What is the default connection string for ASP.NET applications?
I have written a simple ASP.NET application which uses Membership framework, but I haven't specified "connectionString" in my web.config. Nevertheless, the application is able to connect to a database. What database it connects to? What's the connection string for it and where it is located in my filesystem?
Thanks.
The default generated connection-string for a ASP.NET MVC3 application is
<configuration>
<connectionStrings>
<add name="ApplicationServices" connectionString="data source=.\SQLEXPRESS;Integrated Security=SSPI;AttachDBFilename=|DataDirectory|aspnetdb.mdf;User Instance=true" providerName="System.Data.SqlClient" />
</connectionStrings>
</configuration>
The file is located in the App_Data folder in the websites root
Related
I have created an instance of ASP.NET Web Forms in my Microsoft Visual Studio. By default the program generates user login page and registration which are linked to the .mdb file.
I want to reconfigure the standard connection and link it to my instance of MSSQL 2012 SQLExpress server.
How can I do it?
Ok so I will give some direction and link you to a page.
First let me ask you this the connection you are using presently is it in a web.config file. If so this is where you will change the server/instance and database/catalog name.
Web.Config modification for SQL Server Instance
or this link
Web Config modification for SQL Express 2
So if you in the web.config file you should see something similar to this.
<ConnectionStrings>
<add name="" connectionString="Server=(localhost)\SqlExpress;Max Pool Size=300;Initial Catalog=database;User ID=username;Password=password;" providerName="System.Data.SqlClient"/>
</Connectionstrings>
or
<connectionStrings>
<add name="DefaultConnection" connectionString="Data Source= (LocalDb)\MSSQLLocalDB;AttachDbFilename=|DataDirectory|\database.mdf;Initial Catalog=database;Integrated Security=True" providerName="System.Data.SqlClient" />
you need to change the follow:
Server or Data Source
and
Initial Catalog or AttachDbFilename
Now your credentials you may use any username and password that has access to the sql server express instance.
I hope this helps.
I have to deploy ASP.Net application with remote database connection in IIS server.
Deployment has worked fine without database. And I was able to run that application on the IIS server.
Coming to the application with remote database I have given the connection string in C# code. And it is connected.
My web.config has thsi connection string :
<configuration>
<connectionStrings>
<add name="ApplicationServices"
connectionString="data source=.\SQLEXPRESS;Integrated Security=SSPI;AttachDBFilename=|DataDirectory|\aspnetdb.mdf;User Instance=true"
providerName="System.Data.SqlClient" />
</connectionStrings>
I have replaced that with my database connection credentials as follows:
<configuration>
<connectionStrings>
<add name="ApplicationServices"
connectionString="Data Source=RemoteHost,1433;Initial Catalog=DBNAME;user Id=MyUserId;Password=MyPassword"
providerName="System.Data.SqlClient" />
</connectionStrings>
In Package/Publish options I have selected (Import from web.config) and deployed that. Then I got the following error:
Web deployment task failed.(Object of type 'dbFullSql' and path 'Data
"Data Source=RemoteHost,1433;Initial Catalog=DBNAME;user
Id=MyUserId;Password=MyPassword" cannot be created.)
Object of type 'dbFullSql' and path "Data Source=RemoteHost,1433;Initial Catalog=DBNAME;user
Id=MyUserId;Password=MyPassword" cannot be created.
The source is invalid.
Script failed for Database 'DBNAME'.
Script failed for Database 'DBNAME'.
Index was outside the bounds of the array.
I am new to ASP.Net. Anybody please help me.
Thank you in advance
I think you didn't configure Web deployment package correct you can do that right Click on Project ,Select Properties and go to package/Publish SQL
I have add link for Walkthrough: Deploying a Web Application Project Using a Web Deployment Package (Part 1 of 4) for VS2010
http://msdn.microsoft.com/en-us/library/dd483479(v=vs.100).aspx
I added database file to my built in sql server of Visual Studio and i have also connection string of it but i am confuse how to add this connection string into web.config
here is my try to add connection string to code below :
<connectionStrings>
<add name="myFirstConnectionString" connectionString="Data Source= .\SQLEXPRESS;AttachDbFilename="C:\Users\Ahdus\Desktop\First Task\First Task\MyFirstTask.mdf"; Integrated Security=True;Connect Timeout=30;User Instance=TrueproviderName="System.Data.SqlClient" />
</connectionStrings>
I am much confused that how i can add connection string of my visual studio built in database file to web.config.
Please help me as i am new in asp.net and ignore my way of asking.
