AJAX :: Can't Get Update Panel To Work
Jan 9, 2011
I am building a simple Ajax control sample off one of the tutorials provided. Here's code:
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="asp" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "[URL]">
<html xmlns="[URL]">
<head runat="server">
<title>Untitled Page</title>
</head>
<body>
<form id="form1" runat="server">
<asp:ScriptManager ID="asm" runat="server" />
<div atomicselection="False">
Departure date: <asp:TextBox ID="tbDeparture" runat="server" />
Return date: <asp:TextBox ID="tbReturn" runat="server" />
<asp:Panel ID="pnlCalendar" runat="server">
<asp:UpdatePanel ID="up1" runat="server">
<ContentTemplate>
<asp:Calendar ID="c1" runat="server" />
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="tbDeparture" EventName="Load" />
<asp:AsyncPostBackTrigger ControlID="tbReturn" EventName="Load" />
</Triggers>
</asp:UpdatePanel>
</asp:Panel>
<asp:PopupControlExtender ID="pce1" runat="server"
TargetControlID="tbDeparture" PopupControlID="pnlCalendar" Position="Bottom" />
<asp:PopupControlExtender ID="pce2" runat="server"
TargetControlID="tbReturn" PopupControlID="pnlCalendar" Position="Bottom" />
</div>
</form>
</body>
</html>
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May 26, 2010
I don't understand why this update panel doesn't work right. It doesn't do a partial update. Enable partial page rendering is set to true but clicking the button causes a full page post back. The text of the label changes with the full post back. So, the event is firing and being handled but not with a partial post back. This is with in a content page with in a Master Page. Does anyone see what I've done wrong?
[Code]....
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Jul 29, 2010
if i use a combo box inside an update panel, the updatepanel's partial postback will not work. instead in a postback the page refreshes whole.
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Mar 23, 2010
i have a user control in which the cancel reset button clicks will call a javascript. this works fine when the user control is used normally...
if the usercontrol is put inside an update panel. the javascripts throw an error. "Object Excpected."
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Apr 29, 2010
I have a input of type file and when i try to do a Request.files when the input is wrapped in an update panel...it always returns an empty httpfilecollection. Why???
This is the codebehind: (At HttpContext.Current.Request.Files...its always 0 for the count.)
[code]....
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Sep 21, 2010
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[Code]....
This control works fine in a normal page, but once I put it inside an update panel it doesn't work. Is there a work around or simply I can't use JQuery inside update panel?
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Mar 15, 2013
i have gridview and export to excel button inside Update panel, the code i am using to export gridview data to excel is..
public void imgExcelExport_Click(object sender, ImageClickEventArgs e)
{
Response.ClearContent();
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[code]...
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Sep 5, 2010
We have two update panels on our webpage. Now first update panel is having button cancel. While second update panel is having a file upload control.
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Jun 5, 2010
I have a panel withitn an updatepanel with some buttons.
When one of the buttons is pressed, I'm updating a different update panel.
The problem is that when I click the button, nothing seems to happen.
If I click the button again , then I see the first update. If I click it again, I see the second update and so on..
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May 16, 2010
I have one update panel inside updatepanel i have one dropdownlist .When i change dropdownlist value so as per value button1 which is out of updatepanel not visible =true or false as per dropdownlist value.
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Jul 22, 2010
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Mar 24, 2011
I have a user control with a updatepanel, script manager and a asyncfileupload control.
<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="cc1" %>
<asp:ScriptManager ID="ScriptManager2" runat="server" ></asp:ScriptManager>
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate>
<cc1:AsyncFileUpload ID="AsyncFileUpload2" runat="server" />
<asp:LinkButton id="lbSubmitOrder" runat="server" title="Submit Order Request" class="btn_blue_dynamic_med"/>
</ContentTemplate>
</asp:UpdatePanel>
In my code behind:
Dim path As String = Server.MapPath("~/temp/test.tmp")
AsyncFileUpload2.SaveAs(path)
In my AsyncFileUpload2 object the filename is nothing. I can't seem to get a refernce to the file that is supposed to be uploaded.
-Nate
UPDATE
I've added
Private Sub AsyncFileUpload1_UploadedComplete(ByVal sender As Object, ByVal e As AjaxControlToolkit.AsyncFileUploadEventArgs) Handles AsyncFileUpload1.UploadedComplete
If e.state = AjaxControlToolkit.AsyncFileUploadState.Success Then
'....'
