ClearCollect in OnStart or OnVisible

[Yoshimitsu411]

Hello

From a performance perspective, is it better to have my ClearCollect code running in the OnStart of my App or OnVisible of the screen or when navigating back from the Success screen?

I have a screen (scrEmployees) with one gallery which displays more than 2000 items from a SharePoint list. I can also update an item in this gallery. Is it better to have ClearCollect in the OnVisible of the screen such that after editing it will refresh the collection or should I call ClearCollect in the success screen before navigating back to the previous screen scrEmployees?

Also, is there a better way to write the code below? I'm only doing this because the delegation limit is set to 500. I don't want to increase it to 2000.

Concurrent(
    ClearCollect(
        EmpNew, Filter(Employees, 'Employee Status'.Value="New")
    ),
    ClearCollect(
        EmpInProgress, Filter(Employees, 'Employee Status'.Value="In Progress")
    ),
    ClearCollect(
        EmpCompleted, Filter(Employees, 'Employee Status'.Value="Completed")
    ),
    ClearCollect(
        EmpPending, Filter(Employees, 'Employee Status'.Value="Pending")
    ),
    ClearCollect(
        EmpClosed, Filter(Employees, 'Employee Status'.Value="Closed")
    )
);
ClearCollect(
    EmployeesCollection,
    EmpNew,
    EmpInProgress,
    EmpCompleted,
    EmpInvoicePending,
    EmpClosed
)

I'm keen to know how best to manage this ClearCollect call without slowing down performance as I have approximately half a dozen people using the app at any given time and several screens like the one above in the future.

Thanks

Yoshi

[WarrenBelz]

Hi @Yoshimitsu411 ,

OnStart is fine and the number of people (in that small number) will have no effect. You are also using Concurrent and all the filters are Delegable, however a Collection in itself is subject to the Delegation limit, so each collection is limited to 500 records (and the end one a maximum of 2,500 as a result).

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[Yoshimitsu411]

Thanks @WarrenBelz , that also answers another issue I was having with why my collection wasn't showing all the status values in my filter gallery. 

I am only seeing In Progress, Completed and Invoice Pending and that's probably because there are more than 2000 items and is being restricted due to delegationas you mentioned. I didn't realise Collections had restrictions which is why I used Concurrent to work around it. I might have to read up on this a bit more.

Any suggestions how how I can see all my Status values and a count in my filter gallery?

For example

New (14) >

In Progress (433) >

Completed (569) >

Invoice Pending (840) >

Closed (750) >

In reality, I'm only seeing.

In Progress (433) >

Completed (569) >

Invoice Pending (840) >

Thanks

Yoshi

[WarrenBelz]

Hi @Yoshimitsu411 ,

I would have thought that you would get the total of all five collections in the last one - try this to see if it makes a difference (you should not however have to do this)

ClearCollect(
    EmployeesCollection,
    EmpNew
);
Collect(
   EmployeesCollection,
   EmpInProgress
);
Collect(
   EmployeesCollection,
    EmpCompleted
);
Collect(
   EmployeesCollection,
    EmpInvoicePending
);
Collect(
   EmployeesCollection,
   EmpClosed
)

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[Yoshimitsu411]

Thanks @WarrenBelz , I worked it out.

In my filter gallery > Items = Sort(Distinct(EmployeesCollection, 'Employee Status'.Value),Result,Ascending)

I then added a label to display the total number for each distinct status in the gallery using my list data source and not the collection > Text = CountRows(Filter([@'Employees'], 'Employee Status'.Value=ThisItem.Result))