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DHX Grid : Expand or collapse a subrow column using Context Menu

Hi there,
How to expand or collapse a subrow column type using Context Menu in Grid?

There are open()/close() methods to do this.
So you can use menu's onClick event handler in the following way:

cMenu.setContextMenuHandler(onButtonClick);

function onButtonClick(menuitemId,grid_Id){
    var data=grid_Id.split("_"); //rowId_colInd
    var row_id = data[0];
    if(menuitemId == "open")
    grid.cells(row_id,index).open();
    if(menuitemId == "close")
    grid.cells(row_id,index).close();
}