Ok,
Hi all, new to asp.net. Simple question
with web forms
I have a Dropdownlist and a listbox, I want to click on and item in the
dropdownlist and show items in listbox. that simple
I have this: I have two items in Dropdownlist. The Reportlist doesn't show
the items ?
I tried to set the Autopostback to true. This does work but, the page
flickers
Private Sub Databaselist_SelectedIndexChanged(ByVal sender As
System.Object, ByVal e As System.EventArgs) Handles
Databaselist.SelectedIndexChanged
If Databaselist.SelectedValue = "Test1" Then
ReportList.Items.Clear()
ReportList.Items.Add("Test1Totals by Date Range")
ReportList.Items.Add("Test1Totals by name and Date Range")
ElseIf Databaselist.SelectedValue = "Test2" Then
ReportList.Items.Clear()
ReportList.Items.Add("Test2Totals by Date Range")
ReportList.Items.Add("Test2 Totals by name and Date Range")
End If
End Sub 8 1456
are you clearing them/setting them in the page_load? You may be blanking
them out each time.
look at the IsPostBack() to differentiate
--
Curt Christianson
Site & Scripts: http://www.Darkfalz.com
Blog: http://blog.Darkfalz.com
"gv" <vi*****@musc.edu> wrote in message
news:%2******************@TK2MSFTNGP12.phx.gbl... Ok,
Hi all, new to asp.net. Simple question
with web forms
I have a Dropdownlist and a listbox, I want to click on and item in the dropdownlist and show items in listbox. that simple
I have this: I have two items in Dropdownlist. The Reportlist doesn't show the items ?
I tried to set the Autopostback to true. This does work but, the page flickers
Private Sub Databaselist_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Databaselist.SelectedIndexChanged If Databaselist.SelectedValue = "Test1" Then
ReportList.Items.Clear() ReportList.Items.Add("Test1Totals by Date Range") ReportList.Items.Add("Test1Totals by name and Date Range")
ElseIf Databaselist.SelectedValue = "Test2" Then
ReportList.Items.Clear() ReportList.Items.Add("Test2Totals by Date Range") ReportList.Items.Add("Test2 Totals by name and Date Range")
End If End Sub
Gv:
It works fine for me. Are you sure you have the AutoPostBack=true for the
dropdownlist?
karl
--
MY ASP.Net tutorials http://www.openmymind.net/
"gv" <vi*****@musc.edu> wrote in message
news:%2******************@TK2MSFTNGP12.phx.gbl... Ok,
Hi all, new to asp.net. Simple question
with web forms
I have a Dropdownlist and a listbox, I want to click on and item in the dropdownlist and show items in listbox. that simple
I have this: I have two items in Dropdownlist. The Reportlist doesn't show the items ?
I tried to set the Autopostback to true. This does work but, the page flickers
Private Sub Databaselist_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Databaselist.SelectedIndexChanged If Databaselist.SelectedValue = "Test1" Then
ReportList.Items.Clear() ReportList.Items.Add("Test1Totals by Date Range") ReportList.Items.Add("Test1Totals by name and Date Range")
ElseIf Databaselist.SelectedValue = "Test2" Then
ReportList.Items.Clear() ReportList.Items.Add("Test2Totals by Date Range") ReportList.Items.Add("Test2 Totals by name and Date Range")
End If End Sub
Thanks for your help, I'm only clearing the listbox before I load the new
values based on what is selected in the dropdownlist.
The values load fine when the page first opens. Not when the
controls SelectedIndexChanged event fires.
GV
"Curt_C [MVP]" <software_AT_darkfalz.com> wrote in message
news:uv**************@TK2MSFTNGP11.phx.gbl... are you clearing them/setting them in the page_load? You may be blanking them out each time. look at the IsPostBack() to differentiate
-- Curt Christianson Site & Scripts: http://www.Darkfalz.com Blog: http://blog.Darkfalz.com
"gv" <vi*****@musc.edu> wrote in message news:%2******************@TK2MSFTNGP12.phx.gbl... Ok,
Hi all, new to asp.net. Simple question
with web forms
I have a Dropdownlist and a listbox, I want to click on and item in the dropdownlist and show items in listbox. that simple
I have this: I have two items in Dropdownlist. The Reportlist doesn't show the items ?
