构建一个选择查询作为 gridview 数据源 asp.net答案

【问题标题】：build a select query as a gridview datasource asp.net构建一个选择查询作为 gridview 数据源 asp.net
【发布时间】：2014-04-04 18:06:42
【问题描述】：

我用一个asp.net gridview依赖控件来搜索日：-月：-年：

在数据库表中，我有一个 startdate 字段包含整个日期：

我试试这个查询：

SELECT        id, shift_id, name_of_shift, person_in_shift, starttime_in_shift, endtime_in_shift, table_id, startdate, enddate, point_id
FROM            sarcshifttable
WHERE         (id IN
                             (SELECT        MIN(id) AS Expr1
                               FROM            sarcshifttable AS sarcshifttable_1
                               GROUP BY table_id)) AND (DATEPART(year, startdate) + '' LIKE @year) AND (DATEPART(day, startdate) + '' LIKE @day) AND (DATEPART(month, startdate) + '' LIKE @month)

控件：

    <asp:TextBox ID="day_search" CssClass="textfield NjmeDine_Integer" Width="40px" runat="server"></asp:TextBox>

<asp:TextBox ID="month_search" CssClass="textfield NjmeDine_Integer" Width="40px" runat="server"></asp:TextBox>

<asp:TextBox ID="year_search" CssClass="textfield NjmeDine_Integer" Width="80px" runat="server"></asp:TextBox>

选择参数：

<SelectParameters>
                <asp:ControlParameter ControlID="year_search" DefaultValue="%" Name="year" PropertyName="Text" />
                <asp:ControlParameter ControlID="month_search" DefaultValue="%" Name="month" PropertyName="Text" />
                <asp:ControlParameter ControlID="day_search" DefaultValue="%" Name="day" PropertyName="Text" />
            </SelectParameters>

此格式的开始日期：2014-03-01

注意：当我在具有静态值的数据库中尝试它时，它可以完美地工作

SELECT        id, shift_id, name_of_shift, person_in_shift, starttime_in_shift, endtime_in_shift, table_id, startdate, enddate, point_id
FROM            sarcshifttable
WHERE        (DATEPART(month, startdate) + '' LIKE 03) AND (id IN
                             (SELECT        MIN(id) AS Expr1
                               FROM            sarcshifttable AS sarcshifttable_1
                               GROUP BY table_id)) AND (DATEPART(year, startdate) + '' LIKE 2014) AND (DATEPART(day, startdate) + '' LIKE 01) AND (DATEPART(month, startdate) + '' LIKE 03)

【问题讨论】：

标签： asp.net datasource

【解决方案1】：

答案是：

    SELECT        id, shift_id, name_of_shift, person_in_shift, starttime_in_shift, endtime_in_shift, 

SELECT        id, shift_id, name_of_shift, person_in_shift, starttime_in_shift, endtime_in_shift, table_id, startdate, enddate, point_id
FROM            sarcshifttable
WHERE        (DATEPART(month, startdate) + '' LIKE 03) AND (id IN
                             (SELECT        MIN(id) AS Expr1
                               FROM            sarcshifttable AS sarcshifttable_1
                               GROUP BY table_id)) AND ((DATEPART(year, startdate) + '' LIKE '%'+@year+'%') AND (DATEPART(day, startdate) + '' LIKE '%'+@day+'%') AND (DATEPART(month, startdate) + '' LIKE '%'+@month+'%')

【讨论】：