Dojox.grid.datagrid排序顺序

Question

我试图了解dojox.grid.Datagrid的排序行为，特别想知道一个多列网格，如果该列按2个（或更多）行具有相同单元格值的列进行排序，那么将决定它们的排序顺序出现在网格中？

Answer 1

The datagrid only use the selected column for sorting:

getSortProps: function(){
    var c = this.getCell(this.getSortIndex());
    if(!c){
        if(this.sortFields){
            return this.sortFields;
        }
        return null;
    }else{
        var desc = c["sortDesc"];
        var si = !(this.sortInfo>0);
        if(typeof desc == "undefined"){
            desc = si;
        }else{
            desc = si ? !desc : desc;
        }
        return [{ attribute: c.field, descending: desc }];
    }
}

So, when you have two rows with the sam cell value, the time of the row addition will descide the order. (Which row is older, that will be in forward position).

Otherwise, you can redefine the getSortProps method on your object, so you can add secondary sorting option.