c# - BindindSource Filter does not work -

please see following code on winform load method:

list<customersdto> res = new list<customersdto>(); res = _customerbo.getcustomers(); customerbindingsource.datasource = res; customerdatagridview.datasource = this.customerbindingsource; customerbindingnavigator.bindingsource = this.customerbindingsource; 

now want filter on searchbutton not able see filtered record on screen.

customerbindingsource.filter = "active = false"; 

i missing something.. did reasearch. can give me exact code example? read implementing ibindinglist not sure how bindingsource..

can help?

you don't have implement ibindinglist. can construct bindinglist datasource of customerbindingsource. this:

customerbindingsource.datasource = new bindinglist<customersdto>(res);