473,503 Members | 1,136 Online
Bytes | Software Development & Data Engineering Community
+ Post

Home Posts Topics Members FAQ

column null

hi,
how do i chk if a column in my dataset is null?
Nov 16 '05 #1
1 932
Jax
foreach(DataRow dr in dataTable1)
{
if(dr["SomeColumn"] == DBNull.Value)
{
MessageBox.Show("Found a null entry in someColumn!")
}
}
Nov 16 '05 #2

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

Similar topics

4
5326
by: R. Santiago | last post by:
I have a table cc_rd_user_questions with the following columns: NUM NUMBER (25) DEFAULT 1 NOT NULL, COMPANY_ID NUMBER (15) NOT NULL, PROJ_ID NUMBER (15) NOT NULL, SEQ ...
1
11495
by: Lannsjo | last post by:
I need to change my primary key column type from smallint to int. I have tried: ALTER TABLE livegroup MODIFY id INT UNSIGNED NOT NULL AUTO_INCREMENT; But get an error message certainly since my...
2
21339
by: me | last post by:
I would like to add an Identity to an existing column in a table using a stored procedure then add records to the table and then remove the identity after the records have been added or something...
1
3280
by: Danny | last post by:
I'm trying to simply change a column definition from Null to Not Null. It's a multi million row table. I've already checked to make sure there are no nulls for any rows and a default has been...
8
11577
by: pb648174 | last post by:
I have a single update statement that updates the same column multiple times in the same update statement. Basically i have a column that looks like .1.2.3.4. which are id references that need to...
7
7038
by: Douglas Buchanan | last post by:
I cannot access certain column values of a list box using code. I have a list box 'lstPrv' populated by the query below. SELECT tblPrv.fkPrvID, lkpCat.CatNm, lkpSrv.SrvNm, lkpCat.pkCatID,...
2
23874
by: Joe | last post by:
Hi All, I am new to using the Access DB and I need some help if someone is able to give it to me. What I want to do is get the names of the columns of certain tables. Not the data in the table...
4
10051
by: Brian Brane | last post by:
I have properties that wrap DataRow columns as in: public int aNumber { get{ return m_DataRow; } set{ m_DataRow = value; } } If the column happens to contain DBNull, I get a cast exception...
2
31433
by: RamaKrishna Narla | last post by:
In MS SQL Server, I have the following tables with some data in it. create table table1 ( column1 varchar(32), column2 int not null, column10 varchar(255), ..... primary key (column1,...
6
14385
by: axelsino | last post by:
I know this has been asked before and yes, I have read the section in the documentation about it. But, my question is: If I have setup mysql with strict_trans_tables, will MySQL allow "null"...
0
7089
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...
0
7282
Oralloy
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,...
0
7339
jinu1996
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...
0
7463
tracyyun
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...
1
5017
isladogs
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...
0
4678
by: conductexam | last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and...
0
3157
by: adsilva | last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
1
738
muto222
by: muto222 | last post by:
How can i add a mobile payment intergratation into php mysql website.
0
389
bsmnconsultancy
by: bsmnconsultancy | last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence...

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.