X-Axis Step When Using Time

[Ryan Overton]

I have been able to add a chart to my report and bind the data to the chart. I have even gotten the X-axis to display in time, but I have 2 design requirements which I cannot figure out.

    -    1. How do I provide a custom step when I am using the time value format? If I use autoscale, it does provide some stepping, but it puts a buffer before the beginning of the first time and another buffer at the end. If I change autoscale to false, I cannot enter a label step large enough to display as many as I want. 

    -    2. How can I display both date and time as the label on each step of the X-axis? I can do date or time, but have not found a way to do date and time together. The chart could span 1 - 3 days.

Can anyone help me resolve either of these issues?

[Ves]

Hi Ryan,

With AutoScale set to false, you would need to manually configure the MinValue, MaxValue and Step properties. So, you can leave LabelStep property with its default value of 1 - the Step property will guarantee that you will see only certain labels. Note, that in the OLEAutomation date format (double) a value of 1 corresponds to 1 day (ex. a step of 3 hours would be 3d/24 or .125).

Displaying date and time simultaneously -- set XAxis.Appearance.ValueFormat to one of the DateTime-related members (ex. ChartValueFormat.ShortDate) and then set XAxis.Appearance.CustomFormat property with any valid standard or custom DateTime format string.

 

Kind regards,
Ves
the Telerik team

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[Yanli]

I need to set the X-Axis steps dynamically based on how many data points in the series. I'm using Graph since Chart is depreciated. Now with Graph, how can I access AutoScale, MinValue, MaxValue and Steps? it doesn't has the property PlotArea.

Thanks!

[Peter]

Hi Yanli,

You can access the properties of an Axis by selecting the Axis as shown here. You can also set these properties programmatically:

var graph1 = new Telerik.Reporting.Graph();
...
var cartesianCoordinateSystem = new Telerik.Reporting.CartesianCoordinateSystem();
...
var scale = new Telerik.Reporting.DateTimeScale();
//set needed properties
scale.MajorStep = 1;
scale.Minimum = 1;
...
var graphAxisNumericScale = new Telerik.Reporting.GraphAxis();
graphAxisNumericScale.Scale = scale;
...
cartesianCoordinateSystem.XAxis = graphAxisNumericScale;
...
graph1.CoordinateSystems.Add(cartesianCoordinateSystem);

For a more thorough and complete example on how to create a graph and add series and other elements programmatically, please follow the How to: Create Chart Programmatically help article.

Regards,
Peter
Telerik

[Kedar]

Hi,

 I am using telerik RadCartesianChart and I would want to set the step along horizontal axis,I am unable to find any property associated with the chart to set to.

Also I am unable to put colors to series(line series, I have as many as 5 line series in a chart). Could some one help me with this?

 

Thanks
Kedar

[Nasko]

Hello Kedar,

Telerik Reporting uses Telerik.Reporting.Graph to create and render charts in the reports. For more information on the Graph item and how to use it, please refer to the Graph help articles in the Reporting online documentation.

Regards,
Nasko
Telerik