To make your connection string work with the path you've given, it should look somewhat like this:
Visual Studio 2012 (SQL Server 2012):
<connectionStrings>
<add name="myFirstConnectionString"
connectionString="Data Source=(LocalDB)\v11.0;Integrated Security=True;AttachDBFilename="C:\Users\Ahdus\Desktop\First Task\First Task\MyFirstTask.mdf";Integrated Security=True"
providerName="System.Data.SqlClient"/>
</connectionStrings>
Visual Studio 2010 (SQL Server 2010):
<connectionStrings>
<add name="myFirstConnectionString"
connectionString="data source=.\SQLEXPRESS;Integrated Security=SSPI;AttachDBFilename="C:\Users\Ahdus\Desktop\First Task\First Task\MyFirstTask.mdf";User Instance=true"
providerName="System.Data.SqlClient" />
</connectionStrings>
But you should consider moving the database file to the App_Data folder in your project, and then use AttachDBFilename=|DataDirectory|MyFirstTask.mdf instead.
You should place you .mdf in App_Data folder, then you can use this
<connectionStrings>
<add name="myFirstConnectionString"
connectionString="data source=.\SQLEXPRESS;Integrated Security=SSPI;AttachDBFilename=|DataDirectory|MyFirstTask.mdf;
User Instance=true" providerName="System.Data.SqlClient" />
</connectionStrings>
With C:\Users\Ahdus\Desktop\First Task\First Task\MyFirstTask.mdf, if you move your application to another machine, that path might not exist
|DataDirectory| maps to your application App_Data folder
When you create a new ASP.NET project with membership it creates the default connection string for ApplicationServices as follows:
<add name="ApplicationServices"
connectionString="data source=.\SQLEXPRESS;Integrated Security=SSPI;AttachDBFilename=|DataDirectory|aspnetdb.mdf;User Instance=true"
providerName="System.Data.SqlClient" />
Is there a way to force this to use SqlServerCe in the App_Data folder instead of creating it in sql express?
no its not possible, but you can check it via code for data source..
I got a problem. When i'm creating the new project in ASP.NET using VS 2010, it's web.config with a default connection string about SQL Express created. But i haven't even got SQL Express installed. What should i do to change the default AspNetSqlProvider to work with my instance of full-weight SQL Server as a services database? And how can i change the template for the ASP.NET project to create a project with my connection?
You mean this one:
<add name="ApplicationServices"
connectionString="data source=.\SQLEXPRESS;Integrated Security=SSPI;AttachDBFilename=|DataDirectory|\aspnetdb.mdf;User Instance=true"
providerName="System.Data.SqlClient" />
To change this into one that'll work with SQL Server, it needs to look more like this:
<add name="ApplicationServices"
connectionString="data source=ServerName;Initial Catalog=DatabaseName"
providerName="System.Data.SqlClient" />
where DatabaseName is probably aspnetdb. It'll need some form of authentication, whether you use Windows authentication (in which case you can copy the Integrated Security element from the original connection string) or SQL Server authentication (where you'll have a username/password combination).
There's great info on building connection strings at connectionstrings.com.
To fix this for your future projects, you'll need to change the template for Web Projects. Locate the folder where your C# Web templates are kept (for me this is C:\Program Files\Microsoft Visual Studio 10.0\Common7\IDE\ProjectTemplates\CSharp\Web\1033.
Take a copy of the WebApplicationProject40.zip file (you might also want to backup the original somewhere!).
Inside it you'll find the web.config file with the SQL Express connection string. Change it to a SQL Server string, and then re-assemble the zip file.
The last step is to rebuild the VS template cache - from a command-line (VS Command Prompt probably works best), run devenv /installvstemplates. See here for details.
I just had a similar problem. I had a web site created in VS 2008 and wanted to try web parts. Added some to a page, then started getting:
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.
I ran aspnet_regsql.exe (wizard, in .Net framework folder) to create the database and then I added a connection string to web.config:
<configuration>
<connectionStrings>
<add name="aspnet_membership" connectionString="Data Source=localhost; Initial Catalog=aspnetdb; Integrated Security=SSPI;"/>
</connectionStrings>
</configuration>
Then I added this to web.config:
<configuration>
<system.web>
<webParts>
<personalization defaultProvider="SqlPersonalizationProvider">
<providers>
<add name="SqlPersonalizationProvider"
type="System.Web.UI.WebControls.WebParts.SqlPersonalizationProvider"
connectionStringName="aspnet_membership"
applicationName="/" />
</providers>
<authorization>
<deny users="*" verbs="enterSharedScope" />
<allow users="*" verbs="modifyState" />
</authorization>
</personalization>
</webParts>
</system.web>
</configuration>