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Occurs when an application attempts to delete a record and an exception is raised.

type TDataSetErrorEvent = procedure(DataSet: TDataSet; E: EDatabaseError; var Action: TDataAction) of object;
property OnDeleteError: TDataSetErrorEvent;

Write an OnDeleteError event handler to handle exceptions that occur when an attempt to delete a record fails.

DataSet is the dataset that failed to delete a record. E is a pointer to the database error object that contains the exception error message so that an application can display an error message. Action indicates how the dataset should respond to the error.

When OnDeleteError is first invoked, Action is always set to daFail. If the error handler can correct the error condition that caused the handler to be invoked, set Action to daRetry before exiting the handler. When Action is daRetry, the delete operation is tried again. If the error condition cannot be corrected, the display of the error message can be suppressed, if desired, by setting Action to daAbort instead of daFail.

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