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by: theWizK |
last post by:
Hello all.
I have noticed that when I generate a strongly-typed dataset from an xml
schema that the DataTables that are generated have their constructors marked
as internal. What this means is when I try to instantiate one of the
strongly-typed tables from this dataset from a different assembly, I cannot.
Let me provide examples...
If I have a simple dataset like this:
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by: Brian Blais |
last post by:
Hello,
I saw on a couple of recent posts people saying that casting the return
value of malloc is bad, like:
d=(double *) malloc(50*sizeof(double));
why is this bad? I had always thought (perhaps mistakenly) that the
purpose of a void pointer was to cast into a legitimate date type. Is
this wrong? Why, and what is considered to be correct form?
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by: Mountain Bikn' Guy |
last post by:
When one gets a row from a database (ie, a DataTable), the row contains a
typed value in each column. How is this typically implemented behind scenes.
I want to build this functionality myself. The reason I want to do this is
because I need an in-memory table without any of the overhead of a DataSet
or DataTable.
Thanks!
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by: Rakesh Rajan |
last post by:
Hi,
I have a method, which opens a connection, creates an untyped datable, fills it and returns it back.
I have defined a typed datatable in my application as well. For some reasons, I have to call the above mentioned method to get data. Unfortunately, as it returns an untyped datatable, I can't assign my typed datatable variable this value (a base type can't be converted into a sub type automatically).
Without resorting to looping thru...
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by: Ersin Gençtürk |
last post by:
I have 2 typed data tables inherited from the same dataset schema
One called : table A with an identity column x
column x is constrained to be unique.
Other one is : table B with an identity column x
There are some rows in table A and table B.
When I want to add a row from table A to table B I use the function
TableA.ImportRow(TableB.rows); // for example
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by: Magnus |
last post by:
I would like to filter data in a typed datatable, while maintaining strong
type references.
The typed dataset/datatable is generated using vs2005 xsd.exe tool from a
xml schema definition file.
I don't understand how this is possible when its the dataview that is being
used to filter.
To filter I have to get the "defaultview" from the datatable, and the
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by: S. Lorétan |
last post by:
Hi guys,
Sorry for this stupid question, but I don't know why it isn't working.
Here is my (example) code:
namespace Test {
class A {
public string Label1;
}
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by: |
last post by:
I'm querying Index Server to return search results, both regular properties
and some custom properties I've created. Index Server has this preference
for thinking about information as strings rather than datatypes.If you
really work at it, you can configure Index Server to treat the data as, say,
sortable DateTime datatypes, or integer datatypes. But I'm finding this a
huge pain in the butt, and it bothers me that I'm attaching a bunch of...
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by: Joseph Geretz |
last post by:
I'm a bit puzzled by the current recommendation not to send Datasets or
Datatables between application tiers.
http://support.microsoft.com/kb/306134
http://msdn2.microsoft.com/en-us/library/ms996381.aspx
Formerly, with classic Microsoft DNA architecture, the ADO Recordset was a
primary transport medium, recommended for transmitting data between
application tiers. In fact, there are whole books written on the subject.
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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, 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: 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: 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: 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 presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules.
He will explain when you may want to use classes instead of User Defined Types (UDT). For example, to manage the data in unbound forms.
Adolph will...
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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 then checking html paragraph one by one.
At the time of converting from word file to html my equations which are in the word document file was convert into image.
Globals.ThisAddIn.Application.ActiveDocument.Select();...
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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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