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What is the max value for RadChartView CategoricalDataPoint?

I add datapoints to the RadChartView using CategoricalDataPoints. The values can be quite large and then I get the following error:

Value was either too large or too small for a decimal.

 

Then I did this test:

radChartView->Series[0]->DataPoints->Add(gcnew Telerik::Charting::CategoricalDataPoint(Decimal::ToDouble(Decimal::MaxValue), 0));

I still get the exception: Value was either too large or too small for a decimal.

 

What is the max value that can be set?

ChartView
Nadya | Tech Support Engineer
Telerik team
 answered on 18 Jun 2021
2 answers
191 views
Custom Tokenizer in AutoCompleteBox

Hi, just a question, it is feasible to use a custom tokenizer for the autocompletebox in order to compose the text blocks?

My tokenizer currently supports a vast variety of "quoted" parts, escape sequences and separators thus would be difficult to use just separators, because if separator is , then the quoted text "Hello, World", will be considered 2 blocks instead of 1.

Best Regards

Andrea

AutoCompleteBox
Nadya | Tech Support Engineer
Telerik team
 answered on 18 Jun 2021
5 answers
905 views
Sneaking password in a textbox

Hi

In winforms, is it possible to have the little "eye" on the right of a RadTextbox to let the user sneak the password?

I have found https://www.telerik.com/support/kb/winforms/tools/details/showpassword-button-for-radtextbox-with-textmode-password?_ga=2.217538326.1876351049.1570721637-455345866.1542726605 which is under winforms but seems to apply to ASP.Net/Ajax.

TextBox
Nadya | Tech Support Engineer
Telerik team
 answered on 18 Jun 2021
1 answer
135 views
Alternating colors (red and yellow) for data points in range bar series

Hi ,

I am trying to create a range bar series . In that data points should be alternating colors red and yellow only . I found one from chart grid : https://docs.telerik.com/devtools/winforms/controls/chartview/features/chart-grid but not for data points . Are there any properties to achieve this?

 

Code attached: 


private void LoadBarChart()
        {

            this.radChartView1.AreaType = ChartAreaType.Cartesian;
            this.radChartView1.ChartElement.AngleTransform = 90;
            RangeBarSeries rangeBarSeries = new RangeBarSeries("End Time", "Start Time", "Summarization Date");
            rangeBarSeries.CombineMode = ChartSeriesCombineMode.None;

            this.radChartView1.ChartElement.View.Margin = new Padding(40, 40, 40, 100);

            rangeBarSeries.DataPoints.Add(new RangeDataPoint(DateTime.Now.TimeOfDay.TotalMinutes + 14, DateTime.Now.TimeOfDay.TotalMinutes + 10, "5/17/2021"));
            rangeBarSeries.DataPoints.Add(new RangeDataPoint(DateTime.Now.TimeOfDay.TotalMinutes + 7, DateTime.Now.TimeOfDay.TotalMinutes + 5, "5/17/2021"));
            rangeBarSeries.DataPoints.Add(new RangeDataPoint(DateTime.Now.TimeOfDay.TotalMinutes + 4, DateTime.Now.TimeOfDay.TotalMinutes + 2, "5/17/2021"));


            rangeBarSeries.DataPoints.Add(new RangeDataPoint(DateTime.Now.TimeOfDay.TotalMinutes + 30, DateTime.Now.TimeOfDay.TotalMinutes + 10, "5/18/2021"));
            rangeBarSeries.DataPoints.Add(new RangeDataPoint(DateTime.Now.TimeOfDay.TotalMinutes + 7, DateTime.Now.TimeOfDay.TotalMinutes + 5, "5/18/2021"));

            rangeBarSeries.DataPoints.Add(new RangeDataPoint(DateTime.Now.TimeOfDay.TotalMinutes + 4, DateTime.Now.TimeOfDay.TotalMinutes + 2, "5/19/2021"));

            rangeBarSeries.DataPoints.Add(new RangeDataPoint(DateTime.Now.TimeOfDay.TotalMinutes - 89, DateTime.Now.TimeOfDay.TotalMinutes - 100, "5/20/2021"));
            rangeBarSeries.DataPoints.Add(new RangeDataPoint(DateTime.Now.TimeOfDay.TotalMinutes + 7, DateTime.Now.TimeOfDay.TotalMinutes + 5, "5/20/2021"));

