How to check if any textbox have entry

I have these 8 text boxes and I need to check in code if any have and entry. What is the best vb.net way to do this? I want ot check them all and if any have an entry then I want to do something.
            LastName.Text             FirstName.Text             ClientID.Text             Email.Text             Salutation.Text             Comment.Text             Address.Text             CompanyName.Text
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