I tried to set the Autopostback to true. This does work but, the page flickers
Private Sub Databaselist_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Databaselist.SelectedIndexChanged If Databaselist.SelectedValue = "Test1" Then
ReportList.Items.Clear() ReportList.Items.Add("Test1Totals by Date Range") ReportList.Items.Add("Test1Totals by name and Date Range")
ElseIf Databaselist.SelectedValue = "Test2" Then
ReportList.Items.Clear() ReportList.Items.Add("Test2Totals by Date Range") ReportList.Items.Add("Test2 Totals by name and Date Range")
End If End Sub
If I do that, it works fine like I said but, flickers?
I don't want it to flicker when I do this.
thanks
gv
"Karl Seguin" <karl REMOVE @ REMOVE openmymind REMOVEMETOO . ANDME net>
wrote in message news:e5**************@TK2MSFTNGP09.phx.gbl... Gv: It works fine for me. Are you sure you have the AutoPostBack=true for the dropdownlist?
karl
-- MY ASP.Net tutorials http://www.openmymind.net/
"gv" <vi*****@musc.edu> wrote in message news:%2******************@TK2MSFTNGP12.phx.gbl... Ok,
Hi all, new to asp.net. Simple question
with web forms
I have a Dropdownlist and a listbox, I want to click on and item in the dropdownlist and show items in listbox. that simple
I have this: I have two items in Dropdownlist. The Reportlist doesn't show the items ?
I tried to set the Autopostback to true. This does work but, the page flickers
Private Sub Databaselist_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Databaselist.SelectedIndexChanged If Databaselist.SelectedValue = "Test1" Then
ReportList.Items.Clear() ReportList.Items.Add("Test1Totals by Date Range") ReportList.Items.Add("Test1Totals by name and Date Range")
ElseIf Databaselist.SelectedValue = "Test2" Then
ReportList.Items.Clear() ReportList.Items.Add("Test2Totals by Date Range") ReportList.Items.Add("Test2 Totals by name and Date Range")
End If End Sub
Geez..so much for reading through everything....i didn't catch that at all.
One solution is to do everything on the client-side...which has its up and
down side.
Another one is to turn on SmartNavigation which only works in IE and some
people have a lot of problems with it. Try putting SmartNaviation=true in
the <%@ Page directive...
You should check out: http://weblogs.asp.net/ksamaschke/ar...4/27/6085.aspx or just do a
google search for SmartNavigation
Other that that, it's the nature of doing web programming...
Karl
--
MY ASP.Net tutorials http://www.openmymind.net/
"gv" <vi*****@musc.edu> wrote in message
news:Ox**************@TK2MSFTNGP09.phx.gbl... If I do that, it works fine like I said but, flickers?
I don't want it to flicker when I do this.
thanks gv
"Karl Seguin" <karl REMOVE @ REMOVE openmymind REMOVEMETOO . ANDME net> wrote in message news:e5**************@TK2MSFTNGP09.phx.gbl... Gv: It works fine for me. Are you sure you have the AutoPostBack=true for
the dropdownlist?
karl
-- MY ASP.Net tutorials http://www.openmymind.net/
"gv" <vi*****@musc.edu> wrote in message news:%2******************@TK2MSFTNGP12.phx.gbl... Ok,
Hi all, new to asp.net. Simple question
with web forms
I have a Dropdownlist and a listbox, I want to click on and item in the dropdownlist and show items in listbox. that simple
I have this: I have two items in Dropdownlist. The Reportlist doesn't show the items ?
