Date Field changes, when using Today() and 14 Days on a date

[Lefty]

Hi

I have an issue.

On my Canvas app form, linked to SPO. I have a date field with it set to todays date:

If(Form1_8.Mode=FormMode.View,Parent.Default,Today())

and another field on the same screen set to 14 days from that date:  

If(Form1_8.Mode=FormMode.View,Parent.Default,DateAdd(DataCardValue66.SelectedDate,14,Days)) 

Now this works when the form is in view mode for other users, but for me and another user, the for DefaultMode of the form is set to:

If(VarUser = "MY@Email.com" || VarUser = "MY11@Email.com", FormMode.Edit, FormMode.View)

So every time I view the form, the field is showing as today 07/04/2020 and the +14 days date field also changes while i'm on the screen. I dont think it changes the item if i view it as a user or view it in SPO.

When I come to this screen for the first time, i need the ability to change both the dates, but once i submit the form, ideally I want to block the dates from being changed.

I'm using the same screen for when I come to enter the actual dates for the first time, and if i revisit the same screen to make a change those dates change. 

Any idea how i can set those dates once and then they dont change?

[Lefty · Accepted solution]

@v-xida-msft 

Thanks for your help, the logic was needed on the default property of both date fields:

If(IsBlank(ThisItem.ColumnName),Today(), ThisItem.ColumnName)

This now retains the date that i submit, but is today if there is no data in the SPO list.

Thanks