How to use Asp.Net Ajax UpdatePanel inside an usercontrol
Question
I have a very simple user control like this:
<%@ Control Language="C#" AutoEventWireup="true" CodeBehind="WebUserControl1.ascx.cs" Inherits="tebimir.sections.WebUserControl1" %>
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate>
<asp:Button ID="Button1" runat="server" Text="Button" OnClick="Button1_Click" />
<asp:Label ID="Label1" runat="server" Text="Label"></asp:Label>
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="Button1" EventName="Click" />
</Triggers>
</asp:UpdatePanel>
And I have a page ajax.aspx like this:
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="ajax.aspx.cs" Inherits="tebimir.ajax" %>
<%@ Register Src="~/sections/WebUserControl1.ascx" TagPrefix="uc1" TagName="WebUserControl1" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:ScriptManager ID="ScriptManager1" runat="server"></asp:ScriptManager>
<uc1:WebUserControl1 runat="server" ID="WebUserControl1" />
</div>
</form>
</body>
</html>
And this is Button1 click code:
protected void Button1_Click(object sender, EventArgs e)
{
Label1.Text = DateTime.Now.ToString();
}
I want to update my label text to current date time without refreshing page but every time i click on button page is refreshed. why?
1 answers
solution1
0 2016-06-03 07:27:30
Do you have any other triggers in your user control because I don't see a closing tag for </asp:UpdatePanel> .I've created a brand new ASP.NET web forms web application and created the following user control and it works just fine(without refresh):
User control:
<%@ Control Language="C#" AutoEventWireup="true" CodeBehind="WebUserControl1.ascx.cs" Inherits="StackOverflowClean.WebUserControl1" %>
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate>
<asp:Button ID="Button1" runat="server" Text="Button" OnClick="Button1_Click" />
<asp:Label ID="Label1" runat="server" Text="Label"></asp:Label>
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="Button1" EventName="Click" />
</Triggers>
</asp:UpdatePanel>
Page that calls the user control:
<%@ Register Src="~/WebUserControl1.ascx" TagPrefix="uc1" TagName="WebUserControl1" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:ScriptManager ID="ScriptManager1" runat="server"></asp:ScriptManager>
<uc1:WebUserControl1 runat="server" id="WebUserControl1" />
</div>
</form>
</body>
</html>
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