Steema Central

Posted: **Wed Oct 16, 2013 9:13 am**

Hi!

I'm using Steema TeeChart for .NET 2013 4.1.2013.07300 for Windows phone 7, iOS and Android (with Xamarin)

I'm drawing a bar chart with the following code (Windows phone 7 version):

Code: Select all

            var tChart = new TChart();
            tChart.Legend.LegendStyle = LegendStyles.Series;
            tChart.Legend.Alignment = LegendAlignments.Bottom;
            tChart.Header.Visible = false;
            tChart.Aspect.GestureOptions = Steema.TeeChart.Silverlight.Drawing.Aspect.Gestures.None;
            tChart.Aspect.GestureStyle = Steema.TeeChart.Silverlight.Drawing.Aspect.GestureStyles.InChart;
            tChart.Aspect.RenderSeriesAsImage = true;

            tChart.Series.Clear();
            tChart.Aspect.View3D = true;
            tChart.Aspect.Orthogonal = true;
            tChart.Header.Visible = true;

            tChart.Header.Text = Strings.RealTimeStatisticsByResource;
            tChart.Header.HorizontalAlignment = HorizontalAlignment.Center;
            tChart.Header.Font.Size = 14;

            //Alarms
            String subheader = "";
            foreach (var resourceStatData in data)
            {
                if (resourceStatData.Alarms.Count > 0)
                {
                    if (!string.IsNullOrEmpty(subheader))
                    {
                        subheader += " | ";
                    }
                    subheader += resourceStatData.Name + " : ";
                    int index = 0;
                    foreach (var alarmInfo in resourceStatData.Alarms)
                    {
                        if (index == 0)
                        {
                            subheader += ",";
                        }
                        subheader += alarmInfo.Name;
                        index++;
                    }
                }
            }

            if (!string.IsNullOrEmpty(subheader))
            {
                tChart.SubHeader.Visible = true;
                tChart.SubHeader.Font.Size = 8;
                tChart.SubHeader.Font.Color = Colors.Red;
                tChart.SubHeader.HorizontalAlignment = HorizontalAlignment.Center;
                tChart.SubHeader.Text = subheader;
            }
            else
            {
                tChart.SubHeader.Visible = false;
            }

            var registered = new Bar { Title = Strings.Registered, Color = Colors.Gray};
            registered.GetSeriesMark += GetSeriesMark;
            registered.BarStyle = BarStyles.RectGradient;
            if (stacked)
            {
                registered.MultiBar = MultiBars.Stacked;
                registered.MarksOnBar = true;
            }
            var busy = new Bar { Title = Strings.Busy, Color = Colors.Blue };
            busy.GetSeriesMark += GetSeriesMark;
            if (stacked)
            {
                busy.MultiBar = MultiBars.Stacked;
                busy.MarksOnBar = true;
            }
            var pause = new Bar { Title = Strings.Paused, Color = Colors.Yellow };
            pause.GetSeriesMark += GetSeriesMark;
            if (stacked)
            {
                pause.MultiBar = MultiBars.Stacked;
                pause.MarksOnBar = true;
            }
            var free = new Bar { Title = Strings.Free, Color = Colors.Green };
            free.GetSeriesMark += GetSeriesMark;
            if (stacked)
            {
                free.MultiBar = MultiBars.Stacked;
                free.MarksOnBar = true;
            }
            var deferred = new Bar { Title = Strings.Deferred, Color = Colors.Brown };
            deferred.GetSeriesMark += GetSeriesMark;
            if (stacked)
            {
                deferred.MultiBar = MultiBars.Stacked;
                deferred.MarksOnBar = true;
            }
            var other = new Bar { Title = Strings.OtherSkill, Color = Colors.Red };
            other.GetSeriesMark += GetSeriesMark;
            if (stacked)
            {
                other.MultiBar = MultiBars.Stacked;
                other.MarksOnBar = true;
            }

            if (stacked)
            {
                registered.Active = false;
            }

