asp.net定时刷新局部信息
浏览数：22 /
时间：2015年06月09日
主要用到：
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<asp:ScriptManager ID="ScriptManager1"
runat="server"
/> <asp:Timer ID="Timer1"
OnTick="Timer1_Tick"
runat="server"
Interval="10000"
/> <asp:UpdatePanel ID="StockPricePanel"
runat="server"
UpdateMode="Conditional"> <Triggers> <asp:AsyncPostBackTrigger ControlID="Timer1"
/> </Triggers> <ContentTemplate> Stock price is
<asp:Label id="StockPrice"
runat="server"></asp:Label><BR /> as
of <asp:Label id="TimeOfPrice"
runat="server"></asp:Label> <br /> </ContentTemplate> </asp:UpdatePanel> |
后台：
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protected
void Timer1_Tick(object
sender, EventArgs e) { StockPrice.Text = GetStockPrice(); TimeOfPrice.Text = DateTime.Now.ToLongTimeString(); } |
我主要在LIstView或者GridView中定时刷新数据：
<table class="TableStyle">
<tr>
<td>
地块：<asp:DropDownList ID="ddl_Ground" runat="server" AutoPostBack="true">
</asp:DropDownList>
</td>
</tr>
</table>
<asp:ScriptManager ID="ScriptManager1" runat="server" />
<asp:Timer ID="Timer1" OnTick="Timer1_Tick" runat="server" Interval="20000" />
<asp:UpdatePanel ID="StockPricePanel" runat="server" UpdateMode="Conditional">
<Triggers>
<asp:AsyncPostBackTrigger ControlID="Timer1" />
</Triggers>
<ContentTemplate>
<asp:ListView ID="QiFang_Data_List" runat="server" DataSourceID="QiFang_Datasource">
<LayoutTemplate>
<table id="UserData" class="TableSub">
<tr>
<th scope="col">
<asp:Label ID="Label1" runat="server" Text="所属地块" />
</th>
<th scope="col">
<asp:Label ID="LinkButton1" runat="server" Text="户型" />
</th>
<th scope="col">
<asp:Label ID="LinkButton3" runat="server" Text="已选房源" />
</th>
<th scope="col">
<asp:Label ID="LinkButton2" runat="server" Text="房源总数" />
</th>
</tr>
<asp:PlaceHolder ID="itemPlaceholder" runat="server"></asp:PlaceHolder>
</table>
</LayoutTemplate>
<ItemTemplate>
<tr>
<td>
<%#Eval("G_NAME")%>
</td>
<td>
<%#Eval("ROOM_SHAPE")%>
</td>
<td>
<%#Eval("YiXuanCount")%>
</td>
<td>
<%#Eval("QiFangCount")%>
</td>
</tr>
</ItemTemplate>
<EmptyItemTemplate>
没有数据
</EmptyItemTemplate>
</asp:ListView>
<div class="PageSize">
<%--分页控件--%>
<asp:DataPager ID="DataPager1" runat="server" PagedControlID="QiFang_Data_List" EnableViewState="false"
PageSize="12">
<Fields>
<asp:TemplatePagerField>
<PagerTemplate>
共<%=DataCount%>条记录， 当前第<asp:Label runat="server" ID="CurrentPageLabel" Text="<%# Container.TotalRowCount>0 ? (Container.StartRowIndex / Container.PageSize) + 1 : 0 %>" />/<asp:Label
runat="server" ID="TotalPagesLabel" Text="<%# Math.Ceiling ((double)Container.TotalRowCount / Container.PageSize) %>" />页，
</PagerTemplate>
</asp:TemplatePagerField>
<asp:NextPreviousPagerField ButtonType="Image" ButtonCssClass="PageCss" ShowFirstPageButton="true"
ShowPreviousPageButton="true" ShowLastPageButton="false" ShowNextPageButton="false"
FirstPageText="首页" PreviousPageText="上页" FirstPageImageUrl="~/Images/page1.png"
PreviousPageImageUrl="~/Images/page3.png" />
<asp:NumericPagerField />
<asp:NextPreviousPagerField ButtonType="Image" ShowNextPageButton="true" ButtonCssClass="PageCss"
ShowLastPageButton="true" ShowFirstPageButton="false" ShowPreviousPageButton="false"
LastPageText="末页" LastPageImageUrl="~/Images/page2.png" NextPageImageUrl="~/Images/page4.png"
NextPageText="下页" />
</Fields>
</asp:DataPager>
</div>
<asp:ObjectDataSource ID="QiFang_Datasource" runat="server" SelectMethod="Get_QiFang_Data"
TypeName="BQ.BLL.FangYuan.QiFangManager" MaximumRowsParameterName="pageSize"
StartRowIndexParameterName="startIndex" EnablePaging="True" SelectCountMethod="Get_Count"
EnableViewState="false" UpdateMethod="Update_QiFang_Room">
<SelectParameters>
<asp:ControlParameter ControlID="ddl_Ground" Name="GR_ID" Type="Int64" PropertyName="SelectedValue" />
</SelectParameters>
</asp:ObjectDataSource>
</ContentTemplate>
</asp:UpdatePanel>
后台在定时事件中进行数据重新绑定：
protected void Timer1_Tick(object sender, EventArgs e)
{
QiFang_Data_List.DataBind();
}
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