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<asp:Repeater ID="rptHotels" runat="server" OnItemDataBound="rptHotels_ItemDataBound">
                    <ItemTemplate>
                        <div class="hotel-box">
                            <div class="hotel-img">
                                <asp:HiddenField ID="hdnHotelCode" runat="server" Value='<%#Eval("HotelCode")%>' />
                                <a class="preview" href='<%#Eval("ImageURL_Text") %>' title='<%#Eval("HotelName")%>' target="_blank">
                                    <img src='<%#Eval("ImageURL_Text") %>' alt='<%#Eval("HotelName")%>' height="75px"
                                        width="100px" />
                                </a>
                            </div>
                            <div class="hotel_heeading_content">
                                <div class="hotel_heading">
                                    <h2>
                                        <asp:LinkButton ID="lnkHotelDetail" runat="server" OnClick="lnkHotelDetail_Click">                                      
                                            <%#Eval("HotelName")%>
                                            (
                                            <%#Eval("boardType")%>)
                                        </asp:LinkButton>
                                    </h2>
                                </div>
                                <div class="stars">
                                    <span class="stars">
                                        <%#Eval("StarRating")%></span>
                                </div>
                                <div class="hotel_text">
                                    <%#Eval("HotelAddress")%>,
                                    <%#Eval("Destination")%>
                                    ,<%#Eval("Country")%>
                                    <img src="images/ico_point2.png" alt="" id="mapicon" class="mapicon" />
                                    <input type="hidden" id="hdnLatitude" class="hdnLatitude" runat="server" value='<%#Eval("Latitude")%>' />
                                    <input type="hidden" id="hdnLongitude" class="hdnLongitude" runat="server" value='<%#Eval("Longitude")%>' />
                                    <input type="hidden" id="hdnInfoWindow" class="hdnInfoWindow" runat="server" />
                                </div>
                            </div>
                            <p>
                                <asp:Literal ID="ltDes" runat="server"></asp:Literal>
                            </p>
                            <p>
                                <a href="#">more info</a>
                            </p>
                            <div class="btn">

                                <asp:LinkButton ID="lnkPrice" runat="server"  Text=' <%#Eval("totalPrice")%>'  OnClick="lnkHotelDetail_Click" ></asp:LinkButton>


                            </div>
                            <div class="roominfo">
                                <asp:Repeater ID="rptRooms" runat="server">
                                    <HeaderTemplate>
                                        <div class="rooms">
                                            <div class="roominfoheader">
                                                <div class="roomheaderlbl">
                                                    Room Name</div>
                                                <div class="roomheaderlbl">
                                                    Total Room Rate</div>
                                                <div class="roomheaderlbl">
                                                    Book Now</div>
                                            </div>
                                        </div>
                                    </HeaderTemplate>
                                    <ItemTemplate>
                                        <div class="rooms">
                                            <div class="roominforow">
                                                <div class="roominforowlbl">
                                                    <asp:Label ID="lblRoomName" runat="server" Text='<%#Eval("roomCategory") %>'></asp:Label></div>
                                                <div class="roominforowlbl">
                                                    $
                                                    <asp:Label ID="Label1" runat="server" Text='<%#Eval("totalRoomRate") %>'></asp:Label></div>
                                                <div class="roominforowlbl">
                                                   <asp:LinkButton ID="lnkBookNow" runat="server"  Text="Book Now" OnClick="lnkBookNow_Click"></asp:LinkButton></div>
                                            </div>
                                        </div>
                                    </ItemTemplate>
                                </asp:Repeater>
                            </div>
                        </div>
                    </ItemTemplate>
                </asp:Repeater>

我有上面嵌套中继器的 HTML。我可以通过以下方法找到包含酒店代码的隐藏字段值

protected void lnkHotelDetail_Click(object sender, EventArgs e)
    {
        LinkButton btn = (LinkButton)sender;
        var item = (RepeaterItem)btn.NamingContainer;
        HiddenField hdnHotelCode = (HiddenField)item.FindControl("hdnHotelCode");



    }

但问题是现在我必须在单击嵌套中继器项目模板链接按钮时找到隐藏字段值。您可以检查 lnkBookNow 是rptRooms中继器内部的链接按钮。

protected void lnkBookNow_Click(object sender, EventArgs e)
    {
        LinkButton btn = (LinkButton)sender;
        var item = (RepeaterItem)btn.NamingContainer;
        HiddenField hdnHotelCode = (HiddenField)item.FindControl("hdnHotelCode");


    }

我尝试了类似的方法，但没有找到隐藏字段。

4

1 回答 1

1

这里的问题lnkBookNow.NamingContainer是rptRooms。这个控件显然不包含hdnHotelCode。

我认为你应该能够做到这一点：

protected void lnkBookNow_Click(object sender, EventArgs e)
{
    LinkButton btn = (LinkButton)sender;
    var item = (RepeaterItem)btn.NamingContainer.NamingContainer.NamingContainer;
    HiddenField hdnHotelCode = item.FindControl("hdnHotelCode") as HiddenField;
}

btn.NamingContainer是一个RepeaterItem在rptRooms. 那NamingContainer就是它Repeater本身。最后，NamingContainerofrptRooms是您要在其中找到您RepeaterItem的.rptHotelsHiddenField

Note my use of the as keyword instead of an explicit cast - this will protect you from NullReferenceExceptions if FindControl returns null. Of course, you should explicitly check that hdnHotelCode isn't null before you try to access it.

于 2013-01-27T16:40:39.727 回答