当另一个 Selector 值更改时自定义 Selector

Question

我需要在案例屏幕上自定义 CaseClassID 选择器。当在附加信息选项卡下的案例屏幕上选择合同字段时，它应该以不同的值刷新。现在，CaseClass 正在显示 CRCase 表中的值。但是，现在如果合同更改，应该触发 fieldupdatedEvent，并且 CaseClassID 选择器应该有相应的值。请建议我如何在 FieldUpdated 事件处理程序中自定义 CaseClassID 选择器

protected virtual void CRCase_ContractID_FieldUpdated(PXCache sender, 
      PXFieldUpdatedEventArgs e)
    {
        CRCase cc = (CRCase)e.Row;
        if (cc == null) return;
        CRCase_CaseClassID_CacheAttached(sender);
    }

[PXMergeAttributes(Method = MergeMethod.Replace)]
    [PXDBString(10, IsUnicode = true, InputMask = ">aaaaaaaaaa")]
    [PXDefault(typeof(Search<CRSetup.defaultCaseClassID>))]
    [PXUIField(DisplayName = "Class ID")]
    [PXSelector(typeof(Search2<CRCaseClass.caseClassID, 
         InnerJoin<CaseContract, On<CaseContract.caseClassID, 
            Equal<CRCaseClass.caseClassID>>,
        InnerJoin<Contract, On<CaseContract.contractID, 
            Equal<Contract.templateID>>,
        InnerJoin<CRCase, On<Contract.contractID, 
            Equal<Current<CRCase.contractID>>>>>>,
        Where<CaseContract.active, Equal<True>>>),
               DescriptionField = typeof(CRCaseClass.description),
               CacheGlobal = true)]
    [PXMassUpdatableField]
    public virtual String CaseClassID { get; set; }
    public virtual void CRCase_CaseClassID_CacheAttached(PXCache sender){

    }

Answer 1

覆盖 CaseClassID 选择器并在其类型参数中添加您的自定义逻辑。 您可以创建自定义未绑定字段以根据您的业务逻辑过滤选择器。当您想更改选择器过滤器时，只需更改自定义字段即可。

#region CaseClassID
public abstract class caseClassID : IBqlField { }

[PXDBString(10, IsUnicode = true, InputMask = ">aaaaaaaaaa")]
[PXDefault(typeof(Search<CRSetup.defaultCaseClassID>))]
[PXUIField(DisplayName = "Class ID")]
// Use your custom field (filterCaseClassID) in the selector type parameter
[PXSelector(typeof(Search<CRCaseClass.caseClassID,
                   Where<CRCaseClass.caseClassID, Equal<filterCaseClassID>>>),
                   DescriptionField = typeof(CRCaseClass.description), 
                   CacheGlobal = true)]
[PXMassUpdatableField]
public virtual String CaseClassID { get; set; }
#endregion

#region FilterCaseClassID
public abstract class filterCaseClassID : IBqlField { }

[PXDBString(10, IsUnicode = true, InputMask = ">aaaaaaaaaa")]
// Change the value of your custom field to set the selector filter
public virtual String FilterCaseClassID { get; set; }
#endregion

编辑图形扩展中的覆盖 DAC 字段并使用来自另一个 DAC 的字段过滤选择器：

using PX.Data;
using PX.Objects.CR.MassProcess;
using System;

namespace PX.Objects.CR
{
    [Serializable]
    public class CaseContract : IBqlTable
    {
        public abstract class caseClassID : IBqlField { }

        [PXString(10, IsUnicode = true)]
        [PXUIField(DisplayName = "Case Class ID")]
        [PXSelector(typeof(CRCaseClass.caseClassID),
                    DescriptionField = typeof(CRCaseClass.description))]
        public virtual String CaseClassID
        {
            get; set;
        }
    }

    public class CRCaseMaint_Extension : PXGraphExtension<CRCaseMaint>
    {
        [PXMergeAttributes(Method = MergeMethod.Replace)]
        [PXDBString(10, IsUnicode = true, InputMask = ">aaaaaaaaaa")]
        [PXDefault(typeof(Search<CRSetup.defaultCaseClassID>))]
        [PXUIField(DisplayName = "Class ID")]
        [PXSelector(typeof(Search<CRCaseClass.caseClassID,
                           Where<Current<CaseContract.caseClassID>, IsNull,
                           Or<CRCaseClass.caseClassID, Equal<Current<CaseContract.caseClassID>>>>>),
                    DescriptionField = typeof(CRCaseClass.description),
                    CacheGlobal = true)]
        [PXMassUpdatableField]
        public virtual void CRCase_CaseClassID_CacheAttached(PXCache sender)
        {
        }
    }
}