带有网格的自定义选项卡不会在导航主数据时刷新

Question

我创建了一个新表，它是供应商的子表。在这里，我想为每个供应商存储一些日期。下面是表结构（其中CompanyID和RecordID是PrimaryKey，RecordID是Identity with seed 1）-

CREATE TABLE [dbo].[VendorClosedDates](
	[CompanyID] [int] NOT NULL,
	[RecordID] [int] IDENTITY(1,1) NOT NULL,
	[VendorID] [int] NOT NULL,
	[VendorCloseDate] [datetime] NOT NULL,
	[tstamp] [timestamp] NOT NULL,
	[CreatedByID] [uniqueidentifier] NOT NULL,
	[CreatedByScreenID] [char](8) NOT NULL,
	[CreatedDateTime] [datetime] NOT NULL,
	[LastModifiedByID] [uniqueidentifier] NOT NULL,
	[LastModifiedByScreenID] [char](8) NOT NULL,
	[LastModifiedDateTime] [datetime] NOT NULL,
 CONSTRAINT [PK_VendorClosedDates] PRIMARY KEY CLUSTERED 
(
	[CompanyID] ASC,
	[RecordID] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]

基于此，我创建了一个带有数据视图的自定义项目，并添加了一个带有网格的新选项卡，以显示新表中的所有日期（仅 1 列）。根据我浏览的供应商，这些网格应该刷新并只显示相关数据。但是，由于某种原因，它没有刷新，甚至没有显示任何数据。下面是屏幕截图和一些代码 sn-p 以帮助理解我是如何编写代码的。可能是我错过了一些东西。

网格代码-

<px:PXTabItem Text="Closed Dates">
<Template>
  <px:PXGrid runat="server" ID="CstPXGrid79" DataSourceID="ds" SkinID="DetailsInTab" Height="150px" Width="100%" AdjustPageSize="Auto" AllowPaging="True">
	<Levels>
	  <px:PXGridLevel DataMember="ClosedDates">
		<Columns>
		  <px:PXGridColumn DataField="VendorCloseDate" Width="90" /></Columns>
		<RowTemplate>
		  <px:PXDateTimeEdit runat="server" ID="CstPXDateTimeEdit82" DataField="VendorCloseDate" /></RowTemplate></px:PXGridLevel></Levels>
	<Mode AllowAddNew="True" AllowDelete="True" AllowUpdate="True" />
	<AutoSize MinHeight="1000" /></px:PXGrid></Template></px:PXTabItem>

DAC sn-p-

#region RecordID
public abstract class recordID : PX.Data.IBqlField
{
}
protected int? _RecordID;
[PXDBIdentity(IsKey = true)]
public virtual int? RecordID
{
	get
	{
		return this._RecordID;
	}
	set
	{
		this._RecordID = value;
	}
}
#endregion
#region VendorID
public abstract class vendorID : PX.Data.IBqlField
{
}
protected int? _VendorID;
[PXDBInt()]
[PXDefault(typeof(Vendor.bAccountID))]
public virtual int? VendorID
{
	get
	{
		return this._VendorID;
	}
	set
	{
		this._VendorID = value;
	}
}
#endregion
#region VendorCloseDate
public abstract class vendorCloseDate : PX.Data.IBqlField
{
}
protected DateTime? _VendorCloseDate;
[PXDBDate()]
[PXUIField(DisplayName = "Vendor Close Date")]
public virtual DateTime? VendorCloseDate
{
	get
	{
		return this._VendorCloseDate;
	}
	set
	{
		this._VendorCloseDate = value;
	}
}
#endregion

VendorMaint扩展下的Dataview和Vendor_RowSelecting事件-

[PXViewName("ClosedDates")]
public PXSelect<VendorClosedDates,
		Where<VendorClosedDates.vendorID, Equal<Current<Vendor.bAccountID>>>> ClosedDates;

protected virtual void Vendor_RowSelecting(PXCache cache, PXRowSelectingEventArgs e)
{
	ClosedDates.View.RequestRefresh();
}

任何建议。

Answer 1

除了两件事之外，一切看起来都不错：

1. PXGrid.AutoSize 缺少 Enabled 属性设置为 True（我还建议将 MinHeight 更改为 200，因为 1000 太多了）

2. 在 RowSelected 处理程序中绝对不必要地使用 RequestRefresh 方法 - 它必须从您的 BLC 扩展中删除：

   protected virtual void Vendor_RowSelecting(PXCache cache, PXRowSelectingEventArgs e)
   {
       ClosedDates.View.RequestRefresh();
   }
   

另外，我还建议在 VendorClosedDates DAC 内的 VendorID 字段上用 PXDBDefault 替换 PXDefault 属性，并用 PXParent 属性另外装饰 VendorID：

[Serializable]
public class VendorClosedDates : IBqlTable
{
    ...

    #region VendorID
    [PXDBInt()]
    [PXDBDefault(typeof(Vendor.bAccountID))]
    [PXParent(typeof(Select<Vendor, Where<Vendor.bAccountID, Equal<Current<VendorClosedDates.vendorID>>>>))]
    public int? VendorID { get; set; }

    public class vendorID : IBqlField { }
    #endregion

    ...
}

1. Vendor.BAccountID 字段映射到标识列。在这种情况下需要使用 PXDBDefault 属性，否则 VendorClosedDates.VendorID 字段将不会被数据库生成的新 Vendor.BAccountID 值更新。

2. 从应用程序中删除 Vendor 时，级联删除 VendorClosedDates 记录需要 PXParentAttribute