Mouse API

TreeGrid documentation

Called after click to cell [row, col]. row and col are never null.
x, y is click position inside the cell. event is standard JavaScript MouseEvent to get for example information about Ctrl/Alt/Shift keys or other information about click.
Return true to suppress default OnClick action
Called after double click to grid. row or col can be null for double click outside the cells.
x, y is click position inside the cell. event is standard JavaScript MouseEvent.
Return true to suppress default OnDblClick action
Called after right click to grid. row or col can be null for double click outside the cells.
x, y is click position inside the cell. event is standard JavaScript MouseEvent.
Return true to suppress default OnRightClick action
Called on click with time between mouse/touch down and up longer than LongClick (default 500ms).
Called on right click with time between mouse/touch down and up longer than LongClick (default 500ms).
Time between mouse / touch down and up to be the click taken as long click.
For long click there are called special long click events and next standard click events.
When the context menu is displayed on Mac computers on right click.
0 - Mac way, displayed on mouse down. It can collide with dragging by right mouse button.
1 - Windows way, displayed on mouse up. It always suppresses default browser context menu. Useful for dragging by right mouse button.
By default it is 1 on grids with Gantt chart and 0 in other grids.
Called after mouse down in grid. row or col can be null for double click outside the cells.
x, y is click position inside the cell. event is standard JavaScript MouseEvent.
Return true to suppress default OnRightClick action
Called after mouse up in grid. row or col can be null for double click outside the cells.
x, y is click position inside the cell. event is standard JavaScript MouseEvent.
Return true to suppress default OnMouseUp action
Called whenever mouse moves above grid. row or col can be null for double click outside the cells.
Use only very short code here to not slow down the grid.
x, y is click position inside the cell. event is standard JavaScript MouseEvent.
Return true to suppress default OnMouseMove action
Called after whenever mouse enters to another cell or outside any cell or row.
row or col is new cell, the orow, ocol is old cell. All parameters except grid can be null.
event is standard JavaScript MouseEvent.
It is set inside mouse events when the event is processing touch event on touch screen.
It is set to count of actually held fingers on touch screen.
Touch events do not work in MS IE in any version.
Touch events work in all other browsers on tablets and mobiles and in Chrome and Safari on desktop by default.
Touch events in MS Edge on desktop you have to permit in about:flags, option Touch - Touch events - Enable touch events.
Touch events in Firefox on desktop you have to permit in about:config, option dom.w3c_touch_events.enabled = 1.
Pointer to active grid under the mouse cursor. It processes mouse wheel events.
Actual row under mouse cursor or null
Actual column under mouse cursor