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gjeh
Responsive Resident
Responsive Resident

variable showing different content

Hello All,

 

In an app i am experimenting with I set  2 variables (start time and end time [strings  "hh:mm"]).

On 2 pages i show these variables,  for one of the variables both page shows the correct data which is a time.

However the other variable shows correctly as a time on one page but as a date (12-7-2020) which isn't a date selected in any datepicker in the app at this time. 

 

screenshot:error.png

How comes my variable is showing this incorrect information ?

25 REPLIES 25
gjeh
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unfortunately, using that code gave me the same results as the codes in my reply.

 

this is what i was refering to (from my earlier post):

 

I will detail 2 labels now.  One is the label (we will now call Label1  ; this is the label with the bug) which shows either:

Leave End Date; Outpass Start-Time or DaysDelay 

And the label below it (now label2 ; this works fine) which shows:

Leave Adress ; Outpass End-Time ; DelayReason 

 

This is the .Text code for the buggy label, label 1 :

 

If(varSelectedLeaveType="Leave Request";dpLeaveEndDate.SelectedDate;varSelectedLeaveType="Out Pass Request";varOutPassStartTime;varSelectedLeaveType="Return from Leave note";varDaysDelay)

 

Only varOutPassStartTime is shown incorrectly (as seen in the image above the content of varOutPassStartTime should be correct)

 

This is the .Text code for the working label, label 2:

 

If(varSelectedLeaveType="Leave Request";tiAddressLeave.Text;If(varSelectedLeaveType="Out Pass Request";varOutPassEndTime;If(varSelectedLeaveType="Return from Leave note";TextInput1.Text)))

 

 

Yes I noticed that in label one I only state If( )  once and in label 2 several times. However If i change the label 1 code to:

 

If(varSelectedLeaveType="Leave Request";dpLeaveEndDate.SelectedDate;If(varSelectedLeaveType="Out Pass Request";varOutPassStartTime;If(varSelectedLeaveType="Return from Leave note";varDaysDelay)))

 

(which is the code from label 2 copied over to label 1 and then only replaced the things that should happen if each of the conditions is true)This is the the result (an additional bug):

 

Start time is now shown as a date yet the variable content is unchanged, also days delay now doens't show properly (variable content remains unchanged) and it is shown as 1-1-2001    (it's value = 1). 

WarrenBelz
Most Valuable Professional
Most Valuable Professional

Hi @gjeh ,

Apart from Switch statements (as below) being neater, in particular, have you considered making varDaysDelay and varOutPassStartTime calculated variables?

 

Switch(
   varSelectedLeaveType;
   "Leave Request";dpLeaveEndDate.SelectedDate;
   "Out Pass Request";varOutPassStartTime;
   "Return from Leave note"; varDaysDelay
)
Switch(
   varSelectedLeaveType;"Leave Request";tiAddressLeave.Text;
   varSelectedLeaveType="Out Pass Request"; varOutPassEndTime;
   varSelectedLeaveType="Return from Leave note"; TextInput1.Text
)

 

 

Please click Accept as solution if my post helped you solve your issue. This will help others find it more readily. It also closes the item. If the content was useful in other ways, please consider giving it Thumbs Up.

Hi,

It's a long thread, but it resembles some weird behavior I had in the past, with labels not updating and forms submitting old values. 

After opening a support ticket, I learned that some fields may evaluate only once, even if it is pointing to a variable. It may not pick up the variable update. 

So I learned the wonders of using Coalesce() to fetch the first non-null value in a series. By making the Text = Coalesce(value1, value2, ...), the function forces reevaluation every time. It is a basic fix I learned for a lot of issues that were apparently unrelated, and now I carry it in my PowerApps utility belt.

 

I don't know if it will help your case at all, but it cannot hurt to try. 

gjeh
Responsive Resident
Responsive Resident


@WarrenBelz wrote:

Hi @gjeh ,

Apart from Switch statements (as below) being neater, in particular, have you considered making varDaysDelay and varOutPassStartTime calculated variables?

 


Switch statements didn't occur to me at all, you are right they do make for a much more readable code.

 

Also im sorry but I don't know what you mean by calculated variable. I would guess the content of the variable would be a formula to calculate delay or concatenate start hour with start minute.  But if that is what you mean I don't yet see how the variable would get initialized and updated during runtime.   there is probably something very obvious i am missing here, i am by no way an expert. 

gjeh
Responsive Resident
Responsive Resident


@TiagoFreire wrote:

Hi,

It's a long thread, but it resembles some weird behavior I had in the past, with labels not updating and forms submitting old values. 

After opening a support ticket, I learned that some fields may evaluate only once, even if it is pointing to a variable. It may not pick up the variable update. 

So I learned the wonders of using Coalesce() to fetch the first non-null value in a series. By making the Text = Coalesce(value1, value2, ...), the function forces reevaluation every time. It is a basic fix I learned for a lot of issues that were apparently unrelated, and now I carry it in my PowerApps utility belt.

 

I don't know if it will help your case at all, but it cannot hurt to try. 



Thanks, I have never heard of this function before. I will read into it and see if I could use it to fix my issue. As for as far as I can deduct with reasoning it should be ''weird stuff'' happening when it shouldn't.

gjeh
Responsive Resident
Responsive Resident

What I ended up doing is instead of making 1 block of labels that depend on the SelectedLeaveType to show the respective information, i created 3 blocks of labels which each showed the details on 1 specific LeaveType and then have these blocks be visible or invisible based on the SelectedLeaveType.. a bit less clean of a solution but what I can conclude is that:

 

 

the issue was not caused by faulty formula's but rather PowerApps not working as intended.

 

with all the tests i've performed and things i've tried out this is the only thing that can be concluded.

 

 

 

So.... solved but not solved; to any future readers with similar issues - find a way to do the same thing but differently because you won't get it to work.

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