I have two Dropdownlist and one which is containing States and one
containing Cities. I know how to do all the little databinding task in
visual studios interface as well as set the relationship (parent, child,
etc.). In the code behind file in page_load event I fill the data adapter
and databind the State dropdownlist. I also set the on_change event for the
Cities dropdownlist after a state is selected. However, When I run this page
in the browser the state dropdownlist populate with the States, but after
selecting a State the Cities dropdownlist DO NOTHING.
What I'm I doing wrong? Could some one please send me some code that handle
these action?
I'm working with stored procedures from sql2000. Should I just set up a
parameter procedure for the Cities dropdownlist (instead of Relationship in
vs.net) and pass in the selected State?
2  2097 
But when doing things that way I get a System.Data.Rel atedView message in
the child related (Cities) dropdownlist. What could I possibly be doing
wrong?
"Pete Wright" <pe**@codemonke y.demon.co.uk> wrote in message
news:be******** ************@ne ws.demon.co.uk. .. I'm not sure I have a very good handle on exactly what it is your code is
doing, but your problem lies with how you've bound. Bind the cities drop
down to the relationship, not the table. That way it should refresh when
the state is changed.
--
Peter Wright
Author of ADO.NET Novice To Pro, from Apress Inc.
_______________ ______________
"Leon Shaw" <vn*****@msn.co m> wrote in message
news:%2******** ********@TK2MSF TNGP11.phx.gbl. .. I have two Dropdownlist and one which is containing States and one
containing Cities. I know how to do all the little databinding task in
visual studios interface as well as set the relationship (parent, child,
etc.). In the code behind file in page_load event I fill the data
adapter and databind the State dropdownlist. I also set the on_change event for
the Cities dropdownlist after a state is selected. However, When I run this
page in the browser the state dropdownlist populate with the States, but
after selecting a State the Cities dropdownlist DO NOTHING.
What I'm I doing wrong? Could some one please send me some code that
handle these action?
I'm working with stored procedures from sql2000. Should I just set up a
parameter procedure for the Cities dropdownlist (instead of Relationship
in vs.net) and pass in the selected State?
But when doing things that way I get a System.Data.Rel atedView message in
the child related (Cities) dropdownlist. What could I possibly be doing
wrong?
"Pete Wright" <pe**@codemonke y.demon.co.uk> wrote in message
news:be******** ************@ne ws.demon.co.uk. .. I'm not sure I have a very good handle on exactly what it is your code is
doing, but your problem lies with how you've bound. Bind the cities drop
down to the relationship, not the table. That way it should refresh when
the state is changed.
--
Peter Wright
Author of ADO.NET Novice To Pro, from Apress Inc.
_______________ ______________
"Leon Shaw" <vn*****@msn.co m> wrote in message
news:%2******** ********@TK2MSF TNGP11.phx.gbl. .. I have two Dropdownlist and one which is containing States and one
containing Cities. I know how to do all the little databinding task in
visual studios interface as well as set the relationship (parent, child,
etc.). In the code behind file in page_load event I fill the data
adapter and databind the State dropdownlist. I also set the on_change event for
the Cities dropdownlist after a state is selected. However, When I run this
page in the browser the state dropdownlist populate with the States, but
after selecting a State the Cities dropdownlist DO NOTHING.
What I'm I doing wrong? Could some one please send me some code that
handle these action?
I'm working with stored procedures from sql2000. Should I just set up a
parameter procedure for the Cities dropdownlist (instead of Relationship
in vs.net) and pass in the selected State?
This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics | |
by: Matthias S. |
last post by:
Hi,
I have to write an application which extensively uses an SQL Database.
For a simple example say I have the following tables with the
appropriate fields.
1. Company (ID, Name, AddresseInfoID)
2. AddresseInfo (ID, Street, City, Zip)
(Those two obviously have a relationship)
|
by: Moojjoo |
last post by:
Good Monday Morning:
I am at a dead stop and I am hoping some other developers out there can help
me out. I have built a dataset that first contains a table populated from
SQL Server then I am adding another table that is built from the same Query
and data from active directory. I have built a parent/child relationship and
see all the data under my locals when debugging. Where I am having the
problem is displaying the data from the...
|
by: Christopher Weaver |
last post by:
I have a DataSet with two tables and a DataRelation. When I populate the
DataSet and define a master detail relationship through the DataRelation,
the grid bound to the master table shows both the master and detail rows
while the grid bound to the detail table shows the detail rows for all of
the master table rows. I would like the grid bound to the detail table to
show the detail rows related to the each master row as the user moves...
|
by: D Witherspoon |
last post by:
I am developing a Windows Forms application in VB.NET that will use .NET
remoting to access the data tier classes.
A very simple way I have come up with is by creating typed (.xsd) datasets.
For example dsParts.xsd and including that in the data tier. I then will
create a class that looks like this
Public Class CPart
Inherits dsParts
|
by: Kent Boogaart |
last post by:
Hi,
I have some hierarchical data (FAQs) that I would like to bind to. The basic
structure is:
FAQ Category
+ Categories
+ FAQs
So an FAQ category has any number of sub-categories and any number of FAQs.
| | |
by: mjsterz |
last post by:
I've been working with VB .NET for less than a year and this is the
first time I've posted on one of these groups, so let me apologize
beforehand if I'm being unclear, not posting my issue correctly,
posting to the wrong forum, or committing some other sort of faux pas.
My team is developing a Windows Forms application using VS 2005 with
SQL Server 2005 on the back end and we're having a problem using
ComboBoxes data bound to lookup...
|
by: Alan Silver |
last post by:
Hello,
MSDN (amongst other places) is full of helpful advice on ways to do data
access, but they all seem geared to wards enterprise applications. Maybe
I'm in a minority, but I don't have those sorts of clients. Mine are all
small businesses whose sites will never reach those sorts of scales. I
deal with businesses whose sites get maybe a few hundred visitors per
day (some not even that much) and get no more than ten orders per day....
|
by: Ginger Estherskip |
last post by:
I'm setting up a dataset using the GUI to have a Parent Data Table and a few
Child Data Tables.
I then have a form that uses that dataset, and I can fill the appropriate
datatables et. al., but I can't figure out how that parent/child
relationship gets enforced? It's a one to one relationship, and when I bind
a textedit to the child table row, it's not the row that matches the
relation with the parent table.
Pretend it's a Shirt
|
by: Wesley Peace |
last post by:
I hate to cross post, but I've gotten no answer yet on a problem I'm having
with visual studio 2008.
I've created a series of forms with controls to access a Access database
tables. The connection string works fine and the tables are added to the
project without a problem.
When I create the tables they appear to bind and I am able to preview the
data in the database in design mode; however, at runtime no data is
displayed and the...
|
by: Hystou |
last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it.
First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
|
by: Oralloy |
last post by:
Hello folks,
I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>".
The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed.
This is as boiled down as I can make it.
Here is my compilation command:
g++-12 -std=c++20 -Wnarrowing bit_field.cpp
Here is the code in...
| | |
by: jinu1996 |
last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth.
The Art of Business Website Design
Your website is...
|
by: Hystou |
last post by:
Overview:
Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
|
by: tracyyun |
last post by:
Dear forum friends,
With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...
|
by: agi2029 |
last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own....
Now, this would greatly impact the work of software developers. The idea...
|
by: isladogs |
last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM).
In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules.
He will explain when you may want to use classes instead of User Defined Types (UDT). For example, to manage the data in unbound forms.
Adolph will...
|
by: TSSRALBI |
last post by:
Hello
I'm a network technician in training and I need your help.
I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs.
The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols.
I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
| | |
by: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
| |
