Ajax Accordion Control Example or how to use ajax accordion control in asp.net or working with Ajax Accordion Control

By: Suresh Dasari Apr 16, 2011

Introduction:

Here I will explain how to use the Ajax Accordion control in asp.net.

Description:

In Previous post I explained clearly how to show the progressbar during check the username availability using asp.net .Now I will explain how to use the Accordion control in asp.net. Accordion control is used to bind multiple panes and display one pane at a time. This control is like having multiple collapsiblepanels where only one can be opened at a time. To use Accordion control in our code we need to design code in certain format like below

<ajax:Accordion ID="Accordion1" HeaderCssClass="accordionHeader" HeaderSelectedCssClass="accordionHeaderSelected" ContentCssClass="accordionContent" runat="server" SelectedIndex="0" FadeTransitions="true" SuppressHeaderPostbacks="true" TransitionDuration="250" FramesPerSecond="40" RequireOpenedPane="false" AutoSize="None">

<Panes>

<ajax:AccordionPane ID="AccPan1" runat="server">

</ajax:AccordionPane>

<ajax:AccordionPane ID="AccPan2" runat="server">

</ajax:AccordionPane>

</Panes>

</ajax:Accordion>

If we observe above code we declared so many properties for Accordion control here I will explain what each property is

SelectedIndex - This property is used to set initial AccordionPane to be visible.

HeaderCssClass – This CSS class property is used to apply style to Header of all AccordionPanes.

HeaderSelectedCssClass – This CSS class is used to change the color of selected AccordionPane.

ContentCssClass – This CSS class is used to update the AccordionPane.

FadeTransitions – This Property is used to set True to use the fading transition effect, false for standard transitions.

TransitionDuration – This Property is used to set the Number of milliseconds to animate the transitions

FramesPerSecond - This Property is used to set the Number of frames per second used in the transition animations.

RequireOpenedPane – This Property is used to Prevent closing the currently opened pane when its header is clicked (which ensures one pane is always open). The default value is true.

SuppressHeaderPostbacks – This Property is Prevent the client-side click handlers of elements inside a header from firing (this is especially useful when you want to include hyperlinks in your headers for accessibility)

AutoSize – This Property is used to set the height of the accordion control. This Property contains 3 types of varieties

1. None- The Accordion grows/shrinks without restriction

2. Auto- the Accordion never grows larger than the value specified by its Height property.

3. Fill- The Accordion always stays the exact same size as its Height property

Panes - Collection of AccordionPane controls

HeaderTemplate - The Header template contains the markup that should be used for an pane's header when databinding

ContentTemplate - The Content template contains the markup that should be used for a pane's content when databinding

Now we can see how to use accordion control in our application for those first add AjaxControlToolkit reference to your application and add

<%@ Register Namespace="AjaxControlToolkit" Assembly="AjaxControlToolkit" tagPrefix="ajax" %>

To your aspx page and design your page likes this

.accordionContent {

background-color: #D3DEEF;

border-color: -moz-use-text-color #2F4F4F #2F4F4F;

border-right: 1px dashed #2F4F4F;

border-style: none dashed dashed;

border-width: medium 1px 1px;

padding: 10px 5px 5px;

width:20%;

}

.accordionHeaderSelected {

background-color: #5078B3;

border: 1px solid #2F4F4F;

color: white;

cursor: pointer;

font-family: Arial,Sans-Serif;

font-size: 12px;

font-weight: bold;

margin-top: 5px;

padding: 5px;

width:20%;

}

.accordionHeader {

background-color: #2E4D7B;

border: 1px solid #2F4F4F;

color: white;

cursor: pointer;

font-family: Arial,Sans-Serif;

font-size: 12px;

font-weight: bold;

margin-top: 5px;

padding: 5px;

width:20%;

}

.href

{

color:White;

font-weight:bold;

text-decoration:none;

}

</style>

</head>

<body>

<ajax:ToolkitScriptManager ID="Scriptmanager1" runat="server"/>

<div >

<ajax:Accordion ID="UserAccordion" runat="server" SelectedIndex="0" HeaderCssClass="accordionHeader"

HeaderSelectedCssClass="accordionHeaderSelected" ContentCssClass="accordionContent" FadeTransitions="true" SuppressHeaderPostbacks="true" TransitionDuration="250" FramesPerSecond="40" RequireOpenedPane="false" AutoSize="None" >

<Panes>

<ajax:AccordionPane ID="AccordionPane1" runat="server">

<asp:Panel ID="UserReg" runat="server">

<tr>

</td>

<b>Registration Form</b>

</td>

</tr>

<tr>

UserName:

</td>

<td>

<asp:TextBox ID="txtuser" runat="server"></asp:TextBox>

</td>

</tr>

<tr>

Password:

</td>

<td>

<asp:TextBox ID="txtpwd" runat="server"></asp:TextBox>

</td>

</tr>

<tr>

FirstName:

</td>

<td>

<asp:TextBox ID="txtfname" runat="server"></asp:TextBox>

</td>

</tr>

<tr>

LastName:

</td>

<td>

<asp:TextBox ID="txtlname" runat="server"></asp:TextBox>

</td>

</tr>

<tr>

Email:

</td>

<td>

<asp:TextBox ID="txtEmail" runat="server"></asp:TextBox>

</td>

</tr>

<tr>

Phone No:

</td>

<td>

<asp:TextBox ID="txtphone" runat="server"></asp:TextBox>

</td>

</tr>

<tr>

Location:

</td>

<asp:TextBox ID="txtlocation" runat="server"></asp:TextBox>

</td>

</tr>

<tr>

</td>

</tr>

</table>

</asp:Panel>

</Content>

</ajax:AccordionPane>

<ajax:AccordionPane ID="AccordionPane2" runat="server">

<Header><a href="#" class="href">User Detail</a></Header>

<asp:Panel ID="Panel1" runat="server">

<tr>

UserName:

</td>

<td>

<b>Suresh Dasari</b>

</td>

</tr>

<tr>

FirstName:

</td>

<td>

<b>Suresh</b>

</td>

</tr>

<tr>

LastName:

</td>

<td>

<b>Dasari</b>

</td>

</tr>

<tr>

Email:

</td>

<td>

<b>sureshbabudasari@gmail.com</b>

</td>

</tr>

<tr>

Phone No:

</td>

<td>

</td>

</tr>

<tr>

Location:

</td>

<b>Hyderabad</b>

</td>

</tr>

</table>

</asp:Panel>

</Content>

</ajax:AccordionPane>

<ajax:AccordionPane ID="AccordionPane3" runat="server">

<Header><a href="#" class="href">Job Details</a> </Header>

<asp:Panel ID="Panel2" runat="server">

<tr>

Job Type:

</td>

<td>

<b>Software</b>

</td>

</tr>

<tr>

Industry:

</td>

<td>

</td>

</tr>

<tr>

Designation:

</td>

<td>

<b>Software Engineer</b>

</td>

</tr>

<tr>

Company:

</td>

<td>

<b>aspdotnet-suresh</b>

</td>

</tr>

<tr>

Phone No:

</td>

<td>

</td>

</tr>

<tr>

Location:

</td>

<b>Hyderabad</b>

</td>

</tr>

</table>

</asp:Panel>

</Content>

</ajax:AccordionPane>

</Panes>

</ajax:Accordion>

</div>

</form>

</body>

</html>

Demo

Download sample code attached

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23 comments :

Anonymous said...: Superb Brother nice site..................helpfull a lot; November 4, 2011 at 2:22 AM
Abraham L.A. said...: A very good practical example thanks!; December 2, 2011 at 12:09 PM
Anonymous said...: Nice breakdown in the explanation/usage of the Accordian Control; May 9, 2012 at 1:11 PM
-L said...: This is just the exact same content as you'll find on http://www.ajaxcontroltoolkit.com/Accordion/Accordion.aspx with a little bit of your own stuff thrown in (i.e. content for each pane).

It still doesn't explain how you expand the different panes!!!

I've already got all this but nothing happens when I click on the pane headers; November 26, 2012 at 2:26 AM
Anonymous said...: This comment has been removed by a blog administrator.; February 22, 2013 at 8:21 PM
Santanu said...: thanx....very good eg...; May 3, 2013 at 12:10 AM
Unknown said...: hi friend i need 3 textbox autocomplete work like cascaded dropdown list; May 8, 2013 at 11:19 PM
Anonymous said...: hi , it is very good for practice but in dosent work when its width reduce to below 700 , also when we use the coloumn then it also dosent work; June 20, 2013 at 5:07 AM
Unknown said...: Nice Post sir.
Sir tell me how to Hide all panel by default in Accordion controle; July 16, 2013 at 12:41 AM
Unknown said...: any one say how to use the same link tag in horizontal way.my MailId:arunjun6@gmail.com; August 14, 2013 at 2:27 AM
Anonymous said...: Please send me all ajax control example :
pankajkoshti2010@gmail.com; September 12, 2013 at 11:00 PM
mudit said...: sir please send me all ajax control ex:
swthrtislife@gmail.com; September 26, 2013 at 5:30 AM
Unknown said...: nice job bro it's like a social service for us thank u bro; December 2, 2013 at 11:03 PM
Anonymous said...: hi suresh garu,
in accordian pane hyperlinks should be present.and clicking on hyperlink it is to be redirected to a new page.could u show us how to achieve this pls; January 20, 2014 at 10:01 PM
Anonymous said...: I need Code in accordion on Button Click. Instead of that You are providing values in design itself.; September 16, 2014 at 11:27 PM
Unknown said...: This comment has been removed by the author.; March 24, 2015 at 4:27 AM
Unknown said...: Hi Suresh, Thanks. it helped me lot.

But one strange thing happening with my above same code. That is, when I am in design mode, If i switch from HTML Source code page to Design page, and return to HTML page, I see some of the code written above for accordian will be getting created automatically immediately after actual code.

can you please, kindly suggest why it happens?; March 24, 2015 at 4:33 AM
Anonymous said...: thanks sir; April 21, 2015 at 1:52 AM
Unknown said...: excelent; February 6, 2016 at 3:48 PM
Unknown said...: This is very useful for me....Thanks a Lot....for my support.; March 2, 2016 at 1:07 AM
Anonymous said...: Thank you Suresh, I appreciate your work. Thank you very much; March 5, 2017 at 7:15 PM
Dynamics CRM - Best Tips & Tricks said...: its not expending getting JS error in browser.; July 1, 2017 at 1:28 PM
Unknown said...: thanq sir; July 25, 2017 at 4:11 AM

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