Solved

VB.NET checked List Box validation

Posted on 2003-12-04
3
335 Views
Last Modified: 2008-03-17
I am writing a simple data entry form and want to use the checked list box. Each box may have more than 2 items in the collection but only one should be selectable at a time. This value should also update the bound SQL server field with the name of the item selected from the collection. I need help with the syntax to make this happen!

what I have so far:

Private Sub clbDeadorAlive_ItemCheck(ByVal sender As Object, ByVal e As System.Windows.Forms.ItemCheckEventArgs) Handles clbDeadorAlive.ItemCheck

End Sub

Dead or Alive being the items in the collection, There are also CLB's with 4 or more items in the collection.

0
Comment
Question by:Dalexan
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
3 Comments
 
LVL 28

Expert Comment

by:mmarinov
ID: 9881169
Why don't you use RadioButtonList
if you choose that the only thing that you will have to do is to check if the an item of this list is selected
this could be done by two ways
use RequireFieldValidator and set it's property ControlToValidate to this list
you can write your own validator in your page_load

B..G
0
 

Author Comment

by:Dalexan
ID: 9885829
Can you type out the syntax for the RadioButtonList control.
0
 
LVL 28

Accepted Solution

by:
mmarinov earned 125 total points
ID: 9887349
if you will bind the radiobuttonlist from your code behind

Dim rbList as RadiobuttonList
rbList.DataSource = yourdataset
rbListDataTextField = yourcolumnfromyourdataset
rbListDataValueField = yourcolumnfromyourdataset
rbList.DataBind()

this will bind a dataset to your radiobuttonlist

the add to your form
Dim reqValid as RequiredFieldValidator
reqValid.ControlToValidate = rbList;
reqValid.EnableClientScript = True

this will give you that if you not select an item from the radiobuttonlist the form will not be submited

if you will add these controls in design mode
from the tool box drag and drop Radiobuttonlist object to your form
in Properties window of this web control define DataSource , rbListDataTextField and rbListDataValueField

after that drag and drop RequiredFieldValidator web control and in the properties window set ControlToValidate to the radiobuttonlist id

B..G
0

Featured Post

SharePoint Admin?

Enable Your Employees To Focus On The Core With Intuitive Onscreen Guidance That is With You At The Moment of Need.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

IP addresses can be stored in a database in any of several ways.  These ways may vary based on the volume of the data.  I was dealing with quite a large amount of data for user authentication purpose, and needed a way to minimize the storage.   …
Many of us here at EE write code. Many of us write exceptional code; just as many of us write exception-prone code. As we all should know, exceptions are a mechanism for handling errors which are typically out of our control. From database errors, t…
Monitoring a network: why having a policy is the best policy? Michael Kulchisky, MCSE, MCSA, MCP, VTSP, VSP, CCSP outlines the enormous benefits of having a policy-based approach when monitoring medium and large networks. Software utilized in this v…
In this video you will find out how to export Office 365 mailboxes using the built in eDiscovery tool. Bear in mind that although this method might be useful in some cases, using PST files as Office 365 backup is troublesome in a long run (more on t…

623 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question