multiselectionMode

sets the mode of multiselection

string multiselectionMode;

"click","ctrlClick"

use the multiselection property instead:

var dataview = new dhx.DataView("dataview", {
    multiselection:"ctrlClick"  
});

var dataview = new dhx.DataView("dataview", {
    multiselection:true,
    multiselectionMode:"click"   
});

"ctrlClick"

Details

This configuration option requires the multiselection property to be enabled.