            rangeBarSeries.DataPoints.Add(new RangeDataPoint(DateTime.Now.TimeOfDay.TotalMinutes - 79, DateTime.Now.TimeOfDay.TotalMinutes - 90, "5/21/2021"));
            rangeBarSeries.DataPoints.Add(new RangeDataPoint(DateTime.Now.TimeOfDay.TotalMinutes + 7, DateTime.Now.TimeOfDay.TotalMinutes + 5, "5/21/2021"));

            rangeBarSeries.DataPoints.Add(new RangeDataPoint(DateTime.Now.TimeOfDay.TotalMinutes + 14, DateTime.Now.TimeOfDay.TotalMinutes + 10, "5/22/2021"));
            rangeBarSeries.DataPoints.Add(new RangeDataPoint(DateTime.Now.TimeOfDay.TotalMinutes + 7, DateTime.Now.TimeOfDay.TotalMinutes + 5, "5/22/2021"));


            rangeBarSeries.DataPoints.Add(new RangeDataPoint(DateTime.Now.TimeOfDay.TotalMinutes + 14, DateTime.Now.TimeOfDay.TotalMinutes + 10, "5/23/2021"));
            rangeBarSeries.DataPoints.Add(new RangeDataPoint(DateTime.Now.TimeOfDay.TotalMinutes + 7, DateTime.Now.TimeOfDay.TotalMinutes + 5, "5/23/2021"));

            rangeBarSeries.DataPoints.Add(new RangeDataPoint(DateTime.Now.TimeOfDay.TotalMinutes + 14, DateTime.Now.TimeOfDay.TotalMinutes + 10, "5/25/2021"));
            rangeBarSeries.DataPoints.Add(new RangeDataPoint(DateTime.Now.TimeOfDay.TotalMinutes + 7, DateTime.Now.TimeOfDay.TotalMinutes + 5, "5/24/2021"));

            rangeBarSeries.DataPoints.Add(new RangeDataPoint(DateTime.Now.TimeOfDay.TotalMinutes + 14, DateTime.Now.TimeOfDay.TotalMinutes + 10, "5/26/2021"));
            rangeBarSeries.DataPoints.Add(new RangeDataPoint(DateTime.Now.TimeOfDay.TotalMinutes + 7, DateTime.Now.TimeOfDay.TotalMinutes + 5, "5/26/2021"));


            CategoricalAxis horizontalAxis = new CategoricalAxis();

           // horizontalAxis.Title = "Summarization Days";
            horizontalAxis.ClipLabels = false;
            horizontalAxis.LabelRotationAngle = -90;
            horizontalAxis.LabelFitMode = AxisLabelFitMode.Rotate;
            horizontalAxis.BackColor = Color.Red;
            horizontalAxis.PlotMode = AxisPlotMode.BetweenTicks;
            horizontalAxis.LabelFormatProvider = new MyFormatProviderX();
            rangeBarSeries.HorizontalAxis = horizontalAxis;

            ChartTooltipController tooltipController = new ChartTooltipController();
            tooltipController.DataPointTooltipTextNeeded += tooltipController_DataPointTooltipTextNeeded;
            this.radChartView1.Controllers.Add(tooltipController);

           // rangeBarSeries.ShowLabels = true;
            this.radChartView1.Series.Add(rangeBarSeries);
            radChartView1.ShowToolTip = true;
            rangeBarSeries.CombineMode = ChartSeriesCombineMode.None;

    

            rangeBarSeries.VerticalAxis.LabelFormatProvider = new MyFormatProvider();
            rangeBarSeries.VerticalAxis.Title = "Time of the day";
            rangeBarSeries.VerticalAxis.ClipLabels = false;
            rangeBarSeries.VerticalAxis.LabelRotationAngle = -90;
            rangeBarSeries.VerticalAxis.LabelFitMode = AxisLabelFitMode.Rotate;
           

            LinearAxis verticalAxis = radChartView1.Axes.Get<LinearAxis>(1);
            verticalAxis.Minimum = 0; //Minutes 0:00
            verticalAxis.Maximum = 1380; //Minutes 23:00
            verticalAxis.MajorStep = 60; //60 minutes in an hour
         

            CartesianArea area = this.radChartView1.GetArea<CartesianArea>();
            area.ShowGrid = true;

