Forms Data Controls :: Datasource Not Connecting To Database
Jun 24, 2010
I am using Visual Studio 2008 and asp.net technology with C# language. Whenever I try to choose any datasource for databound control like "gridView" of "ObjectDataSource". The connection can be tested as OK but when I click on OK the it gives following error and database could not be added: "Object Reference not set set to an instance of an object." it was working perfectly fine in Visual Studio 2005, so kindly help if there is some settings that are to be adjusted for 2008 version.
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Mar 8, 2010
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 have set up a db locally which mimics the production DB, THe production db and website has no has no issues.
THis used to work till i had hard disk failure and had to reinstall all software and do the db from scratch. Used the table scripts and ran the aspnet_regsql. I am using sql server express 2008 asp.net 3.5 I am using custom provider for Roles and custom membership provider for Memberships. Pretty sure the problem is in the db permissions, though I have set up Users in the Security of the DB.
[Code]....
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Feb 8, 2010
connecting my database to the online server. My server is seekdotnet. But I had been receiving this error code Cannot open database "database.bak" requested by the login. The login failed. Login failed for user '219_nypmecom'.
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Jun 30, 2010
I was working on a asp.net project earlier but due to some OS problem I had to re-install the OS..so before re-installing the OS I detached my sql database and then attached it back after installation..but I am having a login problem now..the previous servername was XYZ-DB840C74SQLEXPRESS..so this user i.e. XYZ-DB840C74ASPNET is added to the database's permissions..now my new server name is XYZ-8D50FD73SQLEXPRESS..but I am unable to add this user through the permissions wizard..I am getting the following error: Cannot open database "finance" requested by the login. The login failed. Login failed for user 'XYZ-8D50FD73ASPNET'.
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Mar 25, 2010
In my windows application, i am listing the System DSN's configured on the remote machine in a combobox. Once i select the DSN and click on Connect button, i should be able to connect to the remote database. I am trying to open the connection to the database using ODBC but am getting the below error.
ERROR [IM002] [Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified.
Below is the code sample
string conn = "Provider=MSDASQL;Remote Server=http://BLR1WKD010; Remote Provider=MSDASQL;DSN=" + clsODBC.pDBName + ";UID=" + txtUsername.Text + ";PWD=" + txtPassword.Text;
OdbcConnection odbcConn = new OdbcConnection(conn);
odbcConn.Open();
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Apr 22, 2010
I have no trouble connecting to a SQL server with code in my web config file for user registeration. But I am having trouble telling it to go to a particular table.
Here is what is in my web config file:
<connectionStrings>
<add name="homeowners" connectionString="Data Source=countrypark3.db.5503108.hostedresource.com;Initial Catalog=countrypark3;User ID=xxxxx;Password=xxxx; Trusted_Connection=False" providerName="System.Data.SqlClient" />
<remove name="LocalSqlServer"/>
<add name="LocalSqlServer" connectionString=" Server=whsql-v04.prod.mesa1.secureserver.net; Database=DB_675; User ID=user_id; Password=password; Trusted_Connection=False" providerName="System.Data.SqlClient" />
</connectionStrings>
I'm trying to get it to point to the homeowners table.
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Apr 12, 2010
I have two PCs with Windows Server 2003 standard adition installed on them, each are in a saperte room, and having SQL Server 2005 Express. Now I want to let Myserver to connect to server1 with a readonly access to a database on it. I figured to create a user acount on server1, and make it as a login account in SQL Server and grant the appropreate privilage. Now I'm wandering are there any security risks regarding this approch.
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May 20, 2010
While working with LINQ to ENTITIES I see that there is only a way to use stored procedure that is returning one entity only, or a view that is a join of two entities.
But what if I need in ASPX page to get two tables that there is NO connection between them, no join can be done between them at all.
I have one Stored Procedure that return the two tables, but entities don't support this right now.
I can split them to two Stored Procedure and call each of them separately.
