Hi Marco,
Thank you for writing.
Indeed, the label interval is not automatically adjusted depending on the available space. You can, however, achieve a similar result as the one required by calculating the interval depending on the viewport`s width. Please check my code snippet below:
public partial class Form1 : Form
{
private int step = 100;
public Form1()
{
InitializeComponent();
LineSeries lineSeries = new LineSeries();
Random r = new Random();
for (int i = 0; i < 100; i++)
{
lineSeries.DataPoints.Add(new CategoricalDataPoint(i * r.Next(100), DateTime.Now.AddDays(i)));
}
DateTimeContinuousAxis continuousAxis = new DateTimeContinuousAxis();
continuousAxis.PlotMode = AxisPlotMode.OnTicksPadded;
continuousAxis.LabelFitMode = AxisLabelFitMode.Rotate;
continuousAxis.LabelInterval = 8;
continuousAxis.LabelRotationAngle = 90;
lineSeries.HorizontalAxis = continuousAxis;
this.radChartView1.Series.Add(lineSeries);
this.radChartView1.SizeChanged += radChartView1_SizeChanged;
}
private void radChartView1_SizeChanged(object sender, EventArgs e)
{
DateTimeContinuousAxis axis = radChartView1.Axes[0] as DateTimeContinuousAxis;
int diff = (int)radChartView1.View.Viewport.Width - this.step;
if (diff > 100 && axis.LabelInterval > 1)
{
axis.LabelInterval -= 1;
this.step = (int)radChartView1.View.Viewport.Width;
}
else if (diff < -100)
{
axis.LabelInterval += 1;
this.step = (int)radChartView1.View.Viewport.Width;
}
}
}
I am also sending you a short video showing the result on my end.
I hope this helps. Should you have further questions please do not hesitate to write back.
Regards,
Hristo Merdjanov
Telerik by Progress
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