null fields insert Q

Hi,

I'm trying to insert records to my dbase from my web app. I can get all the data into the appropriate fields...as long as there's an entry. I was trying to do a simple if statement to catch fields left blank, I just can't remember what to do with it when I do!

Code:

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        dim nl as System.dbNull

        If (Name = "") Then
            Name = nl.ToString
            sql_addStaticValues += " ' " + Name + " ',"
        End If

---

I know you have to insert a dbNull instead or an empty value but am just unsure how to do it.
Thanks

Use..

Code:

---

  DBNull.Value

---

sorry...where?
It just keeps saying that it's not compatible with the string value