SQL Server :: Close DB Connection Upon Application Termination?
Nov 19, 2010
The reason this question came up, is because if I run my website application with a SQL Server data store, and I terminate the browser (terminating the session), I try to open up SSMS to edit the DB. But I can't access the database because I believe there is still an open connection, even after application termination.
Is it recommended to close the database connection upon session/application closing? Or am I way off on what I'm thinking could be the problem?
View 15 Replies
Similar Messages:
Jun 27, 2011
If a user clicked on a button, which runs a one minute process that MUST stay connected to the file (through the use of FileStream) for writing purpose, and he/she accidentally closed the browser. Currently, when that happens, if the user clicks on the button again, it will return an exception saying that the file is still being used. The part where I write to the file, the code for that is in a class library, which has a destructor (or finalizer, whichever), which calls a Dispose() method. It would usually take about 20 seconds before the file is free again to be used, but is there a way to make it quicker?
I'm thinking the way I'm designing my web app is not the conventional way. How do most people avoid this situation (ie. accidentally closing browser) where a file/resources are not freed up? Do they write into a SQL server instead of a flat file?
View 4 Replies
Feb 28, 2011
I have a page where I load a couple of dropdown lists from the database (DB). I do this by calling a general function that connects to the DB and gets the data to the dropdownlist. This means that I can have three queries to the DB while rendering one page.
should I close and dispose the sqlconnection, sqlcommand and sqldatareader at the end of this function?
Would it be faster if I left it open for the next call, if you get what I mean, or is it best to close and dispose it every time?
View 6 Replies
Mar 23, 2011
When should i open and close the database connection.and which are best data classes (for e.g dataset, datatable etc) should i use when connection is open or close.
View 3 Replies
May 9, 2010
we are using WCF web service. My job is to create the client WCF service.
Sample 1
try
{
Serviceclient client = new Serviceclient();
client.GetOrders();
[code]...
Which the best place to close the connection. Is it in Server side or Client side?
View 2 Replies
Mar 30, 2011
Our site was under Slow HTTP POST DOS attack recently. It's when your server receives a lot of incoming connections and keep them for long time because the sender sends information very slow and server cant serve real users' request - denial of service.
So I decied to reject such POST requests:
void Application_BeginRequest(object sender, EventArgs e)
{
if ( _my_condition_here_ )
{
_reject_the_request_by_dropping_connection_
}
}
The problem is that I can't drop the HTTP connection in asp.net:
Response.End(), throw new Exception(), even Thread.CurrentThread.Abort()
don't close the connection. It waits while sender sends all the fake data, then answer to it with '500 server error' or something. The slow POST attack still will be successful in this case.
How can I just drop the connection?
View 3 Replies
Dec 17, 2010
How to close connection in web.config?
View 5 Replies
Sep 20, 2010
I have a C# web service where I need to access a MS SQL DB. I see a way of creating a connection string in IIS and using it in the web application when connecting to the DB. In IIS in Connection strings you specify the name of the connection, server, user n pwd How can I use the name of connection string created in IIS in my c# app.? I am currently using
CustomerInfo
customerinfo = new
CustomerInfo();
// to return
using
(SqlConnection
connection = new
SqlConnection("server=servername;
initial Catalog=eostartest; Integrated Security=SSPI"))
{...
But I would like to use the name of the connection string created in IIS Connection Strings manager. Do I have to add something in the web.config as well?
View 2 Replies
Nov 25, 2010
how to use global asax to close the opened connection when user logout from the application?
View 9 Replies
May 4, 2010
When I'm using this to open Connection to DB,
Do I need to Close it at the end?
Or by using it, it close by itself?
using (SqlConnection cnn = new SqlConnection(connectionInfo))
View 2 Replies
Mar 4, 2011
I made a site www.hediyelikdukkani.com and I added the site to goole from web masters tools. But google doesn't index my web site. When I test my site how the google see from Test like a Google bot from web masters tools it says that
[Code]....
View 3 Replies
Nov 9, 2010
does DbCommand.Dispose() automatially close the database connection?
Here is my code:
Database db = DatabaseFactory.CreateDatabase("DBIS");
string sqlCommand = "procUIBillingAdjustmentsCreditInvoicedSegment";
DbCommand dbCommand = db.GetStoredProcCommand(sqlCommand);
DataSet ds = new DataSet();
[Code]....
View 4 Replies
Oct 4, 2010
I am using a adapted version ofhttp://www.mikesdotnetting.com/Article/45/Programmatically-accessing-data-from-DataSource-controlsDon't we need something like a closing-routine / close connection command after getting data from the database?If yes: What is the correct closing command?
View 2 Replies
Feb 26, 2010
I am using ASP.NET 2.0 and SQL Server 2005. I am new in web parts.I used simple calender control in web part zone it is showing an error.web part manager is also in web page.
I did not use any database connection .
Server Error in '/Webparts' Application.
--------------------------------------------------------------------------------
An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
SQLExpress database file auto-creation error:
The connection string specifies a local Sql Server Express instance using a database location within the applications App_Data directory. The provider attempted to automatically create the application services database because the provider determined that the database does not exist. The following configuration requirements are necessary to successfully check for existence of the application services database and automatically create the application services database:
If the applications App_Data directory does not already exist, the web server account must have read and write access to the applications directory. This is necessary because the web server account will automatically create the App_Data directory if it does not already exist.
