Internally, PowerApps thinks the empty Weight is a Null value, which it thinks is an error, and it doesn’t even attempt to write this to SQL Server.

Below you can see an example of the use of the IfError function.

There are exceptions where it will return a Null today that we we will be fixing in the weeks ahead. We’re actively working to lift this limitation. Remember, the Visible property is just a boolean, so whatever formula is in there, just needs to evaluate to true or false. I found that once I enabled the feature I got the following options appear: IfError is a function that can help you catch problems with functions that you may run. But yeah i thought of trying that. These three steps need to be done on each card where you’d like to see a custom error message. First of all, here’s some information about the error message.

Here’s a related post that I wrote, about custom validation, too. Again your feedback is critical. It is more a statement of direction then a cool demo, although I do have one “crowd goes wild” moment below. This could happen if the TexInput doesn’t contain a number but some text. The description says we will be turning this feature on for all apps in September. In Excel, one can write IfError( , ) for which PowerApps had no equivalent. The Errors function returns an array of errors returned by datasource. This site uses Akismet to reduce spam. Being able to handle errors is great. PowerApps Text Input Pattern Validation. I changed one of my text fields into a number field. Change ). The value for a required column is missing from the record.

In my example below I’ve got a form connected to my testlist in SharePoint.

This feature is not experimental – we are done with it, it is here to stay, and you can you depend on it.

For example, IsBlank will return true for them. In fact, that’s exactly the change I made to my app, resulting in the following and we are finally back to where we started: Why didn’t we need do this for Weight? Ok, some adjustments might be needed to improve this feature, but at least it shows us a start of what might come one day.

Wouldn’t it be great if there was an OnError event at the app level to catch errors across the app, so that you can globally suppress the ones you don’t care about and still show a message for the ones you do.

As seen in the screenshot above, you’ll see Parent.Error in there already.

An attempt was made to change a column that the data source generates automatically. Check the Message column for more information.

There was a general validation issue detected, that did not fit one of the other kinds. Combined with IfError, this function can be used to report a problem to the user: IfError( Value( “not-a-number”), ShowError( “hey, that’s not a number” ) ). Note that you shouldn’t use this in a production app unless you don’t mind being disturbed while you are on holiday.