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by: Kevin Vogt |
last post by:
When initially loaded, my web application (below) takes ~120000 milliseconds
to open its connection. But repeated executions take 0 milliseconds each.
But when I wait for approx. 5 minutes and try again, it takes another 120000
milliseconds for Open(). This behavior gets really irritating with the real
web application that I'm working on.
But the thing I don't understand is, when I make a console app that does the
same sort of thing, the...
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by: Mojtaba Faridzad |
last post by:
Hi,
I am newbie in C# and I am trying to design my first database program and I
am trying to find the best solution. The database is MySQL.
how do you open your connection in a big application? as I know, I should
open a connection, set the dataset and close the connection. I should open
the connection in "try" block and close the connection in "finally" block.
is that right? I can write a service to pass the query and retreive the...
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by: Macca |
last post by:
Hi,
I have an windows forms application that accesses a SQL database
I have a few questions as to connecting to the database.
This application will run 24 hours a day. It is a monitoring application and
will store events that happen in the database (These events happen randomly
without pattern, between 10-50 a day) .
There are a number of situations where the database is accessed.
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by: mescano |
last post by:
I am currently implementing a singleton pattern for accessing a
database. Is it advisable to close the connection to the database at
all -- thus leaving it open or should it be closed. If closed, when
should I it close it -- after the execution of the each command to the
database? If leaving open, what impacts does it have. Imagining that
it is one connection to the database.
Thanks,
mescano
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by: Bryce K. Nielsen |
last post by:
Suddenly this week, I've started getting this error message:
System.Data.SqlClient.SqlConnection(GetOpenConnection)ExecuteNonQuery
requires an open and available Connection. The connection's current state is
connecting.
I'm very puzzled since I'm not calling "ExecuteNonQuery" and I am calling
"Open", which I've always assumed was Synchronous, i.e. would not return
until either A) the connection was open or B) there was an error. Here...
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by: martin1 |
last post by:
All, I want to check wether db connection/open or not, if not it will post db
connection error to user in message box
The code is like:
Dim objConnection As New SqlConnection _
("Server=server1; database=db1;user
id=user1;password=whatever")
Dim objDataAdapter As New SqlDataAdapter()
Dim objDataSet
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by: Imran Aziz |
last post by:
Hello All,
Like in C++ I tried to use constructor to open a database connection and
distructor to close the database connection, it now turns out that one
cannot create distrutors in C# classes.
Here is my code
public class DBLayer
{
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by: fniles |
last post by:
I am using VB.Net 2003 and MS Access (connecting using OleDBConnection).
I read using DataAdapter and DataSet, not DataReader.
When many people try to access the database at the same time, I get the
error "ExecuteReader requires an open and available Connection. The
connection's current state is Open, Executing." I do not use ExecuteReader,
why the error says ExecuteReader. What does it mean ?
When I get this error, is there a way for me...
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by: Usman Jamil |
last post by:
Hi
I've a class that creates a connection to a database, gets and loop on a
dataset given a query and then close the connection. When I use netstat
viewer to see if there is any connection open left, I always see that there
are 2 connections open and in "ESTABLISHED" state. Here is the piece of code
that I'm using, please tell where I'm doing it wrong. Since this class is
being used at many placed in my actual web based application that...
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by: =?Utf-8?B?RyBIdXN0aXM=?= |
last post by:
I am creating a new MS Access DB in code, which works fine. I then try to
open it & set a password. I keep getting an error that the DB is already open
by my machine's Admin account. In reality it is not actually open.
Here is a look at my code for creating & then setting the Password.
Dim ADOXcat As New ADOX.Catalog
sCreateString = "Provider=" & Provider & ";Data Source=" & DatabaseFullPath
Try
ADOXcat.Create(sCreateString)
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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: 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: 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: 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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