            CartesianGrid grid = area.GetGrid<CartesianGrid>();
            grid.DrawVerticalStripes = true;
            grid.DrawHorizontalStripes = false;
        }


        private void tooltipController_DataPointTooltipTextNeeded(object sender, DataPointTooltipTextNeededEventArgs e)
        {
            RangeDataPoint dp = e.DataPoint as RangeDataPoint;
            if (dp != null)
            {
                e.Text = dp.High + " " + dp.Low;
            }
        }

    }
}

public class MyFormatProvider : IFormatProvider, ICustomFormatter
{
    public object GetFormat(Type formatType)
    {
        return this;
    }
    public string Format(string format, object arg, IFormatProvider formatProvider)
    {
        int totalminutes = Convert.ToInt32(arg);

        TimeSpan timeSpan = TimeSpan.FromMinutes(totalminutes);

        return timeSpan.ToString(@"hh\:mm");
    }
}

ChartView
Nadya | Tech Support Engineer
Telerik team
 answered on 16 Jun 2021
1 answer
99 views
CustomFormatter first takes in non relevant values even though min ,max and major step are set

Hi ,

I am defining the vertical axis' set of axis labels by defining min max and major step . Even though i set it , it takes some non relevant values like 100,200....1128.5 etc before starting from 0,60,120... Code attached:


            rangeBarSeries.VerticalAxis.LabelFormatProvider = new MyFormatProvider();            
            LinearAxis verticalAxis = chart.View.Axes.Get<LinearAxis>(1);
            verticalAxis.Minimum = 0; //Minutes 0:00
            verticalAxis.Maximum = 1380; //Minutes 23:00
            verticalAxis.MajorStep = 60; //60 minutes in an hour

   public class MyFormatProvider : IFormatProvider, ICustomFormatter
    {
        public object GetFormat(Type formatType)
        {
            return this;
        }
        public string Format(string format, object arg, IFormatProvider formatProvider)
        {
         
                int totalminutes = Convert.ToInt32(arg);
            TimeSpan timeSpan = TimeSpan.FromMinutes(totalminutes);
            return timeSpan.ToString(@"hh\:mm");
        }
    }

ChartView
Nadya | Tech Support Engineer
Telerik team
 answered on 16 Jun 2021
2 answers
223 views
Need to change height

Hi,

I need to change the height of popup as shown in attached image file, when the dropdown arrow is clicked and popup is shown along with "Close" button.

I have implemented this control exactly as per CustomDropDownList code mentioned in the link:

https://www.telerik.com/support/kb/winforms/dropdown-checkeddropdown-and-list/details/multi-select-drop-down-list

Please help me with the modification needed. 

I do not want to use AutoSize, as the DataSource of dropdown is huge.

Thanks

Nishant

 

DropDownList
Dess | Tech Support Engineer, Principal
Telerik team
 answered on 16 Jun 2021
1 answer
142 views
Last Label Visibilty in x-axis hidden not working

Hi ,

I am trying to hide the last label in y-axis which is kind of inverted but i have attached the image and code for the same


        
private void LoadBarChart()
        {
            chart.View.AreaType = ChartAreaType.Cartesian;
            chart.AngleTransform = 90;
            RangeBarSeries rangeBarSeries = new RangeBarSeries();
         

          rangeBarSeries.DataPoints.Add(new RangeDataPoint(DateTime.Now.TimeOfDay.TotalMinutes + 14, DateTime.Now.TimeOfDay.TotalMinutes + 10, "5/17/2021"));
            rangeBarSeries.DataPoints.Add(new RangeDataPoint(DateTime.Now.TimeOfDay.TotalMinutes + 7, DateTime.Now.TimeOfDay.TotalMinutes + 5, "5/17/2021"));
            rangeBarSeries.DataPoints.Add(new RangeDataPoint(DateTime.Now.TimeOfDay.TotalMinutes + 4, DateTime.Now.TimeOfDay.TotalMinutes + 2, "5/17/2021"));


            rangeBarSeries.DataPoints.Add(new RangeDataPoint(DateTime.Now.TimeOfDay.TotalMinutes + 30, DateTime.Now.TimeOfDay.TotalMinutes + 10, "5/18/2021"));
            rangeBarSeries.DataPoints.Add(new RangeDataPoint(DateTime.Now.TimeOfDay.TotalMinutes + 7, DateTime.Now.TimeOfDay.TotalMinutes + 5, "5/18/2021"));

