onclick时在repeater中查找div

Question

朋友们，我想更改单击按钮（asp.net）中的标签div的类，但该div位于转发器内，我怎样才能找到它？并换班级？ 实际上，我想更改引导列类。 希望我已经很好地表达了意思，谢谢大家。

Answer 1

当然，假设这个标记：

        <style>
            .myhighlight {
                background-color:lightblue;
                font:bold;
            }

        </style>


        <h3>Hotels</h3>
        <asp:Repeater ID="Repeater1" runat="server">

            <ItemTemplate>
                <asp:HiddenField ID="hPK" runat="server"
                    Value='<%# Eval("ID") %>'
                    />
                <div id="mystylediv" runat="server">

                    <div style="float: left; width: 30%">

                        <asp:Label ID="lblHotelName" runat="server"
                            Text='<%# Eval("HotelName") %>'
                            Font-Size="X-Large">
                        </asp:Label>
                        <br />
                        <asp:Label ID="lblDescription" runat="server"
                            Text='<%# Eval("Description") %>'>
                        </asp:Label>

                    </div>
                    <div style="float: left">
                        <asp:Button ID="cmdSel" runat="server"
                            Text="Select"
                            CssClass="btn"
                            OnClick="cmdSel_Click" />
                    </div>
                    <div style="clear: both">
                    </div>
                    <hr />

                </div>
            </ItemTemplate>

        </asp:Repeater>

因此，对于单行按钮单击，我们有以下代码：

Protected Sub cmdSel_Click(sender As Object, e As EventArgs)

    Dim btn As Button = sender
    Dim rRow As RepeaterItem = btn.NamingContainer

    Dim hPK As HiddenField = rRow.FindControl("hPK")
    Dim intPK As Integer = hPK.Value

    Session("RowPK") = intPK    ' save row selected database PK for later

    Dim MyDiv As HtmlControl = rRow.FindControl("mystylediv")
    MyDiv.Attributes.Add("class", "myhighlight")

End Sub

因此，当页面加载并单击该行的按钮时，我们会看到：