This sample illustrates Excel-Style selection behavior and the Excel Marker selection behavior available in Essential Grid. You can also change the selection color of the grid by using alpha blending technique to color the selection rectangle.
Features
The selection color is changed by using the ColorEdit cell or the Numeric Up-Down cell and the Apply button in the cell.
The Excel selection marker can be seen while moving the mouse pointer to the bottom-right corner of the selected area.
When you perform the mouse drag action, the selection expands and the selected range is displayed when the mouse button is released(similar to Excel).
Excel Marker mouse controller in ExcelMarkerMouseController.cs implements the IMouseController interface.
The MouseController interface handles mouse events to implement the Excel Marker with selections.