When the data passed to the RadHtmlChart with "stock" layout presents the highest and lowest base units, you must scroll the mouse wheel in order to navigate to the smallest base units. This issue can be handled for example by exposing a scroller in the navigator that let you select smaller date ranges.

Will be useful for pie/donut charts in responsive web page scenarios.

In the Radchart there is a property called  activeregion where the user can add a reference to html link. When the user clicks on the chart title, he can navigate to a new web page.
This feature is not available in the new HtmlRadChart . We think that is suitable to have this function in the new HtmlRadchart. It can be even extended to axis labels of HtmlRadchart.
Thank you for your help
Best Regards
AE

The current implementation of RadHtmlChart explicitly specifies font-family and font-size settings on the server-side, which are then serialized and used by the Kendo widget, so the skin-specific settings are ignored.

For example, the Material skin should define a "Roboto" font-family, but this is overriden by "Arial" in the final serialization, so the skin configuration does not have any effect.

The default values of the server-side font settings can be removed in order to allow such customization and can be defined in the skins file instead.

Is there any plans to add a Server Side series click event in RadHTMLChart? Currently it is only available via the Client side.

Update data values using drag and drop directly from the chart, something like this:

https://forio.com/app/powersim/powerwall/energy_consumption_details.html

A lot of customers would have this functionality without changing the HTMLChart controls.

A couple of suggestions in one...

Please add interactivity between RadPivotGrid and HTMLChart similar to pivot charts in MS Excel - making the filters and selections. update both the chart and the pivot table.  It will also be helpful if you can add splicers similar to PowerPivot.

When you click on the chart, it opens a popup menu, relative to that area - where you can select to filter that axis or value in a series, change the aggregate calculation for that value (sum, count, average, etc.), change date ranges on a date axis - like, date range picker, by year, fiscal, quarter, week, etc. 

Thanks,

Vermaak

Does not visualize data for some of the cases. I attached a project related to this bug. In the code there is an option with data which RadHtmlChart do visualize and there is option for data which RadHtmlChard don't visualize.

All the code is located in Default.aspx

PS: With tooltip commented data do visualized in both cases.

Gregory.

RadHtmlChart should allow the usage of indices in the DataFormatString when DateTime values are used:
                <XAxis Type="Date">
                    <LabelsAppearance DataFormatString="{0:d}" />
                </XAxis>

increase line width when mouse hovers

When user moved/resized RangeSelector it could be OnClientNavigationRangeChangedEvent fired, with new RangeSelector.From and RangeSelector.To values.

For the time being the property can be set through the kendoWdiget:

        <script>
            function pageLoad() {
                var kendoWidget = $find("<%=RadHtmlChart1.ClientID%>")._chartObject;
                kendoWidget.options.series[0].labels.distance = 20;
                kendoWidget.redraw();
            }
        </script>
        <telerik:RadHtmlChart ID="RadHtmlChart1" runat="server" Width="400px" Height="400px">
            <PlotArea>
                <Series>
                    <telerik:PieSeries>
                        <SeriesItems>
                            <telerik:PieSeriesItem Y="30" />
                            <telerik:PieSeriesItem Y="10" />
                            <telerik:PieSeriesItem Y="20" />
                        </SeriesItems>
                    </telerik:PieSeries>
                </Series>
            </PlotArea>
        </telerik:RadHtmlChart>

For the time being properties can be set to the kendoWidget on the client:
ASPX:
		<script>
			function pageLoad() {
				var chart = $find("<%=RadHtmlChart1.ClientID%>");
				chart._chartObject.options.xAxis.min = new Date(2013, 04, 01);
				chart._chartObject.options.xAxis.max = new Date(2013, 05, 01);
				chart.repaint();
			}
		</script>
		<telerik:RadHtmlChart runat="server" ID="RadHtmlChart1" Width="640px" Height="480px">
			<PlotArea>
				<Series>
					<telerik:ScatterLineSeries DataFieldY="SellQuantity" DataFieldX="SellDate">
						<LabelsAppearance DataFormatString="{1} cars sold on {0:m}">
						</LabelsAppearance>
						<TooltipsAppearance Color="White" DataFormatString="{1} cars sold on<br/>{0:D}" />
					</telerik:ScatterLineSeries>
				</Series>
				<XAxis BaseUnit="Days">
					<TitleAppearance Text="Sell Date">
					</TitleAppearance>
					<LabelsAppearance DataFormatString="d" RotationAngle="45">
					</LabelsAppearance>
					<MajorGridLines Color="#EFEFEF" Width="1"></MajorGridLines>
					<MinorGridLines Color="#F7F7F7" Width="1"></MinorGridLines>
				</XAxis>
				<YAxis>
					<TitleAppearance Text="Quantity">
					</TitleAppearance>
					<MajorGridLines Color="#EFEFEF" Width="1"></MajorGridLines>
					<MinorGridLines Color="#F7F7F7" Width="1"></MinorGridLines>
				</YAxis>
			</PlotArea>
			<ChartTitle Text="Sold Cars per Date">
			</ChartTitle>
		</telerik:RadHtmlChart>
C#:
	protected void Page_Load(object sender, EventArgs e)
	{
		RadHtmlChart1.DataSource = GetData();
		RadHtmlChart1.DataBind();
	}

	protected DataTable GetData()
	{
		DataTable dt = new DataTable();

		dt.Columns.Add("ID", typeof(int));
		dt.Columns.Add("SellQuantity", typeof(int));
		dt.Columns.Add("SellDate", typeof(DateTime));

		dt.Rows.Add(1, 2, new DateTime(2013, 05, 12));
		dt.Rows.Add(2, 5, new DateTime(2013, 05, 13));
		dt.Rows.Add(3, 6, new DateTime(2013, 05, 17));
		dt.Rows.Add(4, 4, new DateTime(2013, 05, 18));
		dt.Rows.Add(5, 7, new DateTime(2013, 05, 22));

		return dt;
	}

Under the standard definition of data format strings, range scaling can be applied (i.e. divide by 1000) using , prefixing the implied or explicit decimal place.
e.g. DataFormatString="{0:#,#,}" will display 3000000 as 3,000

This works on RadPivotGrid correctly, but RadHTMLChart does not work either on data labels, axis labels, or pretty much anywhere else. Apparently a problem with kendo.format(), which does not do this as per documentation for DataFormatString

N.B. This is commonly used in finance presentations to globally present in $thousands.

Was hoping for the functionality where the difference area between lines could be colored accordingly.

example: htmlchart with 3 lines 1:+standard 2:-standard and 3:Actual value. If the Actual value line is below the -standard, the difference area should be colored red. In case it crosses the +standard it should be green.

Likely the Actual value line would be an Area-serie but that aside.

Hello,

The RadHtmlCharts are great! One that is missing however -- a spectrum chart, aka a spectral chart. This takes in a set of data points and renders the values as color-dense shadings. Screenshot attached of one we made ourselves.

This would be useful for scientific applications.


thanks,
matt