[SeMiC]

Hello
i'm trying to get the total of a Specific column
i've tried this code

Dim Profit As Integer = 0
        Dim counter As Integer
        For counter = 0 To (DataGridView1.Rows.Count - 1)
            If Not DataGridView1.Rows(counter).Cells("Amount").Value Is Nothing Then
                If Not DataGridView1.Rows(counter).Cells("Amount").Value.ToString().Length = 0 Then
                    Profit += Integer.Parse(DataGridView1.Rows(counter).Cells("Amount").Value.ToString())
                End If
            End If
        Next
        TextBox6.Text = Profit

this code working well if the datagridview is empty
but if i'm using this code with the exist info then an error occurred
"input string is not in a correct format"
any ideas??

[SeMiC]

guys thank you
now it is working well
the profit has decimal numbers
so i have changed it to double and it is working well now