asp.net - Repeater 内的 Gridview

Question

我的页面上有一个转发器，链接到一个数据源，该数据源用团队填充转发器。我的目标是为每支球队创建一个标题，并为每支球队创建一个 GridView ，以修改每支球队的球员。

问题:gridview的数据源需要球队的PK才能从数据库中取出合适的球员。我怎样才能通过它们？

<asp:Repeater ID="Repeater1" runat="server" DataSourceID="odsTeam">
    <ItemTemplate>
        <h1>
            <%# Eval("name") %>
            with maximum of
            <%# Eval("st_max") %>
            players.</h1>

        <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataKeyNames="participant_id"
            DataSourceID="odsParticipant">
            <Columns>
                <asp:BoundField DataField="participant_id" HeaderText="participant_id" InsertVisible="False"
                    ReadOnly="True" SortExpression="participant_id" />
                <asp:BoundField DataField="participant_category_id" HeaderText="participant_category_id"
                    SortExpression="participant_category_id" />
                <asp:BoundField DataField="team_id" HeaderText="team_id" SortExpression="team_id" />
                <asp:BoundField DataField="room_id" HeaderText="room_id" SortExpression="room_id" />
                <asp:BoundField DataField="delegation_id" HeaderText="delegation_id" SortExpression="delegation_id" />
                <asp:BoundField DataField="first_name" HeaderText="first_name" SortExpression="first_name" />
                <asp:BoundField DataField="last_name" HeaderText="last_name" SortExpression="last_name" />
                <asp:BoundField DataField="date_of_birth" HeaderText="date_of_birth" SortExpression="date_of_birth" />
                <asp:BoundField DataField="gender" HeaderText="gender" SortExpression="gender" />
                <asp:BoundField DataField="identification_number" HeaderText="identification_number"
                    SortExpression="identification_number" />
                <asp:BoundField DataField="photo_url" HeaderText="photo_url" SortExpression="photo_url" />
                <asp:BoundField DataField="squad_number" HeaderText="squad_number" SortExpression="squad_number" />
                <asp:BoundField DataField="length" HeaderText="length" SortExpression="length" />
                <asp:BoundField DataField="weight" HeaderText="weight" SortExpression="weight" />
            </Columns>
        </asp:GridView>
    </ItemTemplate>
</asp:Repeater>
<asp:ObjectDataSource ID="odsTeam" runat="server" OldValuesParameterFormatString="original_{0}"
    OnSelecting="odsTeam_Selecting" SelectMethod="GetTeamsByDelegationID" TypeName="TeamBLL">
    <SelectParameters>
        <asp:Parameter Name="delegation_id" Type="Int32" />
    </SelectParameters>
</asp:ObjectDataSource>

