TextBox.Value Property Help

Private Sub Button_Run_Click()
    
    Dim Passcode As String
    
    Passcode = TextBox.Input_Passcode.Value
    
    Me.Filter = Passcode
    Me.FilterOn = True
    
End Sub

I have a MS Access Form object named Input_Passcode. This is a TextBox where a user may input their passcode and retrieve filtered content in their form.

On the same form is a Run button. When the user clicks the Run button, I want the button to take the value in Input_Passcode, and filter the form.

I don't know if TextBox.Value is the correct property to accomplish this but I'm not finding any real examples of the correct syntax.

Please help. Thanks.