Ajax UpdatePanel Child Control's Visibility
Jan 17, 2011
I want to change the visibility of two asp.net image controls (runat="server") at the beginning and the end of the method call duration. I mean, I want the first image displayed and second one remains hidden until the last line of my method, which in turn, the second image becomes visible and the first one hides. I've put the area of the triggering control in updatepanel and have declared triggers of the updatepanel; But when I press the control (which is a button), the image at the end of the process is displayed correctly and on time but the one which should be displayed in the first line of the method is not displayed. I've configured my updatepanel to use conditional update mode and have used these lines for my intention:
imgLoading.Visible = true;
..
rest of the process
..
if (true)
{
imgLoading.Visible = false;
imgSuccess.Visible = true;
}
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Similar Messages:
Mar 1, 2010
I'm attempting to set the visibility my UpdatePanel to true upon a button click event (as shown below). It should be rather straightforward but unfortunately it's not working at all. Any idea why it's going wrong?
//Markup
<asp:UpdatePanel ID="UpdatePanelSearchSubject" runat="server" UpdateMode="Always" Visible="false">
<ContentTemplate>
<p>
</p>
<p>
<asp:TextBox ID="findSubject" runat="server" Width="248px"></asp:TextBox>
</p>
<asp:RadioButton ID="peopleSearch" runat="server" Checked="True"
Text="People" GroupName="searchSubject" />
<asp:RadioButton ID="groupSearch" runat="server" Text="Group"
GroupName="searchSubject" />
<br />
<asp:Button ID="btnGetGroups" runat="server" Text="Search"
OnClick="btnGetGroups_Click" BackColor="#CCFFCC" />
<br />
<br />
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="btnSearchSubject" />
</Triggers>
</asp:UpdatePanel>
//code behind
protected void btnSearchSubject_Click(object sender, EventArgs e)
{
UpdatePanelSearchSubject.Visible = true;
}
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Aug 18, 2010
How to disable tab or visibility control if some condition is not satisfy.
I want it that control in .asmx page, because I have some Cascaded combo under two tab.
If the first combo is not populate in any of tab then that tab will not visible or disable to user.
As I am populating the cascaded combo box using web methods so it is easy for me to declare that fuction there.
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Jul 26, 2010
so here is what i've got:
-master page with updatepanel - within the update panel is a contentplaceholder
-aspx page that uses the master page which contains aysncfileupload,a button,an image,and a label
what i'm trying to accomplish:
when a user uploads a file using the asyncfileupload it gets saved to a public folder.-this works as it should when the user presses the button the file is processed and should display the image and label (which were previously not visible)-this does not what happens is that the file gets processed but the image and label stay hidden,and i cannot figure out why.here's the aspx page and code snippets:
[Code]...
the file gets uploaded,and it even hits the two lines which should make the label and image visible but they stay hidden.i know that if you try to change controls with the afuExcelUsers_UploadedComplete event,they will not happen since the asyncfileupload only does a partial postback. this is why that event (afuExcelUsers_UploadedComplete) only saves the file on the server.then pressing the button triggers a different event and should do a "postback" and have control over the label and images visibility and other properties.
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Apr 21, 2010
If I set up a repeater that has LinkButton controls, an UpdatePanel works great. If I add child elements to the LinkButton,such as SPAN, the UpdatePanel stops working as expected. If you click on the area of the LinkButton everything still works, but if you click on the area of the SPAN inside of the LinkButton, you get a full PostBack.I've tried setting ChildrenAsTriggers to true and a few hundred other things. Nothing seems to work. I think the UpdatePanel sees that the "click" event happened on the SPAN and doesn't know to capture it for an async postback.
[code]...
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Aug 17, 2010
I am trying to trying to setup an updatepanel to update every X seconds, the problem is I don't want the control to actually refresh unless there is new data. So I currently have a child updatepanel in a parent UpdatePanel, the child updatepanel gets refreshed by a timer. But I can't seem to find a way to trigger the parent panel to update. Again, only when certain conditions(data changed) are met.
Sample Code:
[code]....
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Mar 11, 2010
I am currently using a asp.net 2.0 with visual studio 2005.
