Question

我想通过lbltest（RadGrid ItemCommand）事件更新标签（frmRptControlledUsers）。标签在RapControlledUsers之外，但RadGrid在其中。

Html标记

<telerik:RadAjaxLoadingPanel ID="RALPPermissions" runat="server" EnableSkinTransparency="true" BackgroundTransparency="30">
</telerik:RadAjaxLoadingPanel>
<telerik:RadAjaxPanel ID="RapControlledUsers" runat="server" LoadingPanelID="RALPPermissions">
    <telerik:RadGrid ID="frmRptControlledUsers" RenderMode="Lightweight" runat="server">
        <mastertableview>
            <columns>
                <telerik:gridtemplatecolumn>
                    <itemtemplate>
                        <asp:LinkButton ID="LnkDelete" runat="server" CommandName="Delete" CommandArgument='<%# Eval("ID") %>'>
                            Delete
                        </asp:LinkButton>
                    </itemtemplate>
                </telerik:gridtemplatecolumn>
            </columns>
        </mastertableview>
    </telerik:RadGrid>
</telerik:RadAjaxPanel>
<asp:Label ID="lbltest" runat="server"></asp:Label>

代码背后

private void RptControlledUsers_ItemCommand(object sender, GridCommandEventArgs e)
{
    string Command = e.CommandName.ToString();
    switch (Command.ToLower())
    {
        case "delete":
            {
                this.lbltest.Text="this is updated";
                break;
            }
    }
}

如果有人可以解释这个问题的解决方案，那将非常有用。

Answer 1

你可以在这里考虑几个选项。

使用RadAjaxManager控件代替RadAjaxPanel

<telerik:RadAjaxManagerProxy ID="AjaxManagerProxy1" runat="server">
<AjaxSettings>
    <telerik:AjaxSetting AjaxControlID="frmRptControlledUsers">
        <UpdatedControls>
            <telerik:AjaxUpdatedControl ControlID="lbltest" />
        </UpdatedControls>
    </telerik:AjaxSetting>
</AjaxSettings>

使用ScriptManager手动注册控件。 ScriptManager.RegisterDataItem()。请查看这些链接以获取更多详细信息

https://msdn.microsoft.com/en-us/library/bb301423(v=vs.110).aspx#Examples

https://abhijitjana.net/2010/06/14/how-to-update-controls-which-are-outside-of-updatepanel-during-partial-page-rendering/

在RadAjaxPanel之外更新标签

1 个答案: