Introduction
This tip discusses how to create a good Accordion Panel with CSS, using ASP.NET Ajax Control Toolkit in ASP.NET? Did you know what an Accordion Panel is? Collapsible Divs or All other Page Controls inside a Panel and Hide and show panel without Page Load and without Postback.
Content
Today, I am going to show you how to make a Good Accordion Panel.
Do you know, what an Accordion Panel is? You must have seen some tables or Divs in websites, that can collapse and expand on just Click. You can also call them Collapsible Div or Table.
ASP.NET Ajax Tools make it so much simpler for ASP.NET. You just need to link AjaxControlToolkit.dll to your bin folder and use it in the Page.
Let's add a new Web Form in Solution, this is the Page, where you want to add your collapsible div or table that may contain anything.
The source code for the above design is here:
<%@ Page Language="C#" AutoEventWireup="true"
CodeFile="Default.aspx.cs" Inherits="_Default" %>
<%@ Register Assembly="AjaxControlToolkit"
Namespace="AjaxControlToolkit" TagPrefix="asp" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>Accordian with CSS >> P.Yar.B Complex</title>
<%----%>
</head>
<body>
<form id="form1" runat="server">
<asp:ScriptManager ID="ScriptManager1" runat="server">
</asp:ScriptManager>
<table width="100%" border="0">
<tr>
<td colspan="2" align="center">
<h1>Accordian with CSS</h1>
</td>
</tr>
<tr>
<td colspan="3" align="center">
<asp:Accordion ID="Accordion1" runat="server"
HeaderCssClass="accordionHeader"
HeaderSelectedCssClass="accordionHeaderSelected"
ContentCssClass="accordionContent" Width="490px">
<Panes>
<asp:AccordionPane ID="pane1" runat="server">
<Header>Hardwares</Header>
<Content>
Mouse
KeyBoard
Monitor
Printer
CPU
Speakers
Camera
</Content>
</asp:AccordionPane>
<asp:AccordionPane ID="pane2" runat="server">
<Header>Operating System</Header>
<Content>
MS Windows
Linux
Android
Mac
Unix
</Content>
</asp:AccordionPane>
<asp:AccordionPane ID="pane3" runat="server">
<Header>.NET IDE</Header>
<Content>
Visual Studio
Visual Web Developer
SharpDevelop
MonoDevelop
</Content>
</asp:AccordionPane>
<asp:AccordionPane ID="pane4" runat="server">
<Header>John Bhatt</Header>
<Content>
<a href="http://www.johnbhatt.com"
target="_blank">Portal Home</a>
<a href="http://blog.johnbhatt.com"
target="_blank">Blog of P.Yar.B</a>
<a href="http://media.johnbhatt.com"
target="_blank">Download Center</a>
</Content>
</asp:AccordionPane>
</Panes>
</asp:Accordion>
</td>
</tr>
</table>
</form>
</body>
</html>
Now let's see what is in the CSS:
.accordionHeader {
border: 1px solid #2F4F4F;
color: white;
background-color: #2E4d7B;
font-family: Arial, Sans-Serif;
font-size: 12px;
font-weight: bold;
padding: 5px;
margin-top: 5px;
cursor: pointer;
}
#master_content .accordionHeader a {
color: #FFFFFF;
background: none;
text-decoration: none;
}
#master_content .accordionHeader a:hover {
background: none;
text-decoration: underline;
}
.accordionHeaderSelected {
border: 1px solid #2F4F4F;
color: white;
background-color: #5078B3;
font-family: Arial, Sans-Serif;
font-size: 12px;
font-weight: bold;
padding: 5px;
margin-top: 5px;
cursor: pointer;
}
#master_content .accordionHeaderSelected a {
color: #FFFFFF;
background: none;
text-decoration: none;
}
#master_content .accordionHeaderSelected a:hover {
background: none;
text-decoration: underline;
}
.accordionContent {
background-color: #D3DEEF;
border: 1px dashed #2F4F4F;
border-top: none;
padding: 5px;
padding-top: 10px;
}
Now run the page again. Let's see how it looks.
Check this on your machine. Best of luck!
