I want to provide an option for applying filters at runtime on the selected columns in my query generated from the active query builder.
For example: I have a select query on table but I want to give user the facility to select a date range or threshold value based on which data should be retrieved. I want to provide that option visually to the user. Is there any mechanism we can do so.
We've made the special control to let users easily define filters to queries which are already built. It is called the CriteriaBuilder. It is a user interface to the QueryTransformer component which can also perform grouping, totals calculation and row limitation (paging). It is described here:
How to change sorting, add filters, limits and aggregations to the query?
The sample of the CriteriaBuilder usage is provided in the Full-featured demo if you are evaluating the WinForms or WPF or in the Query Results demo in the ASP.NET Edition.