Cannot Connect To SQL Server Database Using Ado.net After IP Address Has Changed
May 4, 2004
Dear all,
I wasn't able to connect to my SQL server 2000 database (which reside in the network in a windows 2003 server) after the IP address of the server has changed and the server is shut down, moved and re-started.
I was able to connect to this server by using ADO using VB. I was able to register this server in my EM and was able to create ODBC connection. Just when using ADO.NET, I wasn't able to connect. Any ideas? Will there be any caching within ADO.NET still pointing to the old IP address?
Thank you for all the help in advance.
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Apr 22, 2003
Hello,
Soon, we are going to redesign our servers and their positioning insofar as web access is concerned. The SQL Server will go to a DMZ.
Its IP Address (as well as hostname) is to be changed. Can you offer suggestions about what to be aware of on these two items?
I've been involved in a hostname change befoew (and, it's a pain), but never an IP Address.
Thanks, MichaelG
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Jun 11, 2007
I changed the login password on my computer today, and now I cannot connect to the SQL Server instance I have on that same machine. I am using Windows Authentication. I would think that, if I can log on to my computer, I would be able to connect to the database, since I have been "authenticated" by windows but, that does not appear to be the case. Can anyone offer any advice? Thanks in advance for any help you can provide.
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Apr 28, 2006
I am having trouble to use SSMSE to remotely connect SQL Express server using IPs other than the base IP of the machine.
Machine settings:
(1) Has multiple IP configured. Those IP are accessible remotely
(2) Firewall is not on.
SQL Express server configuration:
(1) TCP/IP and named pipe are on
Browser service state:
(1) running
(2) listening at 0.0.0.0:1434 (UDP)
SSMSE connection results:
(1) with <baseIP><instance>, connects OK
(2) with <otherIP><instance>, connection failed.
Both connections use exactly the same authentication information.
Testing results using telnet:
(1) telnet <baseIP> 1434, OK
(2) telnet <otherIP> 1434, OK
Does SSMSE actually only listen on the base IP even it shows to listen on all the IPs?
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Aug 4, 2006
I'm using SQL Manager from my Enterprise server to connect to my SQL Express server that will act as a witness to a db mirroring system. If I try to connect to the SQL Express server using its IP address, I get a "named pipes error 53." If I connect by browsing the network and connect to the Name of the Server "MachinenameSQLExpress", I am successful. I would like to be able to connect to the IP directly as it's not dependant upon certain services to be started or configured a certain way.
Thank you,
Chad
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Jun 12, 2001
WE have an appl testing the SQL security feature, at some point in time
they drop the BUILTINAdministrators group from the login,
changed the security mode to "Windows NT only", but no users have system admin
server role, after the SQL server was restarted, no one can connect to the server. No one has authority to change the security mode back to "mixed"
(all standard logons will not work)
Any comment ?
The way I can think of to fix the problem:
detach all user databases
run rebuildm.exe
reattach all user databases
recreate the required logins
Any other suggestions/solutions, Thanks
Anthony
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Aug 31, 2007
Hi,
I am trying to connect to SQL Server Express 2005 from a remote connection through the internet using an IP address in a string like this;
Data Source=190.190.200.100,1433;Network Library=DBMSSOCN;Initial Catalog=myDataBase;User ID=myUsername;Password=myPassword;
the error I am getting is this
A connection was successfully established with the server, but then an error occurred during the login process. (provider: TCP Provider, error: 0 - The specified network name is no longer available.)
anyone have any suggestions or maybe another way to achieve this type of connection?
Thanks,
Razzle
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Sep 9, 2015
I have inherited two separate SQL clusters. One cluster instance is called DESQLSC1INST1 and the other is MKSQLSC1INST1.
On MKSQLSC1INST1 I can connect by using MKSQLSC1INST1, MKSQLSC1 and the IP address that the cluster is running on.
On DESQLSC1INST1 I can only connect using DESQLSC1INST1.
I have checked configuration manager but it does not show me how this is set up.
Is there another way to configure this?
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Jun 12, 2006
Hi, I am connecting from clientside with sql server 2005 installed trying to connect to a database running on a server with sql server 2000 installed. this is not a 2000 to 2005 compatibility issue.
I can connect locally fine to the server and log in using the sa account, however for BDE admin i HAVE to use the server name instead of ip address. If i try to use the ip address of the server, the connection dosnt get established. *this is all happening localy on our own network.
How to I use ip address to connect instead of the server name? I will need to connect remotely outside of our network later on, and i dont think I can use the servername. Does anyone have a solution? thanks.
