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by: Kevin C |
last post by:
I was curious to know what some developers out in the industry are doing when it comes to exposing Data access logic, specifically persistence. This is assuming that your not using an O/R framework or something that completely abstracts you from the persistence details.
Are you:
1. Having simple data type interfaces and the data layer know nothing about the domain models. For example:
public int SaveCustomer( string fname, string...
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by: Terry |
last post by:
I've got a situation where I have a set of data, and later take another
snapshot to obtain a second set of data. There will be one or more
changes in the second set of data and I need to be able to tell which
items were in the first set missing from the second set and which items
were added to the second set.
Can anyone recommend an algorithm for this, or a collection class in C#
that may be of help?
My first inclination is the take...
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by: tshad |
last post by:
Is there a way to carry data that I have already read from the datagrid from
page to page?
I am looking at my Datagrid that I page through and when the user says get
the next page, I have to go to the database to get the next page. Is there
a way to use the dataset to allow us to read back and forth in it instead of
going back to the database to get it?
Thanks,
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by: Siegfried Heintze |
last post by:
I'm using a third party hosting service. I presently have a Web Service on
this hosting service's server that loads and executes a native mode DLL.
This demonstrates that the hosting service has given me proper access to the
temporary directory c:/Windows/Microsoft.NET/Framework/V1.1.4322/Temporary
ASP.NET Files/root/...."
I believe it also demonstrates that I have access to c:/documents and
settings/xyz/aspnet/local settings/
...
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by: Brian Henry |
last post by:
What is the best way to pass a data set between objects? I have a custom
control which will depend on a dataset (kind of like a bound contorl, but im
handleing it differently) is it best to pass as a public variable or a
property? since a property only retrieves By value, and not by reference,
when you send a data set in does it make a copy of it for that object? or
just pass a reference similar to what an array would do in C++. What i need...
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by: Marcin Podle¶ny |
last post by:
Hello!
I use DataGrid which displays data in several columns. Number of columns
depends on user prefferences (I mean: this is still the same query filling
datatable but I use "DataTable.Columns(i).ColumnMapping =
MappingType.Hidden" to hide columns which should be hidden). So, the code I
use every time to fill DataTable and display data in DataGrid looks like:
Private Sub xxxxx(...)
Dim firstTime as Boolean = true
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by: moondaddy |
last post by:
I have a website where cataloge pages are populated by calling a stored
procedure on sql server. I use the sql data adapter's fill method to call
this stored procedure and fill the dataset. about 6 to 15 times a day the
server hangs and times out when this fill method is called. The SP is
simple and uses very little resources (as tested using client statistics in
query analyzer). Here's data from my error log which includes the...
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by: Ben Finney |
last post by:
Howdy all,
Summary: I'm looking for idioms in unit tests for factoring out
repetitive iteration over test data. I explain my current practice,
and why it's unsatisfactory.
When following test-driven development, writing tests and then coding
to satisfy them, I'll start with some of the simple tests for a class.
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by: slinky |
last post by:
I'm getting a error when I open my . aspx in my browser... line 34:
da.Fill(ds, "Assets")
Here's the error and my entire code for this .aspx.vb is below
that ...
I need some clues as to what is causing the error... Thanks!!!
Server Error in '/' Application.
--------------------------------------------------------------------------------
Multiple-step OLE DB operation generated errors. Check each OLE DB
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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: 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: TSSRALBI |
last post by:
Hello
I'm a network technician in training and I need your help.
I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs.
The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols.
I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
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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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