Detect If PenInput is blank or empty

(0) Share

Report

Posted on by AnthonyPhan

284

Hi,

My app has a pen input which is acting as a signature field. I need to detect if there is actually a signature inside the the pen input. How can i do this?

I have tried checking for the following property

IsBlank(PenInput_Supervisor.Image)

However it will always return true even when i have not drawn anythign inside the pen input.

Categories:

Building Power Apps

I have the same question (0)

All responses (3)

Answers (0)

Sort by

Jeff_Thorpe 6,085 Super User 2024 Season 1 on at

Like (2)

Report
Copy link

Link copied!

There isn't a property that will give you that information. @Shanescows posted a work around in the discussion listed below.

https://powerusers.microsoft.com/t5/General-Discussion/How-do-you-determine-if-Pen-Input-is-blank/m-p/84079#M32347

Was this reply helpful? Yes No
Shanescows 2,218 Most Valuable Professional on at

Like (1)

Report
Copy link

Link copied!

Thank you @Jeff_Thorpe

@AnthonyPhanI also have since made a video that shows how I did it with my working consent form. Please check it out and let me know if it isn't what you are looking for.

PowerApps Conditional Formatting with the Pen Input

Was this reply helpful? Yes No
newbie101 44 on at

Like (1)

Report
Copy link

Link copied!
Thanks for the solutions above. Here is a simpler solution.

For App, onStart = Set(varBlank, true)
For PenInput1 control,
ShowControls = false
onSelect = Set(varBlank, false)
Add a button on top of PenInput1 control, onSelect = Reset(PenInput1); Set(varBlank, true)

Was this reply helpful? Yes No