473,704 Members | 2,347 Online
Bytes | Software Development & Data Engineering Community
+ Post

Home Posts Topics Members FAQ

Binding Combobox in Datagrid to ArrayList

I have found a few samples of using a combobox in a Datagrid on the Web
(Windows Forms). While these examples work well for what they do, I need
more functionality, and I'd like some advice on the best way to implement it
(if it hasn't already been implemented, that is)...

Here's my situation:

-I have an ArrayList of Items that need to be bound to the combobox. The
ArrayList contains data like this:

1, Green
3, Yellow
7, Red

-The underlying Datagrid field should display the text value but the numeric
value will actually be written back to the database.

I've been trying to come up with the best way to do this, and so far my
ideas mostly entail adding a property to the class being used to implement
the combobox in datagrid, and setting it to the numeric value of the
selected combobox item. My other option was to load the lookup table values
into Hashtables of the form:

htColor ("Green") = 1
htColor ("Yellow") = 3
htColor ("Red") = 7

And then retrieve the Hashtable values before writing back to the database.
Because of design requirements, the Datagrid is *not* bound to the
Datasource - it is populated via a DataTable generated at run-time.

I just wanted to make sure I was on the right track here, if anyone knows of
this being done somewhere already (I'm sure I'm not the first person to
encounter this), or if I'm way off base with this one and obviously

Nov 21 '05 #1
0 1211

This thread has been closed and replies have been disabled. Please start a new discussion.

Similar topics

by: Rami | last post by:
Hey, I Tried to bind a DataGrid to an ArrayList, and had 2 problems: 1. The DataGrid shows the Length property of the items instead of their text - how can I change that? 2. After binding, I add new elements to the ArrayList but the DataGrid doesnt refresh's it's view - I have to set the DataSource property of the DataGrid to null and then re bind it to the ArrayList! Isnt there a "pretier" way? Thanks ahead
by: kids_pro | last post by:
I created a simple Person class as following: class Person{ private string fname; private string lname; public Person(string fname, string lname){ this.fname = fname; this.lname = lname; }
by: Alex Nitulescu | last post by:
Hi. I'm fighting the following code: __________________________________________________________________________ a. I have a class UserInfo.vb: <Serializable()> Public Class UserInfo Public Username As String Public Password As String Public Email As String End Class
by: Jim Bancroft | last post by:
Hi everyone, I'm binding an ArrayList to a DataGrid for the first time (I'm used to binding DataSets and DataTables) and I was wondering if I could somehow "name" the ArrayList, so that I can refer to it as a DataField in an asp:BoundColumn? In essence, I'm doing this: ArrayList Arr1 = new ArrayList();
by: guy | last post by:
I have a winforms datagrid bound to an arraylist which works correctly, however if I add a row to the arraylist i cannot get the datagrid to display the updated data other than by:- clearing the dg bindings binding the dg to a DIFFERENT arraylist clearing the dg bindings binding the dg to the correct arraylist there must be an easy way, any ideas?
by: Rami | last post by:
Hey, I Tried to bind a DataGrid to an ArrayList, and had 2 problems: 1. The DataGrid shows the Length property of the items instead of their text - how can I change that? 2. After binding, I add new elements to the ArrayList but the DataGrid doesnt refresh's it's view - I have to set the DataSource property of the DataGrid to Nothing and then re bind it to the ArrayList! Isnt there a "pretier" way? Thanks ahead
by: Michael C# | last post by:
I'm binding a Combobox to an Arraylist, and I'd like to set the ValueMember and DisplayMember properties of the Combobox. Is this possible, or do I need to bind to a DataTable? Thanks
by: Jim Shaffer | last post by:
Perhaps I have the wrong construct, or misunderstand arrays in vb (2003).... I've loaded a two-dimensional array (168 by 28) into memory as AcctArray. {Dim AcctArray (500,28) as string...} The AcctArray is loaded from a Quickbooks table, so there's no intrinsic dataset to assign as datasource.... I want to have a combo table (or list table or whatever), currently named cbAccounts, that can scroll through and maybe select items in the...
by: Simon Tamman | last post by:
I've come across an interesting bug. I have workarounds but i'd like to know the root of the problem. I've stripped it down into a short file and hope someone might have an idea about what's going on. It's a simple program that loads a control onto a form and binds "Foo" against a combobox ("SelectedItem") for it's "Bar" property and a datetimepicker ("Value") for it's "DateTime" property. The DateTimePicker.Visible value is set to...
by: marktang | last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look ! Part I. Meaning of...
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: 6302768590 | last post by:
Hai team i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
by: muto222 | last post by:
How can i add a mobile payment intergratation into php mysql website.

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.