按周查询报表

   
 按周查询报表,获取开始和截止时间

aspx页面

   &nbsp;&nbsp;按周查询：&nbsp;<asp:DropDownList ID="drpYear2" runat="server" AutoPostBack="True" OnSelectedIndexChanged="drpYear2_SelectedIndexChanged"></asp:DropDownList> <asp:DropDownList ID="drpWeek" runat="server"></asp:DropDownList>                                 
                            <asp:Button ID="btnAdvancedSearchConfirm2" runat="server" OnClick="btnAdvancedSearchConfirm2_Click"
                                Text="【查询】"  CssClass="submit"/>

 //获取开始和截止时间
 DateTime beginTime ;
        DateTime endTime ;
        string[] arr = StringHelper.SplitString(drpWeek.SelectedValue, "#");
        beginTime = DataConverter.StrToDateTime(arr[0], DateTime.Now);
        endTime = DataConverter.StrToDateTime(arr[1], DateTime.Now);

    private void drpYear_DataBind()
    {
        for (int min = DateTime.Now.Year - 10; min <= DateTime.Now.Year; min++)
        {
            ListItem item = new ListItem(min.ToString());
            drpYear.Items.Add(item);
            drpYear2.Items.Add(item);
        }
        drpYear.SelectedValue = DateTime.Now.Year.ToString();
        drpYear2.SelectedValue = DateTime.Now.Year.ToString();
    }

    private void drpWeek_DataBind()
    {
        drpWeek.Items.Clear();
        DateTime beginTime = DataConverter.StrToDateTime(string.Format("{0}-1-1", drpYear2.SelectedValue), DateTime.Now.Date);
        DateTime endTime = beginTime.AddYears(1).AddSeconds(-1).Date;
        int dayOfWeek = (int) beginTime.DayOfWeek;
        if(dayOfWeek == 0)
            dayOfWeek = 7;
        beginTime = beginTime.AddDays((8 - dayOfWeek) % 7);

        dayOfWeek = (int)endTime.DayOfWeek;
        if (dayOfWeek == 0)
            dayOfWeek = 7;
        endTime = endTime.AddDays(7 - dayOfWeek);

        for (DateTime i = beginTime; i <= endTime;)
        {
            DateTime endOfWeek = i.Date.AddDays(6);
            ListItem item = new ListItem(string.Format("{0}至{1}", i.Date.ToString("MM-dd"), endOfWeek.Date.ToString("MM-dd")), string.Format("{0}#{1}", i.Date.ToString("yyyy-MM-dd"), endOfWeek.Date.ToString("yyyy-MM-dd")));
            drpWeek.Items.Add(item);
            i = endOfWeek.Date.AddDays(1);
        }
    }

    protected void drpYear2_SelectedIndexChanged(object sender, EventArgs e)
    {
        drpWeek_DataBind();
    }