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Mar 2, 2008
Hi try to connect with driver {SQL Sever Client} but i can't
I'm have SQL Server 2005 Express SP2
Error connecting to the ODBC server:[Microsoft][SQL Native Client][SQL Server] Changed database context to..
Please Help me
Thanks
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Mar 6, 2015
One of my programmers changed their database from full to Simple recovery. Saw that my job that backs up the Full Recovery mode databases failed, so I moved that database to my Simple database backup job plan and removed it from the Full Recovery job. I am unable to remove the db from the Transaction Log task on the Full Plan because when I try to edit that job "Databases with Simple Recovery will be excluded"
My transaction log backups are still failing with the following error: "The statement BACKUP LOG is not allowed while the recovery model is SIMPLE. Use BACKUP DATABASE or change the recovery model using ALTER DATABASE. BACKUP LOG is terminating abnormally.". Possible failure reasons: Problems with the query, "ResultSet" property not set correctly, parameters not set correctly, or connection not established correctly.Just want to remove that database so my Full Recovery backup job does not try to back it up.
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Feb 24, 2006
Hello everyone,I have a webcontrol that uses database-structures alot, it uses the system tables in SQL to read column information from tables. To ease the load of the SQL server I have a property that stores this information in a cache and everything works fine.I am doing some research to find if there are anyway to get information from the SQL server that the structure from a table has changed.I want to know if a column or table has changed any values, like datatype, name, properties, etc.Any suggestions out there ?!
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May 29, 2007
Is there a simple way to tell when a database was last accessed or changed?
We have some databases on old servers which we would like to discontinue but do not know if they are being used.
We would rather not just take them offline.
Is there anyway I can find out if they are still being used?
Please help if you can.
Regards, Major (that is my Christian name ;-)
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Mar 8, 2001
How do i find who has changed the settings in the database.
basically when i looked at this morning i saw a database which is set in single user mode.when i tried to look at the errorlog i found nothing except the spid's of different people and as far as i know i think that spid's are assigned randomly depending on there availability.
Now this has happened twice recently and now i want to find out who the culprit is his username, machine name but not spid.
Can i do it if how can i.
how do i track each and every users info what he is doin and at what time.
do i need to set up or configure any options.
sometimes i also see that there is a dbcc command run by as it says winnt/system what does this mean how is this running.
Thanks in advance for ur great help.
Its very urgent because its a production machine.
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Jan 13, 2005
I am in a bind here..
I am getting the message (after do any sort of query) Database context changed to <dbname> I am using PHP as the p language.
Does anyone have any clue on why it is doing that..
Recently my host upgraded there PHP to version 4.3.10 and before the upgrade the queries were working fine.
Im on a windows server that runs PHP and im using a MSSQL database.
I've checked the bug reports on PHP and didn't come up with anything as well as googling the error..
IF you have any insite on this problem please let me know.. It may be a stupid error that I am overlooking on my part.
Thanks in advance
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Apr 11, 2007
Ok,
I am a webdesigner who at the moment does not know SQL (although, I plan on remedying that) so I am developing a page with a DB designer - he is doing the DB work, I am doing the look/feel, but he asked me the following questions, of which I cannot seem to find an answer and the guys who tend our server are useless - so I am hoping someone here can help me. In general what he needs to know is:
"what is the external address (either in domain format or IP) and the equivalent internal address so that we can access the msSQL running on your server. The internal address is needed for the webpages to talk to it, while the external address is needed for development of the pages in visual studio and the database tools." Also, he later sent me an email asking that when I get this info (from someone) that it would be usefull to get a sample string/query to get access to the DB. I am running SQL 2000 and have enterprise manager. Where can I find this information? or how do I figure this out????
Thank you for all the help -- Please let me know if you need any more info.
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Sep 15, 2005
I do weekly full backups of my SQL databases via a scheduled T-SQL job.I noticed that I have some static databases that dont normally change,so I dont want to back it up if it has not changed, but when it does,then I want a backup.Is there something in the master table, as example, that I can checkprior to running the backup that will indicate any changes?An example is the Northwind database. I could exclude it from thebackup, but then I would not back it up if it where to change. Againthis is an example, I would not need to modify Northwind.Thanks in advance for any ideas; they usually give me ideas to problemsyet to come....Rob Camarda
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Feb 13, 2008
i ve a filed named "Email" of datatype .i ve created this field to insert email address in this field.but when i insert an email address like "bilal@yahoo.com" from a textbox wh is in an ASP.net webpage then in the filed i see this "System.Web.UI.WebControls.TextBox".
can u plz tell me how to fix this
Regards
Ahmed Bilal Jan
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Oct 30, 2015
We had a strange incident with our Database Mail today. We use sp_send_DBMail to send mail from stored procedures in our SQL Server 2012 (11.0.2138). There are 7 profiles available for use by different databases. The actual stored procedures are called by Web apps using a connection string that has a specific SQL user identified.
