Need to change layout of the page at runtime

[Abhishek Purwar]

Hi friends,

I have a question.
Scenario : There are three portlets in a page and using two row layout (one row has one portlet and other has remaining two portlet.) Based on condition, I need show only a single portlet (this portlet is other than those three already present) on a page. How can I change the layout of page at runtime and load new portlet?

Please provide suggestions and code sample so that I can proceed forward. (i am stuck at this scenario).