ajax更新面板控制问题

Question

我有一个更新 grid-view 的更新面板，grid-view 连接到 mySql 数据源，更新面板的触发器是一个计时器，每 1 秒滴答一次。但问题是当计时器打勾时，整个页面都会回传。任何的想法 ？<asp:ScriptManager ID="ScriptManager1" OnLoad="Timer1_Tick" runat="server" />            <asp:UpdatePanel ID="UpdatePanel1" UpdateMode="Conditional" ChildrenAsTriggers="true" runat="server">                <ContentTemplate>                    <asp:Timer ID="Timer1" runat="server" Interval="1000" OnTick="Timer1_Tick" Enabled="False">                    </asp:Timer>                    <asp:GridView ID="GridView3" runat="server" AutoGenerateColumns="False" DataKeyNames="ID" DataSourceID="SqlDataSource3">                        <Columns>                            <asp:BoundField DataField="ID" HeaderText="ID" InsertVisible="False" ReadOnly="True" SortExpression="ID" />                            <asp:BoundField DataField="Sensor1" HeaderText="Sensor1" SortExpression="Sensor1" />                            <asp:BoundField DataField="Sensor2" HeaderText="Sensor2" SortExpression="Sensor2" />                            <asp:BoundField DataField="Sensor3" HeaderText="Sensor3" SortExpression="Sensor3" />                            <asp:BoundField DataField="Sensor4" HeaderText="Sensor4" SortExpression="Sensor4" />                            <asp:BoundField DataField="Time" HeaderText="Time" SortExpression="Time" />                        </Columns>                    </asp:GridView>                    <asp:SqlDataSource ID="SqlDataSource3" runat="server" ConnectionString="<%$ ConnectionStrings:MyDatabaseConnectionString %>" SelectCommand="SELECT * FROM [Customer]" OnSelecting="SqlDataSource3_Selecting"></asp:SqlDataSource>                </ContentTemplate>                <Triggers>                    <asp:PostBackTrigger ControlID="Timer1" />                </Triggers>            </asp:UpdatePanel>计时器背后的代码是： protected void Timer1_Tick(object sender, EventArgs e)    {        GridView3.DataBind();    }

Answer 1

我像下面的代码一样更改了触发器标签，它起作用了:)

            <Triggers>
                <asp:AsyncPostBackTrigger ControlID="Timer1" />
            </Triggers>