Set a List Item Value before Submit on a new form in PowerApps

Question

I'm using PowerApps to develop against a SharePoint List. I have a Variable that gets set and I want to set a field in a SharePoint list (within PowerApps) with the value of the variable before "SubmitForm()"

Can anyone help me with this?

Bismarck

Answer 1

You can see an article here with a nice tutorial: POWER APPS: SET A FIELD VALUE.

You can set the default value to the variable in the OnSave property under SharePointIntegration.

Example:

If(
    SharePointForm1.Mode=New,
    Set(varDefault, User().FullName)
    );
SubmitForm(SharePointForm1) 

Then in the Default property on the field control, put

If(IsBlank(varDefault),ThisItem.[FieldName],varDefault)

So every time a new item gets created, it takes the default value User().FullName when the form gets submitted, but it allows modification on the Edit Form.