i  have problem regarding parameters. while i do like this crv.SelectionFormula = "{tbale1.name} = " + textbox1.text then it works fine but i need to grab more columns based on user selection from CheckBox list.

thanks for the reply. but dear it did not work either, actually what i want to do basically dynamically create the columns. like i already told that my tbale has 30 columns and i want ot show only those that are selected by the user from the checkboxlist control. any help will be appreciated