While filtering in Radgrid column and using special character "%" it is not searching using "%", simply searching by other text.

Suppose we are filtering using "30%", but the results are shown as it is only 30. 
While debugging I found out that the used sql query becomes like following

like '%30%%'

In this the percentage symbol just after 30 is the symbol passed from UI but query considers as if we are looking for 30.

Currently the RADGrid  only supports creation of columns on the server side. With todays browsers capabilities it is important to support client side column creation as well.

If the user's browser supports html5 local storage, I'd like for the RadGrid to be able to save/load its settings from there for things like page size, column order, sorting, etc.  Other controls may be able to do this as well.