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User Defined Tool Tip

I want a user defined tool tip for the cells instead of the tool tip that shows by default with the value of the cell.

Latest build supports "title" attribute in configuration XML

<cell title="some tooltip here">

In common case you can redefine tooltip text genneration in custom way

   /*========= Tooltip modification start ==============*/
        dhtmlXGridCellObject.prototype.getTitle=function(){
         //check if userdata with tooltip exists

         var tip=this.grid.getUserData(this.cell.parentNode.idd,"tip_"+this.cell._cellIndex);

         if (tip)
            return tip;
         //if no special tooltip - return current value
         return this.cell.innerHTML;
      }
   // some excell as link,img and some others, has custom
   // getTitle methods, you need to redefine it for each
   // such excell if necessary
   //
   //  eXcell_img.prototype.getTitle=dhtmlXGridCellObject.prototype.getTitle;
   //
   /*========= Tooltip modification end ==============*/