            tChart.Series.Add(registered);
            tChart.Series.Add(busy);
            tChart.Series.Add(pause);
            tChart.Series.Add(free);
            tChart.Series.Add(deferred);
            tChart.Series.Add(other);

            foreach (var item in data)
            {
                string name;
                if (item.IsLogicalResource())
                {
                    name = String.Format("{0}\nT: {1} s Q: {2}", item.Name, item.QueueMaxTime, item.QueueTotal);
                }
                else
                {
                    name = item.Name;
                }

                registered.Add(item.RegisteredTotal, name);
                busy.Add(item.BusyTotal, name);
                deferred.Add(item.DeferredTotal, name);
                free.Add(item.FreeTotal, name);
                other.Add(item.OtherskillTotal, name);
                pause.Add(item.PauseTotal, name);
            }

This results in a chart with the "Registered" bar and legend color in a wrong yellow color instead of a gray color.

: Chart view; chart1.png (80.69 KiB) Viewed 5254 times

In android version only the legend color is wrong.

Is this a known bug?

Posted: **Thu Oct 17, 2013 10:34 am**

Hello,

I could reproduce the same issue in Android using this code:

Code: Select all

      var tChart = new TChart(this);
      tChart.Legend.Alignment = LegendAlignments.Bottom;

      Steema.TeeChart.Themes.BlackIsBackTheme myTheme = new Steema.TeeChart.Themes.BlackIsBackTheme(tChart.Chart);
      myTheme.Apply();

      var registered = new Bar { Title = "Registered", Color = Color.Gray };
      var stacked = false;

      registered.BarStyle = BarStyles.RectGradient;
      //registered.Gradient.StartColor = registered.Color;
      //registered.Gradient.EndColor = Color.White;
      if (stacked)
      {
        registered.MultiBar = MultiBars.Stacked;
        registered.MarksOnBar = true;
      }
      var busy = new Bar { Title = "Busy", Color = Color.Blue };
      if (stacked)
      {
        busy.MultiBar = MultiBars.Stacked;
        busy.MarksOnBar = true;
      }
      var pause = new Bar { Title = "Paused", Color = Color.Yellow };
      if (stacked)
      {
        pause.MultiBar = MultiBars.Stacked;
        pause.MarksOnBar = true;
      }
      var free = new Bar { Title = "Free", Color = Color.Green };
      if (stacked)
      {
        free.MultiBar = MultiBars.Stacked;
        free.MarksOnBar = true;
      }
      var deferred = new Bar { Title = "Deferred", Color = Color.Brown };
      if (stacked)
      {
        deferred.MultiBar = MultiBars.Stacked;
        deferred.MarksOnBar = true;
      }
      var other = new Bar { Title = "OtherSkill", Color = Color.Red };
      if (stacked)
      {
        other.MultiBar = MultiBars.Stacked;
        other.MarksOnBar = true;
      }

      if (stacked)
      {
        registered.Active = false;
      }

      tChart.Series.Add(registered);
      tChart.Series.Add(busy);
      tChart.Series.Add(pause);
      tChart.Series.Add(free);
      tChart.Series.Add(deferred);
      tChart.Series.Add(other);

      registered.FillSampleValues(2);
      busy.FillSampleValues(2);
      deferred.FillSampleValues(2);
      free.FillSampleValues(2);
      other.FillSampleValues(2);
      pause.FillSampleValues(2);

      SetContentView(tChart);

Which produces this chart:

: AndroidRectGradient.jpg (190.87 KiB) Viewed 5231 times

In my opinion, this is not a bug. This is caused by setting BarStyle to BarStyles.RectGradient. The Gradient setting prevails over the Series.Color. So the solution is either removing BarStyles.RectGradient or setting different Gradient colors, for example (see commented out code in my example):

Code: Select all

      registered.Gradient.StartColor = registered.Color;
      registered.Gradient.EndColor = Color.White;

Posted: **Thu Oct 17, 2013 11:58 am**

You are right, using Gradient solves the problem.

Thanks!

Steema Central

Wrong color in bar series

Wrong color in bar series

Re: Wrong color in bar series

Re: Wrong color in bar series