473,320 Members | 1,859 Online
Bytes | Software Development & Data Engineering Community
Post Job

Home Posts Topics Members FAQ

Join Bytes to post your question to a community of 473,320 software developers and data experts.

Combobox & null

Hi,
I need to check if combobox is empty, so I write:

if combobox = null then msgbox "..."

but it doesn't work. In debug mode, combobox is null.
Please help!

Deli
Nov 13 '05 #1
2 3224
try this

if nz(combobox, "") = "" then
this means if the combobox is null or a zerolength string (""). If you do
not care about the zerolength string then try

if isnull(combobox) then

BTW, in code, combobox should probably be replaced by

me.controls("name of your control")

or in the property sheet: [name of the control]
Let me know how you get on.

- Nicolaas

Nov 13 '05 #2
> [...]
if isnull(combobox) then
[...]


Thanks! It works!

--
Deli
Nov 13 '05 #3

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

Similar topics

3
by: PeterZ | last post by:
G'day, After doing much searching and pinching bits of ideas from here there and everywhere I came up with a fairly 'clean' solution of including a comboBox into a dataGrid column. You can...
0
by: dbuchanan | last post by:
ComboBox databindng Problem == How the ComboBox is setup and used: My comboBox is populated by a lookup table. The ValueMember is the lookup table's Id and the DisplayMember is the text from a...
30
by: dbuchanan | last post by:
ComboBox databindng Problem == How the ComboBox is setup and used: My comboBox is populated by a lookup table. The ValueMember is the lookup table's Id and the DisplayMember is the text from a...
1
by: Andrus | last post by:
I need to enter null value from combobox to business object property. My combobox datasource does not contain ValueMember with null value. So I tried to create combobox which stores null to bound...
0
by: DolphinDB | last post by:
Tired of spending countless mintues downsampling your data? Look no further! In this article, you’ll learn how to efficiently downsample 6.48 billion high-frequency records to 61 million...
0
isladogs
by: isladogs | last post by:
The next Access Europe meeting will be on Wednesday 6 Mar 2024 starting at 18:00 UK time (6PM UTC) and finishing at about 19:15 (7.15PM). In this month's session, we are pleased to welcome back...
1
isladogs
by: isladogs | last post by:
The next Access Europe meeting will be on Wednesday 6 Mar 2024 starting at 18:00 UK time (6PM UTC) and finishing at about 19:15 (7.15PM). In this month's session, we are pleased to welcome back...
0
by: Vimpel783 | last post by:
Hello! Guys, I found this code on the Internet, but I need to modify it a little. It works well, the problem is this: Data is sent from only one cell, in this case B5, but it is necessary that data...
0
by: ArrayDB | last post by:
The error message I've encountered is; ERROR:root:Error generating model response: exception: access violation writing 0x0000000000005140, which seems to be indicative of an access violation...
0
by: CloudSolutions | last post by:
Introduction: For many beginners and individual users, requiring a credit card and email registration may pose a barrier when starting to use cloud servers. However, some cloud server providers now...
1
by: Shællîpôpï 09 | last post by:
If u are using a keypad phone, how do u turn on JavaScript, to access features like WhatsApp, Facebook, Instagram....
0
by: af34tf | last post by:
Hi Guys, I have a domain whose name is BytesLimited.com, and I want to sell it. Does anyone know about platforms that allow me to list my domain in auction for free. Thank you
0
by: Faith0G | last post by:
I am starting a new it consulting business and it's been a while since I setup a new website. Is wordpress still the best web based software for hosting a 5 page website? The webpages will be...

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.