| [Overview][Constants][Types][Classes][Procedures and functions][Variables][Index] |
[Properties (by Name)] [Methods (by Name)] [Events (by Name)]
Class to establish a master-detail relationship between dataset, based on parameters
Source position: db.pas line 1877
type TMasterParamsDataLink = class(TMasterDataLink) |
||
public |
||
constructor Create(); override; |
|
Initialize a new TMasterParamsDataLink instance |
procedure RefreshParamNames; virtual; |
|
Refresh the list of parameter names |
procedure CopyParamsFromMaster(); virtual; |
|
Copy parameter values from master dataset. |
|
Parameters of detail dataset. |
|
end; |
|
Class to establish a master-detail relationship between dataset, based on parameters |
|
| | | ||
|
Datalink for Master-Detail relationships between datasets. |
|
| | | ||
|
Represents the link between a detail data source and a master datasource. |
|
| | | ||
|
Data event handling agent for controls |
|
| | | ||
| | | ||
TObject |
TMasterParamsDataLink is a TDataLink descendent that can be used to establish a master-detail relationship between 2 TDataset instances where the detail dataset is parameterized using a TParams instance. It takes care of closing and opening the detail dataset and copying the parameter values from the master dataset whenever the data in the master dataset changes.
|
Data event handling agent for controls |
|
|
Base class for records-based data-access |
|
|
A collection of parameter values for SQL-based datasets |
|
|
Parameter description class |