Hi,
How to change the height of the combo when you double click the cell which has co as column type
default height defined through css. (dhtmlxgrid.css line 72)
dhx_combo_select {
background-color:white;
border-color:black silver silver black;
border-style:solid;
border-width:1px;
cursor:default;
font-family:arial;
font-size:12px;
height:auto;
overflow:hidden;
position:absolute;
z-index:600;
}