>.GetExtension<APTaxTranExtension>(apTax);
                  if (apTax != null && apTaxEx.UsrNoSeriFaktur != null)
                  {
                      GLTranExtension glTex = PXCache<GLTran>.GetExtension<GLTranExtension>((GLTran)e.Row);
                      glTex.UsrNoSeriFaktur = apTaxEx.UsrNoSeriFaktur;

                  }
              }
          });
          return del(je, ref doc, res, out pmDoc);
      }
    #region Event Handlers
    #endregion
  }
}

请帮我提供我的目标，