Last night app 1 was using profile 1 like usual and app 3 was using profile 3 like usual. This this morning (7 hours later) App 3 was sending from profile 1 everytime a call to sp_send_dbmail was made. Not good. App 1 was still correctly sending from profile 1.
We ran a call to sp_send_dbmail from a query window using profile 3 and it sent using the correct profile 3. We used the Database Mail right-click option of "Send Test Email..." to both profiles and they worked as expected.
Our investigation showed that in the Database Mail configuration wizard "Manage Profile Security" section Private Profiles tab... the User name that is used to call the stored procedures from web app 3's sp_send_DBMail did not have access to profile 3 anymore. It did have access to 5 of the other 7 profiles. 1 of the no access profiles was legitimate #7.
The only thing that has been changed lately was, 2 days ago a mail profile was deleted as it was no longer used. We used the Database Mail Configuration Wizard to remove it.
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Apr 21, 2015
I have an online SQL Server database, and my web site registered clients can change the records of this database. My need: if a record of this database is changed, whole the changed record send to me and to the person who changed it immediately. I thought it could be possible through Transact-SQL,
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Apr 3, 2008
Hi,
I am having a problem connecting my .net applications from the application server to the database server. When I run the application from my windows xp (sp2) box it works fine. When I try to connect via SQL Management Studio to the database server from the application server I get the same error.
Here is the error:
System.Data.SqlClient.SqlException: 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: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)
Here is the Environment:
App Server:
Windows Server 2003 Standard Edition
Inside Company's Firewall/ Network
Database Server:
Windows Server 2000 Advanced Edition
SQL Server 2000 SP4
Remote Connections to the Server is checked
Enable Protocols: Named Pipes & TCP/IP
TCP/IP Port: 1402 (I don't know why it isn't the default of 1433)
The db server is sitting out side the Company's firewall (don't ask me why). I can access it fine from inside the firewall on my XP box but not from windows server 2003. There is a web server outside the our network that also connects to the db server with no problem and that is running Windows Server 2003 Web Edition.
I can ping the db server from the app server using the IP address.
I tried using the IP address and the port 1402 in my connection string but that didn't work from any machine (XP and Server).
I imagine the issue is somehow related to the company's firewall but why would it only block Windows Server 2003 and not XP?
What do I tell the network admin to change?
Any help would be appreciated.
Thanks,
Oran
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Dec 20, 2014
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I would like to know if there is a workaround to set up the connection to first access the "Remote desktop" link and then the SQL server.
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Feb 19, 2006
hi,
When I connect a VB6 form to an access database,I use the following code:
Dim sConDB As String
Public cnnTest As ADODB.Connection
'==
'Connect to Database
sConDB = "Provider=Microsoft.Jet.OLEDB.4.0;"
sConDB = sConDB & "Data Source="
sConDB = sConDB & App.Path & "databasename.mdb"
Debug.Print sConDB
Set cnnTest = New ADODB.Connection
cnnTest.ConnectionString = sConDB
cnnTest.Open
End Sub
Instead of using an access database,I am using SQL server database,so my question is:what's the code for connecting VB6 form to SQL server database?
Thanks for your help
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Jun 21, 2006
HI
i have 2 computers in my home names PC1,PC2 .
i have database sql server 2000 in pc1 named Books , i want to connect to this database from pc2 .
note : i am used visual basic.net 2003
if any one have books or articales about this subject please i want help quickly
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Oct 17, 2006
VB.NET. I'm getting this error:
Login failed for user '(null)'. Reason: Not associated with a trusted SQL Server connection.
I don't have a username and a password setup for my server connection.
I tried changing the Security properties to Windows & SQL and Windows
authenciation and I'm still getting this error. Am I suppose to set up a username and password for my server? If so how? Thanks
Also a quick side question, how do I make the primary key auto increment through Enterprise Manager?
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Apr 16, 2008
Hi,
I have a sendmail task in my ssis package. In the From field, if i hardcode my from and to address as user@company.com it works fine and mail is sent. But i want to read the from and to values from a database table. SO i defined the package level variables and getting the values into the variables. SO at From if i specify the variable name it gives a compiel time error"the address in th from line is mal formed. it is either missing @ character or not valid".
how do i specify teh variable for from address? I feel, may be i can use expression, but i don't know how to do that.
