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How to add a blank option on dropdown cascade?

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Posted on by Community Power Pla... Microsoft Employee

I have some options on a DropDown object, and they take the options from an Excel sheet. I want to also give users a blank field option, in case that field is optional. But I don't want to add the blank line inside my Excel. Is there a way to add in a blank option in dropdown?

Here: Family dropdown should have a blank option

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WarrenBelz 154,445 Most Valuable Professional on at

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HI @Anonymous ,
Do a Collection then add the rest of the code. I assume you are using a Distinct() function here? If so,
ClearCollect(colFamily,{Result:""}); Collect(colFamily,Distinct(YourListName,Family).Result
Your Items of the drop-down are then colFamily

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v-xida-msft Microsoft Employee on at

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Hi @Anonymous ,

Do you want to add a "Blank" option within your Dropdown boxes?

Based on the needs that you mentioned, I think the Concat function and Split function could achieve your needs without set up collections. I have made a test on my side, please consider take a try with the following workaround:

Set the Items property of the Dropdown control to following:

Sort( Split( Concat(Distinct(StudentInfo, 'Stu Name'), Result & ","), "," ), Result )

On your side, you may need to type the following formula within the Items property of the Family Dropdown box:

Sort( Split( Concat(Distinct('Your Excel Table', Family), Result & ","), "," ), Result )

Please take a try with above solution, hope it could solve your problem.

Best regards,

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