I am trying to build a web application using ajax.
but when I drag the ajax updatepanel on asp.net page it is not resizable,so how should i put other controls on it?
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Aug 20, 2010
Iam using masterpage concept and iam using ajax updatepanel in master page , i want o use trigger in child page. to partial postback of dropdownlist.
my questions is how to use trigger and updatepanel in child page called frmcustomer.aspxand my master page name is master.asxpx
below is my child page
<%@ Page Language="C#" AutoEventWireup="true" MasterPageFile ="~/Test.master" CodeFile="frmMscustomer.aspx.cs" Inherits="frmMscustomer" %>
[code]....
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Aug 24, 2010
iam using master page and i am using update panel in content pages (child pages)
my questions is that can use updatepanel in every child page or master page only.
i have senario , in a page i have file upload concept ,updatepanel is not support that fileupload.
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Jun 15, 2010
I have a page with 2 update panels
UpdatePanel1 contains a gridview1 and a standard panel, pnlForms. gridview1 has a linkbutton which is processed in the gridview1_rowcommand
UpdatePanel2 has gridview2.
There is also a Submit button that isn't in either UpdatePanel but may be a candidate to go into its own UpdatePanel. The Submit button is a trigger for both update panels
The behavior I would like is:
1-Initially, all visible except pnlForms and Submit button 2- When linkbutton in UpdatePanel1 gridview1 is clicked, pnlForms and Submit button become visible. 3. When Submit button is clicked, both gridviews should be refreshed, and PnlForms and the Submit button should both become not visible. I believe I may have to put the Submit button in its own UpdatePanel3 but am not sure how to proceed.
In my present code, everything works as desired except Submit button (not presently in any Update panel) is always visible. Assuming Submit button is initialized to not visible, how do I get it to appear when I click the link button in gridview1 and to disappear when it is clicked?
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Jan 4, 2010
I need to be able to save the data of all the pages in the tab control simultaneously. How can I access the child controls from the tab container.
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Jan 7, 2010
What scriptmanager control and
updatepanel control role if we add this control to web page
and when we use triggers with update panel control.
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Nov 23, 2010
I have a nested child and parent UpdatePanel. The problem is, when the child UpdatePanel is refreshed/posted, the UpdateProgress in parent fires up. How can I prevent this? The structure is like this:
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate>
<asp:UpdateProgress ID="UpdateProgress1" runat="server" AssociatedUpdatePanelID="UpdatePanel1">
<ProgressTemplate></ProgressTemplate>
</asp:UpdateProgress>
<asp:UpdateProgress ID="UpdateProgress2" runat="server" AssociatedUpdatePanelID="UpdatePanel1">
<ProgressTemplate></ProgressTemplate>
</asp:UpdateProgress>
<asp:UpdatePanel ID="UpdatePanel2" runat="server" ChildrenAsTriggers="false" UpdateMode="Conditional">
<ContentTemplate>
<asp:UpdateProgress ID="UpdateProgress3" runat="server" AssociatedUpdatePanelID="UpdatePanel2">
<ProgressTemplate></ProgressTemplate>
</asp:UpdateProgress>
</ContentTemplate>
</asp:UpdatePanel>
</ContentTemplate>
</asp:UpdatePanel>
When UpdatePanel2 is posted, UpdateProgress3 is not displayed but UpdateProgress1 and UpdateProgress2 are. What should I do?
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Dec 27, 2010
form id="form1" runat="server">
<asp:ToolkitScriptManager ID="ToolkitScriptManager1" runat="server" EnablePartialRendering="true">
<Services><asp:ServiceReference Path="~/adminService.asmx" />
</Services>
[code]....
WebuserControl holds a button that trigger a database operation. As soon as I click on button inside webusercontrol the whole control disappears, leaving behind a blank modalpopupcontrol. Remember there is no postback happening as modalpopup has updatepanel as its first child. Everything is inside this updatepanel.
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Jan 19, 2010
I get following error when I click on the button.I am Using IE 7.0 and Updatepanel control for AJAX in the aspx page (Not in master Page).This error goes After I clear cache.
