Fired when the user clicks a splitter and starts resizing a band (row or column) on the layout grid.
The event handler receives an argument of type C1SizerEventArgs containing data related to this event. The following C1SizerEventArgs properties provide information specific to this event.
| Property | Description |
|---|
| Band | Gets a reference to the band (row or column) that caused the event. |
| X | Gets the X coordinate of the mouse when the event is fired. |
| Y | Gets the X coordinate of the mouse when the event is fired. |