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TDataSetCancel cancels the current edit mode for a DataSet.
Source position: dbactns.pp line 88
type TDataSetCancel = 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 Cancel 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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TDataSetCancel cancels the current edit mode for a 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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TDataSetCancel is a TDataSetAction descendant which cancels the current edit mode for a dataset record in its DataSource. This includes restoring the values in records to their pre-editing content, updating the record display, and removing any edit mode(s) assigned to the State property in the dataset. TDataSetCancel can be added to an action list and assigned to controls which perform the corresponding action.
TDataSetCancel 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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TDataSetFirst moves to first record in the DataSet. |
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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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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 |