SQL Server：列数据总和（+）结果显示在文本框vb.net中

Question

我需要帮助：我有两列（金额）和（1）； 我想对所有数据求和（金额）列，然后在文本框vb.net中显示结果

Dim cmd As New SqlCommand
cmd.Connection = cn
cmd.CommandText = "SELECT * FROM Table_8 WHERE ID='" & "1" & "'"

Dim adapter As New SqlDataAdapter(cmd)
Dim table As New DataTable()
adapter.Fill(table)

If table.Rows.Count() > 0 Then
    TextBox2.Text = table.Rows(0)(1).+ ToString()
End If