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am trying to calculate the values in rows in column 6 based on values of column 5. Bellow is the the code I am using

Can anyone help me getting it right?

I get a run time error about the string not formatted properly

Thanks in advance

```
Public Sub DataGridView1_CellValidated()
'Dim Result As Int32 = 0
'For Each r As DataGridViewRow In Me.DataGridView1.Rows
' Result = Result + r.Cells(5).Value * r.Cells(3).Value
' r.Cells(1).Value = Result
'Next
Dim result As Double = 0
Dim i As Integer = 0
For i = 0 To DataGridView1.Rows.Count - 1
If (DataGridView1.Rows(i).Cells(5).Value) = "" Then
MsgBox("nothing to do")
Else
Convert.ToDouble(DataGridView1.Rows(i).Cells(5).Value)
result = Convert.ToDouble(DataGridView1.Rows(i).Cells(6).Value)
'With row(i).Cells(5).Value
'Select Case row.Cells(5).Value
''Case Is >= 1.1
'Result = "#+"
If DataGridView1.Rows(i).Cells(5).Value >= 1.1 Then
result = "#+"
End If
' Case Is <= 0.9
'Result = "#-"
If DataGridView1.Rows(i).Cells(5).Value <= 0.9 Then
result = "#-"
End If
' Case Is = 0.9 And 1.1
'Result = "#eq"
If DataGridView1.Rows(i).Cells(5).Value >= 0.9 And _
DataGridView1.Rows(i).Cells(5).Value <= 1.1 Then
result = "#eq"
End If
' Case Else
'Result = "Error"
'End Select
'End With
End If
Next i
'Next
End Sub
```