I have an application that has multiple buttons. I am trying to keep the page from being reloaded (which interferes with other Controls) every time the button is clicked, so I have wrapped the main part of the code in <asp:UpdatePanel><ContentTemplate></ContentTemplate></asp:UpdatePanel>. I have already looked at multiple solutions for single buttons involving the use <Triggers><asp:AsyncPostBackTrigger>... just after the </ContentTemplate> but this does not resolve my issue. I am using AjaxControlToolkit (I have added using AjaxControlToolkit; to my C# file) as well as a ModalPopExtender which seem to affect the behavior of UpdatePanel, according to some solutions. Without posting the entire applications (its very long), here is the basic layout of the current code (aspx and C#) and what I have tried so far. Any suggestions on what I am doing wrong?
ASPX
<asp:UpdatePanel ID="UpdatePanel1" runat="server" UpdateMode="Conditional" ChildrenAsTriggers="true">
<ContentTemplate>
<div class="container" id="table_controls_section" style="margin-top: 20px; width: 100%;">
<div class="row" style="width: 100%;">
<table style="border-style:solid; border-color: darkblue; border-width:thin; border-bottom-width: 0px; width:100%;">
<tr>
<th style="text-align: center;">Requestor Info</th>
</tr>
<tr>
<td style="padding: 5px; text-align: center; width: 100%;">
<asp:Button ID="uxTicketHistoryButton" runat="server" Text="Show Ticket History" style="color: blue;" OnClick="uxTicketHistoryButton_Click"/>
<asp:Button ID="uxUseContactInfoButton" runat="server" Text="Use Contact Info" style="color: blue;" OnClick="uxUseContactInfoButton_Click" />
</td>
</tr>
</table>
</div>
</div>
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="uxUseContactInfoButton" />
<asp:AsyncPostBackTrigger ControlID="uxTicketHistoryButton" />
</Triggers>
</asp:UpdatePanel>
C#
using System;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using AjaxControlToolkit;
namespace BCA_TicketManagement
{
public partial class Summary : Page
{
....
protected void uxTicketHistoryButton_Click(object sender, EventArgs e)
{ ....
}
protected void uxUseContactInfoButton_Click(object sender, EventArgs e)
{ ....
}
}
}
Things I have tried so far:
1) Adding using AjaxControlToolkit; to C# code. It shows in my References as well.
2) Adding UpdateMode="Conditional" ChildrenAsTriggers="true" to my asp:UpdatePanel. Also tried changing ChildrenAsTriggers="false". No difference.
3) Trying to get UpdatePanel to work for a single button by adding <Triggers><asp:AsyncPostBackTrigger...> using the ControlID for that button. No change.
4) Adding xmlns:asp="#unknown" to <asp:AsyncPostBackTrigger...>. Throws error AsyncPostBackTrigger has no property 'xmlns:asp="#unknown"'
Note This page is loaded inside a <form> tag in the Master.siteusing <asp:ContentPlaceHolder ID="ContentPlaceHolder1" runat="server">.
You should provide your EventName to your Trigger as shown in the following example:
<Triggers>
<asp:AsyncPostBackTrigger ControlID="uxUseContactInfoButton" EventName="Click" />
<asp:AsyncPostBackTrigger ControlID="uxTicketHistoryButton" EventName="Click" />
</Triggers>
I hope that will resolve your problem.
Related
I have a updatepanel with a listview inside. This panel refreshes with an interval of 10 seconds, and listview source is updated and rebinded. My listview have some imagebuttons, and here comes the problem. When I click any of the listview buttons, I get a error:
"Invalid postback or callback argument." error.
I'm trying everything that I see on my serches, and no, I'll not set validation to false.
Here's a simplified template of my list.