Else
showErrorMessage(e)
End If
End Sub
I can't hit a break point at the "if" statement after I choose a file. I guess there is something wrong on my page with how ajax is working? Not sure what it is though. I was displaying the ajax upload box via a radio button with a visible=true/false div. The answer told me that the control has to be there the page loads. I took away the div and everything worked! I will now do the show/hide through jquery (which I should have done in the first place).
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Aug 4, 2010
i have my master page with one update panel working like a banner, so when the timer do tick every 5 sec
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Now, the problem.
When i click one button to change the text and the banner change, the text returns to his default text. The update in master page is affecting the update on index page.
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Jan 2, 2010
I have a panel bar..each time I press panel bar item I display ascx control with in update panel..but it lakes update panel loading time lot..how I can decrease that loading time?
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Aug 30, 2010
I have an AJAX Modal Popup panel that contains a RadioButtonList, 2 labels and 2 DropDowns. I want to update the Labels and DropDowns when a radio button is selected. My attempt at this posts back which causes the ajax popup to disappear.
aspx called on image click:
<asp:Panel ID="pnlModalContainer" runat="server">
<asp:RadioButtonList ID="rblTest" runat="server" RepeatDirection="Horizontal" OnSelectedIndexChanged="rblTest_SelectedIndexChanged">
[code]...
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Apr 29, 2010
I am using .net 3.5 framework. I have a Tabcontainer inside that I have place asp.net fileupload control which is inside update panel. It's been known fact that fileupload control does not work under update panel unless we use Postback Triggers.
[Code]....
[Code]....
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Jun 8, 2010
I'm new to the world of Update Panels and i'm having a hard time figuring out how to use them properly.
I have a form that has a table(TABLE1)...and inside TABLE1 i am linking to a sql data source....at the bottom of the table i have a 'Add' button.
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Jul 17, 2010
i have a panel out of update panel.i have to make it hidden while navigating through different tabs,i tried these codes
Panel1.Attributes["style"] = "display: 'none';";
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Jun 21, 2010
I have a formview in Edit Mode, within an update Panel all and these arewithin a Modal Pop Up extender.On clicking Formview Update button, I want an image to appear within the pop up.I have put the image within another panel1 and runat server.For some reason the image is not showing on clicking update button.
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Jul 22, 2010
how to catch update panel's request start (before partial updation request is sent to server) and response receive (before update panel is updated) events.
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Feb 16, 2010
I have a user control, that has an update panel and update progress control in it.
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Either way - how do I make it so that the update progress only displays for the proper user control?
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Jul 14, 2010
I've exempted the irrelevant bits of code. Essentially, I am trying to change the URL of an image control inside of an update panel inside of a custom user control from a function called inside an update panel from my main page. Using UpdatePanel.Update() isn't working: I end up waiting for the next full page POST to occur before all the updates I make to CustomControl from buttons within the main page's update panel are visible. I verified that Update() was being called via the debugger: there are no issues in that department.
Here, you can see Custom Control and the Button declared. The button is in an update panel to avoid giving a full POST and causing the whole page to reload.
<cust:CustomControl runat="server" ID="CustomControl1">
<asp:UpdatePanel runat="server" ID="UpdatePanel1"> <ContentTemplate>
<asp:Button id="Button1" runat="server" OnClick="DoStuff" />
</ContentTemplate> </asp:UpdatePanel>
This control stores images within their own seperate update panels because rerendering the images is very slow (it requires processing arrays of millions of datapoints) and the user only ever needs to modify one image at a time. I'm using Image1 as an example.
[Code]....
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May 17, 2010
i am attempting to use javascript to update the chart, because how i have setup now causes the chart to just disappear. Here is the code i have now: I am calling the chart to page using: on default.aspx
[Code]....
Code on the dataURL_Infrasturcture_Capacity.aspx page:
[Code]....
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Mar 18, 2010
I am building a system for a school project. I currently have several Update Panels on the page that have many different controls on them. I also have a single Label control that i use to display messages to the user. I would like to have this label within an update panel also but there are literally hundreds of triggers that would require it to be updated and i dont want to type an absurd number of triggers for this one control.Is there a way for me to have this one panel update regardless of what happens?
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Jul 29, 2010
i am confused about the fact that if partial update of dropdowns is possible through Update Panel ,then why we should use asp.net ajax Cascading drop down extender ,that has made same task bit complex by making callback to web services ? what is difference between using update panel and cascading drop down extender ?
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