PeoplePicker Validation before submitting in PowerApps

Question

How can I prompt an error message for a comboBox peoplePicker if a user manually inputs a name without selecting a choice from the dropdown menu?

Answer 1

How to prompt an error message for a comboBox people picker in PowerApps?

To prompt an error message for a comboBox peoplePicker in PowerApps if a user manually inputs a name without selecting a choice from the dropdown menu do the following:

1. Set the Text property of the error message Label to the error message that you want to show t the user for example "You must choose Name from the dropdown"
2. In the visible property of the error message Label set it to this formula

     If(
    IsBlank(DataCardValue47.Selected),
    If(
        Len(DataCardValue47.SearchText) > 0,
        true,false
    ),
    false)

user manually inputs a name without selecting a choice from the dropdown menu, the error message will appear

Comments

can i did it on the onchange property?

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yes you can but set the true or false to a variable and set the visible property to error message to this variable