EhLib
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What is EhLib

EhLib is library that contains components and classes for Borland Delphi versions 7, 8 & 9 , Borland Developer Studio 2006, CodeGear Delphi 2007, RAD Studio 2009, Embarcadero RAD Studio 2010, XE-XE4. 

 

The most significant components and classes are:

 
TDBGridEh 
TDBGridEh displays and manipulates records from a dataset in a tabular grid. TDBGridEh provides all functionality of TDBGrid and adds several new features.
See also:
TDBGridEhCenter class - Controls global behavior of all DBGridEh components.
 
 
TDBVertGridEh 
TDBVertGridEh Component is a Vertical Grid. The component is used to display and edit a single record DataSet in a vertical orientation. The data is displayed in two columns. The first column displays the names of the fields in the second field values of the current record.
 
 
TPrintDBGridEh 
TPrintDBGridEh intended for preview and print of TDBGridEh component.
 
 
TDBLookupComboboxEh 
TDBLookupComboBoxEh represents a combo box that identifies a set of field values in one dataset with a corresponding set of values from another dataset. TDBLookupComboBoxEh provides all functionality of TDBLookupComboBox and adds several new features.
 
 
TDBEditEh 
TDBEditEh represent single-line or multi-line edit control that can display and edit text information, it can be as data-aware as no data-aware.
 
 
TDBDateTimeEditEh 
TDBDateTimeEditEh represent single-line edit control that can display and edit a datetime information, it can be as data-aware as no data-aware.
 
 
TDBComboBoxEh 
TDBComboBoxEh represents combo box control, it can be as data-aware as no data-aware.
 
 
TDBNumberEditEh 
TDBNumberEditEh represent single-line edit control that can display and edit numerical information, it can be as data-aware as no data-aware.
 
 
TDBCheckBoxEh 
TDBCheckBoxEh represents a check box that can be on (checked) or off (unchecked), it can be as data-aware as no data-aware. 
 
TDBSumList 
TDBSumList for totaling records in a TDataSet with visible dynamic changes. 
 
TPreviewBox 
TPreviewBox lets you create a customizable runtime preview. 
 
TPrinterPreview object 
TPrinterPreview represent the tool to hold and to show printable data in preview box. 
 
TPropStorageEh 
TPropStorageEh allows component properties to/from settings storage such as ini files, registry etc. 
 
TIniPropStorageManEh 
TIniPropStorageManEh redirect stored component properties to/from ini file. 
 
TRegPropStorageManEh 
TRegPropStorageManEh redirect stored component properties to/from registry. 
 
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 properties 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 program 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. 
 
TADOConnectionProviderEh 
Provides the interface between the component TADODataDriver and TADOConnection in Design-Time and Run-Time. Contains built-in TADOConnection component. Specifies the type of server data for the correct operation of additional server operations, such as getting the value of the incremental table fields after inserting record, etc. 
 
TDBXConnectionProviderEh 
Provides the interface between TDBXDataDriver and TSQLConnection in Design-Time and Run-Time. Contains built-inTSQLConnection component. Specifies the type of server data for the correct operation of additional server operations, such as getting the value of the incremental table fields after inserting record, etc. 
 
TIBXConnectionProviderEh 
Provides the interface between the component TIBXDataDriver and TIBDatabase in Design-Time and Run-Time. Contains built-in TIBDatabase component. 
 
TBDEConnectionProviderEh 
Provides the interface between the component TBDEDataDriver and TDatabase in Design-Time and Run-Time. Contains built-in TDatabase component. Specifies the type of server data for the correct operation of additional server operations, such as getting the value of the incremental table fields after inserting record, etc. 

 

See mode details in the section: Introduction

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