            rangeBarSeries.DataPoints.Add(new RangeDataPoint(DateTime.Now.TimeOfDay.TotalMinutes + 4, DateTime.Now.TimeOfDay.TotalMinutes + 2, "5/19/2021"));

            rangeBarSeries.DataPoints.Add(new RangeDataPoint(DateTime.Now.TimeOfDay.TotalMinutes - 89, DateTime.Now.TimeOfDay.TotalMinutes - 100, "5/20/2021"));
            rangeBarSeries.DataPoints.Add(new RangeDataPoint(DateTime.Now.TimeOfDay.TotalMinutes + 7, DateTime.Now.TimeOfDay.TotalMinutes + 5, "5/20/2021"));

            rangeBarSeries.DataPoints.Add(new RangeDataPoint(DateTime.Now.TimeOfDay.TotalMinutes - 79, DateTime.Now.TimeOfDay.TotalMinutes - 90, "5/21/2021"));
            rangeBarSeries.DataPoints.Add(new RangeDataPoint(DateTime.Now.TimeOfDay.TotalMinutes + 7, DateTime.Now.TimeOfDay.TotalMinutes + 5, "5/21/2021"));

            rangeBarSeries.DataPoints.Add(new RangeDataPoint(DateTime.Now.TimeOfDay.TotalMinutes + 14, DateTime.Now.TimeOfDay.TotalMinutes + 10, "5/22/2021"));
            rangeBarSeries.DataPoints.Add(new RangeDataPoint(DateTime.Now.TimeOfDay.TotalMinutes + 7, DateTime.Now.TimeOfDay.TotalMinutes + 5, "5/22/2021"));


            rangeBarSeries.DataPoints.Add(new RangeDataPoint(DateTime.Now.TimeOfDay.TotalMinutes + 14, DateTime.Now.TimeOfDay.TotalMinutes + 10, "5/23/2021"));
            rangeBarSeries.DataPoints.Add(new RangeDataPoint(DateTime.Now.TimeOfDay.TotalMinutes + 7, DateTime.Now.TimeOfDay.TotalMinutes + 5, "5/23/2021"));

            rangeBarSeries.DataPoints.Add(new RangeDataPoint(DateTime.Now.TimeOfDay.TotalMinutes + 14, DateTime.Now.TimeOfDay.TotalMinutes + 10, "5/25/2021"));
            rangeBarSeries.DataPoints.Add(new RangeDataPoint(DateTime.Now.TimeOfDay.TotalMinutes + 7, DateTime.Now.TimeOfDay.TotalMinutes + 5, "5/24/2021"));

            rangeBarSeries.DataPoints.Add(new RangeDataPoint(DateTime.Now.TimeOfDay.TotalMinutes + 14, DateTime.Now.TimeOfDay.TotalMinutes + 10, "5/26/2021"));
            rangeBarSeries.DataPoints.Add(new RangeDataPoint(DateTime.Now.TimeOfDay.TotalMinutes + 7, DateTime.Now.TimeOfDay.TotalMinutes + 5, "5/26/2021"));

            CategoricalAxis horizontalAxis = new CategoricalAxis();
            horizontalAxis.ClipLabels = false;
            horizontalAxis.ShowLabels = false;
            horizontalAxis.PlotMode = AxisPlotMode.BetweenTicks;
            rangeBarSeries.HorizontalAxis = horizontalAxis;

            chart.View.Series.Add(rangeBarSeries);
      

            rangeBarSeries.VerticalAxis.LabelFormatProvider = new MyFormatProvider();
            rangeBarSeries.VerticalAxis.ClipLabels = false;
            rangeBarSeries.VerticalAxis.LabelRotationAngle = -45;
            rangeBarSeries.VerticalAxis.LabelFitMode = AxisLabelFitMode.Rotate;

            LinearAxis verticalAxis = chart.View.Axes.Get<LinearAxis>(1);
            verticalAxis.Minimum = 0; //Minutes 0:00
            verticalAxis.Maximum = 1440; //Minutes 23:00
            verticalAxis.MajorStep = 60; //60 minutes in an hour
            verticalAxis.LastLabelVisibility = AxisLastLabelVisibility.Hidden;
        }
 
    public class MyFormatProvider : IFormatProvider, ICustomFormatter
    {
        public object GetFormat(Type formatType)
        {
            return this;
        }
        public string Format(string format, object arg, IFormatProvider formatProvider)
        {
            int totalminutes = Convert.ToInt32(arg);
            TimeSpan timeSpan = TimeSpan.FromMinutes(totalminutes);
            return timeSpan.ToString(@"hh\:mm");
        }
    }

