The mentioned methods do not work for SharePoint custom forms, as is shown in the UserVoice post.
And also quoting the community announcement post:
LaunchTarget does not work in embedded apps, such as apps hosted in
Power BI or SharePoint, and should be avoided.
Using Launch function for redirection on the form (in OnSuccess property, for example) will ...
Set visible property of label control to:
Not(Dropdown1_1.Selected.Site <> "Please Select")
Update from comments:
As @RobertLindgren suggested, below should also work for you:
Dropdown1_1.Selected.Site = "Please Select"
Please the following steps:
Step1: Select an item in the list to open the "Edit Form" panel
Step2: On the "Edit Form" panel, click on "Edit columns" link
Step3: On the "Edit columns in the form" panel, select column and click "Edit conditional formula"
Step4: On the "Edit conditional formula for xxx ...
Neither the new Image column or the Hyperlink or Picture column can be directly updated using flow.
A workaround is to use Send HTTP request to SharePoint action to update Hyperlink or Picture field.
Please see the references here: Microsoft Flow – Update a Hyperlink or Picture field.
/ MS Flow and SharePoint Picture Columns: A Trick.
Here is the Form validation formula:
Find days from TODAY() to the first Monday using WEEKDAY(date,return_type), where date is TODAY(), return_type=2. It returns weekdays numbered 1 (Monday) through 7 (Sunday)
Add days (step 1) plus 1 to TODAY() to get the first ...
The logic would be a lot easier to achieve in a SharePoint list - using Calculated column.
Although I do not recommend writing the logic all in PowerApps since it increases the loading time tremendously, it is workable. ASSESSMENT RATING field should be Read-Only either way.
Assuming you have this PowerApps form attached to a SharePoint list, column value ...