BeforeSelChange Event

Fires before the selection changes (Row, Col, RowSel, ColSel properties).

Syntax

[C1Description("Fires before the selection changes (Row, Col, RowSel, ColSel properties).")]
public event RangeEventHandler BeforeSelChange

[C1Description("Fires before the selection changes (Row, Col, RowSel, ColSel properties).")]
public:
event RangeEventHandler^ BeforeSelChange

'Declaration
 
<C1DescriptionAttribute("Fires before the selection changes (Row, Col, RowSel, ColSel properties).")>
Public Event BeforeSelChange As RangeEventHandler

'Usage
 
Dim instance As C1FlexGridBase
Dim handler As RangeEventHandler
 
AddHandler instance.BeforeSelChange, handler

This event fires before the RowSel and ColSel properties change, either as a result of user actions or through code. It allows you to prevent the selection of certain cells, thus creating "protected" ranges on a grid.

To prevent the selection of a range, you also need to handle the BeforeRowColChange event, which is fired before the Row and Col properties change.

Reference