Hello,
I am getting NullReferenceException error in the Controls("ComboBox" & m).Text = "No" and probably i didn't define ComboBox and i don't know how to do it. Can you please help?

Code:
Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click

        Dim m As Integer

        For m = 35 To 77

            Controls("ComboBox" & m).Text = "No"

        Next m

End Sub