JVCL Help:TJvCustomAppStorage.ReadList
JVCL Help: TJvCustomAppStorage.ReadList Method
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Reads a list of items.
Pascal
functionReadList(constPath: string; constList: TObject; constOnReadItem: TJvAppStorageListItemEvent; constItemName: string = cItem): Integer;
Parameters
| Parameters | Description |
| const Path: string | Path (relative to the current path) of the value to read. |
| const List: TObject | Parameter passed to the OnReadItem event. |
| const OnReadItem: TJvAppStorageListItemEvent | Method that will read each item from the storage. |
| const ItemName: string = cItem | Parameter passed to the OnReadItem event. |
Description
ReadList reads a list of items from the storage. The result value is the number of items in the list or 0 if the list does not exist in the storage. ReadList is a general purpose method that can read any list by means of the provided read method. The specified method will be called for each item individually, specifying the list path and the item index to read. The method should read the item (which can be as simple as reading in a single value to as complex as reading in an entire group of values and/or sub lists) and process the data immediately (e.g. store it in memory or display it in a control).
See Also
TJvCustomAppStorage.ReadBinary, TJvCustomAppStorage.ReadDateTime, TJvCustomAppStorage.ReadFloat, TJvCustomAppStorage.ReadInteger, TJvCustomAppStorage.ReadString, TJvCustomAppStorage.ReadStringList, TJvCustomAppStorage.WriteList
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