AdoDotNetConnectionSupport Members
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Provides a managed implementation of the DataConnectionSupport, DataCommand, and DataTransaction classes using the ADO.NET IDbConnection, IDbCommand, and IDbTransactioninterfaces, respectively; also provides a simple way to supply an implementation of the DataSourceVersionComparerclass.
The AdoDotNetConnectionSupport type exposes the following members.
Constructors
Name
Description
.gif "Public method")
Class constructor. Initializes an instance of the AdoDotNetConnectionSupport class with a specified ADO.NET provider name.
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Methods
Name
Description
Initiates a transaction and returns the new current transaction level.
Closes the specified data connection. (Overrides DataConnectionSupport.Close().)
Commits a transaction and returns the new current transaction level.
Compares two data-source version strings and returns a value indicating whether one is less than, equal to, or greater than the other.
.gif "Protected method")
Creates a DataSourceInformation object instance.
CreateObjectIdentifierConverter
Creates a DataObjectIdentifierConverter object instance.
Creates a object instance.
Creates a DataParameter object.
Derives parameters that can be specified for a given command
Derives the schema returned from a specified command, indicating the layout of items and blocks in a given data reader.
Overloaded. Releases all resources held by the data connection.
Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
Executes a specified command, optionally with parameters, and returns results as a DataReader object.
Executes a command, optionally with parameters, but does not request results, instead returning an integer indicating the outcome of the call.
Finalizes the connection. (Inherited from DataConnectionSupport.)
Serves as a hash function for a particular type. (Inherited from Object.)
Overloaded.
Overloaded. Enables retrieving implementation services.
Gets the type of the current instance. (Inherited from Object.)
Initializes the specified ADO.NET connection using a specified provider. (Overrides DataConnectionSupport.Initialize(Object).)
Creates a shallow copy of the current Object. (Inherited from Object.)
Raises the SiteChanged event. (Inherited from ServiceProviderWithSite.)
Opens the specified data connection. (Overrides DataConnectionSupport.Open(Boolean).)
Prepares the specified command on the data source to be executed; the command may be executed multiple times, with varying parameters.
Raises the MessageReceivedevent on the enclosing DataConnection instance. (Inherited from DataConnectionSupport.)
Raises the state changed event on the enclosing DataConnection instance. (Inherited from DataConnectionSupport.)
Rolls back, or voids, a transaction and returns the new current transaction level.
Returns a string that represents the current object. (Inherited from Object.)
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Properties
Name
Description
.gif "Protected property")
Retrieves the main IDbCommand object being used for executing commands on this connection.
Retrieves the IDbConnection object being used by the current connection support instance.
.gif "Public property")
Retrieves or sets a string representation of information required to establish a specified data source connection. (Overrides DataConnectionSupport.ConnectionString.)
Retrieves or sets the amount of time, in seconds, to wait to establish a connection before terminating the attempt and generating a timeout error. (Overrides DataConnectionSupport.ConnectionTimeout.)
Retrieves the current transaction level.
Retrieves the IDbCommand instance currently being used for execution.
Retrieves a list of IDbCommand objects that have been previously prepared.
Retrieves the underlying provider object for the specified connection. (Overrides DataConnectionSupport.ProviderObject.)
Retrieves a list of service types used to convert the unmanaged QueryService method call, in which a service GUID is specified, into a managed IServiceProvider.GetService method call, in which a managed type is specified. (Inherited from ServiceProvider.)
Retrieves or sets the site object instance. (Inherited from ServiceProviderWithSite.)
Retrieves the state of the data connection. (Overrides DataConnectionSupport.State.)
Retrieves the current IDbTransaction, if any.
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Events
Name
Description
.gif "Public event")
Event raised when the Site property has changed. (Inherited from ServiceProviderWithSite.)
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Explicit Interface Implementations
Name
Description
.gif "Explicit interface implemetation")
.gif "Private method")
Retrieves the last site set using the IObjectWithSite.SetSite method. If there is no known site, an exception is thrown. (Inherited from ServiceProviderWithSite.)
Performs as a factory for services that are exposed through an implementation of IServiceProvider. (Inherited from ServiceProvider.)
Provides a site's IUnknown pointer to a given object. (Inherited from ServiceProviderWithSite.)
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