RAD Studio VCL Reference
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Gets and sets the size of the parameter value in bytes.
property Size: Integer;
__property int Size;
Size is an Int32 type used for binary and string types. Size is ignored for fixed length data types. For Unicode, Size is the number of characters, not bytes. Size does not include any string terminating characters.
Size and DbType can be inferred if Value is set, but they are not explicitly set by setting Value.
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