| [Overview][Classes][Procedures and functions][Index] |
[Properties (by Name)] [Methods (by Name)] [Events (by Name)]
TDataSetFirst moves to first record in the DataSet.
Source position: dbactns.pp line 43
type TDataSetFirst = class(TDataSetAction) |
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public |
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procedure ExecuteTarget(); override; |
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Retrieves the dataset for the target datasource and calls its First method. |
procedure UpdateTarget(); override; |
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Enables or disables the action based on the state of the dataset in the target. |
published |
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property DataSource: TDataSource; |
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DataSource with the dataset for the action. |
end; |
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TDataSetFirst moves to first record in the DataSet. |
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TDataSetAction is the base class for all other standard TDataSet actions. |
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TAction is the basic action object used in the LCL. |
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TCustomAction is the ancestor class for TAction. |
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Implements an Action class which has a category and parent action list. |
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TDataSetFirst is a TDataSetAction descendant which moves to the first record in the dataset for a DataSource. TDataSetFirst can be added to an action list and assigned to controls which perform the corresponding action.
TDataSetFirst publishes the DataSource property which explicitly declares the target for the database action. The DataSource may be determined by examining a data-aware control which used the database action, and passed an an argument to the UpdateTarget and HandlesTarget methods.
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TDataSetLast moves to last record in the DataSet. |
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TDataSetNext moves to next record in the DataSet. |
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TDataSetPrior moves to previous record in the DataSet. |
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TDataSetRefresh refreshes the DataSet. |
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TDataSetCancel cancels the current edit mode for a DataSet. |
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TDataSetDelete deletes the current record in the DataSet. |
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TDataSetEdit edits the current record in the DataSet. |
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TDataSetInsert inserts (appends) a new record into the DataSet. |
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TDataSetPost posts changes for the current record to the DataSet. |
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TDataSetAction is the base class for all other standard TDataSet actions. |
| Version 3.2 | Generated 2024-02-25 | Home |