If you want to use a click event for that, you need iGrid's CellClick event. But a better approach is to use an event fired when the current row or cell has been changed. These are CurRowChanged and CurCellChanged respectively. These events work when the user changes the selection using various methods including the keyboard, or even when the selected item disappears. For instance, if the current row has been removed, you need to clear the details grid as there is no master record for it.