by: Programmer |
last post by:
Hi All
Here is my problem
I'm using a SQLDataAdapter and DataSet
I use the method FillSchema(myDataset, SchemaType.Source)
The problem is that when i Check the default Values of the Dataset...
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by: Andreas Palm |
last post by:
I have a dataset that has DBNull in certain columns, now when I write
out this one to XML, I only get the columns as elements that do have
data in it. However I do need also the empty colums as...
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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...
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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...
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by: mjwills |
last post by:
All,
I am using VB.NET 1.0 / 2002. I am having trouble setting a column
default to "" (note that "" is not the same as Null / DBNull / Nothing)
in a typed dataset (to reflect the same database...
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by: vvenk |
last post by:
Hello:
When I try to do the following,
Dim liTemp As System.DBNull
If c.Value Is Nothing Then
newDataTableRow(c.Column.Key) = liTemp
Else
newDataTableRow(c.Column.Key) = c.Value
End If
I...
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by: PeterWellington |
last post by:
I have a column in a data table that stores enum values and assigns a default
value:
Dim dc As New DataColumn("TestEnumField", GetType(DayOfWeek))
dc.DefaultValue = DayOfWeek.Thursday
When I...
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by: Greg P |
last post by:
I'm using VB 2005, and have drug and dropped datagridviews onto my form. The
default code that is generated for inserts tries to insert a value for the
auto generated primary key. Below is the...
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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
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by: Robert Bravery |
last post by:
HI all,
I have a column value returned to a string variable in my c# app. But the
return type is of system.dbnull. How can I convert that to a system.sting
Thanks
Robert
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by: nemocccc |
last post by:
hello, everyone, I want to develop a software for my android phone for daily needs, any suggestions?
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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,...
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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...
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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,...
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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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by: Hystou |
last post by:
Overview:
Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows...
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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...
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by: agi2029 |
last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing,...
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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...
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