System.Data [00 00 00 00 00 00 00 00 04 00 00 00 00 00 00 00] 1.0.3300.0 1.0.5000.0 2.0.0.0 Gtk# is thread aware, but not thread safe; See the <link location="node:gtk-sharp/programming/threads">Gtk# Thread Programming</link> for details. System.Data.Common.DBDataPermission

The property takes precedence over the property. Therefore, if you set to false, you must also set to false to prevent a user from making a connection using a blank password.

When using code access security permissions for ADO.NET, the correct pattern is to start with the most restrictive case (no permissions at all) and then add the specific permissions that are needed for the particular task that the code needs to perform. The opposite pattern, starting with all permissions and then denying a specific permission, is not secure, because there are many ways of expressing the same connection string. For example, if you start with all permissions and then attempt to deny the use of the connection string "server=someserver", the string "server=someserver.mycompany.com" would still be allowed. By always starting by granting no permissions at all, you reduce the chances that there are holes in the permission set.

Enables the .NET Framework Data Provider for SQL Server to help make sure that a user has a security level sufficient to access a data source.

- Constructor
  To be added

  Initializes a new instance of the class.

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  System.Obsolete("Use SqlClientPermission(PermissionState.None)", true)
- Constructor
  To be added

  Initializes a new instance of the class.

  One of the values.
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- Constructor

  The enumeration takes precedence over the property. Therefore, if you set to false, you must also set to None to prevent a user from making a connection using a blank password. For an example demonstrating how to use security demands, see Code Access Security and ADO.NET.

  Initializes a new instance of the class.

  One of the values.
  Indicates whether a blank password is allowed.
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  System.Obsolete("Use SqlClientPermission(PermissionState.None)", true)
- Method
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  System.Void `` `` ``

  Use this method to configure which connection strings are allowed by a particular permission object. For example, use the following code fragment if you want to only allow a specific connection string and nothing else:

  permission.Add("server=MyServer; database=MyDatabase; Integrated Security=true", "", KeyRestrictionBehavior.AllowOnly)

  The following example allows connection strings that use any database, but only on the server named MyServer, with any user and password combination and containing no other connection string keywords:

  permission.Add("server=MyServer;", "database=; user id=; password=;", KeyRestrictionBehavior.AllowOnly)

  The following example uses the same scenario as above but allows for a failover partner that can be used when connecting to servers configured for mirroring:

  permission.Add("server=MyServer; failover partner=MyMirrorServer", "database=; user id=; password=;", KeyRestrictionBehavior.AllowOnly)

  When using code access security permissions for ADO.NET, the correct pattern is to start with the most restrictive case (no permissions at all) and then add the specific permissions that are needed for the particular task that the code needs to perform. The opposite pattern, starting with all permissions and then trying to deny a specific permission, is not secure, because there are many ways of expressing the same connection string. For example, if you start with all permissions and then attempt to deny the use of the connection string "server=someserver", the string "server=someserver.mycompany.com" would still be allowed. By always starting by granting no permissions at all, you reduce the chances that there are holes in the permission set.

  Adds a new connection string and a set of restricted keywords to the object.

  The connection string. The key restrictions. One of the enumerations.
- Method
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  System.Security.IPermission To be added.

  Returns the as an .

  A copy of the current permission object.