Check if string its empty

[langsem]

Hello I have a barcode scanner that scans a qr code. Then it extracts some values. 

I then have a label that holds the value. I want to make a function that says "If the field its empty assign variable1 if the fields its not empty do First(Match(BarcodeScanner1.Value;"FORSIKRING:(.+)";Contains).SubMatches).Value)

How can i perform this ? I tried with If(IsBlank(Label2.Text);"variable1";First(Match(BarcodeScanner1.Value;"FORSIKRING:(.+)";Contains).SubMatches).Value)

But it gives error

[langsem]

Hmm its close, but only god "variable1" each time now :S

[v-xiaochen-msft · Accepted solution]

Hi @langsem ,

You could try this code:

If(IsBlank(Trim(First(Match(BarcodeScanner1.Value;"FORSIKRING:(.+)";Contains).SubMatches).Value))),"variable 1",First(Match(BarcodeScanner1.Value;"FORSIKRING:(.+)";Contains).SubMatches).Value))

// Trim function can delete all spaces in a text string, except for a single space between words.

Best Regards,

Wearsky

[langsem]

THank you so much for help !! YOu rock!