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[Properties (by Name)] [Methods (by Name)] [Events (by Name)]
Field class for native variant data
Source position: db.pas line 900
type TGuidField = class(TStringField) |
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class procedure CheckTypeSize(); override; |
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protected |
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function GetDefaultWidth; override; |
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function GetAsGuid; |
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procedure SetAsGuid(); |
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public |
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constructor Create(); override; |
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Create a new instance of the TGUIDField class |
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Field content as a GUID value |
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end; |
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Field class for native variant data |
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Field class to handle ansistring fields |
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Provide access to the contents of a single field in a record |
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TGUIDField is the class used when a dataset must manage native variant-typed data. (TField.DataType equals ftGUID). It initializes some of the properties of the TField class and overrides some of its methods to be able to work with variant data. It also adds a method to retrieve the field value as a native TGUID type.
It should never be necessary to create an instance of TGUIDField manually, a field of this class will be instantiated automatically for each GUID field when a dataset is opened.
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Base class for records-based data-access |
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Provide access to the contents of a single field in a record |
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Field content as a GUID value |
| lazarus-ccr.sourceforge.net |