I keep getting a
InvalidOperationException: ExecuteReader requires an open and available Connection. The connection's current state is closed.]
It is because my connection is closed. What is wrong with my connection string? Why won't it open.
[Code]....
I have Oracle (10g Express Edition) installed on one pc.
Visual Studio 2008 SP1 is installed on another pc.
I want to run an ASP.NET web app that uses the remote database. The two PCs are connected by a LAN (wired) connection. How can I connect to the database? What will the connection string be? The operating system on both PCs is Windows XP.
how to connect to remote database(SQL server)using c#
View 2 RepliesWe have a database on our server, here at the office. We now want to create a asp.net website that will be accessible to the public.
Say the domain of the website is [URL] and it's hosted on a webserver of HeartInternet.
When someone connects to that domain, that webpage must be able to pull data from our server that is located here in our office.
In other words the webpage cannot just load data out of the MySQL database loaded on its server, but it has to connect to our server and get data.
I have amazon cloud aws, i am developing a website in asp, i have remote RDP access to my server..
So i have not installed postgreSQL etc.. but i am unable to connect to that database.. and when i install and run on my local system, it connect.
I have created web pages using VS Web Developer that use a local Developer Edition of SQL server database on my PC with LINQ to SQL. When I deploy my website to a remote web host SQL server, I need for my web pages to be able to use the remote database instead of the local database. So, how do I get the Server Explorer to connect with a remote SQL Server database?
View 6 Repliesim trying to get a dataset from an access databaseim using this connection string:
<connectionStrings>
<add name="SiteConnString" connectionString="Data Source=c:inetpubvhostsdbmainDB.mdb"
providerName="Microsoft.Jet.OLEDB.4.0" />
</connectionStrings>
[code]...
[Code]....
When I am trying to insert some data I am getting error.
Could not find file 'C:WINDOWSsystem32ikcit.mdb'.
Unable to understand Why??
trying to connect an access db (.mdb) to a gridview control. the db is in a folder under my iis wwwroot folder. when setting it up i can test the connection ok, but when i go to save it, it comes back with 'the system cannot find the file specified'?
if it can test the connection ok how come it can't find the file? for the connection to test ok obviously the path must be right is there some restriction that the db has to be in the app_data folder? i notice when creating the data source and selecting browse, the only folder it displays and allows you to choose from is app_data. thats pretty restrictive and then makes it more difficult if that has to change when moving from development to production. is there some way to connect to a db outside of the project?
I having worked with asp.net in while.Working in VS 2008 it seems it embeds the database in the solution.I have a external database,that is used by other applications.How do I connect into that?
View 2 RepliesIīm learning how to use a web service with flash.
Now I need to connect the web service to my db.
This is what I tried:
Code:
Public Function HelloWorld() As String
Dim orgcon As New OLEDBConnection("Provider=Microsoft.jet.oledb.4.0;data source=c:dataDB.MDB")
Dim OrgDA As New OleDbDataAdapter("select * from organization order by orgname", orgcon)
Dim Orgds As New System.Data.DataSet
OrgDA.Fill(Orgds, "Organization")
Dim hwstring As String
hwstring = orgds.tables(0).rows(0).item(3).tostring
Return hwstring
End Function
The flash just gives me an error that there was an error opening the web service. For some reason I canīt debug it in vwd.
I have a task in which i have to compare 2 access databases
and in these 2 databases, there is a field "Customer_Name" Let's name both databases as DatabaseA and DatabaseB
In DatabaseA there is a list of Customer_Name that includes all the customers
Now I have to match this CustomerList with "Customer_Name" field present in DatabaseB
If Customer Name of DatabaseA is present in Customer Name of DatabaseB then leave it as it is
If Customer Name of DatabaseA is not present in Customer Neme of DatabaseB then rename the name of that customer as "NA" in DatabaseA'S Customer Name field
So i have to perform these 2 above mentioned things, is it possible to do it in asp.net coding ? just with a press of button (in button click even) to save time as the list of customers includes 3000 customers approx
I have a problem regarding database. I write to the database fine with this code:
[Code]....
