I try to check multiple values in ASP.NET CheckboxList but I couldn\'t. I Wrote :
chkApplications.SelectedValue = 2; chkApplications.SelectedValue = 6;
you can put the value in a list (MyList), and use FindByValue to check them.
MyList
FindByValue
foreach (var item in MyList) { checkBoxList.Items.FindByValue(item.id).Selected = true; }