If the applications App_Data directory already exists, the web server account only requires read and write access to the applications App_Data directory. This is necessary because the web server account will attempt to verify that the Sql Server Express database already exists within the applications App_Data directory. Revoking read access on the App_Data directory from the web server account will prevent the provider from correctly determining if the Sql Server Express database already exists. This will cause an error when the provider attempts to create a duplicate of an already existing database. Write access is required because the web server accounts credentials are used when creating the new database.
Sql Server Express must be installed on the machine. The process identity for the web server account must have a local user profile. See the readme document for details on how to create a local user profile for both machine and domain accounts.
View 2 Replies
Aug 18, 2010
[Code]....
I can check whether username exists or not successfully but not for email. any ideas why it isn't working? Error message was that i did not close my connection. using System;
View 1 Replies
Mar 23, 2010
Is it mandatory to close database connection in enterprise library 4.1?
View 1 Replies
Nov 23, 2010
I just installed sql server 2008 R2 on my computer. I am trying to connect to sql server throught my C# code and everytime I run the C# program,
I get this error "A network-related or instance-specific error occurred while establishing a connection to SQL Server.
The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server) "
The connection string that I used in my web.config file is
[Code]....
I am not sure what am I doing wrong, but I followed this article below step by step and still I am getting the same error
http://blog.sqlauthority.com/2009/05/21/sql-server-fix-error-provider-named-pipes-provider-error-40-could-not-open-a-connection-to-sql-server-microsoft-sql-server-error/
My instance name is MSSQLSERVER and the server that I am using is on my local machine and it has my computer name in it.
View 10 Replies
Feb 15, 2010
THE CODE:
Session["foo"] = "bar";
Response.Redirect("foo.aspx");
THE PROBLEM:
When foo.aspx reads "foo" from the session, it's not there. The session is there, but there's no value for "foo".
I've observed this intermittently in our production environment. But I don't mean here to ask a question about Response.Redirect().
THE EXPLANATION:
Bertrand Le Roy explains (the bolding is mine): Now, what Redirect does is to send a special header to the client so that it asks the server for a different page than the one it was waiting for. Server-side, after sending this header, Redirect ends the response. This is a very violent thing to do. Response.End actually stops the execution of the page wherever it is using a ThreadAbortException. What
happens really here is that the session token gets lost in the battle. My takeaway there is that Response.Redirect() can be heavy-handed
with ending threads. And that can threaten my session writes if they occur too near that heavy-handedness.
THE QUESTION:
What about ASP.NET session management makes it so vulnerable to this? The Response.Redirect() line of code doesn't begin its execution until the session write line is "finished" -- how can it be such a threat to my session write? What about the session write doesn't "finish" before the next line of code executes? Are there other scenarios in which session writes are similarly (as though they never occurred) lost?
View 3 Replies
Mar 25, 2011
In my web application, I use an exit button which runs session.abandon to close the session and then close the browser. It does not work with multi-tabs in IE. If I open my application in two tabs, I click on the exit button in one tab which abandons the session and close the tab. But the application in another tab can still work. Is there any way to close the session for this application in all the tabs?
View 3 Replies
Sep 30, 2010
I have VS 2010 professional. I am trying to open "ASP.Net Configuration" through Project -> ASP.Net Configuration.
It pops up the Notification about the ASP.Net Development Server localhost but doesn't open ASP.Net Configuration in the default browser.I clicked on the Root Url (by double clicking on the 'development server' at the right bottom from Notification Manager).
It throws following error
"An error was encountered. Please return to the previous page and try again."
Clicking on "How do i use this tool".It opened page with error.
Tool Has Timed Out
View 2 Replies
Nov 2, 2010
I have developed a web application which downloads files from FTP server. I want to run this application every day at 09:00 and automatically closed when the job is done.
I tried javascripts "window.close, self.close etc" but couldn't workd.
It is worth mentioning that the website is hosted on Windows Server 2003.
View 4 Replies
Oct 20, 2010
I want log4net to write to my ADO log immediately but it doesn't seem to do it until the application exists, how can I remedy this?
View 1 Replies
Mar 4, 2011
I am working on a web application which is designed as master and web content pages. I designed login and logout for the application. When logout is clicked, it will call a method to clear the session variables and also some other methods which will clear some data in the oracle tables.
But if the user is clicking on the internet explorer close button, then there is no way to know that the application is closed. For this I got a link where we can write a javascript method and find the unload of the page and execute all of these but pages will be loading and unloading each time user navigates inside the application and I cannot depend on unloading the page.
how can I do all the process of clearing session and other things when user clicks close button of internet explorer.
Also this application needs to be holding the session for more than 1 or 2 hours, so session should not expire till logout is clicked or close button is pressed.
View 10 Replies
Dec 16, 2010
I have website which runs multiple threads. When user close the browser but threads are still running. How to kill/stop all thread in asp.net on browser close.
View 2 Replies
Sep 13, 2010
I'm using Visual Studio 2008, and my database is SQL Server 2000.
I want to add a connection to the Server Explorer in VS. The Data source is Microsoft SQL Server (SqlClient). After entering in all my information and I click Test Connection, it is successful.
But when I click OK, I get the error:
Unable to add data connection. ExecuteScalar requires an open and available connection. The connection's current state is closed.
View 3 Replies
