如何在vb.net中求解datagridview中某列的值之和

Dim sum As Integer = 0

For Each row As DataGridViewRow In DataGridView1.Rows
    ' 假设该列的索引为0
    sum += Convert.ToInt32(row.Cells(0).Value)
Next

Dim sum As Integer = 0

For Each row As DataGridViewRow In DataGridView1.Rows
    ' 假设该列的索引为0
    Dim value As String = row.Cells(0).Value.ToString()

    ' 检查字符串是否可以转换为整数
    Dim num As Integer
    If Integer.TryParse(value, num) Then
        sum += num
    End If
Next

Console.WriteLine("Sum: " & sum)