Sets the Dash Type of Custom Break.
Default: solidOther Supported Dash Types:
var  chart =  new  CanvasJS.Chart("chartContainer",
{
 .
 .
axisX: {
    scaleBreaks: {
	customBreaks: [{
	     scaleBreaks: "dash",
             .
	     .
        }]
    }
},
 .
 . 
});
chart.render();
Also See: