public Chart CreateChart()
{
Chart chart = new Chart();
chart.Size = new System.Drawing.Size(3508, 2480);
var chartArea = new ChartArea();
chartArea.AxisX.LabelStyle.Format = XFormat;
chartArea.AxisY.LabelStyle.Format = YFormat;
chartArea.AxisX.LabelStyle.Font = new Font("Arial", 26);
chartArea.AxisY.LabelStyle.Font = new Font("Arial", 30);
chartArea.AxisX.LabelStyle.Angle = 90;
chartArea.AxisX.TitleFont = new Font("Arial", 30, FontStyle.Bold);
chartArea.AxisY.Title = YUnit;
chartArea.AxisY.TitleFont = new Font("Arial", 30, FontStyle.Bold);
chartArea.AxisX.LabelAutoFitMinFontSize = 20;
chartArea.AxisX.LabelAutoFitStyle = LabelAutoFitStyles.LabelsAngleStep90;
chartArea.AxisY.LabelAutoFitMinFontSize = 10;
chartArea.AxisX.LabelAutoFitMaxFontSize = 30;
chartArea.AxisY.LabelAutoFitMaxFontSize = 30;
chartArea.AxisX.MajorGrid.LineColor = Color.DarkGray;
chartArea.AxisY.MajorGrid.LineColor = Color.DarkGray;
TimeSpan ts = MaxX - MinX;
if (ts.TotalHours < 30)
{
chartArea.AxisX.IntervalType = DateTimeIntervalType.Hours;
chartArea.AxisX.Title = "Time";
}
else if (ts.TotalDays < 40)
{
chartArea.AxisX.IntervalType = DateTimeIntervalType.Days;
chartArea.AxisX.Title = "Dato";
}
else if (ts.TotalDays < 370)
{
chartArea.AxisX.IntervalType = DateTimeIntervalType.Months;
chartArea.AxisX.Title = "Måned";
}
else
{
chartArea.AxisX.IntervalType = DateTimeIntervalType.Years;
}
chartArea.AxisX.Interval = 1;
chart.ChartAreas.Add(chartArea);
var series = new Series();
series.Name = Note;
series.ChartType = SeriesChartType.Column;
series.XValueType = ChartValueType.DateTime;
series.YValueType = ChartValueType.Double;
series.Font = new Font("Arial", 25);
series.LabelFormat = "N2";
series.LabelAngle = 90;
series.IsValueShownAsLabel = true;
Title title = new Title();
title.Font = new Font("Arial", 40);
title.Text = $"{MinX.ToLongDateString()}, {MinX.ToShortTimeString()} - " +
$"{MaxX.ToLongDateString()}, {MaxX.ToShortTimeString()}{Environment.NewLine}" +
$"{Note}{Environment.NewLine}" +
$"Total forbrug: {Total.ToString(YFormat)}";
chart.Titles.Add(title);
chart.Series.Add(series);
// bind the datapoints
chart.Series[Note].Points.DataBindXY(X, Y);
if (25 < ts.TotalDays && ts.TotalDays < 35)
{
for (int i = 0; i < X.Length; i++)
{
if (X[i].DayOfWeek == DayOfWeek.Saturday || (X[i].DayOfWeek == DayOfWeek.Sunday))
{
chart.Series[Note].Points[i].Color = Color.DarkSlateGray;
}
}
}
// draw!
chart.Invalidate();
return(chart);
}