by: DraguVaso |
last post by:
Hi,
Something I don't understand about a Typed DataSet: When a value in the
DataSet is DBNull, it throws this error: "Cannot get value because it is
DBNull".
But aren't Typed DataSets...
|
by: Michael Culley |
last post by:
Which is better:
SomeValue is DBNull
or
SomeValue == DBNull.Value
Thanks,
Michael Culley
|
by: Patrick.O.Ige |
last post by:
When i try and use this (Where Unit is a column in my Table):-
If Unit Is DBNull.Value Then
Return "1"
Else
Return "2"
End If
I always have 2 returned! Even when Unit is NULL!
I want a...
|
by: Tina |
last post by:
I have instantiated an insertRow for a dataset. I now want to make the
GLCode DBNull.
I have tried:
insertRow.GLCode = Convert.dbnull
insertRow.GLCode = Convert.dbnull(insertRow.GLCode)
and...
|
by: fredda054 |
last post by:
Hi everybody !
I have a little repeater/hyperlink issue I'm not sure how to solve.
I use a repeater to list subjects available at a specific school.
The datasource of this repeater is a...
|
by: MattB |
last post by:
Hello. I have a vb.net (asp.net) application that uses ado.net datasets.
At one point, I need to check a text field in a DataTable to see if there's
any text in it before performing text operations...
|
by: Bob |
last post by:
I'm sure there's a good reason, I just haven't been able to think of it -
why didn't MS allow "DBNull" values to simply be a null (Nothing)?
Bob
|
by: tshad |
last post by:
I have a value coming from my Object (or it could also be from a
SqlDbReader) where I need to test for DBNull and 0.
I tried to do it in one call:
if (not (newPosition.ReportsTo is...
|
by: cj |
last post by:
in the command window I get:
? result
{System.DBNull}
: {System.DBNull}
I need to check for this in code. I then tested in the command window
if result = system.DBNull
'DBNull' is a type...
|
by: Dave |
last post by:
If Iwant to check if dataset1.SelectQuery1.column1 ==
System.DBNull.Value. How do I do this? What I wrote above will give an error.
--
L. A. Jones
|
by: taylorcarr |
last post by:
A Canon printer is a smart device known for being advanced, efficient, and reliable. It is designed for home, office, and hybrid workspace use and can also be used for a variety of purposes. However,...
|
by: Charles Arthur |
last post by:
How do i turn on java script on a villaon, callus and itel keypad mobile phone
|
by: aa123db |
last post by:
Variable and constants
Use var or let for variables and const fror constants.
Var foo ='bar';
Let foo ='bar';const baz ='bar';
Functions
function $name$ ($parameters$) {
}
...
|
by: ryjfgjl |
last post by:
If we have dozens or hundreds of excel to import into the database, if we use the excel import function provided by database editors such as navicat, it will be extremely tedious and time-consuming...
|
by: emmanuelkatto |
last post by:
Hi All, I am Emmanuel katto from Uganda. I want to ask what challenges you've faced while migrating a website to cloud.
Please let me know.
Thanks!
Emmanuel
|
by: nemocccc |
last post by:
hello, everyone, I want to develop a software for my android phone for daily needs, any suggestions?
|
by: Sonnysonu |
last post by:
This is the data of csv file
1 2 3
1 2 3
1 2 3
1 2 3
2 3
2 3
3
the lengths should be different i have to store the data by column-wise with in the specific length.
suppose the i have to...
|
by: Hystou |
last post by:
There are some requirements for setting up RAID:
1. The motherboard and BIOS support RAID configuration.
2. The motherboard has 2 or more available SATA protocol SSD/HDD slots (including MSATA, M.2...
|
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,...
|
