如何在vb.net中對大於0的datagridview rows.values進行求和

Question

我有這段代碼可以計算datagridview中的值之和columnrows;

Private Sub GetSUMofUnits() 
     Dim total As Integer 

    For Each row As DataGridViewRow In dgvSubjects.Rows 
     total += row.Cells(3).Value 
    Next 
    txtTotalUnits.Text = total 
    End Sub 

但是，我只想總和大於0的值;

例如，這是我的datagridview列（「單位」）;

Units 
     3 
     3 
     2 
    -3 
Total 8 

應該只計算在一個DataGridView細胞是大於0

我如何做到這一點的價值？非常感謝......

Answer 1

你可以這樣做只是這樣的：

Private Sub GetSUMofUnits() 
    Dim total As Integer 

    For Each row As DataGridViewRow In dgvSubjects.Rows 
     If row.Cells(3).Value > 0 
      total += row.Cells(3).Value 
     End If 
    Next 
    txtTotalUnits.Text = total 
End Sub 

希望它能幫助:)