melinda's blog

1. Add the formula in your apps "OnStart"

ClearCollect(YourCollectionName,Choices('SharepointList'.ColumnName))

Took me a few minutes to figure this out on my VPS so I thought I would share it.

One my liquid web server in the WHM, type in "PHP" in the search. Then Click on MultiPHP Manager.

On you "Number" column select the drop down option "Column settings"

****Update- Due to changes in Power Apps, you must make sure that you have the "Enable Navigation function in App.OnStart" ticked in your App's Settings. Located in Settiings> Upcoming features> Retired

Sort (Search(
    If (Dropdown4.Selected.Result = "All",'DATASOURCE', Filter('DATASOURCE','ColumnName' = Dropdown4.Selected.Result)),
    SearchBox.Text, "ColumnName") ,Created,Descending)

****Created is the column that stores the created date in my Sharepoint list

I have two lists-

Master and the Child list
I am using the Master List's ID column and I created an integer column in the Child List called "CaseID". CaseID is my Key Column.

Here is the Flow.

For the Icon or button you use for a form submit.  Place formula in the "OnSelect" property.
(Tests for "true", a true result: submit the form, false result: it displays an error message on top of the page.)

Shows error in label

!IsBlank(DataCardValue7_1.Text) And !IsMatch(DataCardValue7_1.Text,Digit & Digit & Digit & Hyphen & Digit & Digit& Digit& Hyphen & Digit & Digit & Digit &Digit)

This Formula can go into the "OnSelect" property of the save or submit button.

If(IsMatch(DATACARDNUMBER.Text, 
           "^([a-zA-Z0-9_.-])+@(([a-zA-Z0-9-])+.)+([a-zA-Z0-9]{2,4})+$"
   ),
   SubmitForm(FORMNAME),
   Notify("Email not valid", NotificationType.Error)
)

This formula can go into a label to use on your screen.

This is a very easy solution but finding in on the internet was not. So I am adding it here.

In your powerApp insert label then add the below to it's "Text" Value