C# - CollapsiblePanelExtender Does Not React?
Nov 24, 2010
I'm using a CollapsiblePanelExtender with a checkbox. I would want to make the panel expand/collapse as the checkbox is checked and unchecked. This works but the problem I'm encountering is that when page loads the panel is not expanding or collapsing accordingly to the state which is loaded from the DB. In other words setting the Collapsed property of the CollapsiblePanelExtender int the page_load to true or false does not seem to affect it.This is what I have:
<asp:CheckBox runat="server" ID="ServiceCheckBox" AutoPostBack="true" Enabled="true"
OnCheckedChanged="CheckBoxCheckedStatusChanged" />
<asp:CollapsiblePanelExtender
[code]...
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Jun 9, 2010
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May 8, 2010
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Dec 25, 2010
On the code below, I am having a problem setting up a CPE. When I run the program it does not look like the tutorial. When it collapsis nothing can be seen and the collapased text is not visable anywhere. On the tutorial there is a bar and arrow. Is that something I have to create seperately? Also, what kind of buttons should I use to toggel the panel. I would appreciate it if someone could post code showing how this works.
[Code]....
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Jun 25, 2010
I used CollapsiblePanelExtender in a web form and would like to keep its state either collapsed or expanded by user. When user navigates away from the page and then comes back a little bit later, he still see the panel collapsed or extended. codes:formA.aspx:
<asp:Panel ID="panelPetInfoExtender" runat="server" Width="100%">
<span>Pet Information</span>
<asp:Image id="img1" runat="server" ImageUrl="collapse_blue.jpg" />
</asp:Panel>
<asp:Panel ID="panelPetInfo" runat="server">MY PET</asp:Panel>
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ImageControlID="img1" ExpandedImage="collapse_blue.jpg" CollapsedImage="expand_blue.jpg" />
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Sep 30, 2010
I use two different collapsiblepanelExtenders with similar colapsedControlID which is not a matter here. ince both of them working but with some misbehaviour, for example if the first one is open and I click wherever on it , the second one extends. also by clicking on the second one it collapses.That means that some how an event triggers and makes them collapse or extend.I have a kind of editing panel inside each extandedPanel which are used to update something on the page. the problem is that by clicking on eachtextbox or fileupload, the second panel collapses again. before any other action. So that I can not enter the textboxes. I can do that if I use tab button on keyboard. but that sucks really.
[Code]....
it might be because the second extender is inside the collapsible panel itself. but why it doesn't stay in extended state?
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Feb 2, 2011
I am using CollapsiblePanelExtender with following markup:
[Code]....
The expanded panel contains a table. This works fine in Firefox and IE. However, when the panel is expanded in Chrome, no content is shown or rendered in the expanded state.What could be going wrong here?
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Feb 2, 2010
I have 4 components in my website .
1.) A.aspx
2.) B.aspx
3.) c.ascx
4.) d.js
here is the sample code of my c.ascx
<form
id="form1"
runat="server">
[code]...
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Jan 14, 2011
have used a CollapsiblePanelExtender on my page.It works fine in IE but when I open it in chrome. It doesn't show contents inside CollapsiblePanelExtender. I am using ajax toolkit with asp.net 3.5
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Mar 2, 2010
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When I run the site, most ajax controls on my site disappear and I get following errors in firefox script error console:
Fehler: Sys.InvalidOperationException: Handler was not added through the Sys.UI.DomEvent.addHandler method.
Fehler: Sys.ArgumentException: Failed to find element "ucHaftpflicht.CheckBox"
Parameter name: CollapseControlID
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Jan 6, 2011
I have a Collapsiblepanelextender and a TabContainer with two tabs. the code works fine in FF and Chrome but fails in IE8. I am using VS2008 .Net 3.5 and the latest AjaxToolkit.
I am trying to control the collapsible behavior through tab clicking using javascript. here is the code to replicate my problem.
The aspx.cs code:
[Code]....
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May 21, 2010
I have several CollapsiblePanelExtenders in my formview (both EditTemplate and ItemTemplate). Everything works great, except that they always expand when I move from record to record. I'd like them to keep their previous state (collapsed or expanded). How can I do this with the Formview? Outside the Formview.
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Jul 15, 2010
I have this CollapsiblePanelExtender (below) the problem is that in firefox it gives a horizontal scroll bar under the control which has to expand.
[Code]....
Below is the generated HTML
[Code]....
If I remove the "overflow-y:hidden" from the generated div then the scroll bar goes away, which is what I want....
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Jan 3, 2011
I have a page which consists of a CollapsiblePanelExtender. To be specific, I have placed all my controls inside a panel and specified the TargetcontrolID as this panel and this is working perfect..Now, I just included a ModalPopupExtender control in the same page and specified the PopUpControlID as this same panel. Query1: Can CollapsiblePanelExtender and ModalPopupExtender work together?
I have also specified the CSS for the panel and for ModalPopupExtender. Have attached a part of the aspx page below.
[Code]....
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Apr 8, 2010
How can i Dynamically Add CollapsiblePanelExtender from code behind c# in asp.net
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Feb 2, 2011
I've read in a few places that this should close a collapsible panel:
To open: cpe1.Collapsed = true; cpe1.ClientState = "true";
To close: cpe1.Collapsed = false; cpe1.ClientState = "false";
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Dec 5, 2010
I am using this to display CollapsiblePanelExtender but it's not working ad I dont know why? there is no error and it workes when i set theCollapsed to True or False but not working when I run and want the user to click roCollapsed or Expand?
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/>
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Jul 1, 2010
I have a CollapsiblePanelExtender, and although the attribute Collapsed="true", the content panel is initially expanded.
When I click on the associated Header Panel, the Header changes (some text and an image are changed), and the content panel remains expanded. However when I click on the header again, the header changes (back to initial state) but the content panel momentarily collapses and then expands again.
Furthermore, I decided to copy Joe Steigner's demonstration word-for-word, and I get exactly the same result as before!!
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Mar 23, 2010
I have following code:
Main.aspx:
[Code]....
So here I just make my repeater and put a custom control in it.
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May 12, 2010
I am beginning the process of moving away from the AjaxControlToolkit and toward jQuery. What I want to do is have one function that duplicates the functionality of the CollapsiblePanelExtender. For a particular set of hyperlink and div, the code looks like this:
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[Code]....
I would then call this function from every HyperLink involved using OnClientClick.
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Jun 23, 2010
I have a page with two CollapsiblePanelExtender controls on it. The page is a multi-stage process which posts back to itself several times as the user steps through the process. All the page controls, includung the CollapsiblePanelExtenders are in an update panel and the page is derived from a master page.
When the page first loads, the CollapsiblePanelExtenders don't work properly - an open one will close on clicking, as epxected, but they only re-open intermittently and quickly reach a state where they won't re-open at all. However, once a user has initiated a postback by clicking on a form button, they work fine from there on in.
I can't work out what's causing this problem. Simply making the form post back to itself on load doesn't do anything, and neither does running the code that's initiated by the button click. I found - quite by accident - that inserting a StartupScript with an error (any error at all - just insert the the letter "a" in a script tag will do) into the page fixes the problem! But obviously that's not a satisfactory solution.
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Jan 20, 2010
I have used CollapsiblePanelExtender in my web page. whenever I load the page I can see the panels open for a second and then they all close. I want to start the page with them closed.
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