Index.cshtml

<script src="~/Content/Extensions/ChartAxisMaxValueExtension.js"></script>
<script src="~/Content/Extensions/ChartConstantLinesExtension.js"></script>
<script src="~/Content/Extensions/ChartLineOptionsExtension.js"></script>
<script src="~/Content/Extensions/ChartScaleBreaksExtension.js"></script>
<script src="~/Content/Extensions/ItemDescriptionExtension.js"></script>
<script src="~/Content/Extensions/DashboardDescriptionExtension.js"></script>



<script type="text/javascript">
    function onBeforeRender(sender) {
        var control = sender.GetDashboardControl()
        control.registerExtension(new DevExpress.Dashboard.DashboardPanelExtension(control))

        control.registerExtension(new ChartScaleBreaksExtension(control))
        control.registerExtension(new ChartLineOptionsExtension(control))
        control.registerExtension(new ChartAxisMaxValueExtension(control))
        control.registerExtension(new ChartConstantLinesExtension(control))
        control.registerExtension(new ItemDescriptionExtension(control))
        control.registerExtension(new DashboardDescriptionExtension(control))
    }
</script>
@Html.DevExpress().Dashboard(settings => {
    settings.Name = "Dashboard";
    settings.Width = Unit.Percentage(100);
    settings.Height = Unit.Percentage(100);
    settings.UseNeutralFilterMode = true;
    settings.ClientSideEvents.BeforeRender = "onBeforeRender";
    settings.IncludeDashboardIdToUrl = true;
    settings.IncludeDashboardStateToUrl = true;
}).GetHtml()