FPSpreadsheetControls are a set of visual components which facilitate creation
of a spreadsheet application.
TsWorkbookSource is the base of the package: it links the visual components to a
worksheet instance.
TsWorkbookTabControl is a TabControl which displays tabs for each worksheet
of the workbook. Changing the active tab selects the corresponding worksheet.
TsWorksheetGrid is a grid component which displays the contents of a worksheet.
It communicates with the TsWorkbookSource by receiving and sending messages
on the selected cell.
TsCellEdit is a multi-line edit control (memo) for entering cell values and
formulas. Pressing ENTER transfers the current text into the worksheet.
TsCellIndicator is a simple edit used to display the address of the currently
selected cell. Editing the text allows to jump to the cell address.
TsSpreadsheetInspector is a StringGrid (ValueListEditor, to be precise) which
displays details on the workbook, the selected worksheet, and the selected
cell values and properties.
Linking these controls to a TsWorkbookSource results in a working spreadsheet
application without writing any line of code.
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