I need help.
I'm a begginer, a student, and still learning asp.net with vb.net. I have stucked at filtering gridview with ComboBoxList as multiple checkboxes, if selected more then 2.
I have add a gridview with all columns from database (id, firstname, secondname), and assigned Comboboxlist control to gridview. It is working, but only if one checkbox is selected. But I want to retrieve, also rows if second, or third checkbox is selected.
SELECT * FROM [main] WHERE ([FirstName] = ?)
Thank you in advance for help to anyone.