Skip to main content

DBConCount

property DBConCount: Integer read;

Example​

function HasDatabaseConnections(const Data: TvxDBDef): Boolean;
begin
  Result := Data.DBConCount > 0;
end;

Usage​

DBConCount returns the number of database-link objects currently attached to a data definition.

Additional Technical Info​

DBConCount is the current item count of the data definition's owned TvxDBLink list.

Source-backed behaviour​

The getter returns FDBCons.Count when the list exists and zero otherwise. Normal TvxDataDef construction creates the list, so the nil branch mainly protects lifecycle edges.

The count describes link objects, not successfully loaded, connected, enabled or transactional databases. Accessing a link's DBCon may still perform a lazy load and return nil. Valid indexes for DBCons are zero through DBConCount - 1 at the moment of access.

The list belongs to the data definition and can be rebuilt when modules are loaded or transferred. Do not cache the count across unrelated lifecycle operations.

  • DBCon accesses the first concrete connection.
  • DBCons accesses an individual link.
  • TvxDBLink describes each counted object.
Created 2026-07-15