Manual AxisY [DateTime] only showing first tick

[ssawchenko]

Edit: I mean AxisX in my post title... it's been a long day and I'm very tired.

Nothing but problems I'm afraid - here's my next one.

I am trying to manually set the range of the AxisX to only show the last <X> minutes of data.  I have done this:

DateTime StartDate = DateTime.Parse("2010-05-18T06:38:42.914");
DateTime EndDate = DateTime.Parse("2010-05-18T10:31:42.00");

_RadChart.DefaultView.ChartArea.AxisX.AutoRange = false;

_RadChart.DefaultView.ChartArea.AxisX.MinValue = StartDate.ToOADate();
_RadChart.DefaultView.ChartArea.AxisX.MaxValue = EndDate.ToOADate();
_RadChart.DefaultView.ChartArea.AxisX.Step = 5;
_RadChart.DefaultView.ChartArea.AxisX.LabelStep = 2;
_RadChart.DefaultView.ChartArea.AxisX.StepLabelLevelCount = 2;

And the resulting graph has only one starting tick.
See the attached png for the result.

Is this a bug, or am I missing a setting?

[Vladimir Milev]

Hello shayla sawchenko,

This is not a bug. A value of 1 equals to 1 day in OLE Automation date time. I suggest you use the following formula when calculating steps:

step = (maxvalue - minvalue) / desired_number_of_steps;

Greetings,
Vladimir Milev
the Telerik team

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[ssawchenko]

Thank you very much for the response.  Currently our evaluation has expired, but I believe we are picking up a license soon.  I will try out this solution once we have done so :)