How to set default value for combo box with user name

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Posted on by Voltes

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Hi guys,

How to give default value to a ComboBox with current user name ?

I tried to put in property Default or DefaultSelectedItem but returned error. I'm using User().Fullname

In Items property I already have this : Office365Users.SearchUser({searchTerm:MyComboBoxName.SearchText}), this is so that when we type in my combo box, it is automatically filter the list. But I need to be filled in by current user name at first.

I found this thread : https://powerusers.microsoft.com/t5/Building-Power-Apps/Default-value-of-combo-box/m-p/298441#M85966

but to me it is hard to understand why ?

Thanks,

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Building Power Apps

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mdevaney 29,989 Moderator on at

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@Voltes

You should be able to just copy and paste this code into the DefaultSelectedItems property of your ComboBox and have it work.

If(Form1.Mode=FormMode.New, { DisplayName:User().FullName, Claims:"i:0#.f|membership|" & Lower(User().Email), Department:"", Email:User().Email, JobTitle:"", Picture:"" }, ThisItem.YOURFIELDNAME )

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Voltes 265 on at

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Hi @mdevaney

Yes, it works. Much appreciated if you can tell me just a little, what is the meaning of that code ?
I've put the 1st line only actually, since I thought I only need the name in that box. Will that make the code invalid or missed its purpose ?

So, it is like this:
Thanks again.
V

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mdevaney 29,989 Moderator on at

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@Voltes
Yes of course. This is the most important section of my code.

{ DisplayName:User().FullName, Claims:"i:0#.f|membership|" & Lower(User().Email), Department:"", Email:User().Email, JobTitle:"", Picture:"" }

A person field in SharePoint is known as a complex column type. This means it stores more than one piece of data about a person. In fact it stores several!

DisplayName: Office 365 display name

Claims: a unique identifier that represents a specific user

Email: the user's email etc.

Picture: Office 365 user photo

etc, etc, etc.

So when we want to display a person in a new Power Apps form we must build the person object from scratch. That's why we need all of that code inside the { } brackets.

I would suggest you copy my code entirely. At the very least you must have these fields: Claims, DisplayName, Email.

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Voltes 265 on at

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Hi @mdevaney ,

Many thanks for the explanation. It really help me to understand more on this.

Thanks.

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Community Power Pla... on at

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You are the cat @mdevaney ! Your blog is super good too man! Thank you for all the work you put in to bring out the best in this toolset.

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Golly 127 on at

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Just an FYI that square brackets are needed in this code in addition to the curly ones (at least for me).
If(Form1.Mode=FormMode.New, [{ DisplayName:User().FullName, Claims:"i:0#.f|membership|" & Lower(User().Email), Department:"", Email:User().Email, JobTitle:"", Picture:"" }], [ThisItem.YOURFIELDNAME] )

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