<asp:UpdatePanel runat="server" ID="pnlRegistro" ClientIDMode="Static" OnLoad="pnlRegistro_Load">
<ContentTemplate>
<asp:ListView runat="server" ID="lvRegistro" OnPreRender="lvRegistro_PreRender" >
<LayoutTemplate>
<!-- Unread notification count -->
<span runat="server" id="spanRegistroCount" class="mws-dropdown-notif">
<asp:Label ID="lblRegistroCount" runat="server" Text="0"></asp:Label>
</span>
</LayoutTemplate>
<ItemTemplate>
<li class="<%# Convert.ToInt32(Eval("RegistroHorarioId"))==0?"read":"unread"%>">
<a>
<div style="width: 80%; float: left;">
<span class="message" <%#Eval("SpanColor")%>>
<%#Eval("Status")%>
</span>
</div>
<div style="float: right">
<asp:ImageButton runat="server" ID="btnRegistro" OnClick="btnRegistro_Click"/>
</div>
</a>
</li>
</ItemTemplate>
</asp:ListView>
</ContentTemplate>
</asp:UpdatePanel>
What can I do to fix this error and fire "btnRegistro_Click" event?
Update Panel is used for Updating Partial Page instead of doing full postback.
So,you have to add PostBackTrigger sync or async whatever you want because you are using update panel and for update panel events are defined in triggers to avoid full postback, so most probably you want asnc postback trigger.
add trigger for button event after content template end tag (</ContentTemplate>):
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="btnRegistro" EventName="Click" />
</Triggers>
</asp:UpdatePanel>
you should also read Understanding ASP.NET AJAX UpdatePanel Triggers
I am using an update panel inside which I have a treeview control. I wrote an async trigger with the same. I am getting an error which I couldn't solve as I am seeing it for the first time. I also got this error for the my control which was in update panel but that got solved as i used $ for separation of parent and child. Now i am having problem for finding event name. Following is my error
Could not find an event named 'PopulateNode' on associated control 'TreeView_Parent_Child' for the trigger in UpdatePanel '_updatepnlTreeview'.
My code is
<asp:Panel ID="Panel1" Visible="true" runat="server"
ScrollBars="Auto">
<div style="overflow: auto; height: 400px; width:230px; border-right: solid; border-right-color: gray">
<asp:UpdatePanel ID="_updatepnlTreeview" UpdateMode="Conditional" runat="server">
<ContentTemplate>
<asp:TreeView ID="TreeView_Parent_Child" EnableClientScript="true" align="left"
AutoGenerateDataBindings="true" LeafNodeStyle-ForeColor="Black" NodeStyle-ForeColor="Black"
PopulateNodesFromClient="true" runat="server" Font-Names="Arial"
OnTreeNodePopulate="PopulateNode"
HoverNodeStyle-BackColor="ActiveBorder" Font-Size="Small" ImageSet="Arrows" NodeStyle-HorizontalPadding="5px">
<HoverNodeStyle Font-Bold="true" BackColor="Beige" />
<Nodes>
</Nodes>
<NodeStyle ForeColor="Black" />
<LeafNodeStyle ForeColor="Black" />
</asp:TreeView>
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="TreeView_Parent_Child" EventName="PopulateNode" />
</Triggers>
</asp:UpdatePanel>
</div>
</asp:Panel>
The EventName needs to be changed to the name of the event instead of the method:
<Triggers>
<asp:AsyncPostBackTrigger ControlID="TreeView_Parent_Child" EventName="TreeNodePopulate" />
</Triggers>
i'm facing a problem, currently i'm having a update panel in my master page and in one of my child page i'm having a asp fileupload control.
My update Panel in master p[age:
<form id="form1" runat="server">
<asp:ScriptManager ID="ScriptManager1" runat="server">
</asp:ScriptManager>
<asp:updateprogress associatedupdatepanelid="UpdatePanel1"
id="updateProgress" runat="server">
<progresstemplate>
<div id="processMessage" style=" background-image:url('../../Styles/ajax-loader3.gif'); width:100px; height:100px; background-repeat:no-repeat; background-position:center;">
</div>
</progresstemplate>
</asp:updateprogress>
<asp:UpdatePanel ID="UpdatePanel1" runat="server" UpdateMode="Conditional">
<ContentTemplate>
..