I tried to set the Autopostback to true. This does work but, the page flickers
Private Sub Databaselist_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Databaselist.SelectedIndexChanged If Databaselist.SelectedValue = "Test1" Then
ReportList.Items.Clear() ReportList.Items.Add("Test1Totals by Date Range") ReportList.Items.Add("Test1Totals by name and Date Range")
ElseIf Databaselist.SelectedValue = "Test2" Then
ReportList.Items.Clear() ReportList.Items.Add("Test2Totals by Date Range") ReportList.Items.Add("Test2 Totals by name and Date Range")
End If End Sub
you cant avoid the flicker. That is the page making a round trip to the
server, its unavoidable unless you do it all with clientside code
--
Curt Christianson
Site & Scripts: http://www.Darkfalz.com
Blog: http://blog.Darkfalz.com
"gv" <vi*****@musc.edu> wrote in message
news:Ox**************@TK2MSFTNGP09.phx.gbl... If I do that, it works fine like I said but, flickers?
I don't want it to flicker when I do this.
thanks gv
"Karl Seguin" <karl REMOVE @ REMOVE openmymind REMOVEMETOO . ANDME net> wrote in message news:e5**************@TK2MSFTNGP09.phx.gbl... Gv: It works fine for me. Are you sure you have the AutoPostBack=true for the dropdownlist?
karl
-- MY ASP.Net tutorials http://www.openmymind.net/
"gv" <vi*****@musc.edu> wrote in message news:%2******************@TK2MSFTNGP12.phx.gbl... Ok,
Hi all, new to asp.net. Simple question
with web forms
I have a Dropdownlist and a listbox, I want to click on and item in the dropdownlist and show items in listbox. that simple
I have this: I have two items in Dropdownlist. The Reportlist doesn't show the items ?
I tried to set the Autopostback to true. This does work but, the page flickers
Private Sub Databaselist_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Databaselist.SelectedIndexChanged If Databaselist.SelectedValue = "Test1" Then
ReportList.Items.Clear() ReportList.Items.Add("Test1Totals by Date Range") ReportList.Items.Add("Test1Totals by name and Date Range")
ElseIf Databaselist.SelectedValue = "Test2" Then
ReportList.Items.Clear() ReportList.Items.Add("Test2Totals by Date Range") ReportList.Items.Add("Test2 Totals by name and Date Range")
End If End Sub
How would I do this part on the client side?
SmartNavigation didn't help.
thanks
Gerry
"Karl Seguin" <karl REMOVE @ REMOVE openmymind REMOVEMETOO . ANDME net>
wrote in message news:eS**************@TK2MSFTNGP11.phx.gbl... Geez..so much for reading through everything....i didn't catch that at all.
One solution is to do everything on the client-side...which has its up and down side.
Another one is to turn on SmartNavigation which only works in IE and some people have a lot of problems with it. Try putting SmartNaviation=true in the <%@ Page directive... You should check out: http://weblogs.asp.net/ksamaschke/ar...4/27/6085.aspx or just do a google search for SmartNavigation
Other that that, it's the nature of doing web programming...
Karl
-- MY ASP.Net tutorials http://www.openmymind.net/
"gv" <vi*****@musc.edu> wrote in message news:Ox**************@TK2MSFTNGP09.phx.gbl... If I do that, it works fine like I said but, flickers?
I don't want it to flicker when I do this.
