SMART datagrid v.1 > Classes > CheckCellRenderer
If this property value is true, when the cell value is undefined, it will not display the check mark. And, when change the value by clicking the mouse or typing space key, it will change the value after false as undefined value.
If the cell value is not Boolean and this value is true, null or empty string will be displayed as undefined instead of false.
Defaults to false.
grid.setColumns([{
name: "Shipping",
fieldName: "Shipping",
renderer: {
type: "check",
editable: true,
dblClickEditable: false,
threeStates: true,
editOnClick: true
}
},
...
]);