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Daryl_K
Helper IV
Helper IV

Drop down default value

I have a drop down that I wanted to set a default value on a new record, so entered into the DefaultSelectedItems this rule: LookUp(Choices('Support'.Status),Value="New"), where "Support" is the name of my SharePoint list and "Status" is the name of the column in question.

 

This works fine, but there is a side effect: opening existing records where the value is something other than "New" does not display the actual selected value, but only "New." The default selection overrides the actual value.

 

If I set DefaultSelectedItems back to Parent.Default it displays existing records correctly, but I lose the desired selected value (the drop down is just blank on creation of a new record).

 

Curious Catch 22 that I am wondering if someone has an idea how to get around. I was thinking using the OnVisible property of the entire form and checking if that drop down is blank then setting it to "New" if so, but my limited Power App skills haven't been successful so far.

2 ACCEPTED SOLUTIONS

Accepted Solutions
iAm_ManCat
Most Valuable Professional
Most Valuable Professional

Hey @Daryl_K 

 

You probably jsut need to check for an existing item first then have your default only show if there isn't an existing value:

 

If(
   IsBlank(Parent.Default),
   LookUp(Choices('Support'.Status),Value="New"),
   Parent.Default
)

 

Could you give that a try and let me know if you encounter any issues with it,

 

Cheers,

Sancho


@iAm_ManCat
My blog


Please 'Mark as Solution' if someone's post answered your question and always 'Thumbs Up' the posts you like or that helped you!


Thanks!
You and everyone else in the community make it the awesome and welcoming place it is, keep your questions coming and make sure to 'like' anything that makes you 'Appy
Sancho Harker, MVP


View solution in original post

iAm_ManCat
Most Valuable Professional
Most Valuable Professional

Explain what you mean by change it with a pushbutton - are we talking about setting a specific value when a button is pressed?

 

Add this to the button (replacing the text bit with the Exact text of the choice you want):

UpdateContext({locStatus: "In Progress"})

 

Then in the dropdown, change the DefaultSelectedItems as follows by adding another condition check:

If(
   !IsBlank(locStatus),
   LookUp(Choices('Support'.Status),Value=locStatus),
   IsBlank(Parent.Default),
   LookUp(Choices('Support'.Status),Value="New"),
   Parent.Default
)

 

Cheers!


@iAm_ManCat
My blog


Please 'Mark as Solution' if someone's post answered your question and always 'Thumbs Up' the posts you like or that helped you!


Thanks!
You and everyone else in the community make it the awesome and welcoming place it is, keep your questions coming and make sure to 'like' anything that makes you 'Appy
Sancho Harker, MVP


View solution in original post

9 REPLIES 9
iAm_ManCat
Most Valuable Professional
Most Valuable Professional

Hey @Daryl_K 

 

You probably jsut need to check for an existing item first then have your default only show if there isn't an existing value:

 

If(
   IsBlank(Parent.Default),
   LookUp(Choices('Support'.Status),Value="New"),
   Parent.Default
)

 

Could you give that a try and let me know if you encounter any issues with it,

 

Cheers,

Sancho


@iAm_ManCat
My blog


Please 'Mark as Solution' if someone's post answered your question and always 'Thumbs Up' the posts you like or that helped you!


Thanks!
You and everyone else in the community make it the awesome and welcoming place it is, keep your questions coming and make sure to 'like' anything that makes you 'Appy
Sancho Harker, MVP


Daryl_K
Helper IV
Helper IV

Wow, that was easy. I am still a major noob so thank you for the suggestion - it worked perfectly!

iAm_ManCat
Most Valuable Professional
Most Valuable Professional

No worries, we've all gotta start somewhere 🙂


@iAm_ManCat
My blog


Please 'Mark as Solution' if someone's post answered your question and always 'Thumbs Up' the posts you like or that helped you!


Thanks!
You and everyone else in the community make it the awesome and welcoming place it is, keep your questions coming and make sure to 'like' anything that makes you 'Appy
Sancho Harker, MVP


So given the setup as it is, with your suggestions in place, if I wanted to also change the value of the dropdown from a pushbutton, any ideas how I would proceed without messing up what already is working?

 

I am trying to automate as much of this form as possible while still leaving the ability to manually change the status, which is why it's a dropdown.

iAm_ManCat
Most Valuable Professional
Most Valuable Professional

Explain what you mean by change it with a pushbutton - are we talking about setting a specific value when a button is pressed?

 

Add this to the button (replacing the text bit with the Exact text of the choice you want):

UpdateContext({locStatus: "In Progress"})

 

Then in the dropdown, change the DefaultSelectedItems as follows by adding another condition check:

If(
   !IsBlank(locStatus),
   LookUp(Choices('Support'.Status),Value=locStatus),
   IsBlank(Parent.Default),
   LookUp(Choices('Support'.Status),Value="New"),
   Parent.Default
)

 

Cheers!


@iAm_ManCat
My blog


Please 'Mark as Solution' if someone's post answered your question and always 'Thumbs Up' the posts you like or that helped you!


Thanks!
You and everyone else in the community make it the awesome and welcoming place it is, keep your questions coming and make sure to 'like' anything that makes you 'Appy
Sancho Harker, MVP


Thank you (again)! It works perfectly.

 

So, just for my understanding (and so I don't have to ask again) is locStatus a variable in this case? The button sets the variable to the desired value, then you've nested statements in the dropdown so that if locStatus is NOT blank (i.e., the button was pressed) use the locStatus variable for the dropdown value. If the variable IS blank then use the original IF statement where it's blank use "New" and if not read the list value.

 

Would I be correct to assume that variables are never persistent in PA so that on every form open locStatus will always start blank?

P.S. I also had another button I wanted to set it to resolved so I just reused these rules changing to the closed text and that also worked fine. 

 

iAm_ManCat
Most Valuable Professional
Most Valuable Professional

Everything you said in the first paragraph is right yes 🙂

 

With regards to the variables, there are two (technically 3) types of variables we can make/use.

UpdateContext() updates context variables - they exist in the context of that particular screen and will cease to exist when you change screens (until you return to the screen and press the button again)

 

Set() sets a global variable that you can access across your App (and which means you need to manage it when you want it to blank, as having a value perma-set would impact the code we used above for example as it would always be set and never reach the other conditions until we restarted the app or set it to blank manually

 

The last type is anything you define within a With statement, that is a variable that only exists within the context of that With, anything outside of that With(.......) will not be able to access it as it only exists in the moment that the With runs

 

Hope this helps makes the variables situation a bit clearer 🙂


@iAm_ManCat
My blog


Please 'Mark as Solution' if someone's post answered your question and always 'Thumbs Up' the posts you like or that helped you!


Thanks!
You and everyone else in the community make it the awesome and welcoming place it is, keep your questions coming and make sure to 'like' anything that makes you 'Appy
Sancho Harker, MVP


Thank you again - for the tutorial also!

 

P.S. I looked at your blog and noticed lots of PA stuff there, so I've bookmarked it!

apeawakening
Helper V
Helper V

Will this formula/logic work for person type column as well?

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