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by: William Ryan |
last post by:
At the risk of sounding like a Big 5 consultant, "It
depends".
1) Strongly typed datasets rock, they are faster than
untyped, use intellisense... but your reason for
wanting to use them is important. I use them every day
of my life, but I also don't use them every day of my
life and there are reasons for both.
2) How much of your process is dependent on reads vs.
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by: Jade |
last post by:
Hi,
I just wanted to ask a quick question regarding datasets.
I am creating 3 tables using a dataadapter. what i want
to know is that is the relationship created between these
datatables automatically?? Will the integrity rules
automatically be enforced or do i need to recode this in
vb.net?
Also do the datatables created have the same schema as my
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by: Z D |
last post by:
Hello,
I'm currently using Remoting (HTTP/Binary) to remote a simple object.
Everything is working fine except for one function that returns an arraylist
of datatables.
When I call this function, nothing is returned (ie length of array =0).
However, if I comment out my config file so that the DLL is run locally
instead of remoting it, everything works fine!!
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by: DraguVaso |
last post by:
Hi,
I have two DataTables (our DataViews or whatever that will suit the best for
the solution). I want to merge these two DataTables the fastest as possible,
but they have to be merged one table after the others: First all the recors
of DataTable1, and afterwarths the records of DataTable2.
Does anybody has any idea how to do this? The purpose it that it goes as
fast as possible! DataTable2 can have up to 15.000 records, DataTable1...
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by: John Dalberg |
last post by:
I noticed the starterkits timetracker & issue tracker load data from a
database into custom collections (arraylists) which bind to a datagrid.
What are the advantages of using custom collections over simpler objects
like datareaders or datatables?
John Dalberg
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by: Frank |
last post by:
Hello All,
I am working on a vb.net app where I need to compare to 2 datatables
and determine if a string exists in one or both. The first dt is
filled from the db. A form is loaded and the appropriate items in a
checkedlist box are selected based on the dt. So far, no problem. Then
user can then edit the values in the checkedlist box and choose to
save changes. When they save changes, I throw the new values of the
checked items from...
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by: cj |
last post by:
I've used datatables and datasets before. Datasets being able to hold
more than one table and datatables being only one table. My mind keeps
coming up with recordsets. I can't remember how they fit into the picture.
I'm going to be reading some records from a table in a sql db.
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by: Sam Shrefler |
last post by:
Is there any code part of the .NET Framework or any suggestions at the
best way to handle the following situation?
Results from SQL Select statement:
MeasureDate | Name | Width | Height
01/01/07 | Flower | 10 | 10
01/01/07 | Tree | 11 | 11
01/01/07 | Bush | 12 | 12
02/01/07 | Flower | 11 | 10
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by: Anil Gupte |
last post by:
How can I manipulate Datasets, such as getting a specific row based on a key
column value. Of course, I could loop through all the rows in the entire
dataset each time I needed something, but is there an easier way? I want to
be able to execute the equivalent of SQL statements including insert, delete
etc.
Any ideas? Thanx,
--
Anil Gupte
www.keeninc.net
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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: 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: 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: 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: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
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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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