วิธีเขียนโค้ดแผ่นงาน excel เพื่อส่งอีเมลเมื่อตรงตามเงื่อนไขในคอลัมน์

Private Sub Worksheet_Change(ByVal Target As Range)

    Dim xRg As Range

    If Target.Cells.Count > 1 Then Exit Sub

    If Intersect(Range("c:c"), Target) Is Nothing Then Exit Sub

    If Target.Value = "done" Then

        Set xRg = Target.Offset(0, -1) 'Find email address

        Call Mail_small_Text_Outlook(xRg.Value)

    End If

    

End Sub



Sub Mail_small_Text_Outlook(ByVal xTo As String)

    Dim xOutApp As Object

    Dim xOutMail As Object

    Dim xMailBody As String

    Set xOutApp = CreateObject("Outlook.Application")

    Set xOutMail = xOutApp.CreateItem(0)

    xMailBody = "Hi there" & vbNewLine & vbNewLine & _

              "This is line 1" & vbNewLine & _

              "This is line 2"

    On Error Resume Next

    With xOutMail

        .To = xTo

        .CC = ""

        .BCC = ""

        .Subject = "send by cell value test"

        .Body = xMailBody

        .Display   'or use

'        .Send

    End With

    Set xOutMail = Nothing

    Set xOutApp = Nothing

End Sub