cancel
Showing results for 
Search instead for 
Did you mean: 
Reply
Helper V
Helper V

Two Quick Questions: Dynamic Labels and Duplicate Prevention

Hi.  Here is what I'm trying to do.  

 

Dynamic Labels:

InputBox = 27

Label3 = COUNTA(Table1.Name)= 17

Label4 = "There are" Label3.value "Out of " Textinput3.text


I have the inputbox and label3 built.  How do I add their values to label 4?  

 

Duplicate Prevention

 

I'm making a signup sheet and I want to make sure the same user ID doesn't get entered multiple times by accident.  I was thinking using a lookup and if it finds anything then the submit button disables.  Is there a better way to do this?

1 ACCEPTED SOLUTION

Accepted Solutions
Super User III
Super User III

Try this:

 

InputBox = 27   (Presumable that this is what the user types and that you named this Textinput3)

Label3.Text = COUNTA(Table1.Name (assuming you were stating the result from CountA was = 17)

Label4.Text = "There are " & Label3.Text & " Out of " & Textinput3.text

_____________________________________________________________________________________
Digging it? - Click on the Thumbs Up. Solved your problem? - Click on Accept as Solution. Others seeking the same answers will be happy you did.
Check out my PowerApps Videos too!

View solution in original post

5 REPLIES 5
Super User III
Super User III

Try this:

 

InputBox = 27   (Presumable that this is what the user types and that you named this Textinput3)

Label3.Text = COUNTA(Table1.Name (assuming you were stating the result from CountA was = 17)

Label4.Text = "There are " & Label3.Text & " Out of " & Textinput3.text

_____________________________________________________________________________________
Digging it? - Click on the Thumbs Up. Solved your problem? - Click on Accept as Solution. Others seeking the same answers will be happy you did.
Check out my PowerApps Videos too!

View solution in original post

Super User
Super User

You can try preventing duplicated user IDs in the datasource - if you are using SharePoint, go into the settings for that Column and set 'Enforce unique values' to true.

If using SQL you can set a Unique Constraint on the column.

Oh duh, I forgot the &'s.  Thank you!

As of right now, it's just an excel sheet.

Sorry I didn't even see the second part of your original post.

 

So, on your thinking, yes - that is pretty much a good way to do it.

I was thinking something like this on the DisplayMode property:

   If(Lookup(YourTable, YourUserIDColumn=WhatEverControlHasTheNewIDinIt.Text, true), DisplayMode.Edit, DisplayMode.Disabled)

 

 

_____________________________________________________________________________________
Digging it? - Click on the Thumbs Up. Solved your problem? - Click on Accept as Solution. Others seeking the same answers will be happy you did.
Check out my PowerApps Videos too!

Helpful resources

Announcements
New Badges

New Solution Badges!

Check out our new profile badges recognizing authored solutions!

New Power Super Users

Congratulations!

We are excited to announce the Power Apps Super Users!

Power Apps Community Call

Power Apps Community Call: February

Did you miss the call? Check out the Power Apps Community Call here.

Microsoft Ignite

Microsoft Ignite

Join digitally, March 2–4, 2021 to explore new tech that's ready to implement. Experience the keynote in mixed reality through AltspaceVR!

Top Solution Authors
Top Kudoed Authors
Users online (73,047)