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by: Marty |
last post by:
Hi,
Ok I use the OLEDBConnector and dataset to retrieve data from my Access DB.
I have a problem to read/parse the dataset and I would like to know if I
am using the right object to reach my goal. And I don't want to spend
hours to find out, would you tell me if I'm going in the wrong path?
Private dbConnector As New OleDbConnection
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by: Kaneda |
last post by:
Hello everyone!
I have some weird(?) problems, and I am not quite sure if there are due to
my errors or maybe a limitation in the .Net framework.
I have a ComboBox I need to fill with the content of an untyped DataSet.
This is to be done in the "DropDown" Event (since the dataset is empty at
program start).
If I go with this:
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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 invented to make life easier, to be able to get to
tge Tables and Values with less code, in less time? But with this thing you
need to add a Try-Catch around every statement when using the value, add for
each value a default value in your DataSet (and...
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by: Nick P |
last post by:
I have declared a DataSet Property on by base winform control as
follows:
public DataSet MessageDs
{
get
{
return messageDs;
}
set
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by: localhost |
last post by:
I have a static, thread-safe class with a DataSet as a property.
When the class is instanced into an object, some callers add rows to a
DataTable in the DataSet. Other callers read the DataSet.
When any caller reads the DataSet, I want the object to delete all of
the rows in the DataTable. I think I want to make a custom event but
I don't know where/how to get started. Help?
Thanks.
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by: Ralf Hoeppner |
last post by:
I have a form which contains a property of type System.Data.DataSet.
I assign a DataSet to this property at design-time the forms designer.
When I now check the dataSet property in the property browser the
values are there, but they are not serialized into the formcode.
Property:
public DataSet InputDataSet
{
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by: Oleg Shnayderman |
last post by:
Hi All,
I am very new to C# as well as to SQL. I need to write an application which
is connecting to SQL DB and getting all the user's tables and after create a
dataset for all the tables in the database and create an XML document with
all the info.
The problem is, that I can do this if I know the table name. However, what
if I don't know the table name nor I know how many user's tables in the
particular database.
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by: Spencer H. Prue |
last post by:
Hello!,
I have a using system.web.sessionstate directive one the top of each of two
web pages. On the first page I have the dataadapter, dataconnection, and
dataset (also in the component tray). I have used Session.Add().
Session.Add("dadapter", sqlDataAdapter1);
Session.Add("dset", ds);
On the other page I have used a cast to get at the Session objects that I
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by: Eric |
last post by:
Help! I created a XML schema with a Visual Studio tools. I'm filling a
dataset with a DataAdapter. Before I use the "WriteXml" method to write the
data to a xml file, I want to map the XSD file I created to the dataset so
that when I do use the "WriteXml" method, the generated xml file will be
properly formatted to the schema I created. I did try using the
"ReadXMLSchema" but it didn't work. Please help me!
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by: Monty M. |
last post by:
Hello;
I was wondering if anyone can assist me with this problem. Here are
the tools I am using:
Language: C#
Database: MS SQL Server 2000
Application: Visual Studio 2005
1. I have a table whose primary key is a varchar data type.
|
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, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look !
Part I. Meaning of...
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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 effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it.
First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
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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, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed.
This is as boiled down as I can make it.
Here is my compilation command:
g++-12 -std=c++20 -Wnarrowing bit_field.cpp
Here is the code in...
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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 tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth.
The Art of Business Website Design
Your website is...
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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 Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
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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 protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...
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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, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own....
Now, this would greatly impact the work of software developers. The idea...
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by: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
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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 can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...
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