title: Vb.net How to remove duplicates from an Array?
body: <pre><code>Dim ItemList As New ArrayList()
  
  For i = 0 To dgExtract.Items.Count - 1
          gRow = dgExtract.Items(i)
          chk = gRow.FindControl("chkSelect")
          If chk.Checked Then
              sEmail = gRow.Cells(7).Text
              dim number as string = Regex.Replace(sEmail,"[^0-9]","")
              if number.length = 11 then
                  ItemList.Add(number)
              end if
          end if              
  Next
  </code></pre>
  
  <p>I build up the ItemList array with the above code. How do i remove any duplicates in this array?</p>