class TVecColumn : public TCollectionItem;
TVecColumns collection item.
Provides connection between dataset field and TVec object. By connecting TVecColumn to a specific dataset field you can load values from numeric field or BLOB field to TVecColumn::Vector, or save values from TVecColumn::Vector to numeric or BLOB field. TVecColumns
Constructors
| Name | Description |
|---|---|
| TVecColumn |
Destructors
| Name | Description |
|---|---|
| ~TVecColumn |
Properties
| Name | Type | Description |
|---|---|---|
| AfterReadDataset | TNotifyEvent | Event triggered after the ReadDataset. |
| Dataset | TDataSet* | |
| Field | TField* | |
| FieldName | System::UnicodeString | Defines the name of field in dataset. |
| Vector | TVec* | Stores the underlying dataset field numeric or BLOB values. |
Methods
| Name | Description |
|---|---|
| Assign | |
| FillFieldItems | |
| GetAfterReadDataset | |
| GetField | |
| GetFieldName | |
| GetVector | |
| ReadDataset | Reads the contents of underlying field and stores it's contents in vector. |
| SetAfterReadDataset | |
| WriteDataset | Writes the contents of the Vector vector to dataset. |
Fields
| Name | Type | Description |
|---|---|---|
| FReadWriteMode | TReadWriteMode | |
| IUpdating | bool |