Class: TEgFireGrid
property RowSource: TEgFireGridRowSource;Read-only, run time only. The object through which the grid reads and
writes its data. With a DataSource it
is the grid’s own dataset source, created with the grid; its class is
declared in the unit EgFireGrid.RowSource.
An application uses it to read the data of the rows the grid shows,
by window row (0 = the first row shown, as the RowIndex of
the events), without moving the dataset:
| Member | Use |
|---|---|
Active: Boolean |
Whether there is data to show (the dataset is open). |
GetValue(RowIndex, FieldName): Variant |
The value of a field in a window row; Null when there
is none. The usual way to test another field of the row in OnBeforeDrawCell. |
GetWindowRowCount: Integer |
How many rows the window holds (fewer than VisibleRowCount
at the end of the data). |
GetActiveWindowRow: Integer |
The window row of the active record, -1 when there is none. |
GetRowId(RowIndex): TEgFireGridRowId |
The identity of a window row (with a dataset, its bookmark). |
GotoRowId(Id): Boolean |
Makes the row of an identity the active record; False
when it no longer exists. |
IsRowIdValid(Id): Boolean |
Whether an identity still names a row (a deleted record’s does not). |
The other members are the grid’s own interface to its data, not meant to be called by an application: scrolling, editing and posting go through the dataset, as usual.