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Jul 13, 2010
I have a problem with connecting a DropDownList to a DataSource.
The scenario: When I add am item to the database (I do this using a GridView/ObjectDataSource / SPROC) I want to update a DropDownList that lists this items as well.This DropDownList is linked with another ObjectDataSource. Now, I listen to the RowCommand event of the GridView and in a certain case I refresh the DataSource of the DrpoDownList and do a DataBind to the DropDownList afterwards.
The strange thing is, that when I take a look at the DropDownList's Items-Collection during the Page's OnPreRender event handling, the items collection contains the new entry but the new entry is not rendered, i.e. when I take a look at the rendered HTML the <option></option> entry for the new value is missing.
After another postback to the page the entry appears in the DropDownList?
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Apr 8, 2010
i have a project running good (database and application both are in same server). some days before we've decided to place databse (sql server 2000) in different server.we created new server with windows server 2003 and Sql server 2000; nothing else is installed in it.And then i register new server's sql in old server's sql server. it connected successfully. even i can fire a query to new server from old server.
Both new and old server having windows server 2003 and Sql server 2000.
Now the problem :I CAN NOT ACCESS NEW SERVER'S DATABASE FROM MY APPLICATION.
I have changed my web.config as under :
OLD :<connectionStrings>
<add name="ConnectStr" connectionString="Data Source=OLDSERVER;Initial Catalog=DataExtractor;Persist Security Info=True;User ID=123;Password=123;pooling=true;Max Pool Size=50" providerName="System.Data.SqlClient"/> [code]....
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Mar 9, 2010
I need the syntax for a connection string in web.cong to connect to a SQL Server 2005 database that is on a VPN. I have an account on the DB that I can use....just don't know how to construct the connection string properly.
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Apr 1, 2010
When ever I try to connect to server through Microsoft sql server management studio express then an error is generated saying that
Cannot connect to .//SQLEXPRESS
Additional Information
A network related or instance specfic error occured while connecting to SQL server. The server not found or not accessible verify that instance name is correct and that SQL server is configured to allow remote connections.(Provider: Named Pipes Provider, error 40-could not open connection to SQL server )(Microsoft SQL server, Error:53)
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Feb 25, 2010
Is there a way to connect the database PROGRAMMATICALLY without using SYSTEM.DATA.SQLCLIENT?
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Mar 29, 2010
I am trying to host my website developed on ASP.NET framework 3.5. this website project is working perfectly on my system in local host enviorment. but when I try to upload it to hosting server ( mochahost.com-- hosting server) it is creating problem.
I have uploaded all the webpages to standard folder, created the database using script file, I can see the table and data through Plesk control panel, so database creation is not the problem. I have change the connection string in web.config file according to the template given on the site.
here's the connection string I am using:
<connectionStrings>
<add name="JJMCONDO" providerName="System.Data.SqlClient" connectionString="data source=db200.my-hosting-panel.com;Initial Catalog=ahalyam1_varun;User ID=xxxxx;Password=xxxx" />
</connectionStrings>
where JJMCONDO is the connection name
database name: ahalyam1_varun
[Code]....
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Apr 14, 2010
When i go to insert data into the sql server db i get an error when it tries to connect.
Heres the code
string sConnectionString = "Integrated Security=SSPI;Initial Catalog=;Data Source=localhost";
SqlConnection objConn = new SqlConnection(sConnectionString);
objConn.Open();
It is on an on button click event.
The area that shows up in the error message is
objConn.Open();
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Feb 14, 2011
I'm trying to write a method in VB.net so that when I click a button it queries the database and returns all the values which match a textbox which is located next to the button. I have no idea how to do this, I assume in the onclick method for the button I will need to pull in the value from the textbox, connect to the database and display the results to a gridview?
