如何让我的转发器的Itemcommand事件不进行整页回发?

时间:2013-07-14 17:18:21

标签: asp.net webforms

在我的用户控件中,我有以下标记:

<div id="pageEditsView" style="margin-left:540px">
    <asp:UpdatePanel runat="server">
        <Triggers>
            <asp:AsyncPostBackTrigger ControlID="PageEditList"/>
        </Triggers>
        <ContentTemplate>
            <asp:HiddenField runat="server" ID="CurrentPageId"/>
            <asp:Label runat="server" ID="EditDisplayLabel" Visible="False">Edits tied to this page:</asp:Label>
            <br/>
            <ul>
                <asp:Repeater runat="server" ID="PageEditList" OnItemCommand="PageEditList_ItemCommand">
                    <ItemTemplate>
                        <li>
                            <%# ((PageEdit)Container.DataItem).CachedName %> 
                            (<asp:LinkButton ID="LinkButton1" runat="server" Text="remove" CommandName="remove" CommandArgument="<%# ((PageEdit)Container.DataItem).Id %>" />)
                        </li>    
                    </ItemTemplate>
                </asp:Repeater>
            </ul>
        </ContentTemplate>
    </asp:UpdatePanel>
</div>

每当我点击删除链接按钮时,它都会执行整页回发,而不是仅仅更新此控件的面板。我的母版页有以下设置:

<asp:ScriptManager ID="ScriptManager1" runat="server" EnablePartialRendering="True" />

这个应用程序的其他部分(我继承了,并且写了这个的旧开发人员已经不在了)似乎可以进行部分页面更新。我做错了吗?

2 个答案:

答案 0 :(得分:10)

尝试注册linkbutton as async postback control,适当的位置是每个(异步/完整)回发时触发的ItemCreated事件:

protected void PageEditList_ItemCreated(Object Sender, RepeaterItemEventArgs e) 
{
     if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
     {
         ScriptManager scriptMan = ScriptManager.GetCurrent(this);
         LinkButton btn = e.Item.FindControl("LinkButton1") as LinkButton;
         if(btn != null)
         {
             btn.Click += LinkButton1_Click;
             scriptMan.RegisterAsyncPostBackControl(btn);
         }
     }
}

答案 1 :(得分:1)

在ContentTemplate

之后添加此内容
    <Triggers>
        <asp:AsyncPostBackTrigger ControlID="PageEditList" EventName="ItemCommand" />            
    </Triggers>