找不到与ASP计时器滴答事件ASP中继子控件 [英] Unable to find ASP Repeater child control from ASP Timer tick event
问题描述
查看图片如下:
场景
我有一个的转发控制轴承内径 RPT1 ,里面的ItemTemplate中,其中我有一个控制范围 ID为< STRONG>农行,这是目前显示的数字。我也有一个股票格式DD-MM-YYYY HH中继上述:MM:SS(27-05-2013 11时24分36秒),由ASP:定时器和ASP:UpdatePanel的
。
I have a repeater control bearing Id "rpt1" ,inside the ItemTemplate of which I have a span control whose Id is "abc", which is currently displaying a number. I also have a ticker above the repeater in format dd-MM-yyyy hh:mm:ss (27-05-2013 11:24:36), made up of ASP:Timer and ASP:UpdatePanel
.
要求
我需要的是,每当定时器我的第二部分达到00,我想从数字的变化幅度的内容,一些图像。
What i need is that whenever my second part of the timer reaches 00, I would like to change the content of span from number to some image.
code
ASPX:
<form id="form1" runat="server">
<asp:ScriptManager ID="scr" runat="server">
</asp:ScriptManager>
<asp:Timer ID="timer" runat="server" Interval="1000" OnTick="timer_Tick">
</asp:Timer>
<asp:UpdatePanel runat="server" ID="up1" UpdateMode="Always">
<ContentTemplate>
<asp:Label runat="server" ID="lblNum"></asp:Label>
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="timer" EventName="Tick" />
</Triggers>
</asp:UpdatePanel>
<asp:Repeater runat="server" ID="rpt1">
<ItemTemplate>
<table>
<tr>
<td>
<span id="abc" runat="server">
<%#Eval("Number") %></span>
</td>
</tr>
</table>
</ItemTemplate>
</asp:Repeater>
</form>
CS:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using System.Threading;
namespace WebTest
{
public partial class Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
BindList();
}
protected void timer_Tick(object sender, EventArgs e)
{
lblNum.Text = string.Format("{0:dd:MM:yyyy hh:mm:ss}",DateTime.Now);
if (DateTime.Now.Second == 30)
{
Thread t = new Thread(DisplayImages);
t.Start();
t.Suspend();
t.Join();
}
}
private void BindList()
{
var list = new List<Numbers>();
list.Add(new Numbers() { Number = 5 });
list.Add(new Numbers() { Number = 6 });
list.Add(new Numbers() { Number = 7 });
list.Add( new Numbers() { Number = 5 });
list.Add(new Numbers() { Number = 5 });
rpt1.DataSource = list;
rpt1.DataBind();
}
private void DisplayImages()
{
foreach (RepeaterItem item in rpt1.Items)
{
if (item.ItemType == ListItemType.Item || item.ItemType == ListItemType.AlternatingItem)
{
var checkBox = ((HtmlGenericControl)(item.FindControl("abc")));
checkBox.InnerHtml = "<img src='http://pra.aps.org/sites/pra.test.ridge.aps.org/themes/PRA/graphics/button_go.gif'/>";
}
}
}
}
public class Numbers
{
public int Number { get; set; }
}
}
早些时候,code正在执行的单个线程。现在,我试图保持分开线程,但无济于事。我想刷新页面,每次是主要问题。难道我只能刷新计时器的部分而不是整个页面。
Earlier the code was executing on single thread. Now, I tried keeping the threads apart but no avail. I think reloading page each time is main issue. Is it possible that I can only refresh the timer part not the entire page.
推荐答案
所有你需要做的是:
- 在ASPX code,移动中继到UpdatePanel.ContentTemplate,中庸之道下面lblNum。
- 在C#code,删除行t.Suspend(); 。
我希望这会帮助你。
code
ASPX:
<form id="form1" runat="server">
<asp:ScriptManager ID="scr" runat="server">
</asp:ScriptManager>
<asp:Timer ID="timer" runat="server" Interval="1000" OnTick="timer_Tick">
</asp:Timer>
<asp:UpdatePanel runat="server" ID="up1" UpdateMode="Always">
<ContentTemplate>
<asp:Label runat="server" ID="lblNum"></asp:Label>
<asp:Repeater runat="server" ID="rpt1">
<ItemTemplate>
<table>
<tr>
<td>
<span id="abc" runat="server">
<%#Eval("Number") %>
</span>
</td>
</tr>
</table>
</ItemTemplate>
</asp:Repeater>
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="timer" EventName="Tick" />
</Triggers>
</asp:UpdatePanel>
CS:
protected void timer_Tick(object sender, EventArgs e)
{
lblNum.Text = string.Format("{0:dd:MM:yyyy hh:mm:ss}", DateTime.Now);
if (DateTime.Now.Second == 30)
{
Thread t = new Thread(DisplayImages);
t.Start();
//t.Suspend();
t.Join();
}
}
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