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Feb 16, 2010
I have a SQL server in my office. I can connect from my home development workstation website to the remote SQL server with no problems but when I upload the site to the web host and try and use the same SQL server it fails with 'A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible'
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Apr 6, 2010
I would like to do a connection of asp.net page with Sql Server. Here I would like to read the Windows user account name and pass in the connection.The connection should be Windows authentication. IIS server and Sql server are installed in different machine. Here I am able to connect locally, When I am running from server, It takes windows account of Server.
so i can read local account(Where user is accessing the web application) and make windows authentication sql server connection.
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Mar 19, 2010
Is it possible to send the selected value of a web part to a SqlDataSource that fills a DetailsView?
I have a few web parts on a SharePoint page that link together, but I need to call a VB procedure when a certain link is clicked. I was hoping to achieve this through a DetailsView.
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Feb 2, 2010
Background: I use SQL server 2005 developer edition and visual studio 2008. Visual studio 2008 is running on a local machine with Vista business edition. SQL server is running on a remote server using Windows server 2003. Both computers are within the same domain.
Problem: First, I used the server explorer to connect to the SQL server. Everything works as desired. Then I write code to do the same thing. I keep getting the following error message:
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: 25 - Connection string is not valid)
However, I used the exactly identical connection string as the one used in the server explorer. So connection string should not be the problem. In addition, I tried the test code in MSDN, which tells whether my domainusername can flow the network. It turns out the user name is fine. I also went to the SQL server management studio and found the login for my computer is NVCWeihao while my computer login name is NVCweihao. I am wondering if this uppercase letter really affects the connection.
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Dec 6, 2010
[Code]....
I'm getting the following error when attaching to my database on line. I'm not sure what the issue is as I've been able to connect in the past without any issues and there haven't been any changes to my connection string. Here is the error and my webconfig.
[Code]....
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Mar 2, 2010
I'm trying to figure out if it's possible to transfer records from SQL central database (who has a public IP address) into SQL local database (who doesn't have a public IP)?
or if it's not possible can I use a centralized website instead to pass some data into the local website? (but i'm not sure if it will have some security concerns)..
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May 30, 2010
i would like to ask about how to sync data from client sybase database import to our sql server database regularly(set time to sync everyday) by create a file in our sql server database
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Jan 17, 2011
I come from a coldfusion background, where setting up a connection to a database (Oracle, MYSQL SQL Server etc) was was easy as filling in a few fields in the datasource screen in the Coldfusion Administrator web app.
Then in the web application to connect to the database I would use <CFQUERY datasource="oracledb" name="test"> and in the body of the application I would write my SQL query and display the results of this query in a <CFOUTPUT>#variablename#</cfoutput> block of code, or to insert data into a db table I would use the
<CFQUERY datasource="oracledb" name="insertdata">
INSERT INTO table (columnname, columnname2, columnname3)
VALUES (
<cfqueryparam cfsqltype="cf_sql_number" value="#columnname#">,
<cfqueryparam cfsqltype="cf_sql_varchar" value="#columnname2#">,
<cfif isdefined("file.serverFile")>'#file.serverFile#'<cfelse>NULL</cfif>,
</cfquery>
How does this process work in .NET? as I have to create a simple web application/form where on submission of the form the data would be stored in a MYSQL database.
what I have seen so far it seems a far more long winded and complicated process with .NET over Coldfusion with ultimately the same result, and I am desperately trying to understand how it works in .NET as surely it must be a similar process to that of Coldfusion?
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Jun 12, 2010
I'm trying to learn how to do both of them at the same time on my own, while working on a project. All the examples in the MSDN are using databases that are a local SQL Server (Express) file. I am not going to be able to just upload the project (including the file) and have it work, am I? The thing is - I want to be able to write code vs. a database that is actually going to work online so I can start putting a project together and know that it is going to work online.
I don't want to get everything done, and then discover it breaks as soon as I upload everything. Assuming I can't just upload the database file and have it work - I have a hosting account that I am using for something else and I would like to set up a database to use (preferably MySQL because my SQL Server database quota is used up and I'd have to pay extra for another, but I will if I have to because it's not that much). I can do that, correct?
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