vcl-dxbackend-949f7fbf.md
A reference to a backend data connection component class.
TdxBackendCustomDataConnectionClass = class of TdxBackendCustomDataConnection;
| Type | Description |
|---|---|
| TdxBackendCustomDataConnection |
The base class for backend data connection components.
|
You can use the TdxBackendCustomDataConnectionClas type to refer to the following TdxBackendCustomDataConnection class descendants:
TdxBackendInMemoryJSONConnectionA component designed for interaction with data stored in memory.TdxBackendDataSetJSONConnectionA component designed to fetch data from one or multiple datasets (TDataSet descendant instances).TdxBackendDatabaseSQLConnectionA non-visual component designed to fetch data from a relational database (SQL Server, PostgreSQL, SQLite, etc.).
The TdxBackendDataConnectionCollection.Add function accepts a TdxBackendCustomDataConnectionClass value as the AItemClass parameter.
See Also