title: check which item is selected?
body: <p>I try to check which data is selected in a <code>DataGridViewComboBoxCell</code></p>
  
  <pre><code>Dim status As Double
      For x As Integer = 0 To ATCGRID.Rows.Count - 1
          If ATCGRID.Rows(x).Cells(2).Value = "Full" Then
              status = 1
          ElseIf ATCGRID.Rows(x).Cells(2).Value = "Empty" Then
              status = 0
          ElseIf ATCGRID.Rows(x).Cells(2).Value = "Half" Then
              status = 0.5
          End If
          MessageBox.Show(status)
      Next x
  </code></pre>
  
  <p>But Its getting error</p>
  
  <pre><code>Conversion from string "Full" to type "Double" is not valid.
  </code></pre>
  
  <p>How can I solve this?</p>