</ContentTemplate>
</asp:UpdatePanel>
</form>
My Child page which needs a fileupload:
<div id="Annoucments" class="ContentDIV">
<h2 class="Tabheader">Annoucments</h2>
<p class="tabdescription">Here you will be able to upload announcements and pictures to be displayed in the login page, below is the current announcement click on update to save the changes that you have made.</p>
<table width = "100%">
<tr>
<td class="Tablabel">Annoucment title:</td> <td class="tableInput" align="left"><asp:TextBox ID="Announcement_TB" runat="server" CssClass="textboxTabs"></asp:TextBox></td>
<td class="Tablabel">Picture/Poster:</td> <td class="tableInput" align="left"><asp:FileUpload ID="Announcement_PIC" runat="server" CssClass="textboxTabsFiles"/></td>
</tr>
<tr>
<td class="Tablabel">Description:</td> <td class="tableInput" align="left"><asp:TextBox ID="Announcement_Desc" CssClass="textboxTabs" runat="server" Rows="3" TextMode="MultiLine"></asp:TextBox></td>
</tr>
<tr><td colspan="4" style="height:10px" id ="BLANK">
<asp:Label ID="Label1" runat="server" Text="Label"></asp:Label>
</td></tr>
<tr>
<td colspan="2" align="right"><input type="button" id="Announcement_Update" runat="server" value="Update" class="TabButton" onserverclick="ANNOUNCEMENT_UPDATE_Click" style=" font-size:smaller"/></td><td colspan="2"> <input type="button" ID="ANNOUNCEMENT_Cancel" runat="server" value="Cancel" class="TabButton" style=" font-size:smaller"/></td>
</tr>
</table>
</div>
*When i click the button Announcement_Update backend codes will be triggered to get my filename, the file name returned will always be "" found out while debugging.*
Put this code in child page, to pass PostBackTrigger for file upload.
protected void Page_Load(object sender, EventArgs e)
{
UpdatePanel updatePanel = Page.Master.FindControl("UpdatePanel1") as UpdatePanel;
UpdatePanelControlTrigger trigger = new PostBackTrigger();
trigger.ControlID = Announcement_Update.UniqueID;
updatePanel.Triggers.Add(trigger);
}
enjoy coding :)
You can't get filename inside that UpdatePanel
either remove that UpdatePanel from your code or use Asynchronous File Uploader,
Alternatively you could use Ajax File Uploading techniques this is a little tricky though.
Asp UpdatePanel not work inside a update panel duw to postback issue.
You can add trigger with the button assosiated with uploader like
<asp:UpdatePanel ID="UpdatePanel1" runat="server" UpdateMode="Conditional">
<ContentTemplate>
<asp:Button ID="Button1" runat="server" Text="Click" />
</ContentTemplate>
<Triggers>
<asp:PostBackTrigger ControlID="Button1" />
</Triggers>
</asp:UpdatePanel>
It works for me if you add the Trigger, but also make sure to edit to form tag to include:
<form runat="server" enctype="multipart/form-data">
I am working on asp.net and ajax using c#. I am trying to create a new user registration where i am poping a updatepanel with loading image when an user clicks on submit button. and also i need to insert the data into database at the same time. I use the following code,
<asp:UpdatePanel ID="updatepanel1" runat="server">
<ContentTemplate>
<asp:TextBox runat="server" ID="txtMI" Width="80px" Height="20px" CssClass="s1"> </asp:TextBox>
<asp:TextBox runat="server" ID="txtMI" Width="80px" Height="20px" CssClass="s1"></asp:TextBox>
<asp:TextBox runat="server" ID="txtMI" Width="80px" Height="20px" CssClass="s1"></asp:TextBox>
<asp:Dropdownlist ID="drpCountries" runat="server" Font-Bold="True" ForeColor="#FF3300"></asp:Dropdownlist>
<br />
<asp:Button ID="btnLoad" runat="server" onclick="btnLoad_Click" Text="submit" />
</ContentTemplate>
</asp:UpdatePanel>
<asp:UpdateProgress id="updateProgress" runat="server">
<ProgressTemplate>
<div style="position: fixed; text-align: center; height: 100%; width: 100%; top: 0; right: 0; left: 0; z-index: 9999999; background-color: #000000; opacity: 0.7;">
<asp:Image ID="imgUpdateProgress" runat="server" ImageUrl="~/avatarloading.gif" AlternateText="Loading ..." ToolTip="Loading ..." style="padding: 10px;position:fixed;top:25%;left:35%;" /><center><span style="color:White;font-weight:bolder;font-size:x-large;"><b>Loading...</b></span></center>
</div>
</ProgressTemplate>
</asp:UpdateProgress>
and in my code behind file like,
protected void btnLoad_Click(object sender,EventArgs e)
{
//INsert the records into database
}
At first when user clicks on submit i am able to pop loading panel with loading gif image. after successful insertion i need to show some message like registration success in place of image on loading panel. please guide me.