    LinearAxis verticalAxis = chart.View.Axes.Get<LinearAxis>(1);
            verticalAxis.Minimum = 0; //Minutes 0:00
            verticalAxis.Maximum = durationofdayDST; //Minutes 23:00
            verticalAxis.MajorStep = 60; //60 minutes in an hour
            verticalAxis.LastLabelVisibility = AxisLastLabelVisibility.Hidden;
        }
ChartView
Dess | Tech Support Engineer, Principal
Telerik team
 answered on 16 Jun 2021
1 answer
343 views
radvalidationprovider

Is it possible to add your own operators to the list of valid radvalidatorprovider's own operators.   I have a requirement for two operators:

 

1.  See if a value is already contained with a Dictionary object, if so the operator should cause the validation to fail.

2. See if a folder path specified in a textboxcontrol exists on dick.  If not, then the validation should fail.

 

I know I could do this in code, and simply display a dialog stating the error, but I want consistent validation reporting throughout my application.

ValidationProvider
Nadya | Tech Support Engineer
Telerik team
 answered on 16 Jun 2021
1 answer
157 views
Customizing RadGridView Filter Box

Greetings,

Is there a way to hide some of the items of the radgridview filter box, or not showing the filter icon at all (marked with red circles in the attached picture) ?

 

GridView
Dess | Tech Support Engineer, Principal
Telerik team
 answered on 16 Jun 2021
3 answers
688 views
How to have a custom tooltip when hovered over a datapoint?

Hi ,

I am having a range bar series. When hovered over a range data point i need to get the plot value and display as a tooltip of that hovered data point. Attached is the sample code , where i need to capture range data point.


        
private void radChartView1_ToolTipTextNeeded(object sender, Telerik.WinControls.ToolTipTextNeededEventArgs e)
        {
            RadChartElement element = (RadChartElement)sender;
            //RangeDataPoint dataPoint = (RangeDataPoint)element.;//var item = sender as RadChartElement;//if (item != null)//{//    var dataItem = item.DataPoint as RangeDataPoint;//    e.ToolTipText = dataItem.High.ToString();//}//e.ToolTipText = "Hi";
        }
 

    
private void LoadBarChart()
        {
            chart.View.AreaType = ChartAreaType.Cartesian;
            chart.AngleTransform = 90;
            RangeBarSeries rangeBarSeries = new RangeBarSeries();

    
           rangeBarSeries.DataPoints.Add(new RangeDataPoint(DateTime.Now.TimeOfDay.TotalMinutes + 14, DateTime.Now.TimeOfDay.TotalMinutes + 10, "5/17/2021"));
            rangeBarSeries.DataPoints.Add(new RangeDataPoint(DateTime.Now.TimeOfDay.TotalMinutes + 7, DateTime.Now.TimeOfDay.TotalMinutes + 5, "5/17/2021"));
            rangeBarSeries.DataPoints.Add(new RangeDataPoint(DateTime.Now.TimeOfDay.TotalMinutes + 4, DateTime.Now.TimeOfDay.TotalMinutes + 2, "5/17/2021"));


            rangeBarSeries.DataPoints.Add(new RangeDataPoint(DateTime.Now.TimeOfDay.TotalMinutes + 30, DateTime.Now.TimeOfDay.TotalMinutes + 10, "5/18/2021"));
            rangeBarSeries.DataPoints.Add(new RangeDataPoint(DateTime.Now.TimeOfDay.TotalMinutes + 7, DateTime.Now.TimeOfDay.TotalMinutes + 5, "5/18/2021"));

            rangeBarSeries.DataPoints.Add(new RangeDataPoint(DateTime.Now.TimeOfDay.TotalMinutes + 4, DateTime.Now.TimeOfDay.TotalMinutes + 2, "5/19/2021"));

            rangeBarSeries.DataPoints.Add(new RangeDataPoint(DateTime.Now.TimeOfDay.TotalMinutes - 89, DateTime.Now.TimeOfDay.TotalMinutes - 100, "5/20/2021"));
            rangeBarSeries.DataPoints.Add(new RangeDataPoint(DateTime.Now.TimeOfDay.TotalMinutes + 7, DateTime.Now.TimeOfDay.TotalMinutes + 5, "5/20/2021"));

