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RAD Studio VCL Reference
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TBlobField.Modified Property
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RAD Studio VCL Reference
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Indicates whether a the value for the BLOB field was changed since it was last read from the underlying database.
property Modified: Boolean;
__property Boolean Modified;
If the value of the BLOB field is set by using the properties or methods of TBlobField, the BLOB stream returned by a dataset's CreateBlobStream method, or a data-aware control, Modified is automatically set to true. Set Modified to true when changing the value of a BLOB field using direct Borland Database Engine (BDE) API calls.
BLOB fields use the Modified property to trigger data events and to indicate when the dataset may need BDE needs to clean up any buffers used to store BLOB data.
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Description