You can connect to a Microsoft SQL Server database using the SqlDataSource control. To do so, you need a connection string and access rights to a SQL Server database.

Connection string in.NET 2.0 config file In the appSettings location, add a key named whatever you like to reference your connection string to. To read the connection string from code, use the ConfigurationSettings class. String connStr = ConfigurationSettings.AppSettings('myConnectionString'); Now you have the connection string loaded from web.config into your string variable in code. Connection string in.NET 3.5 (and above) config file Do not use appsettings in web.config. Instead use the connectionStrings section in web.config.

To read the connection string into your code, use the ConfigurationManager class. String connStr = ConfigurationManager. Arma 2 Server Cfg S. ConnectionStrings['myConnectionString'].ConnectionString.

[Note: This post is a preliminary version of a document that has been published on MSDN. The published version with changes resulting from the comments received is now available. Thanks to everyone who sent comments about this version.] This is one of a series of posts that present preliminary versions of pages that will eventually be published on MSDN. These pages are a work in progress and suggestions for improvements or corrections are welcome. Sherwin Gardner Nascent Rar here.

The intended audience is newcomers to ASP.NET and the purpose is to provide basic guidance for making data access choices for ASP.NET application development. Please forgive the less than ideal formatting -- the HTML for this post was generated by tools that weren't designed for blog publishing. I corrected some of the deficiencies but did not fix all of them. The series includes: • • • • • -- Tom Dykstra ASP.NET User Education This topic provides examples of SQL Server connection strings for typical ASP.NET web application scenarios. It also includes instructions for converting connection strings created by Visual Studio project templates between SQL Server Express and LocalDB. The remaining sections of the topic explain some of the more common connection string settings. This topic contains the following sections: • • • • • • • • • • Connection String Examples The examples show the connection strings as they appear in the ConnectionStrings element of the Web.config file, where the connectionString attribute must be accompanied by a providerName attribute.

In all of these examples, if you are using Entity Framework Code First, ConnectionStringName is typically the name of the context class. You can also construct connection strings in code by using the API for SQL Server Express, LocalDB, SQL Server, or SQL Database. There is no corresponding API for SQL Server Compact.

Connection strings are not wrapped to multiple lines in the Web.config file but are done so here due to limitations of this blog. • SQL Server Express database that is defined in the local SQL Server Express instance. The example assumes that you are connecting to the default SQL Server instance on the server. Serial Key Euro Truck Simulator 2. For more information, see,,, and later in this topic.

• SQL Server database using integrated security (log on to the server using the credentials of the Windows user account). The part before the first ' symbol specifies the conceptual model, data schema, and mapping information that is stored in the.edmx file. The part between the two ' symbols is the database connection string. In this example, the database connection string is the same as the one for SQL Server using SQL Server security. ContextClass in this example represents the fully qualified context class name (for example, namespace.classname). For more information about Entity Framework Database First or Model First connection strings, see.

Project templates for Visual Studio 2010 and Visual Web Developer 2010 Express create connection strings that specify SQL Server Express databases. To convert one of these connection strings to LocalDB, make the following changes: • Change ' Data Source=.

SQLEXPRESS' to ' Data Source=(LocalDB V11.0)'. This change assumes that you installed LocalDB with the default instance name. For more information, see later in this topic. • Remove ' User Instance=True' if it is present. Also remove the preceding or following semicolon (;). Project templates for Visual Studio 2012 and Visual Studio Express 2012 for Web create connection strings that specify LocalDB databases.

To convert one of these connection strings to SQL Server Express, make the following changes: • Change ' Data Source=(LocalDB) V11.0' to ' Data Source=. This change assumes that you installed SQL Server Express with the default instance name. For more information, see later in this topic.