How to block the sandbox solutions in SharePoint 2010

In this article we will be seeing how to block or unblock the sandbox solutions in SharePoint 2010.

I have created a sandbox solution (wsp file) which consists of a simple web part and I have deployed that in the site collection. Now I am going to block the sandbox solution that I have deployed so that it does not run. Sandbox solution can be blocked in the central administration by the farm administrator.

Steps Involved:

Go to Central Administration => System Settings =>Farm Management => Manage User Solutions.
Browse for the wsp file.
Add the message and click on Block.
Sandbox solution will be added to the Blocked Solutions as shown in the following.
Click on ok.
Open the SharePoint site.
Go to Site Actions =>Edit Page =>"Editing Tools" in the ribbon interface =>Insert.
In the "Categories" select Custom => Sandbox (which is a custom web part).
Click on Add.
You will get the following error.
This is because the sandbox solution is added to the blocked solutions.

Note: If the solution code is changed and redeployed, it will be seen as a new sandboxed solution and will be allowed to run even if the original is still blocked.