            rangeBarSeries.DataPoints.Add(new RangeDataPoint(DateTime.Now.TimeOfDay.TotalMinutes - 79, DateTime.Now.TimeOfDay.TotalMinutes - 90, "5/21/2021"));
            rangeBarSeries.DataPoints.Add(new RangeDataPoint(DateTime.Now.TimeOfDay.TotalMinutes + 7, DateTime.Now.TimeOfDay.TotalMinutes + 5, "5/21/2021"));

            rangeBarSeries.DataPoints.Add(new RangeDataPoint(DateTime.Now.TimeOfDay.TotalMinutes + 14, DateTime.Now.TimeOfDay.TotalMinutes + 10, "5/22/2021"));
            rangeBarSeries.DataPoints.Add(new RangeDataPoint(DateTime.Now.TimeOfDay.TotalMinutes + 7, DateTime.Now.TimeOfDay.TotalMinutes + 5, "5/22/2021"));


            rangeBarSeries.DataPoints.Add(new RangeDataPoint(DateTime.Now.TimeOfDay.TotalMinutes + 14, DateTime.Now.TimeOfDay.TotalMinutes + 10, "5/23/2021"));
            rangeBarSeries.DataPoints.Add(new RangeDataPoint(DateTime.Now.TimeOfDay.TotalMinutes + 7, DateTime.Now.TimeOfDay.TotalMinutes + 5, "5/23/2021"));

            rangeBarSeries.DataPoints.Add(new RangeDataPoint(DateTime.Now.TimeOfDay.TotalMinutes + 14, DateTime.Now.TimeOfDay.TotalMinutes + 10, "5/25/2021"));
            rangeBarSeries.DataPoints.Add(new RangeDataPoint(DateTime.Now.TimeOfDay.TotalMinutes + 7, DateTime.Now.TimeOfDay.TotalMinutes + 5, "5/24/2021"));

            rangeBarSeries.DataPoints.Add(new RangeDataPoint(DateTime.Now.TimeOfDay.TotalMinutes + 14, DateTime.Now.TimeOfDay.TotalMinutes + 10, "5/26/2021"));
            rangeBarSeries.DataPoints.Add(new RangeDataPoint(DateTime.Now.TimeOfDay.TotalMinutes + 7, DateTime.Now.TimeOfDay.TotalMinutes + 5, "5/26/2021"));

            CategoricalAxis horizontalAxis = new CategoricalAxis();
            horizontalAxis.ClipLabels = false;
            horizontalAxis.ShowLabels = false;
            //horizontalAxis.LabelRotationAngle = -90;//horizontalAxis.LabelFitMode = AxisLabelFitMode.Rotate;

            horizontalAxis.PlotMode = AxisPlotMode.BetweenTicks;
            rangeBarSeries.HorizontalAxis = horizontalAxis;

            chart.View.Series.Add(rangeBarSeries);
            chart.View.ShowToolTip = true;
            chart.View.ShowTrackBall = true;
            ChartTooltipController tooltipController = new ChartTooltipController();
            tooltipController.DataPointTooltipTextNeeded += tooltipController_DataPointTooltipTextNeeded;
            this.chart.View.Controllers.Add(tooltipController);

            rangeBarSeries.VerticalAxis.LabelFormatProvider = new MyFormatProvider();
            rangeBarSeries.VerticalAxis.ClipLabels = false;
            rangeBarSeries.VerticalAxis.LabelRotationAngle = -45;
            rangeBarSeries.VerticalAxis.LabelFitMode = AxisLabelFitMode.Rotate;

            LinearAxis verticalAxis = chart.View.Axes.Get<LinearAxis>(1);
            verticalAxis.Minimum = 0; //Minutes 0:00
            verticalAxis.Maximum = 1380; //Minutes 23:00
            verticalAxis.MajorStep = 60; //60 minutes in an hour
        }
 
 private void tooltipController_DataPointTooltipTextNeeded(object sender, DataPointTooltipTextNeededEventArgs e)
        {
            RangeDataPoint dp = e.DataPoint as RangeDataPoint;
            if (dp != null)
            {
                e.Text = dp.High + " " + dp.Low;
            }
        }

ChartView
Dess | Tech Support Engineer, Principal
Telerik team
 answered on 15 Jun 2021
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