You can bind endRequest event of asp.net ajax to get control after ajax request completed.
<script language="javascript" type="text/javascript">
var prm = Sys.WebForms.PageRequestManager.getInstance();
prm.add_endRequest(endRequest);
function endRequest(sender, args) {
alert("After ajax request");
}
</script>
I'd create a panel which looks identical to the UpdateProgress markup (css classes) with a label in it. And on a successful operation you set the label text and switch the panels Visible property to true.
I'm working on employee web application project, in my application i used the 2 update panels,hidden fields and buttons. actually what I'm doing is while clicking button i need to get next employee info and save it this info. and here whenever I'll click on button which in update panel2, get employee info and I'll keep this employee id into hidden field which in update panel1 and while debugging hidden field value shows correct employee id but saving time its having old value. for this I'm facing lot problem please help me.
Thank you
Here is my code:
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<div>
<table>
<tr>
<td style="border-left: 1px solid #CDCDCD; border-right: 1px solid #CDCDCD; background-color: #E9E9E9">
<asp:ScriptManager ID="ScriptManager" runat="server" EnablePartialRendering="true"
AsyncPostBackTimeout="36000" />
<div>
<asp:Timer ID="Timer1" runat="server" OnTick="Timer1_Tick" Interval="60000">
</asp:Timer>
</div>
<div align="left" style="width: 715px; background: #E9E9E9;">
<div style="margin: 0px 30px 0px 45px; line-height: 140%; border-bottom: 1px solid #E0E2E0;
padding: 10px 0px 15px 0px">
<asp:UpdatePanel ID="upNextChapter" runat="server" UpdateMode="Conditional">
<ContentTemplate>
<table width="100%">
<tr>
<td align="right">
<asp:HiddenField ID="hfEmpId" runat="server" Value="0" />
** Employee Info **
</td>
</tr>
</table>
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="imgbtnNext" EventName="Click" />
</Triggers>
</asp:UpdatePanel>
</div>
</div>
<div align="right" style="padding-right: 30px;">
<div>
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate>
<asp:ImageButton ID="imgbtnNext" runat="server" OnClick="imgbtnNext_Click" />
</ContentTemplate>
</asp:UpdatePanel>
</div>
</div>
<div align="center">
</div>
</td>
</tr>
</table>
</div>
</form>
</body>
</html>
Code behind:
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
protected void imgbtnNext_Click(object sender, EventArgs e)
{
//Get Employee Info & store it in Hidden field value=Employee Id
//** Saving Employee Info using Hidden filed value **
}
}
I did a similar test on my machine, I really can't see why HiddenField is not updated. Its most likely your "Get Employee Info" is the root cause.
Also I want to correct your code a bit.
Your first UpdatePanel is doing unnecessary task, the tag UpdateMode="Conditional" is no need.
Also
<Triggers>
<asp:AsyncPostBackTrigger ControlID="imgbtnNext" EventName="Click" />
</Triggers>
this tag has no effect to anything because the button is not in the current UpdatePanel. By default everything in UpdatePanel is AsyncPostBackTrigger anyway, unless you have something to post back you can add asp:PostBackTrigger.