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by: mimi |
last post by:
I would like to convert an arraylist to dataset or datatable so that I can
filter or make a select distinct from it. How to do it? Can someone show
me the syntax? Thanks
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by: George |
last post by:
I am wondering what is the cost of using DataTable.
Lets say i have 1000 Employee records. The object oriented purist will require the Data Layer to return an ArrayList with 1000 Employee objects.
But very often we (at least i) returning DataTable to populate the grid.
But now i am wondering: Am i gaining anything?
The DataTable has to create object DataRow for each row. Versus i am creating Employee object for each row.
So unless...
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by: gane kol |
last post by:
Hi,
I have a code that creates a datatable from an arraylist, but i am getting
an error in casting in
for (int intRow = 0; intRow < alLCPlist.Count; intRow++)
{
DataRow drow = dtLCPack.NewRow();
int intColCount = dtLCPack.Columns.Count;
ArrayList arrlRow = (ArrayList)alLCPlist; <== Specified cast
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by: Joseph |
last post by:
Hi all,
I know that you can convert a Dataset into an Arraylist, I was wondering if
it is possible to do the opposite - Convert an Arraylist to a Dataset? If so,
how do you do this? An example of this would be much appreciated. Thanks
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by: David |
last post by:
Hi all,
I am following this code...
http://www.devarticles.com/c/a/C-Sharp/Interface-IEnumerable-and-IEnumerator-in-C-sharp/2/
I have come to the part with public Customers(). I am assuming this is a
constructor (as it is the same name as the class).
In here, it says Get all customer ids from the database and put into an
arraylist. However, the code is for enumeration. To me, all data from a
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by: =?Utf-8?B?cm9nZXJfMjc=?= |
last post by:
hey, I have a datatable here, but I need to make it into a string array. how
do I do that?
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by: =?Utf-8?B?YmFzdWxhc3o=?= |
last post by:
Hi;
I want to store a datatable (or an arraylist) as a session variable but when
I try;
Session = al_RecNo;
I get an error that;
"Cannot implicitly convert type 'System.Collections.ArrayList' to 'string'"
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by: StinkyDuck |
last post by:
I'm trying to determine which type of collection to use, DataTable or
ArrayList. I understand that an ArrayList can be linked to databound
objects if it contains the IList interface.
Is there a recommendation to use one over the other. If you are not going
to bind the collection to any objects should an ArrayList be used? Is there
a benefit on size? If I have a 200,000 rows of data, should a DataTable be
used in this case?
Any...
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by: Mr. Arnold |
last post by:
I am working a C# project that uses what's in the subject. I kind of have
the basics down on reading the table data. I don't use the above methods of
data access or persistence, but I am stuck with using this them in this
project.
I have selected rows based on selection criteria and the rows/records are
held in an ArrayList, so I can work with those rows/records, as the user
makes a selection to work with the data on the screen from a...
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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: 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: 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: 6302768590 |
last post by:
Hai team
i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
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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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