[Overview][Constants][Types][Classes][Procedures and functions][Index] | Reference for unit 'Grids' (#lcl)

# TVirtualGrid

[Properties (by Name)] [Methods (by Name)] [Events (by Name)]

TVirtualGrid - an array of rows and columns containing data, which never gets displayed

## Declaration

Source position: grids.pas line 321

`type TVirtualGrid = class`
`protected`
`procedure doDestroyItem();` |  | doDestroyItem - method for destroying an Item at the given Row and Column location
`procedure doNewItem();` |  | doNewItem - method for producing a new item at the given location specified by Row, Col
`procedure DeleteColRow();` |  | DeleteColRow - remove either a column or a row, depending on the value of IsColumn
`procedure MoveColRow();` |  | MoveColRow - move either a column or a row (depending on value of IsColumn) at FromIndex to the location ToIndex
`procedure ExchangeColRow();` |  | ExchangeColRow - exchange either the current column or row (depending on the value of IsColumn) with the entity specified by WithIndex
`procedure InsertColRow();` |  | InsertColRow - insert either a column or a row (depending on value of IsColumn) at the specified index position
`procedure DisposeCell(); virtual;` |  | DisposeCell - dispose of the resources and pointer for the given cell
`procedure DisposeColRow(); virtual;` |  | DisposeColRow - dispose of the specified row or column, freeing its pointer
`public`
`constructor Create;` |  | Create - constructor for TVirtualGrid: calls inherited Create then creates arrays of Cells, Columns and Rows; forms links for actions and event handlers
`destructor Destroy; override;` |  | Destroy - destructor for TVirtualGrid: frees rows, columns and cells, then cals inherited Destroy
`procedure Clear;` |  | Clear the grid
`function GetDefaultCell;` |  | GetDefaultCell - returns the properties of the default cell
`function GetDefaultColRow;` |  | GetDefaultColRow - returns the properties of the default column and row
`property ColCount: Integer; [rw]` |  | ColCount - the number of columns in the current grid
`property RowCount: Integer; [rw]` |  | RowCount - the number of rows in the current grid
`property Celda: PCellProps; [rw]` |  | Celda - the current cell as defined by its column and row
`property Cols: PColRowProps; [rw]` |  | Cols - the columns to which the grid applies
`property Rows: PColRowProps; [rw]` |  | The Rows to which the grid applies
`end;`

## Inheritance

`TVirtualGrid` |  | TVirtualGrid - an array of rows and columns containing data, which never gets displayed
`TObject`

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