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    Page_Load:
            If Not Page.IsPostBack Then

                '--------------------------下面的是错误的 如果2006-10-31 那么-1月 就是 2006-9-31 所以是错误的
                Dim year, month, day As Integer
                day = Now.Day
                If Now.Month >= 2 Then
                    month = Now.Month - 1
                    year = Now.Year
                Else
                    month = 12
                    year = Now.Year - 1
                End If

                Dim dt As Date = New Date(year, month, day)

                Me.txt_BDate.Value = Format(dt, "yyyy\/MM\/dd")
                '---------------------------------------------------------------------------
                Me.txt_BDate.Value = Format(Now.AddMonth(-1),"yyyy\/MM\/dd")
                Me.txt_EDate.Value = Format(Now, "yyyy\/MM\/dd")
            End If

    '===============================================================

    Bind_Data:
            Dim str_BDate As String = Me.txt_BDate.Value
            Dim str_EDate As String = Me.txt_EDate.Value
            str_EDate = CDate(str_EDate).AddDays(1).ToString("yyyy/MM/dd")
    ......
    ......
    If str_BDate <> "" Then
                str_sql += " and Send_Time>='" + str_BDate + "' "
            End If
            If str_EDate <> "" Then
                str_sql += " and Send_Time<='" + str_EDate + "' "
            End If
    '===============================================================

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  • 原文地址:https://www.cnblogs.com/RobotTech/p/533664.html
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