Vb.net 错误：“收件人抄送”或“密件抄送”框中必须至少有一个姓名或通讯组列表

我试图在outook 2013中打开新邮件，数据库中填写密件抄送字段

如果我从datagridview中选择所有行，它将抛出异常错误“错误：在“收件人抄送”或“密件抄送”框中必须至少有一个姓名或通讯组列表”

密件抄送字段中添加的电子邮件数量是否有限制？ 这是我的密码

    Dim mail As Outlook.MailItem

    Dim AppOutlook As New Outlook.Application

    mail = AppOutlook.CreateItem(Outlook.OlItemType.olMailItem)
    mail.Subject = "Sample Message"
    mail.To = "abc@xyz.com"
    For Each row As DataGridViewRow In dgLoad.Rows
        'If row.Cells(0).Value = True Then
        If Me.dgLoad(0, 0).Value = Me.chkBox.Checked Then

            'End If
            Dim address As String = row.Cells(6).Value
            Dim recipBcc As Outlook.Recipient = mail.Recipients.Add(address)
            recipBcc.Type = CInt(Outlook.OlMailRecipientType.olBCC)
        End If
    Next

    mail.Display(True)

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请帮帮我

当

行.Cells（6）.Value

为空字符串时，您可能会收到该消息。如果是这种情况，请尝试添加一条if语句以跳过接下来的三条语句