Still celebrating National IT Professionals Day with 3 months of free Premium Membership. Use Code ITDAY17

x
?
Solved

CheckBox - How do I show my Three State checkbox to show the NULL state as a string value?

Posted on 2008-06-20
2
Medium Priority
?
397 Views
Last Modified: 2011-10-03
I want to use a checkbox that informs the user that the NULL value is "Unknown". I know the code to show that "Yes" if the checkbox is true & "No" if false but how would I code the NULL value in my table to show "Unknown"? Is this possible? I am using a Visual Basic form and SQL database. The datatype is set to a BIT.
Private Sub LicenceAgreeCheckBox_CheckedChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles CheckBox.CheckedChanged
        If CheckBox.Checked = True Then
            CheckBox.Text = "Yes"
        Else
            CheckBox.Text = "No"
        End If
    End Sub

Open in new window

0
Comment
Question by:teustace
[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 Comments
 
LVL 18

Accepted Solution

by:
jcoehoorn earned 200 total points
ID: 21830678
Use the CheckState property:
Private Sub LicenceAgreeCheckBox_CheckedChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles CheckBox.CheckedChanged
    Select Case CheckBox.CheckState
        Case CheckState.Checked
            CheckBox.Checked = "True"
        Case CheckState.Indeterminate
            CheckBox.Checked = "Unknown"
        Case CheckState.Unchecked
            CheckBox.Checked = "False"
    End Select
End Sub

Open in new window

0
 

Author Closing Comment

by:teustace
ID: 31469115
Hi Jcoehoorn, Many thanks! Works a treat and I can use this for other things....
0

Featured Post

Free Tool: SSL Checker

Scans your site and returns information about your SSL implementation and certificate. Helpful for debugging and validating your SSL configuration.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

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

Introduction Hi all and welcome to my first article on Experts Exchange. A while ago, someone asked me if i could do some tutorials on object oriented programming. I decided to do them on C#. Now you may ask me, why's that? Well, one of the re…
Calculating holidays and working days is a function that is often needed yet it is not one found within the Framework. This article presents one approach to building a working-day calculator for use in .NET.
Learn how to match and substitute tagged data using PHP regular expressions. Demonstrated on Windows 7, but also applies to other operating systems. Demonstrated technique applies to PHP (all versions) and Firefox, but very similar techniques will w…
Explain concepts important to validation of email addresses with regular expressions. Applies to most languages/tools that uses regular expressions. Consider email address RFCs: Look at HTML5 form input element (with type=email) regex pattern: T…
Suggested Courses

715 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