Microsoft.Deployment.WindowsInstaller.Linq

Apply to a subclass of QRecord to indicate the name of the table the record type is to be used with.

If this attribute is not used on a record type, the default table name will be derived from the record type name. (An optional underscore suffix is stripped.)

Creates a new DatabaseTableAttribute for the specified table.

name of the table associated with the record type

Gets or sets the table associated with the record type.

Apply to a property on a subclass of QRecord to indicate the name of the column the property is to be associated with.

If this attribute is not used on a property, the default column name will be the same as the property name.

Creates a new DatabaseColumnAttribute which maps a record property to a column.

name of the column associated with the property

Gets or sets the column associated with the record property.

Allows any Database instance to be converted into a queryable database.

Converts any Database instance into a queryable database.

Queryable database instance that operates on the same MSI handle. This extension method is meant for convenient on-the-fly conversion. If the existing database instance already happens to be a QDatabase, then it is returned unchanged. Otherwise since the new database carries the same MSI handle, only one of the instances needs to be closed, not both.

Queryable MSI database - extends the base Database class with LINQ query functionality along with predefined entity types for common tables.

Opens an existing database in read-only mode.

Path to the database file. the database could not be created/opened Because this constructor initiates database access, it cannot be used with a running installation. The Database object should be d after use. The finalizer will close the handle if it is still open, however due to the nondeterministic nature of finalization it is best that the handle be closed manually as soon as it is no longer needed, as leaving lots of unused handles open can degrade performance.

Opens an existing database with another database as output.

Path to the database to be read. Open mode for the database Database object representing the created or opened database the database could not be created/opened When a database is opened as the output of another database, the summary information stream of the output database is actually a read-only mirror of the original database and thus cannot be changed. Additionally, it is not persisted with the database. To create or modify the summary information for the output database it must be closed and re-opened. The returned Database object should be d after use. The finalizer will close the handle if it is still open, however due to the nondeterministic nature of finalization it is best that the handle be closed manually as soon as it is no longer needed, as leaving lots of unused handles open can degrade performance.

Opens an existing database or creates a new one.

Path to the database file. If an empty string is supplied, a temporary database is created that is not persisted. Open mode for the database the database could not be created/opened To make and save changes to a database first open the database in transaction, create or, or direct mode. After making the changes, always call the Commit method before closing the database handle. The Commit method flushes all buffers. Always call the Commit method on a database that has been opened in direct mode before closing the database. Failure to do this may corrupt the database. Because this constructor initiates database access, it cannot be used with a running installation. The Database object should be d after use. The finalizer will close the handle if it is still open, however due to the nondeterministic nature of finalization it is best that the handle be closed manually as soon as it is no longer needed, as leaving lots of unused handles open can degrade performance.

Creates a new database from an MSI handle.

Native MSI database handle. True if the handle should be closed when the database object is disposed Path of the database file, if known Mode the handle was originally opened in

Gets or sets a log where all MSI SQL queries are written.

The log can be useful for debugging, or simply to watch the LINQ magic in action.

Gets a queryable table from the datbaase.

name of the table

Queryable standard table with predefined specialized record type.

Generic record entity for queryable databases, and base for strongly-typed entity subclasses.

Several predefined specialized subclasses are provided for common standard tables. Subclasses for additional standard tables or custom tables are not necessary, but they are easy to create and make the coding experience much nicer. When creating subclasses, the following attributes may be useful: ,

Do not call. Use QTable.NewRecord() instead.

Subclasses must also provide a public parameterless constructor. QRecord constructors are only public due to implementation reasons (to satisfy the new() constraint on the QTable generic class). They are not intended to be called by user code other than a subclass constructor. If the constructor is invoked directly, the record instance will not be properly initialized (associated with a database table) and calls to methods on the instance will throw a NullReferenceException.

Gets the number of fields in the record.

Gets or sets a record field.

column name of the field Setting a field value will automatically update the database.

Gets or sets a record field.

zero-based column index of the field Setting a field value will automatically update the database.

Used by subclasses to get a field as an integer.

zero-based column index of the field

Used by subclasses to get a field as a nullable integer.

zero-based column index of the field

Dumps all record fields to a string.

Update multiple fields in the record (and the database).

column names of fields to update new values for each field being updated

Update multiple fields in the record (and the database).

column indexes of fields to update new values for each field being updated The record (primary keys) must already exist in the table. Updating primary key fields is not yet implemented; use Delete() and Insert() instead.

Inserts the record in the database.

The record (primary keys) may not already exist in the table. Use to get a new record. Prmary keys and all required fields must be filled in before insertion.

Inserts the record into the table.

true if the record is temporarily inserted, to be visible only as long as the database is open The record (primary keys) may not already exist in the table. Use to get a new record. Prmary keys and all required fields must be filled in before insertion.

Deletes the record from the table if it exists.

Not yet implemented.

Represents one table in a LINQ-queryable Database.

type that represents one record in the table This class is the primary gateway to all LINQ to MSI query functionality. The TRecord generic parameter may be the general class, or a specialized subclass of QRecord.

Infers the name of the table this instance will be associated with.

table name The table name is retrieved from a DatabaseTableAttribute on the record type if it exists; otherwise the name is derived from the name of the record type itself. (An optional underscore suffix on the record type name is dropped.)

Creates a new QTable, inferring the table name from the name of the record type parameter.

database that contains the table

Creates a new QTable with an explicit table name.

database that contains the table name of the table

Gets schema information about the table.

Gets the database this table is associated with.

Enumerates over all records in the table.

Creates a new record that can be inserted into this table.

a record with all fields initialized to null Primary keys and required fields must be filled in with non-null values before the record can be inserted. The record is tied to this table in this database; it cannot be inserted into another table or database.

Implements the LINQ to MSI query functionality.

the result type of the current query -- either some kind of QRecord, or some projection of record data

Distribution specific strings.

News URL for the distribution.

Short product name for the distribution.

Support URL for the distribution.

Telemetry URL format for the distribution.

VS Extensions Landing page Url for the distribution.