TwoGrids.cs

using System;
using PX.Data;

namespace Test
{
  public class TwoGrids : PXGraph<TwoGrids, TwoGrids.MasterTable>
  {
    public PXFilter<MasterTable> MasterView;
    
    public PXFilter<DetailsTableA> DetailsViewA;
    public PXFilter<DetailsTableB> DetailsViewB;
  
  
    public void MasterTable_RowSelected(PXCache sender, PXRowSelectedEventArgs e)
    {
      MasterTable row = (MasterTable)e.Row;
      
      bool val =  row == null || row.Status == "A";
      DetailsViewA.Cache.AllowSelect = val;
      DetailsViewB.Cache.AllowSelect = !val;          
    }

    [Serializable]
    public class MasterTable : IBqlTable
    {
      #region Status  
      public abstract class status : IBqlField { }  
      public const string ApprovedStatus = "A";
      public const string HoldStatus = "H";
  
      [PXDBString(1)]
      [PXDefault("H")]
      [PXStringList(new[] { HoldStatus, ApprovedStatus }, new[] { "On Hold", "Approved" })]
      [PXUIField(DisplayName = "Status")]
      public virtual String Status { get; set; }  
      #endregion
    }
    [Serializable]
    public class DetailsTableA : IBqlTable
    {
     #region Status  
      public abstract class fieldA: IBqlField { }  
      [PXDBString(1)]
      [PXUIField(DisplayName = "Field A")]
      public virtual String FieldA { get; set; }  
      #endregion
    }
    [Serializable]
    public class DetailsTableB : IBqlTable
    {
     #region Status  
      public abstract class fieldB: IBqlField { }  
      [PXDBString(1)]
      [PXUIField(DisplayName = "Field B")]
      public virtual String FieldB { get; set; }  
      #endregion
    }
  }
}