Since emails commonly support rich text via HTML (the most reliable format for consistent rendering across clients), we can modify your function to wrap the "ISMS:" text in HTML bold tags. Here's the updated code:

Public Function CCC_GetISMS_Details( ByVal dbPwOHelperPwO As ISingleDbObject) As String
    Dim scriptErrorBase As String = "Script Error [CCC_GetISMS_Details]"
    Dim fkPwo As IForeignKey = dbPwOHelperPwO.GetFK("UID_PersonWantsOrg")
    Dim orderDetail2 As String = String.Empty
    Dim DetailStrg As New StringBuilder
    '存在关联的pwo记录
    If Not fkPwo.IsEmpty Then
        Dim pwo As ISingleDbObject = fkPwo.Create()
        '用户故事9672：从请求中获取正确的ISMS组并在审批邮件中发送
        orderDetail2 = pwo.ObjectWalker.GetValue("FK(CCC_UID_CSMGroup).GroupName")
        If Not String.IsNullOrEmpty(orderDetail2) Then
            ' Wrap "ISMS:" with <strong> tag for bold HTML rendering
            DetailStrg.AppendLine(String.Format("<strong>ISMS:</strong> {0}", orderDetail2))
        End If
    Else
        Throw New Exception(scriptErrorBase & " no related person want org record!")
    End If
    Return DetailStrg.ToString()
End Function

Quick Additional Tips: #

• If your email system uses Markdown instead of HTML, swap the HTML tag with Markdown bold syntax:

  DetailStrg.AppendLine(String.Format("**ISMS:** {0}", orderDetail2))
  

• Don’t forget to configure your email sender to use the correct body format:
  • For HTML: Set IsBodyHtml = True when using .NET's MailMessage class
  • For Markdown: Ensure your email service supports rendering Markdown content

内容的提问来源于stack exchange，提问作者Baji Sharian