Time of Y-axis

[prayag ganoje]

Hi,

I want to calibrate Y-axis to display time on it in the hour and min format. I dont want to display time in the equivalent decimal format.

Also same time I want to display in HH:MM in the data-table below the chart. Is it possible to calibrate the Y-axis in time format ?

[Evgenia]

Hi prayag,

      Even though you can set custom format string for your item.Label as shown in the code snippet below, this won't affect the Data Table's values. Unfortunately there is no way to set format for the values in the Data Table.

protected void Page_Load(object sender, EventArgs e)
   {
       RadChart1.AutoLayout = true;
       ChartSeries s = new ChartSeries();
       Random r = new Random();
       const double hourStep = 1 / 24.0;
       const double minuteStep = hourStep / 60;
       const double twentyMinuteStep = minuteStep * 20;
       double startTime = DateTime.Now.AddHours(-1).ToOADate();
       double endTime = DateTime.Now.ToOADate();
       for (double currentTime = startTime; currentTime < endTime; currentTime += twentyMinuteStep)
       {
           ChartSeriesItem item = new ChartSeriesItem();
           item.YValue = currentTime + r.NextDouble() * twentyMinuteStep;
           item.Label.TextBlock.Text = DateTime.FromOADate(item.YValue).ToString("hh:mm");
           s.Items.Add(item);
       }
       RadChart1.AddChartSeries(s);
       RadChart1.PlotArea.YAxis.AxisMode = ChartYAxisMode.Extended;
       RadChart1.PlotArea.YAxis.Appearance.ValueFormat = Telerik.Charting.Styles.ChartValueFormat.ShortTime;
       RadChart1.PlotArea.YAxis.AutoScale = false;
       RadChart1.PlotArea.YAxis.AddRange(startTime, endTime, twentyMinuteStep);
       s.Appearance.LabelAppearance.Visible = true;
   }

Kind regards,
Evgenia
the Telerik team