asp.net - Getting checkboxList values as per selected category from parent checkboxList -

i trying fetch checkboxlist database (working). there 2 checkboxlist on page: first gets fetch when page loads, second gets fetched selected values first checkboxlist. working when select first time first checkboxlist. when select second value first checkboxlist string gets structured

('value1','value2 " & vblf & "')

it should make string this

('value1','value2')

now don't understand & vblf &.

dim joiner string = "" dim whereclause string = string.empty dim categorycondition string = string.empty  = 0 categoryfilter.items.count - 1     if categoryfilter.items(i).selected         dim category string = categoryfilter.items(i).tostring         categorycondition = string.concat(categorycondition, joiner, string.format("'{0}'", category))         if joiner = "" joiner = ","     end if next 

use built-in functionality checked items , concatenate string linq

1. get checked items control (categoryfilter.checkeditems)
2. convert them string (cast(of string)())
3. put ' around them individually (select())
4. join them , (aggregate())

code:

dim categorycondition string = me.categoryfilter.checkeditems.     cast(of string)().     select(function(i1) string.format("'{0}'", i1)).     aggregate(function(i1, i2) string.format("{0}, {1}", i1, i2)) 

if line feed still exists, it's probable exists in checkedlistbox items itself. said that's coming database, maybe that's (not working).