Sort in multi row header

How can I disabled col sorting on the second row of a multi row header (and keep enabled the col sorting on the first row) ?



thanks

Actually you can’t disable sorting behavior for some header row in grid, it will work for all rows or will not work at all.
You can try to modify

dhtlmxgrid.js , line 2539
   this.sortField = function(ind,repeatFl,r_el){
       if (this.hdr.rows[1] !=  r_el.parentNode) return; // block any row except first