Use the Jet OLEDB:Database
Password
attribute in the connection string to
specify the password.
The sample code contains a single event handler:
- Connect
Button.Click
Creates and opens a connection to a password-secured Microsoft Access database using the OLE DB .NET data provider. Information about the database is displayed from the properties of the
OleDbConnection
object.
The C# code is shown in Example 1-3.
Example 1-3. File: AccessPasswordForm.cs
// Namespaces, variables, and constants using System; using System.Configuration; using System.Text; using System.Data; using System.Data.OleDb; // . . . private void connectButton_Click(object sender, System.EventArgs e) { StringBuilder result = new StringBuilder( ); // Build the connections string incorporating the password. String connectionString = ConfigurationSettings.AppSettings["MsAccess_Secure_ConnectString"]+ "Jet OLEDB:Database Password=" + passwordTextBox.Text + ";"; result.Append("ConnectionString: " + Environment.NewLine + connectionString + Environment.NewLine + Environment.NewLine); OleDbConnection conn = new OleDbConnection(connectionString); try { conn.Open( ); // Retrieve some database information. result.Append( "Connection State: " + conn.State + Environment.NewLine + "OLE DB Provider: " + conn.Provider + Environment.NewLine + "Server Version: " + conn.ServerVersion + Environment.NewLine); conn.Close( ); result.Append("Connection State: " + conn.State); } catch(System.Data.OleDb.OleDbException ex) { conn.Close( ); result.Append("ERROR: " + ex.Message); } resultTextBox.Text = result.ToString( ); }
A Microsoft Access database password requires that users enter a password to obtain access to the database and database objects. This is also known as share-level security. A password does not allow groups or users to have distinct levels of access or permissions. Anyone with the password has unrestricted access to the database.
The Set
Database
command
from the Tools → Security menu is used to set up a
database password.
The OLE DB provider for Microsoft Jet has several provider-specific
connection string attributes in addition to those defined by ADO.NET.
To open a database secured by a Microsoft Access database password,
use the Jet
OLEDB:Database
Password
attribute in the connection string to
specify the password. This corresponds to the OLE DB property
DBPROP_JETOLEDB_DATABASEPASSWORD
.
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