When I close the application and view the Database with access.. the records are added ok, but when I start the application the records are deleted. This is what I have in the Form_Load:
[Code]....
When I try to connect to access database from app_data folder of the webform I am getting "Invalid UDL file" .
View 1 RepliesI have 2 servers. the database server (DB1) which has sqlserver installed and the application server (WEB1) which has my web application. They are both on the same network and both have the same administrator login.
My web application on the application server needs to access the database on the database server. sqlserver is set to mixed mode in security. i created a random sqlserver user login that can only access my database and set it as the db owner. I use the username and password for this in my connection string. when i run my web application i can read information but i cant write to the database. My app is using windows thentication. I have set my NT AUTHORITYNETWORK SERVICE account to db_owner for my database as well... grabbing at straws!
Question 1: When my application talks to sqlserver does it use the administrator login or the NT AUTHORITYNETWORK SERVICE account which i got from using windowsidentity.getcurrent()?
Question 2: If I use ASP.Net impersonation, what does this do exactly? Because if i run the ndowsIdentity.GetCurrent() i get the username that i specified. How does this tie in with my connection string?
Question 3: If I dont use impersonation what and how do i have to configure sqlserver to accept my insert/update requests? Do i need to work with the NT AUTHORITYNETWORK SERVICE? or can i just use my user login? What do i need to add or remove from my connection string? (see below).
[code]....
I'm having problems trying to connect to a remote debugger for VS2008-SP1.I'm trying to debug an ASP.NET application on a Win2k8 VM. The host PC (WinXPsp3) running Visual Studio is connected to an AD domain, and is logged in with a domain account. The VM is not connected to the domain and is logged in with the local Administrator account.The VisualStudio remote debugger requires authentication in both directions, so I would normally add my domain account as a local admin on the VM and allow debug permissions for that user.Since the VM is not on the domain, I can't add my domain account as a local admin. What can I do to get remote debugging going between my PC and the VM?
View 3 RepliesIs it possible to connect to a Remote Desktop from my ASP.net application,If so can you guide me through it.
View 1 RepliesI am trying to connect asp.net with mysql on remote pc. When i am connecting asp.net with localhost mysql it is working properly but when i change "localhost" with IP address it show error.
View 4 RepliesI have a following details provided by our mssql2005 database provider
Server IP : 100.20.255.34
Databaase name : insss
User: nas0
password : ymkv45SEv
i have the following connectionstring in my web.config file in my offline site as :
<add name="ConnectionString" connectionString="Data Source=.SQLEXPRESS;AttachDbFilename=|DataDirectory|ASPNETDB.MDF;Integrated Security=True;User Instance=True" providerName="System.Data.SqlClient"/>
I want
how to edit my web.config connection string mentioned above using the details provided above so that it connect to my MSSQl2005 hosting provider .... ?
I don't know how to edit connection string to do that !!
When i run my site www.vbi.volvobusesindia.com then the following error occurs in top of the page ...
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: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)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: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)
I am working on a project where one of the requirements is to re-write an ASP.NET application. The old ASP.NET application was based on .NET Framework 1.1. The new ASP.NET application is based on .NET Framework 3.5.
One of the functions in the old web application was the ability to send email. The old code used the System.Web.Mail.SmtpMail class, whereas the new web application uses the System.Net.Mail.SmtpClient class.
In testing this on our development servers, everything worked fine. However, we have two beta clients testing out our software, and they both run into problems sending email in the new web application.
The specific exception is as follows:
"Unable to connect to the remote server ---> System.Net.Sockets.SocketException: No connection could be made because the target machine actively refused it"
Both the old and new ASP.NET application are on the same server (Windows Server 2003). They both are using the same Exchange mail server. Why is it that the old ASP.NET application can successfully send email, but the new one cannot?
