How to coding DhtmlxGrid in asp.net following the combo box

I want to write the code following the combo box selection to get the data from SQL server, and provide the XML result to DhtmlxGrid control. how to dynamic rewrite the DhtmlxGrid datasource?





This is a display DhtmlxGrid control .aspx file page.











You can reload grid in any moment by using
    combo.attachEvent(“onChange”,function(){
       mygrid.clearAll();
       mygrid.loadXML(“data.aspx?combo=”+this.getActualValue())
    });