How to dynamically change the pointSeries PointSize?

[Chinmaya]

I want to have 3 different point size for pointSeries and want to control this point size with check able menu dynamically.


                        PointSeries valueSeries = new PointSeries();             
                        valueSeries.ItemsSource = parameterResults;

       // current point size which is fixed
                        valueSeries.PointSize = new Size() { Height = 6, Width = 6 };
                
                        valueSeries.CategoryBinding = new PropertyNameDataPointBinding("Time");
                        valueSeries.ValueBinding = new PropertyNameDataPointBinding("Val");
                        valueSeries.Visibility = System.Windows.Visibility.Visible;
                        valueSeries.LegendSettings = new SeriesLegendSettings();
                        valueSeries.LegendSettings.Title = location.Replace(locationInfo.Name + ".", "");                       


I tried and failed can anyone help with this ?

sample project is appreciated.

Thanks in advance.

[Martin Ivanov]

Hi Chinmaya,

In order to control the PointSize of the series at runtime you can set the property in code or bind it to a property from your view model. 

For example if you have a Button that you want to change the point sizes you can subscribe for its Click event and inside its handler change the PointSize of the series.

private void Button_Click(object sender, RoutedEventArgs e)
        {
            var series = this.xChart.Series[0] as Telerik.Windows.Controls.ChartView.PointSeries;
            series.PointSize = new Size() { Height = 6, Width = 6 };
        }

You can take a look at the attached project to see this approach.

Regards,
Martin
Telerik

 

 

[Chinmaya]

Hi Martin,

I your example you have explained how to change the point size to higher value.
what i am expecting in my project is to change both the way ie: to increase the size and as well as decrees maybe by having one more button.

i tried creating one more button and changing the point size to lower values but it did not work for me it only worked if i increase the value.

one more thing i have eight different point series in a chart so is there any simple way to refer that series by name or anything like that?

[Martin Ivanov]

Hi Chinmaya,

I tested the project from my last reply with additional button that decreases the PointSize of the series and everything works as expected. Can you please take a look at the attachment and let me know if I am missing something?

As for referring the series, you can set their Name (or Tag) property when they are created and then you can use it to get them.

valueSeries.Name= "series2";
...
var series2 = this.xChart.Series.FirstOrDefault(x => x.Name == "series2") as Telerik.Windows.Controls.ChartView.PointSeries;

Regards,
Martin
Telerik

 

 

[Chinmaya]

Hi Martin,

Thank you for the tip on the "Series name".

problem still not solved, the same project if i run in my system still the decrees is not working ! ! !

I do not know the environment contribute or  not but FYI. I am using  MVS Express 2013 for web and my original project is " silverlight " 

I ran your project both in internet explorer and FireFox browsers still decrees is not working for me !! :-(

Regard,
Chinmaya

[Chinmaya]

Hi Martin,

I found out what was the problem for that strange behavior.

I was using  2013 Q3 dll's
now i switched to 2014 Q2 dll's  everything is working fine.

Thank you for the support again :-)

Regards,
Chinmaya