Ryan Welcher

Patrick Rauland

This is a simple WordPress plugin which allows a site adminstrator to limit the number of widgets in a sidebar. You simply go the the settings -> limit widgets page and customize the maximum number of widgets used for each menu.
A nice visual effect will appear in the sidebar in the WordPress admin and the client will be unable to drop new widgets into the sidebar once the cap has been reached.
You can set widgets to have unlimited widgets by leaving the field blank. You can also set the sidebar to have 0 widgets effectively diabling it.
Credits
This is the Internet which means that nothing is created from scratch. This plugin is mostly a combination of work from other people which I just packaged into something with a user interface for easy management.
<ul>
<li><a href="http://wordpress.stackexchange.com/users/8/jan-fabry" rel="nofollow ugc">Jan Fabray</a> on <a href="http://wordpress.stackexchange.com/questions/19907/limit-number-of-widgets-in-sidebars" rel="nofollow ugc">WordPress Answers</a></li>
<li><a href="http://stackoverflow.com/users/821185/aman" rel="nofollow ugc">Aman</a> on <a href="http://stackoverflow.com/questions/6636701/limit-number-of-items-in-sortable-with-draggable-as-source/6663581#6663581" rel="nofollow ugc">Stack Overflow</a></li>
</ul>
Contributors Welcome
<ul>
<li>Submit a <a href="https://github.com/BFTrick/limit-widgets" rel="nofollow ugc">pull request on Github</a></li>
</ul>
Author
<ul>
<li><a href="http://www.patrickrauland.com" rel="nofollow ugc">Patrick Rauland</a></li>
<li><a href="http://www.ryanwelcher.com" rel="nofollow ugc">Ryan Welcher</a></li>
</ul>

Limit Widgets

A plugin for WordPress that limits the number of widgets in a sidebar.

Chandan Garg

Are you looking for easy and robust way to manage your sidebar areas dynamically from wordpress admin ? CG Dynamic Sidebar is a suite of components which helps you to create your custom sidebar area and allows you to add upto 20 different sidebar areas which you can use them in your website.
CG Dynamic Sidebar is focused on ease of integration and ease of use. It is deliberately powerful plugin using which users can create their own sidebar easily without having any technical knowledge of how to create custom sidebars. 
Usage :
<pre> <?php dynamic_sidebar("my-custom-sidebar"); ?> </pre>
<h3>Usage</h3>
While adding your sidebar area you have option to keep your sidebar id, this id will be used to display your custom sidebar in page/post. 
If you have added a new sidebar with below details : 
Sidebar Title : My Custom Sidebar 
Sidebar id : my-custom-sidebar
Then, to use this sidebar, you have to use below PHP code in your sidebar.php or anywhere you want to show this sidebar.
<pre> <?php dynamic_sidebar("my-custom-sidebar"); ?> </pre>

CG Dynamic Sidebar

CG Dynamic Sidebar helps you to add/create multiple sidebar areas in your admin widgets screen. Easy Installation and Easy management.

Limit Widgets vs CG Dynamic Sidebar