<asp:ObjectDataSource ID="odsParticipant" runat="server" DeleteMethod="Delete" InsertMethod="Insert"
            OldValuesParameterFormatString="original_{0}" SelectMethod="GetParticipantsByTeamID"
            TypeName="ERASTableAdapters.tbl_participantTableAdapter" 
    UpdateMethod="Update" onselecting="odsParticipant_Selecting">
            <DeleteParameters>
                <asp:Parameter Name="Original_participant_id" Type="Int32" />
                <asp:Parameter Name="Original_participant_category_id" Type="String" />
                <asp:Parameter Name="Original_team_id" Type="Int32" />
                <asp:Parameter Name="Original_room_id" Type="Int32" />
                <asp:Parameter Name="Original_delegation_id" Type="Int32" />
                <asp:Parameter Name="Original_first_name" Type="String" />
                <asp:Parameter Name="Original_last_name" Type="String" />
                <asp:Parameter Name="Original_date_of_birth" Type="DateTime" />
                <asp:Parameter Name="Original_gender" Type="String" />
                <asp:Parameter Name="Original_identification_number" Type="String" />
                <asp:Parameter Name="Original_photo_url" Type="String" />
                <asp:Parameter Name="Original_squad_number" Type="Int32" />
                <asp:Parameter Name="Original_length" Type="Decimal" />
                <asp:Parameter Name="Original_weight" Type="Decimal" />
            </DeleteParameters>
            <UpdateParameters>
                <asp:Parameter Name="participant_category_id" Type="String" />
                <asp:Parameter Name="team_id" Type="Int32" />
                <asp:Parameter Name="room_id" Type="Int32" />
                <asp:Parameter Name="delegation_id" Type="Int32" />
                <asp:Parameter Name="first_name" Type="String" />
                <asp:Parameter Name="last_name" Type="String" />
                <asp:Parameter Name="date_of_birth" Type="DateTime" />
                <asp:Parameter Name="gender" Type="String" />
                <asp:Parameter Name="identification_number" Type="String" />
                <asp:Parameter Name="photo_url" Type="String" />
                <asp:Parameter Name="squad_number" Type="Int32" />
                <asp:Parameter Name="length" Type="Decimal" />
                <asp:Parameter Name="weight" Type="Decimal" />
                <asp:Parameter Name="Original_participant_id" Type="Int32" />
                <asp:Parameter Name="Original_participant_category_id" Type="String" />
                <asp:Parameter Name="Original_team_id" Type="Int32" />
                <asp:Parameter Name="Original_room_id" Type="Int32" />
                <asp:Parameter Name="Original_delegation_id" Type="Int32" />
                <asp:Parameter Name="Original_first_name" Type="String" />
                <asp:Parameter Name="Original_last_name" Type="String" />
                <asp:Parameter Name="Original_date_of_birth" Type="DateTime" />
                <asp:Parameter Name="Original_gender" Type="String" />
                <asp:Parameter Name="Original_identification_number" Type="String" />
                <asp:Parameter Name="Original_photo_url" Type="String" />
                <asp:Parameter Name="Original_squad_number" Type="Int32" />
                <asp:Parameter Name="Original_length" Type="Decimal" />
                <asp:Parameter Name="Original_weight" Type="Decimal" />
            </UpdateParameters>
            <SelectParameters>
                <asp:Parameter Name="team_id" Type="Int32" />
            </SelectParameters>
            <InsertParameters>
                <asp:Parameter Name="participant_category_id" Type="String" />
                <asp:Parameter Name="team_id" Type="Int32" />
                <asp:Parameter Name="room_id" Type="Int32" />
                <asp:Parameter Name="delegation_id" Type="Int32" />
                <asp:Parameter Name="first_name" Type="String" />
                <asp:Parameter Name="last_name" Type="String" />
                <asp:Parameter Name="date_of_birth" Type="DateTime" />
                <asp:Parameter Name="gender" Type="String" />
                <asp:Parameter Name="identification_number" Type="String" />
                <asp:Parameter Name="photo_url" Type="String" />
                <asp:Parameter Name="squad_number" Type="Int32" />
                <asp:Parameter Name="length" Type="Decimal" />
                <asp:Parameter Name="weight" Type="Decimal" />
            </InsertParameters>
        </asp:ObjectDataSource>

Answer 1

我知道我曾经使用过一种解决方法...

首先将你的隐藏字段放在你的转发器中并绑定(bind)你的 id，然后在你的 gridview 数据源中提供一个隐藏字段控件作为选择参数:

 <h1>
        <%# Eval("name") %>
        with maximum of
        <%# Eval("st_max") %>
        players.</h1>
<asp:HiddenField runat="server" ID="hdfId" Value='<%# Eval("TeamId") %>' />

    <asp:ObjectDataSource ID="odsTeam" runat="server" OldValuesParameterFormatString="original_{0}"
        OnSelecting="odsTeam_Selecting" SelectMethod="GetTeamsByDelegationID" TypeName="TeamBLL">
        <SelectParameters>
             <asp:ControlParameter PropertyName="value" Name="delegation_id" ControlID="hdfId" Type="Int32" />
        </SelectParameters>
    </asp:ObjectDataSource>