Get default color

[Geraschenko]

How can  get default color from LineSeries? 

Line is colorful, but in LineSeries color and colorModel is not set.

[Geetha Rajendran]

Hi Geraschenko, 

  

Greetings from Syncfusion, 

  

You can get the default color of series by using Dependency services. Please refer the below code snippet. 

  

Code snippet [C#] – Portable 

public interface IChartDependencyService 

{ 

   List<Color> GetColors(SfChart chart); 

} 

  

private void GetColors_Clicked(object sender, EventArgs e) 

{ 

  List<Color> colors = DependencyService.Get<IChartDependencyService>().GetColors(Chart); 

} 

  

Code snippet [C#] – Android 

    public class AndroidDependencyService : IChartDependencyService 

    { 

        public List<Color> GetColors(SfChart chart) 

        { 

            var nativeChart = SfChartRenderer.GetNativeObject(typeof(SfChart), chart) as native.SfChart; 

            List<Android.Graphics.Color> colorCollection = nativeChart.ColorModel.GetColors(nativeChart.ColorModel.ColorPalette); 

            List<Color> colors= new List<Color>(); 

  

            foreach(var color in colorCollection) 

            { 

               colors.Add(GetFormsColor(color));                  

            } 

  

            return colors; 

        } 

  

        internal static Color GetFormsColor(Android.Graphics.Color color) 

        { 

            return Color.FromRgba(color.R, color.G, color.B, color.A); 

        } 

    } 

  

Code snippet [C#] – iOS 

    Public class iOSDependencyService : IChartDependencyService 

    { 

        public List<Color> GetColors(SfChart chart) 

        { 

            var nativeChart = SfChartRenderer.GetNativeObject(typeof(SfChart), chart) as native.SFChart; 

            List<UIColor> colorCollection = nativeChart.ColorModel.GetColors(nativeChart.ColorModel.Palette); 

            List<Color> colors = new List<Color>(); 

  

            foreach (var color in colorCollection) 

            { 

                colors.Add(GetFormsColor(color)); 

            } 

  

            return colors; 

        } 

  

        internal static Color GetFormsColor(UIColor color) 

        { 

            if (color == null) 

            { 

                return Color.Default; 

            } 

  

            float red = 0.0f; 

            float green = 0.0f; 

            float blue = 0.0f; 

            float alpha = 0.0f; 

            CGColor colorRef = color.CGColor; 

            nfloat[] RGBAcomponents = colorRef.Components; 

  

            if (RGBAcomponents.Count() < 4) 

            { 

                return Color.Default; 

            } 

  

            red = (float)RGBAcomponents[0]; 

            green = (float)RGBAcomponents[1]; 

            blue = (float)RGBAcomponents[2]; 

            alpha = (float)RGBAcomponents[3]; 

  

            return Color.FromRgba(red, green, blue, alpha); 

        } 

    } 

  

Code snippet [C#] – UWP 

    public class UWPDependencyService : IChartDependencyService 

    { 

        public List<Color> GetColors(SfChart chart) 

        { 

            var nativeChart = SfChartRenderer.GetNativeObject(typeof(SfChart), chart) as native.SfChart; 

            List<Brush> brushes = nativeChart.ColorModel.GetBrushes(nativeChart.Palette); 

            List<Color> colors = new List<Color>(); 

  

            foreach (var brush in brushes) 

            { 

                colors.Add(GetFormsColor((brush as SolidColorBrush).Color)); 

            } 

  

            return colors; 

        } 

  

        internal static Xamarin.Forms.Color GetFormsColor(Windows.UI.Color color) 

        { 

           return Xamarin.Forms.Color.FromRgba(color.R, color.G, color.B, color.A); 

        } 

    } 

  

Sample – http://www.syncfusion.com/downloads/support/forum/141502/ze/GetColorModel-1263281595.zip 

  

Regards, 

Geetha R.