EhLib 4.2 contains components and classes for Borland Delphi 4-9, 2005, 2006, Borland C++ Builder 4-6 and CodeGear Delphi 2007, intended to increase capacity of the client part of database application in part of interaction with applications user (See screenshots).

	TDBGridhEh		TDBGridEh provides all functionality of TDBGrid component and adds many new features.
	TPrintDBGridEh		TPrintDBGridEh provides properties and routines for preview and print of TDBGridEh component
	TDBLookupComboboxEh		TDBLookupComboboxEh provides all functionality of TDBLookupCombobox component and adds several new features
	TDBEditEh		TDBEditEh is to enable users to edit a internal string value or a database field
	TDBDateTimeEditEh		TDBDateTimeEditEh is to enable users to edit a internal date or time value or a database datetime field.
	TDBComboBoxEh		TDBComboBoxEh component is an edit box with a scrollable drop-down list attached to it. Users can select an item from the list or type directly into the edit box.
	TDBNumberEditEh		TDBNumberEditEh to enable users to edit a internal numeric value or a database numeric field.
	TDBSumList		TDBSumList is intended for totaling sums and amounts of records in a TDataSet with dynamic watching a changing.
	TPreviewBox		TPreviewBox lets you create a customizable runtime preview.
	TPrinterPreview	(no visual object)	TPrinterPreview lets you to record printable data in buffer for following output them on screen and to printer.
	TPropStorageEh		Realize technology to store components properties to/from settings storage such as ini files, registry etc.
	TMemTableEh		Dataset, which hold all data in memory.
	TDataDriverEh		Delivers records in TMemTableEh. Processes records, changed in TMemTableEh (writes them in other dataset, or call events for processing the changes to the program).
	TDataSetDriverEh		DataDriver, that delivers records in TMemTableEh from other DataSet. Processes records, changed in TMemTableEh writing them in other DataSet.
	TSQLDataDriverEh		DataDriver that have properies to keep four SQL expressions and parameters for querying data, removing a record, insertions record, updating record and querying one record. TSQLDataDriverEh can not requests data from server, but can prepare parameters of the request and call global event, where programm can transfer SQL expression on the server.
	TBDEDataDriverEh		DataDriver, which interacts with the DB server using BDE data driver.
	TIBXDataDriverEh		DataDriver, which interacts with the DB server using IBX data driver.
	TDBXDataDriverEh		DataDriver, which interacts with the DB server using DBX data driver.
	TADODataDriverEh		DataDriver, which interacts with the DB server using ADO data driver.