Can anyone help me with this?
Thanks in advance,
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Apr 23, 2015
I am programming an online game (such as chess) which two players can play together online.
Each one of the players should have installed the game application (developed by C#) on their computers.
When a player do some action, a record of a database (SQL Server 2012) which has been placed on the internet will be changed.
My need: when a record of this online database changes, whole the record send to both players' game application immediately.
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Jan 21, 2007
I am trying out a simple ASP.NET application which includes access to an SQL Server Database. It works fine on my local machine when I connect to the SQL Server and use SQL commands (via C#) to access it.
But my web hosting provider uses ODBC drivers for database access (they support the SQL database type). I would like to find out how I should connect to my SQL Server database and program the access in order for it to be ODBC compatible, so that I can deploy it to my web hosting server. I should also mention that I am using Visual Web Developer 2005 Express Edition.
Thanks for any help or pointers.
Kumar
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Apr 6, 2007
hi,
im making a log in using the asp.net web site admin tool the probably
is when click n the security tab it says it cannt connect to the
aspnetsqlprovider. thanksdomal
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Aug 13, 2007
Hello all,I try to configure the website by using the built in tool of vs2005. When i click the button from Website -> ASP .NET Configuration.when the main page is displayed, i clicked the security, the error shows like:---------------------------------------- There is a problem with your selected data store. This can be caused by an
invalid server name or credentials, or by insufficient permission. It can also
be caused by the role manager feature not being enabled. Click the button below
to be redirected to a page where you can choose a new data store. The following message may
help in diagnosing the problem: Unable to connect to SQL Server database.---------------------------------------How to enable connection to sql server? Thanks
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Aug 21, 2007
To All Members,When I create a new project and try to use the ASP.Net web application administration :security tab, I get the following :There
is a problem with your selected data store. This can be caused by an
invalid server name or credentials, or by insufficient permission. It
can also be caused by the role manager feature not being enabled. Click
the button below to be redirected to a page where you can choose a new
data store. The following message may help in diagnosing the problem: Unable to connect to SQL Server database. I am using Microsoft Visual Web Developer 2005 Express Edition with a local MS SQL Server 2000.I am new to all of this so a little help would be greatThanks.please mail me to dehackers@linuxmail.orgor izzuan@malysia.com
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Oct 15, 2007
Hi, I am working through "Sams Teach Yourself ASP Dot NET 2.0 in 24 Hours"
I am upto hour 20 where it says
Configuring an ASP.NET Website to Support Membership
To configure our website to support membership, we must launch the ASP.NET Website Administration Tool. To accomplish this, either click the ASP.NET
Configuration icon at the top of the Solution Explorer or click the Website menu's ASP.NET Configuration option. Either way will open a web browser pointed to a page through which the ASP.NET site can be configured. Figure 20.1 shows the ASP.NET Website Administration Tool.
To add user account support, click the Security link. This will take you to the Security screen shown in Figure 20.2. From this screen, you can specify the user accounts in your system, what roles for users exist, and the access rules for users.
However when I click security I get the following error message;
"There is a problem with your selected data store. This can be caused by an invalid server name or credentials, or by insufficient permission. It can also be caused by the role manager feature not being enabled. Click the button below to be redirected to a page where you can choose a new data store."
"The following message may help in diagnosing the problem: Unable to connect to SQL Server database."
If I test the provider I get this error;
"Provider Management""Could not establish a connection to the database.""If you have not yet created the SQL Server database, exit the Web Site Administration tool, use the aspnet_regsql command-line utility to create and configure the database, and then return to this tool to set the provider."
I am using MS VWD Express with MS SQL Express. I have run the 'aspnet_regsql' tool on my database which the book fails to mention and verified that the tables were created correctly. I have tried copying the MDF file directly into my 'app_data' directory but this made no difference. I have googled these errors and nothing seems to help. I can connect to the database through a 'SqlDataSource' and have had no trouble with the database in the previous sections of the book. I think it may have something to do with how I setup SQL Express or database permissions, I hope someone can help. Thanks in advance.
Here is a copy of my web.config; <?xml version="1.0"?><!--
Note: As an alternative to hand editing this file you can use the
web admin tool to configure settings for your application. Use
the Website->Asp.Net Configuration option in Visual Studio.
