Acumatica采购订单字段设为可编辑时遇CS1001错误求助

尝试在Acumatica采购订单页面将不可编辑的POOrder.SOOrderNbr字段设置为可编辑，编写了自定义扩展代码，但验证项目时出现编译错误。

原自定义代码 #

using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using PX.Common;
using PX.Data;
using PX.Objects.GL;
using PX.Objects.CM.Extensions;
using PX.Objects.CS;
using PX.Objects.CR;
using PX.Objects.TX;
using PX.Objects.IN;
using PX.Objects.EP;
using PX.Objects.AP;
using PX.Objects.AR;
using PX.Objects.SO;
using SOOrder = PX.Objects.SO.SOOrder;
using SOLine = PX.Objects.SO.SOLine;
using PX.Data.DependencyInjection;
using PX.Data.ReferentialIntegrity.Attributes;
using PX.LicensePolicy;
using PX.Objects.PM;
using CRLocation = PX.Objects.CR.Standalone.Location;
using PX.Objects.AP.MigrationMode;
using PX.Objects.Common;
using PX.Objects.Common.Discount;
using PX.Data.BQL.Fluent;
using PX.Data.BQL;
using PX.Objects.Common.Bql;
using PX.Objects.Extensions.CostAccrual;
using PX.Objects.DR;
using PX.Data.WorkflowAPI;
using PX.Objects.Common.Scopes;
using PX.Objects.IN.Services;
using PX.Objects.Extensions.MultiCurrency;
using PX.Data.Description;
using PX.Objects;
using PX.Objects.PO;

namespace PX.Objects.PO
{
  public class POOrderEntry_Extension : PXGraphExtension<PX.Objects.PO.POOrderEntry>
  {
    #region Event Handlers

    protected static void POOrderEntry_RowSelected(PXCache cache, PXRowSelectedEventArgs e, PXRowSelected baseHandler)
    {
      baseHandler?.Invoke(cache, e);
      var row = (POOrderEntry)e.Row;
      PXUIFieldAttribute.SetEnabled<POOrder.SOOrderNbr.>(cache, row, true);
    }
    #endregion
  }
}

错误信息 #

\App_RuntimeCode\POOrderEntry.cs(50): error CS1001: Identifier expected

解决方案 #

错误原因及修正点： #

1. 字段名语法错误：POOrder.SOOrderNbr.末尾多了一个多余的点，正确的字段引用应为POOrder.SOOrderNbr
2. 实体类型转换错误：e.Row是采购订单的数据行，对应POOrder实体，而非图类POOrderEntry，转换类型错误会导致后续逻辑异常
3. 方法修饰符与命名规范：事件方法建议使用virtual修饰符，且命名改为POOrder_RowSelected更符合Acumatica的事件处理规范

修正后的代码： #

using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using PX.Common;
using PX.Data;
using PX.Objects.GL;
using PX.Objects.CM.Extensions;
using PX.Objects.CS;
using PX.Objects.CR;
using PX.Objects.TX;
using PX.Objects.IN;
using PX.Objects.EP;
using PX.Objects.AP;
using PX.Objects.AR;
using PX.Objects.SO;
using SOOrder = PX.Objects.SO.SOOrder;
using SOLine = PX.Objects.SO.SOLine;
using PX.Data.DependencyInjection;
using PX.Data.ReferentialIntegrity.Attributes;
using PX.LicensePolicy;
using PX.Objects.PM;
using CRLocation = PX.Objects.CR.Standalone.Location;
using PX.Objects.AP.MigrationMode;
using PX.Objects.Common;
using PX.Objects.Common.Discount;
using PX.Data.BQL.Fluent;
using PX.Data.BQL;
using PX.Objects.Common.Bql;
using PX.Objects.Extensions.CostAccrual;
using PX.Objects.DR;
using PX.Data.WorkflowAPI;
using PX.Objects.Common.Scopes;
using PX.Objects.IN.Services;
using PX.Objects.Extensions.MultiCurrency;
using PX.Data.Description;
using PX.Objects;
using PX.Objects.PO;

namespace PX.Objects.PO
{
  public class POOrderEntry_Extension : PXGraphExtension<PX.Objects.PO.POOrderEntry>
  {
    #region Event Handlers

    protected virtual void POOrder_RowSelected(PXCache cache, PXRowSelectedEventArgs e, PXRowSelected baseHandler)
    {
      baseHandler?.Invoke(cache, e);
      var row = e.Row as POOrder;
      if (row == null) return;
      PXUIFieldAttribute.SetEnabled<POOrder.SOOrderNbr>(cache, row, true);
    }
    #endregion
  }
}

额外说明：增加了row不为空的判断，避免空引用异常，提升代码稳定性。

内容的提问来源于stack exchange，提问作者Aleks Iwan