按钮 OnItemCommand 未在内部触发 asp:Repeater

Question

我有一个 Web 表单项目，其中包含以下按钮 asp:Repeater

    <asp:Repeater ID="rptBookingSlots" OnItemCommand="BookingSlotOnItemCommand" runat="server">
    <ItemTemplate>
    <tr>
    <td>
        <asp:Button ID="Button3" CssClass="Delete" CommandName="delete" CommandArgument="<%# (Container.DataItem as RemoveGroup).Id %>" runat="server" Text="Delete" OnClientClick="return confirm('Are you sure you want to permanently delete this record);" />
    </td>
    </tr>
    </ItemTemplate>
    </asp:Repeater>

但是当我 select 通过前端按钮时，它永远不会点击我在后面的代码中指定的方法

protected void BookingSlotOnItemCommand(object source, RepeaterCommandEventArgs e)
    {
       switch (e.CommandName)
       {
         case "delete": //do work to delete record
       }
    }

我有一个 page_preRender 方法，它总是在 post 包

    protected void Page_PreRender(object sender, EventArgs e)
    {
        if (IsPostBack && !_dataBound)
        {
            BindAllData();
        }
    }

谁能解释为什么当我附加到进程时我的 onItemCommand 方法不会被命中，我无法删除记录？

谢谢

Answer 1

我这样做的方法是在 page_load 而不是 pre_render 中加载数据。

我已经测试过了，按钮命令已进入

    protected void Page_Load(object sender, EventArgs e)
    {
        if (!Page.IsPostBack)
        {
            var myList = new List<string> {"foo", "bar"};
            rptBookingSlots.DataSource = myList;
            rptBookingSlots.DataBind();
        }
    }

按钮 OnItemCommand 未在内部触发 asp:Repeater

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