Visible Chart

Thread ID:	Created:	Updated:	Platform:	Replies:
145995	Jul 17,2019 02:29 AM UTC	Jul 18,2019 04:52 AM UTC	WinForms	3

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Tags: Chart

Ola Mallaug

Asked On July 17, 2019 02:29 AM UTC

I'm zooming in on a chart and want to know the start and end time.

I use chart.Series[0].XAxis.VisibleRange.Min, the value in my test is 43599.326504629629.

How can I translate this number to date/time?

Any suggestions?

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Baby Palanidurai [Syncfusion]

Replied On July 17, 2019 06:55 AM UTC

Hi Ola,

Greetings from Syncfusion.

We have analyzed your query. Your requirement has been achieved by visibleRangeChanged event. This event will trigger whenever range is changed during the zooming. In this event, we can get the min and max range from the primary x axis VisibleRange object. And you can convert it to the date time from the number in this event.

For more information about visibleRangeChanged Event, kindly find the below documentation link,

https://help.syncfusion.com/windowsforms/chart/chart-control-events#visiblerangechanged-event

Please find the below code snippet to achieve this requirement,

this.chart1.VisibleRangeChanged += Chart1_VisibleRangeChanged;

private void Chart1_VisibleRangeChanged(object sender, EventArgs e)

{

//Maximum value of x axis while zooming

var maxValue = chart1.PrimaryXAxis.VisibleRange.Max;

//Mimimum value of x axis while zooming

var minValue = chart1.PrimaryXAxis.VisibleRange.Min;

//convert double value to DateTime value

DateTime max = DateTime.FromOADate(maxValue);

DateTime min = DateTime.FromOADate(minValue);

MessageBox.Show("Max:" + max + "\n" + "Min:" + min);

}

Screenshot:

Sample link: http://www.syncfusion.com/downloads/support/directtrac/general/ze/chartRange-1887357911

Kindly revert us, if you have any concerns.

Regards,

Baby.

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Ola Mallaug

Replied On July 17, 2019 06:39 PM UTC

Perfect, that is what I was looking for.

Thanks!

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Baby Palanidurai [Syncfusion]

Replied On July 18, 2019 04:52 AM UTC

Hi Ola,

Most welcome. Kindly revert us, if you need any further assistance on this. We are always happy in assisting you.

Thanks,
Baby.

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Visible Chart

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