A full list of settings and comments can be found in
machine.config.comments usually located in
WindowsMicrosoft.NetFrameworkv2.xConfig
--><configuration>
<connectionStrings>
<add name="MyFirstDatabaseConnectionString" connectionString="Data Source=.;AttachDbFilename="C:Program FilesMicrosoft SQL ServerMSSQL.1MSSQLDataMyFirstDatabase.mdf";Integrated Security=True;Connect Timeout=30;User Instance=True"providerName="System.Data.SqlClient" />
</connectionStrings><appSettings/>
<system.web><!--
Set compilation debug="true" to insert debugging
symbols into the compiled page. Because this
affects performance, set this value to true only
during development.
Visual Basic options:
Set strict="true" to disallow all data type conversions
where data loss can occur.
Set explicit="true" to force declaration of all variables.-->
<compilation debug="false" strict="false" explicit="true" /><pages>
<namespaces><clear />
<add namespace="System" /><add namespace="System.Collections" />
<add namespace="System.Collections.Specialized" /><add namespace="System.Configuration" />
<add namespace="System.Text" /><add namespace="System.Text.RegularExpressions" />
<add namespace="System.Web" /><add namespace="System.Web.Caching" />
<add namespace="System.Web.SessionState" /><add namespace="System.Web.Security" />
<add namespace="System.Web.Profile" /><add namespace="System.Web.UI" />
<add namespace="System.Web.UI.WebControls" /><add namespace="System.Web.UI.WebControls.WebParts" />
<add namespace="System.Web.UI.HtmlControls" /></namespaces>
</pages>
<!--
The <authentication> section enables configuration
of the security authentication mode used by
ASP.NET to identify an incoming user. -->
<authentication mode="Windows" />
<!--
The <customErrors> section enables configuration
of what to do if/when an unhandled error occurs
during the execution of a request. Specifically,
it enables developers to configure html error pages
to be displayed in place of a error stack trace.
<customErrors mode="RemoteOnly" defaultRedirect="GenericErrorPage.htm">
<error statusCode="403" redirect="NoAccess.htm" />
<error statusCode="404" redirect="FileNotFound.htm" />
</customErrors>-->
</system.web></configuration>
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Oct 26, 2005
Hello,I am trying to connect to a SQL SERVER 2005 database. The database file is in App_Data folder under Inetpub/[AppRoot]Here's the Connection String:"Data Source=SERVER2/YUKON;AttachDbFilename=C:/Inetpub/MyNotes/App_Data/MyNotesDB.mdf;User ID=sa;Password=****"Every time I try to connect I get a this error on my page: "Timeout expired. The timeout period elapsed prior to completion of the operation or the server is not responding."Here's the stack trace:[SqlException (0x80131904): Timeout expired. The timeout period elapsed prior to completion of the operation or the server is not responding.] System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection) +684979 System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj) +207 System.Data.SqlClient.TdsParser.Connect(Boolean& useFailoverPartner, Boolean& failoverDemandDone, String host, String failoverPartner, String protocol, SqlInternalConnectionTds connHandler, Int64 timerExpire, Boolean encrypt, Boolean integratedSecurity, SqlConnection owningObject, Boolean aliasLookup) +890 System.Data.SqlClient.SqlInternalConnectionTds.OpenLoginEnlist(SqlConnection owningObject, SqlConnectionString connectionOptions, String newPassword, Boolean redirectedUserInstance) +601 System.Data.SqlClient.SqlInternalConnectionTds..ctor(SqlConnectionString connectionOptions, Object providerInfo, String newPassword, SqlConnection owningObject, Boolean redirectedUserInstance) +159 System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection) +346 System.Data.ProviderBase.DbConnectionFactory.CreatePooledConnection(DbConnection owningConnection, DbConnectionPool pool, DbConnectionOptions options) +28 System.Data.ProviderBase.DbConnectionPool.CreateObject(DbConnection owningObject) +445 System.Data.ProviderBase.DbConnectionPool.UserCreateRequest(DbConnection owningObject) +66 System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject) +304 System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection) +85 System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory) +105 System.Data.SqlClient.SqlConnection.Open() +111 MyNotes.Membership.MembershipManager.CreateMember(MemberProfile objMemberProfile) in c:InetpubMyNotesApp_CodeMyNotes.Membership.cs:21 _Default.Page_Load(Object sender, EventArgs e) in c:InetpubMyNotesDefault.aspx.cs:23 System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +15 System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +36 System.Web.UI.Control.OnLoad(EventArgs e) +102 System.Web.UI.Control.LoadRecursive() +47 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1064Thanks in advance,Arnie
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