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: Dursun |
last post by:
Hi,
I am trying to assign NULL to a datetime field in the SQL Server database.
Here is the code that does NOT work:
INSERT INTO ...
....
VALUES ...
....
CType(IIf(dateWitness2Date.Checked,...
|
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: 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: ryjfgjl |
last post by:
In our work, we often receive Excel tables with data in the same format. If we want to analyze these data, it can be difficult to analyze them because the data is spread across multiple Excel files...
|
by: BarryA |
last post by:
What are the essential steps and strategies outlined in the Data Structures and Algorithms (DSA) roadmap for aspiring data scientists? How can individuals effectively utilize this roadmap to progress...
|
by: nemocccc |
last post by:
hello, everyone, I want to develop a software for my android phone for daily needs, any suggestions?
|
by: marktang |
last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However,...
|
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...
|
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,...
|
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...
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