For example, if you set a connection string that includes "Database= AdventureWorks", and then reset the connection string to "Data Source=myserver Integrated Security=true", the Database property is no longer set to "AdventureWorks". Resetting the ConnectionString on a closed connection resets all connection string values (and related properties) including the password. If a server name is not specified, a connection will be attempted to the default instance on the local computer. To connect to a local computer, specify "(local)" for the server. SqlConnection properties return only those settings that are contained in the ConnectionString. In this case, none of the properties are updated. When the connection string is set, these properties are updated, except when an error is detected. Many of the connection string values have corresponding read-only properties. The ConnectionString property can be set only when the connection is closed. For more information, see Connection String Builders. Use the new SqlConnectionStringBuilder to construct valid connection strings at run time. "Persist Security Info=False Integrated Security=true Initial Catalog=Northwind server=(local)" The following example illustrates a typical connection string. You can use the ConnectionString property to connect to a database.
Sql server client resets connection password#
NET Framework Data Provider for SQL Server does not persist or return the password in a connection string unless you set Persist Security Info to true. Unlike OLE DB or ADO, the connection string that is returned is the same as the user-set ConnectionString, minus security information if the Persist Security Info value is set to false (default). The ConnectionString is similar to an OLE DB connection string, but is not identical. Return "Data Source=MSSQL1 Initial Catalog=AdventureWorks " you can retrieve it from a configuration file. To avoid storing the connection string in your code, Static private string GetConnectionString() Using (SqlConnection connection = new SqlConnection())Ĭonnection.ConnectionString = connectionString Ĭonsole.WriteLine("State: ", String connectionString = GetConnectionString() The following example creates a SqlConnection and sets the ConnectionString property before opening the connection. An invalid connection string argument has been supplied, or a required connection string argument has not been supplied.
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