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dyee4613
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
RandyHayes
Super User
Super User

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

_____________________________________________________________________________________
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View solution in original post

5 REPLIES 5
RandyHayes
Super User
Super User

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 below. Solved your problem? - Click on Accept as Solution below. Others seeking the same answers will be happy you did.
Check out my PowerApps Videos too! And, follow me on Twitter @RandyHayes

Really want to show your appreciation? Buy Me A Cup Of Coffee!

View solution in original post

PaulD1
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 below. Solved your problem? - Click on Accept as Solution below. Others seeking the same answers will be happy you did.
Check out my PowerApps Videos too! And, follow me on Twitter @RandyHayes

Really want to show your appreciation? Buy Me A Cup Of Coffee!

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