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Notify function with LookUp

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Posted on by aaaaaaaDDD

Hello,

I want to Notify user if Lookup does not find a matching value in the Dataverse. So far I have managed to write below code on OnChange event of a txtSearch but I am not sure what is wrong. DelayOutput is set to true

If(
 !IsBlank(""),
 With(
 {
 wRecord: LookUp(
 'Owners',
 'Owner Email' = txtSearch.Value
 )
 }, 
 If(
 IsBlank(wRecord.'Managers-Email'),
 Notify(
 "No matching email found in the tool.",
 NotificationType.Error
 );
 Reset(txtSearch)
 )
 )
)

Categories:

Building Power Apps

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Rahman1005 109 on at

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Hi,
can you please refer article examples are covered, hope is will helpfull.
https://www.inogic.com/blog/2018/12/notify-functions-in-canvas-power-app/

Thanks,

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aaaaaaaDDD 34 on at

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How is this even related to my question?

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aaaaaaaDDD 34 on at

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Ah, I fixed by removing "!" on line 2
IsBlank(""),

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iAm_ManCat 18,228 Most Valuable Professional on at

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Hi,

At present this code is not running at all due to your first condition within the If statement, as it will always evaluate to false:

You should be able to change this to refer to the length of the search text so that it only does the lookup when the search text input has a value in it:

If( Len(txtSearch.Text)>0, With( { wRecord: LookUp( 'Owners', 'Owner Email' = txtSearch.Text ) }, If( IsBlank(wRecord.'Managers-Email'), Notify( "No matching email found in the tool.", NotificationType.Error ); Reset(txtSearch) ) ) )

Also it looks like you are referring to txtSearch.Value but I think this should actually be txtSearch.Text if it's an actual text input control.

Try modifying the above code to meet your needs,

Cheers,

Sancho

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aaaaaaaDDD 34 on at

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Hello,
Yes, I realized mistake in the formula. I am using PowerApps for Teams and hence I think textbox does not have "Text" property.
I was expecting the "OnChange" event to be fired when the focus is moved out of the text input however it is getting fired every time a text is added in the textbox. Any thoughts?

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