thanks gv
"Karl Seguin" <karl REMOVE @ REMOVE openmymind REMOVEMETOO . ANDME net> wrote in message news:e5**************@TK2MSFTNGP09.phx.gbl... > Gv: > It works fine for me. Are you sure you have the AutoPostBack=true for the > dropdownlist? > > karl > > -- > MY ASP.Net tutorials > http://www.openmymind.net/ > > > "gv" <vi*****@musc.edu> wrote in message > news:%2******************@TK2MSFTNGP12.phx.gbl... >> Ok, >> >> Hi all, new to asp.net. Simple question >> >> with web forms >> >> I have a Dropdownlist and a listbox, I want to click on and item in >> the >> dropdownlist and show items in listbox. that simple >> >> I have this: I have two items in Dropdownlist. The Reportlist doesn't >> show >> the items ? >> >> I tried to set the Autopostback to true. This does work but, the page >> flickers >> >> Private Sub Databaselist_SelectedIndexChanged(ByVal sender As >> System.Object, ByVal e As System.EventArgs) Handles >> Databaselist.SelectedIndexChanged >> If Databaselist.SelectedValue = "Test1" Then >> >> ReportList.Items.Clear() >> ReportList.Items.Add("Test1Totals by Date Range") >> ReportList.Items.Add("Test1Totals by name and Date Range") >> >> ElseIf Databaselist.SelectedValue = "Test2" Then >> >> ReportList.Items.Clear() >> ReportList.Items.Add("Test2Totals by Date Range") >> ReportList.Items.Add("Test2 Totals by name and Date >> Range") >> >> End If >> End Sub >> >> > >
GV:
There's no magic bullet to achieve this...it involves knowing a lot about
javascript, cross browser issues and using whatever ASP.Net offers to make
it easier (which really isn't too much, sadly).
One slightly clean solution is outlined here: http://www.15seconds.com/issue/010205.htm
hope this sends you in the right direction.
Karl
--
MY ASP.Net tutorials http://www.openmymind.net/
"gv" <vi*****@musc.edu> wrote in message
news:O$**************@TK2MSFTNGP09.phx.gbl... How would I do this part on the client side?
SmartNavigation didn't help.
thanks Gerry
"Karl Seguin" <karl REMOVE @ REMOVE openmymind REMOVEMETOO . ANDME net> wrote in message news:eS**************@TK2MSFTNGP11.phx.gbl... Geez..so much for reading through everything....i didn't catch that at all.
One solution is to do everything on the client-side...which has its up
and down side.
Another one is to turn on SmartNavigation which only works in IE and
some people have a lot of problems with it. Try putting SmartNaviation=true in the <%@ Page directive... You should check out: http://weblogs.asp.net/ksamaschke/ar...4/27/6085.aspx or just
do a google search for SmartNavigation
Other that that, it's the nature of doing web programming...
Karl
-- MY ASP.Net tutorials http://www.openmymind.net/
"gv" <vi*****@musc.edu> wrote in message news:Ox**************@TK2MSFTNGP09.phx.gbl... If I do that, it works fine like I said but, flickers?
I don't want it to flicker when I do this.
thanks gv
"Karl Seguin" <karl REMOVE @ REMOVE openmymind REMOVEMETOO . ANDME net> wrote in message news:e5**************@TK2MSFTNGP09.phx.gbl... > Gv: > It works fine for me. Are you sure you have the AutoPostBack=true
for the > dropdownlist? > > karl > > -- > MY ASP.Net tutorials > http://www.openmymind.net/ > > > "gv" <vi*****@musc.edu> wrote in message > news:%2******************@TK2MSFTNGP12.phx.gbl... >> Ok, >> >> Hi all, new to asp.net. Simple question >> >> with web forms >> >> I have a Dropdownlist and a listbox, I want to click on and item in >> the >> dropdownlist and show items in listbox. that simple >> >> I have this: I have two items in Dropdownlist. The Reportlist
doesn't >> show >> the items ? >> >> I tried to set the Autopostback to true. This does work but, the
page >> flickers >> >> Private Sub Databaselist_SelectedIndexChanged(ByVal sender As >> System.Object, ByVal e As System.EventArgs) Handles >> Databaselist.SelectedIndexChanged >> If Databaselist.SelectedValue = "Test1" Then >> >> ReportList.Items.Clear() >> ReportList.Items.Add("Test1Totals by Date Range") >> ReportList.Items.Add("Test1Totals by name and Date
Range") >> >> ElseIf Databaselist.SelectedValue = "Test2" Then >> >> ReportList.Items.Clear() >> ReportList.Items.Add("Test2Totals by Date Range") >> ReportList.Items.Add("Test2 Totals by name and Date >> Range") >> >> End If >> End Sub >> >> > >
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