Validating data in a user form

Is there a way to validate data typed into the user form? I tried validating the actual cells that the data adds to, and that didn't work.
For instance, I have a drop-down list now, but the way it is I can either choose from the list, or type in anything I want. What if I only want values from the list to be allowed? Is there a way to do such a thing?

Hello Kim_J,

Here is the code to restrict the user's input to the list in your ComboBox. The example uses a UserForm, a ComboBox, and a CommandButton. You can change the names and the loading of the ComboBox to match your needs. The code disables the user from using the Close Box on the title bar. You must close your form using a Command Button.

Private Sub CommandButton1_Click()
 'CLOSE THE FORM
  Unload Me
  
End Sub

Private Sub UserForm_Activate()
 'VALIDATE THE ENTRY
   
   'The user's entry must match what is in the list
   'before can be passed to another object on the form.
    ComboBox1.MatchRequired = True
  
   'Load some data into the ComboBox
    ComboBox1.List = Array("Apples", "Grapes", "Kiwi", "Oranges", "Persimmons")
    
End Sub

Private Sub UserForm_QueryClose(Cancel As Integer, CloseMode As Integer)
 'DISABLE THE CLOSE BOX
  If CloseMode = 0 Then Cancel = True
  
End Sub

Sincerely,
Leith Ross

Thank you so much for the reply. That helps a lot.

How would I validate data that wasn't from a list? Like if it needed to be a date, or a certain text length?

Thanks.