"Sys.WebForms.PageRequestManagerParserErrorException: The message received from the server could not be parsed. Common causes for this error are when the response is modified by calls to Response.Write(), response filters, HttpModules, or server trace is enabled. Details: Error parsing near ' <!DOCTYPE html PUB'."
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Jan 24, 2010
what is the uses f Triggers in UpdatePanel control
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Apr 23, 2010
I cannot determine why this is happening, but I have narrowed it down to the javascript in one of the controls in an updatepanel.
ASP.NET 2.0 aspx structure:
A formview contains a large updatepanel. The updatepanel contains all the controls on the page. Only three controls are autopostback=true: two dropdowns and a checkbox.
The last three controls in the updatepanel are textboxes. Their autopostback=false. Each textbox has an anchor whose javascript launches a pop-up calendar window. The pop-up calendar selection populates the corresponding textbox. No problems there.
The bug happens whenever I fill in all three dates at once (I launch the calendar three times and select a date each time), and then I click Save. The form's save action fails because the code can no longer get to the controls in the formview. The formview.controls.count is zero.
It works if I fill in any two of the three dates *or* I fill in all three dates by typing the values into the textboxes (bypassing the pop-up calendar). I can fill them in random order, and any one or two are fine, but all three at once triggers the error.
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Jan 30, 2010
I have an UpdatePanel with PlaceHolder inside.
I have a linkbutton "One more", which have to create a new FileUpload control when user clicks it.
[Code]....
ASPX-code:
[Code]....
how should I make an ability to upload non-defined number of photos?
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Mar 5, 2011
On my MasterPage I use UpdatePanel to update whole ContentPlaceHolder. Example of code you can find below. All content pages work fine with this MasterPage except one. This page is very complex. I noticed that when I disable UpdatePanel in my MasterPage this problematic page works fine. Question: is it possible to exclude something from UpdatePanel - in my example whole page but only this one?
<asp:UpdatePanel
ID="UpdatePanel2"
runat="server">
<ContentTemplate>
<asp:ContentPlaceHolder
id="MainContent"
runat="server">
</asp:ContentPlaceHolder>
</ContentTemplate>
</asp:UpdatePanel>
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Mar 25, 2010
My popup panel is disappearing everytime the timer ticks in an updatepanel.How can i solve this problem please friends.
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Apr 14, 2010
This sounds weird, but I would like to NOT update a control that's within an update panel. Is this possible? basically the way facebook works, facebook controls are rendered on a "get" command. but I have controls within the same update panel that cause AJAX postbacks. When the postback's happen, I lose my facebook server-side controls. I am wondering if I can "unregister" a control from an update panel? Or do I just have to redesign that page.
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Sep 14, 2010
I have a custom control created to autofill the box as typed in. Its working great. But if I put the control inside an Update Panel, it works for the full postback but if partial postback happens (because of the update panel), it does not work.
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May 28, 2010
I started a new project using VS2010. I have a menu control connected with an XML datasource inside UpdatePanel, Menu control works fine, problem is the styling. using a StaticHoverStyle Css works only after the page reloads, when I click a menu entry, the entry is selected but StaticHoverStyle does not reflects the menu items anymore (of course when I hover the items) Same behave with both Net versions 3.5 and 4. When I remove the UpdatePanel the StaticHoverStyle comes back to life ( post back occurs ).
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Aug 5, 2010
I should probably say I love these forums, I've been viewing for some time and have found loads of valuable information. I'm having a problem with my project, I have an updatepanel containing several items (Two Daypilot Schedulers and a Literal Control). I have set it to conditional and have it update whenever bookings are added/modified in the schedulers. This all works perfectly! I then have a literal control which contains div items with onmouseover= parameters. The control basically contains a list of pending booking requests. On Page_Load I call a method which populates the list...which works fine.
However, whenever I call the UpdatePanel.Update() method (say, when a booking is added), the schedulers update but the literal control does not. I have gone through the debugger and found that the LiteralControl.Text property is correctly set to the new updated list just before calling the Update() method. So basically it all works perfectly apart from the literal control not updating along with the schedulers in the UpdatePanel.
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Dec 22, 2010
I'm new in developing and i'm in trouble with update a UpdatePanel inside a User Control from a Repeater inside another User Control.
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