TdxBackendCustomDataConnection Class
The base class for all report data connection components.
Declaration
TdxBackendCustomDataConnection = class abstract(TcxComponentCollectionItem)Remarks
A data connection component is designed to bind a supported client component to data stored in memory or a database.
Main API Members
The list below outlines key members of the TdxBackendCustomDataConnection class. These members allow you to configure core data connection settings.
Data Connection Settings
- Active
- Specifies if the data connection is active.
- DisplayName
- Specifies the data connection’s name both in template/layout designer and Collection Editor dialogs.
General-Purpose API Members
- Collection | Index
- Specify the parent collection component.
Direct TdxBackendCustomDataConnection Class References
The following public API members reference data connection components as a TdxBackendCustomDataConnection object:
- TdxBackendDataConnectionCollection.Add
- Creates a data connection of the required type and ads the connection to the collection.
- TdxBackendDataConnectionCollection.Items
- Provides indexed access to all data connection components stored in the collection.
- TdxBackendDataConnectionManager.Items
- Provides indexed access to stored data connection components.
- TdxBackendCustomDataConnectionClass
- A reference to a backend data connection component class.
Tip
You need to cast a returned TdxBackendCustomDataConnection object to the corresponding terminal descendant class to acess all public API members.
Call the ClassType function or use any other RTTI functionality to identify the actual data connection component type.
Terminal TdxBackendCustomDataConnection Class Descendant
Do not use the TdxBackendCustomDataConnection class directly. Use the following descendants instead:
- TdxBackendInMemoryJSONConnection
- A component designed for interaction with data stored in memory.
- TdxBackendDataSetJSONConnection
- A component designed to fetch data from one or multiple datasets (TDataSet descendant instances).
- TdxBackendDatabaseSQLConnection
- A component designed to fetch data from an SQL database (SQL Server, PostgreSQL, SQLite, etc.).