Did you ever try this? I'd like to figure out a clean way just to get a mouseup mousedown events to a cell so that I can roll my own drag & drop in the mean time. Any ideas on how to do this? Seems like it should be simple -- I've tried a few things and nothing seems to work.

Ok -- just in case this helps anyone else; what I did was to first direct the needed events up to where I could make use of them. (this is just a hack -- there's gotta be a better way to do this)

dojo.declare('dojox.DLGrid', dojox.Grid, {

	postCreate: function(){
	   this.inherited(arguments);
	   this.funnelDDEvents();
	},
	
	funnelDDEvents : function() {
       dojox.grid.funnelEvents(this.views.views[1].contentNode, this.views.views[1], "doContentEvent", [ 'mousemove', 'mousedown', 'mouseup' ]);	   
        // I think this.views.views[0] is the grid gutter
	},

    setStructure : function(args) {
        this.inherited(arguments);
        this.funnelDDEvents();
    },

	domousedown: function(e) {
	   console.debug('DLGRID: mousedown');
           // record mousedown here
	},

        domousemove: function(e) {
	   console.debug('DLGRID: mousemove');
           // at this point e is decorated and contains info about the cell 
           // if mouse down recorded, and the cell is dragable, etc, then you can 
                ddm = dojo.dnd.manager();
                ...
                ddm.startDrag(.....);
                // I actually made the grid the source & target by adding the need functions

                // if draggging then use e.cell to look at the cell and determine canEdit and then 

                ddm.canDrop(canEdit);

	},
	domouseup: function(e) {
	   console.debug('DLGRID: mouseup');
           // if dragging then use e.cell to look at the drop target and then 
           ddm = dojo.dnd.manager();
           ddm.stopDrag();

	},

This was a hack, but should help a lot if you *really* need a simple grid d&d like I did. (we're trying to arrange an orchestra where each grid cell is actually a modified FilteringSelect which can do a name lookup).

Also, it would be nice if dojo.dnd.Manager could operate with a null source and target so as to lend itself to doing something manually like this. This class *is* quite useful with the source & targets not set for moving the avatar, but causes erros if the source & target == null. Not sure if this justifies filing a bug ....?