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Class to establish a master-detail relationship between dataset, based on parameters
Source position: db.pas line 1827
type TMasterParamsDataLink = class(TMasterDataLink) |
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public |
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constructor Create(); override; |
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Initialize a new TMasterParamsDataLink instance |
procedure RefreshParamNames; virtual; |
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Refresh the list of parameter names |
procedure CopyParamsFromMaster(); virtual; |
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Copy parameter values from master dataset. |
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Parameters of detail dataset. |
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end; |
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Class to establish a master-detail relationship between dataset, based on parameters |
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Datalink for Master-Detail relationships between datasets. |
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Represents the link between a detail data source and a master datasource. |
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Data event handling agent for controls |
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TMasterParamsDataLink is a TDataLink descendent that can be used to establish a master-detail relationship between 2 TDataset instances where the detail dataset is parametrized 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.
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Data event handling agent for controls |
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Base class for records-based data-access |
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A collection of parameter values for SQL-based datasets |
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Parameter description class |