Selector does not work correctly

Try using 'IsNull' instead of 'Equal<Null>'

Also, consider rewriting in F-Bql. It's so much easier to read and write.

Hi, ​@bihalivan15 
Try replacing Equal<Null> with IsNull, like this:

And<Where<Current<DailyFieldReportExt.usrBranchIDFilterLabor>, IsNull,
   Or<PMTask.defaultBranchID, Equal<Current<DailyFieldReportExt.usrBranchIDFilterLabor>>>>

And<Where<Current<DailyFieldReportExt.usrBranchIDFilterLabor>, IsNull,
   Or<PMTask.defaultBranchID, Equal<Current<DailyFieldReportExt.usrBranchIDFilterLabor>>>>

I am test this and see some problem. When pmTask have defaultBranchID null value. Filter does not find them. Example :When usrBranchIDFilterLabor is null I see all pm task where defaultBranchID is not null. Why?

I am test this and have problem. When usrBranchIDFilter is null I saw all pm task where defaultBranchID is not null

Try this instead:

#region UsrProjectTaskFilterLabor
public abstract class usrProjectTaskFilterLabor : PX.Data.BQL.BqlString.Field<usrProjectTaskFilterLabor> { }
[PXDBString]
[PXUIField(DisplayName = Messages.ProjectTask)]
[PXSelector(typeof(SearchFor<PMTask.taskCD>.
    In<
        SelectFrom<PMTask>.
        Where<PMTask.projectID.IsEqual<DailyFieldReport.projectId.FromCurrent>.
            And<PMTask.status.IsNotEqual<ProjectTaskStatus.planned>>.
            And<DailyFieldReportExt.usrBranchIDFilterLabor.FromCurrent.IsNull.
                Or<PMTask.defaultBranchID.IsEqual<DailyFieldReportExt.usrBranchIDFilterLabor.FromCurrent>>>>>),
    typeof(PMTask.taskCD),
    typeof(PMTask.description),
    ValidateValue = false)]
public virtual string UsrProjectTaskFilterLabor { get; set; }
#endregion

Have you tried restarting the instance? Selectors can be very sensitive to changes. I have already had to remove and re-add a selector to get it working.

I restarting the instance and remove and re-add selector. Its not working:(

#region UsrProjectTaskFilterLabor
        public abstract class usrProjectTaskFilterLabor : PX.Data.BQL.BqlString.Field<usrProjectTaskFilterLabor> { }
        [PXDBString]
        [PXUIField(DisplayName = Messages.ProjectTask)]
        [PXSelector(typeof(SearchFor<PMTask.taskCD>.
            In<
                SelectFrom<PMTask>.
                Where<PMTask.projectID.IsEqual<DailyFieldReport.projectId.FromCurrent>.
                    And<PMTask.status.IsNotEqual<ProjectTaskStatus.planned>>.
                    And<DailyFieldReportExt.usrBranchIDFilterLabor.FromCurrent.IsNull>>>),
            typeof(PMTask.taskCD),
            typeof(PMTask.description),
            ValidateValue = false)
        ]
        public virtual string UsrProjectTaskFilterLabor { get; set; }
        #endregion
i write this and see problem in And<DailyFieldReportExt.usrBranchIDFilterLabor.FromCurrent.IsNull»
With this i see 0 rows. usrBranchIDFilterLabor.FromCurrent.IsNull not working

#region UsrBranchIDFilterLabor
        public abstract class usrBranchIDFilterLabor : PX.Data.BQL.BqlInt.Field<usrBranchIDFilterLabor> { }
        [Branch(useDefaulting: false, PersistingCheck = PXPersistingCheck.Nothing)]
        [PXDefault(typeof(Search<Branch.branchID, Where<Branch.branchID, Equal<Current<AccessInfo.branchID>>>>), PersistingCheck = PXPersistingCheck.Nothing)]
        [PXUIField(DisplayName = Messages.Branch, Visibility = PXUIVisibility.SelectorVisible)]
        public virtual Int32? UsrBranchIDFilterLabor { get; set; }
        #endregion

it`s my field UsrBranchIDFilterLabor