I looked at the old code, and it did not use any form of authentication, it just specified the sender's email address, the recipient's email address, the subject, body, and server, and sent the message. I did the same thing in the new code, with the only difference being that I used the SmtpClient class.
Below is a code snippet from the new ASP.NET application:
System.Net.Mail.MailMessage mail = new System.Net.Mail.MailMessage();
mail.To.Add(messageTo);
mail.From = new MailAddress(messageFrom);
mail.Subject = messageSubject;
mail.Body = messageBody;
SmtpClient client = new SmtpClient();
client.Host = smtpServer;
client.Send(mail);
I have created my asp.net website using database ASPNETDB.MDF but when I try to host my site on server ...
The SQL Server 2005 hosting provider issue me the
database name dobriyalji
server ip : 69.112.222.220
database username : XXXX
database password : XXXX
I have imported all of my ASPNETDB.MDF tables to my server database dobriyalji ...
And I empty the Appdata.mdf and aspnetdb.log file from App_Data Folder ...
When I try to run my site the following error occurs ...
An attempt to attach an auto-named database for file UsersAshish DobriyalDocumentsVisual Studio 2008WebSitesVOLVOApp_DataASPNETDB.MDF
failed. A database with the same name exists, or specified file cannot be opened, or it is located on UNC share.
MY LOCALHOST CONNECTION STRING :
<connectionStrings>
<add name="ConnectionString" connectionString="Data Source=.SQLEXPRESS;AttachDbFilename=|DataDirectory|ASPNETDB.MDF;Integrated Security=True;User Instance=True" providerName="System.Data.SqlClient"/>
</connectionStrings>
MY REMOTE HOST CONNECTION STRING :
<connectionStrings>
<add name="vbi_india2kConnectionString" connectionString="Data Source=69.112.222.220;Initial Catalog=dobriyalji;Persist Security Info=True;User ID=XXXX;Password=XXXX" providerName="System.Data.SqlClient"/>
</connectionStrings>
I have a MySQL data at a web hotel. I can connect to the database from my web application hosted at the hotel . But trying to connect from a client application running on my PC fails using the same ConnetionString. The error is: Unable to connect to any of the specified MySQL hosts
In fact the method below (the method is protected in the web application) fails in my client application but works in my web application.
[code]....
I just tried to download WorkBench 5.2 and HeidiSQL, both connects to the database from my PC when supplying server and password information.
How to connect to a remote oracle database with Visual Studio?
I know how to create the connectionSting in web.config. I wonder if I can connect to an oracle database when creating a LINQ class so that tables will show in the Server Explorer.
I have got this error
Unable to connect to the remote server
when I call the web service from the windows service. But I can visit this web service through IE and I also wrote another console application to call the web service and it works fine, too.
The exception infomation is below:
A socket operation was attempted to an unreachable network 127.0.0.1:8888
Here is my code:
WebImageSVC webSvc = new WebImageSVC();
ConfigManager.LoadConfigManager();
webSvc.Url = ConfigManager.WebSvcAddress;
webSvc.Proxy = null;
webSvc.CanUpload(0, "");
I try many methods, like turn off the firewall and anti-virus software, set the web services proxy property to null. but still cannot solve this issue.
My site sends confirmation emails from a purchase. 95% of the time, it works. The other 5% after clicking the 'Confirm' button that runs the payment and should send the email, i get the following exception:
Details:
Exception: Failure sending mail.
Inner Exception: Unable to connect to the remote server
Inner Exception(2): A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond 72.167.234.197:25
The code to send the email is this:
Dim smtpClientPayPalSuccess As System.Net.Mail.SmtpClient = New System.Net.Mail.SmtpClient()
smtpClientPayPalSuccess.Host = "relay-hosting.secureserver.net"
smtpClientPayPalSuccess.Send(mailMessagePayPalSuccess)
FYI: I have confirmed with the hosting that I don't need any credentials, or a different port number than 25. This is also running over https. why this would be happening only a small percentage of the time?
