dropdownlist

[shalini166]

hi

I need to populate the respective states from the states dropdownlist when a user chooses a country from the country dropdownlist. Similary when the state is selected from the states dropdownlist the corresponding cities should get displayed in the cities dropdownlistbox . Pls provide me with the coding? Here is the following code which i developed.

example(c#.net)

Private Sub fillcountry()
ddlcountry.Item s.Add("India")
ddlcountry.Item s.Add("UK")
ddlcountry.Item s.Add("USA")
ddlcountry.Item s.Add("Germany" )
End Sub
Private Sub fillstate()
'list of states in india
ddlstate.Items. Add("Tamilnadu" )
ddlstate.Items. Add("AndhraPrad esh")
ddlstate.Items. Add("Kerela")
ddlstate.Items. Add("MadhyaPrad esh")
'list of states in UK
ddlstate.Items. Add("Yorkshire" )
ddlstate.Items. Add("London")
ddlstate.Items. Add("Surrey")
ddlstate.Items. Add("Manchester shire")
'list of states in USA
ddlstate.Items. Add("Florida")
ddlstate.Items. Add("California ")
ddlstate.Items. Add("Atlanta")
ddlstate.Items. Add("Chicago")
'list of states in Germany
ddlstate.Items. Add("Berlin")
ddlstate.Items. Add("Hamberg")
ddlstate.Items. Add("Frankfurt" )
ddlstate.Items. Add("Munich")
End Sub
Private Sub fillcity()
'list of cities in india
ddlstate.Items. Add("Mumbai")
ddlstate.Items. Add("Chennai")
ddlstate.Items. Add("Kolkatta")
ddlstate.Items. Add("Delhi")
'list of cities in UK
ddlstate.Items. Add("Yorkshire" )
ddlstate.Items. Add("London")
ddlstate.Items. Add("Surrey")
ddlstate.Items. Add("Manchester shire")
'list of cities in USA
ddlstate.Items. Add("Florida")
ddlstate.Items. Add("California ")
ddlstate.Items. Add("Atlanta")
ddlstate.Items. Add("Chicago")
'list of cities in Germany
ddlstate.Items. Add("Berlin")
ddlstate.Items. Add("Hamberg")
ddlstate.Items. Add("Frankfurt" )
ddlstate.Items. Add("Munich")
End Sub

[malav123]

whatever you wants just put it in ddlcountry_sele ctedindexchaged event....
just like if ddlcountry.sele ctedvalue="indi a" then
ddlstate.items. add("")
ddlstate.items. add("")
ddlstate.items. add("")
else if ddlcountry.sele ctedvalue="UK" then
ddlstate.items. add("")
ddlstate.items. add("")
ddlstate.items. add("")
end if

just code it yourself it's easy.....

[kunal pawar]

First set property Autopostback=tr ue for drop down control and write ur fill code in selected index changed event



Private Sub fillcountry()
ddlcountry.Item s.Add("India")
ddlcountry.Item s.Add("UK")
ddlcountry.Item s.Add("USA")
ddlcountry.Item s.Add("Germany" )
End Sub

Protected Sub ddlcountry_Sele ctedIndexChange d(ByVal sender As Object, ByVal e As System.EventArg s) Handles ddlstInstituteN ame.SelectedInd exChanged

'CAll ur fill state method for selected item text
fillstate()

End Sub

Private Sub fillstate()
'list of states in india
ddlstate.Items. Add("Tamilnadu" )
ddlstate.Items. Add("AndhraPrad esh")
ddlstate.Items. Add("Kerela")
ddlstate.Items. Add("MadhyaPrad esh")
'list of states in UK
ddlstate.Items. Add("Yorkshire" )
ddlstate.Items. Add("London")
ddlstate.Items. Add("Surrey")
ddlstate.Items. Add("Manchester shire")
'list of states in USA
ddlstate.Items. Add("Florida")
ddlstate.Items. Add("California ")
ddlstate.Items. Add("Atlanta")
ddlstate.Items. Add("Chicago")
'list of states in Germany
ddlstate.Items. Add("Berlin")
ddlstate.Items. Add("Hamberg")
ddlstate.Items. Add("Frankfurt" )
ddlstate.Items. Add("Munich")
End Sub

same for cities

[malav123]

First set property Autopostback=tr ue for drop down control and write ur fill code in selected index changed event



Private Sub fillcountry()
ddlcountry.Item s.Add("India")
ddlcountry.Item s.Add("UK")
ddlcountry.Item s.Add("USA")
ddlcountry.Item s.Add("Germany" )
End Sub

Protected Sub ddlcountry_Sele ctedIndexChange d(ByVal sender As Object, ByVal e As System.EventArg s) Handles ddlstInstituteN ame.SelectedInd exChanged

'CAll ur fill state method for selected item text
fillstate()

End Sub

Private Sub fillstate()
'list of states in india
ddlstate.Items. Add("Tamilnadu" )
ddlstate.Items. Add("AndhraPrad esh")
ddlstate.Items. Add("Kerela")
ddlstate.Items. Add("MadhyaPrad esh")
'list of states in UK
ddlstate.Items. Add("Yorkshire" )
ddlstate.Items. Add("London")
ddlstate.Items. Add("Surrey")
ddlstate.Items. Add("Manchester shire")
'list of states in USA
ddlstate.Items. Add("Florida")
ddlstate.Items. Add("California ")
ddlstate.Items. Add("Atlanta")
ddlstate.Items. Add("Chicago")
'list of states in Germany
ddlstate.Items. Add("Berlin")
ddlstate.Items. Add("Hamberg")
ddlstate.Items. Add("Frankfurt" )
ddlstate.Items. Add("Munich")
End Sub

same for cities

Hi Kunal,
from your suggested code, i think it will fill all the state for all country and it will fill all the cities for all the state because there is no any specific condition for specific country....