UpdatePanel中的控件未更新

编程入门行业动态更新时间:2024-10-24 22:29:15

本文介绍了UpdatePanel中的控件未更新的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！问题描述

我使用带有某些控件的UpdatePanel.当我单击按钮时，它会创建一个睡眠.这一次，我单击第二个按钮，其处理程序成功执行异步.但是其中一个标签不会更新.为什么?

< body > ; < 表单 id =" form1" runat =" 服务器" > < asp:ScriptManager ID =" ScriptManager1" runat =" 服务器" > < asp:UpdatePanel ChildrenAsTriggers =" true" ID =" UpdatePanel1 " runat =" 服务器" > < contenttemplate > < asp:Button 运行 =" 服务器" 文本 =" PostBackFirst " ID =" btnPostF" span> onclick =" btnPostF_Click" / > < asp:Button 运行 =" 服务器" 文本 =" PostBackSecond " ID =" btnPostS" span> onclick =" btnPostS_Click" / > < asp:Button 运行 =" 服务器" 文本 =" AbortPostBack " ID =" btnAbort" span> OnClientClick =" Sys.WebForms.PageRequestManager.getInstance().abortPostBack(); alert('回发已取消');" / > < asp:Label ID =" Label1" runat =" 服务器" 文本 =" " > < asp:Label ID =" Label2" runat =" 服务器" 文本 =" " > < /contenttemplate > < /form > < /body >

受保护的 void btnPostF_Click(对象发件人，EventArgs e) { System.Threading.Thread.Sleep( 4000 ); Label1.Text = " 回传1已完成" ; } 受保护的无效 btnPostS_Click(对象发件人，EventArgs e) { System.Threading.Thread.Sleep( 4000 ); Label2.Text = " 回传2已完成" ; }

解决方案

我认为两个标签的autopostback = true都可以正常工作. /> 事情表现正常.让我解释一下它是如何工作的- 假设您单击第一个按钮，则单击事件是单击事件，它休眠4秒钟.现在，如果您在睡眠状态下通过单击第三个按钮来中止帖子，则可以.然后它将不会继续进行该事件.如果等待4秒钟，则可以看到标签已更新为所需的值.与第二个按钮相同.

I use an UpdatePanel with some controls. When I click on the button, it creates a sleep. In this time I click on second button, its handlers execute async successfully. But one of the labels does not get updated. Why?

protected void btnPostF_Click(object sender, EventArgs e) { System.Threading.Thread.Sleep(4000); Label1.Text = "PostBack 1 Completed"; } protected void btnPostS_Click(object sender, EventArgs e) { System.Threading.Thread.Sleep(4000); Label2.Text = "PostBack 2 Completed"; }

解决方案

i think autopostback=true for the two labels will work fine..

Hi, Things are behaving correctly. Let me explain how it is working- Suppose you click on the first button, on click it comes to the click event and it sleeps for 4 seconds. Now while its in sleep if you abort the post back by clicking third button. Then it will not proceed with the event. If you wait for 4 second then you can see the label is updated with the desired value. Same with second button.

更多推荐

UpdatePanel中的控件未更新

本文发布于:2023-11-10 06:31:30，感谢您对本站的认可！

本文链接:https://www.elefans.com/category/jswz/34/1574612.html