Question

<asp:UpdatePanel ID="up" runat="server">
        <ContentTemplate>
            <table>
                <!-- Main Table start -->
                <asp:ToolkitScriptManager ID="ToolkitScriptManager1" runat="server"></asp:ToolkitScriptManager>
                <tr>
                    <td class="auto-style1">
                        <!-- Left Table Start-->
                        <table cellspacing="0" cellpadding="0" border="0" style="width: 95%; margin-top:20px">
                            <tbody>
                                <tr>
                                    <!--Center Side Start -->
                                    <td align="center" class="style1">
                                        <div class="smallbox" style="margin: 0px">

                                            <table style="margin-left: 20px; width: 278px;                         
                                              height: 95px;" cellspacing="0" cellpadding="0"
                                                align="center" border="0">
                                                <tbody>
                                                    <tr>
                                                        <td class="formtext" width="37%"                
                                                          height="27">
                                                            From:
                                                        </td>
                                                        <td width="63%" align="left"       
                                                              height="27">
                                                            <asp:DropDownList 
                                                             ID="DropDownList1"               
                                                             runat="server">  
                                                            </asp:DropDownList>
                                                        </td>
                                                    </tr>
                                                    <tr>
                                                        <td class="formtext" width="37%" height="27">
                                                            To:
                                                        </td>
                                                        <td width="63%" align="left" height="27">

                                                            <asp:DropDownList ID="DropDownList2" runat="server"></asp:DropDownList> 

                                                        </td>
                                                    </tr>
                                                    <tr>
                                                        <td class="formtext" width="37%" height="27">
                                                            Depart on
                                                        </td>
                                                        <td width="63%" align="left" height="27">
                                                            <asp:TextBox ID="DepartureDate" runat="server"></asp:TextBox>
                                                            <asp:CalendarExtender ID="CalendarExtender1" runat="server" TargetControlID="DepartureDate"></asp:CalendarExtender>
                                                        </td>
                                                    </tr>
                                                    <tr>
                                                        <td class="formtext" height="27%" width="37%">
                                                            Rent
                                                        </td>
                                                        <td align="left" height="37" width="63%">
                                                            <asp:Literal ID="litrent1" runat="server" />
                                                        </td>
                                                    </tr>
                                                </tbody>
                                            </table>
                                        </div>
                                    </td>
</table>
            <!-- Main Table End -->
        </ContentTemplate>
    </asp:UpdatePanel>

这是我的c＃代码......

private void bindGrid()
       {
string lidhja= "SERVER=localhost\\SqlExpress;Database=Projekti2;" + "Integrated Security=true;";
           SqlConnection cnnDB = new SqlConnection(lidhja);
           string query = "SELECT a.RouteID,a.Departure,a.Price FROM ListBus a INNER JOIN Route b ON a.RouteID=b.RouteID WHERE a.Departure=@DepartureDate AND b.StartPlace=@StartPlace AND b.DestPlace=@DestPlace";




using (SqlDataAdapter sda = new SqlDataAdapter(query, cnnDB))
{

 sda.SelectCommand.Parameters.AddWithValue("@DepartureDate", DepartureDate.Text);
               sda.SelectCommand.Parameters.AddWithValue("@StartPlace", DropDownList1.SelectedValue);
               sda.SelectCommand.Parameters.AddWithValue("@DestPlace", DropDownList2.SelectedValue);
               DataSet ds = new DataSet();
               sda.Fill(ds, "ListBus");
               GridView1.DataSource = ds.Tables["ListBus"].DefaultView;
               GridView1.DataBind();
}

如何看待我想在TextBox和DropDownList1以及DropDownList2中使用文本从我的SQL表中获取一些数据，但这种方式不起作用。当我改变我的c＃代码（见下文）时，它可以工作，但这不是我想要的：

string query = "SELECT a.RouteID,a.Departure,a.Price FROM ListBus a INNER JOIN Route b ON a.RouteID=b.RouteID WHERE a.Departure='2013-12-15' AND b.StartPlace='Austria' AND b.DestPlace='Kosovo';

帮我解决一下！

ASP.NET C＃中的动态数据输入

0 个答案: