#region License Information /* HeuristicLab * Copyright (C) 2002-2015 Heuristic and Evolutionary Algorithms Laboratory (HEAL) * * This file is part of HeuristicLab. * * HeuristicLab is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * HeuristicLab is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with HeuristicLab. If not, see . */ #endregion using System; using System.Collections.Generic; using System.Drawing; using System.Linq; using System.Windows.Forms; using System.Windows.Forms.DataVisualization.Charting; using HeuristicLab.Collections; using HeuristicLab.Core.Views; using HeuristicLab.MainForm; namespace HeuristicLab.Analysis.Views { [View("IndexedDataTable View")] [Content(typeof(IndexedDataTable<>), true)] public partial class IndexedDataTableView : NamedItemView { protected List invisibleSeries; protected Dictionary>, IndexedDataRow> valuesRowsTable; public new IndexedDataTable Content { get { return (IndexedDataTable)base.Content; } set { base.Content = value; } } public IndexedDataTableView() { InitializeComponent(); valuesRowsTable = new Dictionary>, IndexedDataRow>(); invisibleSeries = new List(); chart.CustomizeAllChartAreas(); chart.ChartAreas[0].CursorX.Interval = 1; chart.SuppressExceptions = true; } #region Event Handler Registration protected override void DeregisterContentEvents() { foreach (var row in Content.Rows) DeregisterDataRowEvents(row); Content.VisualPropertiesChanged -= new EventHandler(Content_VisualPropertiesChanged); Content.Rows.ItemsAdded -= new CollectionItemsChangedEventHandler>(Rows_ItemsAdded); Content.Rows.ItemsRemoved -= new CollectionItemsChangedEventHandler>(Rows_ItemsRemoved); Content.Rows.ItemsReplaced -= new CollectionItemsChangedEventHandler>(Rows_ItemsReplaced); Content.Rows.CollectionReset -= new CollectionItemsChangedEventHandler>(Rows_CollectionReset); base.DeregisterContentEvents(); } protected override void RegisterContentEvents() { base.RegisterContentEvents(); Content.VisualPropertiesChanged += new EventHandler(Content_VisualPropertiesChanged); Content.Rows.ItemsAdded += new CollectionItemsChangedEventHandler>(Rows_ItemsAdded); Content.Rows.ItemsRemoved += new CollectionItemsChangedEventHandler>(Rows_ItemsRemoved); Content.Rows.ItemsReplaced += new CollectionItemsChangedEventHandler>(Rows_ItemsReplaced); Content.Rows.CollectionReset += new CollectionItemsChangedEventHandler>(Rows_CollectionReset); foreach (var row in Content.Rows) RegisterDataRowEvents(row); } /// /// Automatically called for every existing data row and whenever a data row is added /// to the data table. Do not call this method directly. /// /// The DataRow that was added. protected virtual void RegisterDataRowEvents(IndexedDataRow row) { row.NameChanged += new EventHandler(Row_NameChanged); row.VisualPropertiesChanged += new EventHandler(Row_VisualPropertiesChanged); valuesRowsTable.Add(row.Values, row); row.Values.ItemsAdded += new CollectionItemsChangedEventHandler>>(Values_ItemsAdded); row.Values.ItemsRemoved += new CollectionItemsChangedEventHandler>>(Values_ItemsRemoved); row.Values.ItemsReplaced += new CollectionItemsChangedEventHandler>>(Values_ItemsReplaced); row.Values.ItemsMoved += new CollectionItemsChangedEventHandler>>(Values_ItemsMoved); row.Values.CollectionReset += new CollectionItemsChangedEventHandler>>(Values_CollectionReset); } /// /// Automatically called for every data row that is removed from the DataTable. Do /// not directly call this method. /// /// The DataRow that was removed. protected virtual void DeregisterDataRowEvents(IndexedDataRow row) { row.Values.ItemsAdded -= new CollectionItemsChangedEventHandler>>(Values_ItemsAdded); row.Values.ItemsRemoved -= new CollectionItemsChangedEventHandler>>(Values_ItemsRemoved); row.Values.ItemsReplaced -= new CollectionItemsChangedEventHandler>>(Values_ItemsReplaced); row.Values.ItemsMoved -= new CollectionItemsChangedEventHandler>>(Values_ItemsMoved); row.Values.CollectionReset -= new CollectionItemsChangedEventHandler>>(Values_CollectionReset); valuesRowsTable.Remove(row.Values); row.VisualPropertiesChanged -= new EventHandler(Row_VisualPropertiesChanged); row.NameChanged -= new EventHandler(Row_NameChanged); } #endregion protected override void OnContentChanged() { base.OnContentChanged(); invisibleSeries.Clear(); chart.Titles[0].Text = string.Empty; chart.ChartAreas[0].AxisX.Title = string.Empty; chart.ChartAreas[0].AxisY.Title = string.Empty; chart.ChartAreas[0].AxisY2.Title = string.Empty; chart.ChartAreas[0].AxisX.IsLogarithmic = false; chart.ChartAreas[0].AxisX2.IsLogarithmic = false; chart.ChartAreas[0].AxisY.IsLogarithmic = false; chart.ChartAreas[0].AxisY2.IsLogarithmic = false; chart.Series.Clear(); if (Content != null) { chart.Titles[0].Text = Content.Name; foreach (var row in Content.Rows) AddDataRow(row); ConfigureChartArea(chart.ChartAreas[0]); RecalculateAxesScale(chart.ChartAreas[0]); } } protected override void SetEnabledStateOfControls() { base.SetEnabledStateOfControls(); chart.Enabled = Content != null; } /// /// Add the DataRow as a series to the chart. /// /// DataRow to add as series to the chart. protected virtual void AddDataRow(IndexedDataRow row) { if (row.Values.Count == 0) return; Series series = new Series(row.Name); if (row.VisualProperties.DisplayName.Trim() != String.Empty) series.LegendText = row.VisualProperties.DisplayName; else series.LegendText = row.Name; ConfigureSeries(series, row); FillSeriesWithRowValues(series, row); chart.Series.Add(series); ConfigureChartArea(chart.ChartAreas[0]); RecalculateAxesScale(chart.ChartAreas[0]); UpdateYCursorInterval(); } private void ConfigureSeries(Series series, IndexedDataRow row) { RemoveCustomPropertyIfExists(series, "PointWidth"); series.BorderWidth = 1; series.BorderDashStyle = ChartDashStyle.Solid; series.BorderColor = Color.Empty; if (row.VisualProperties.Color != Color.Empty) series.Color = row.VisualProperties.Color; else series.Color = Color.Empty; series.IsVisibleInLegend = row.VisualProperties.IsVisibleInLegend; series.SmartLabelStyle.Enabled = true; series.SmartLabelStyle.AllowOutsidePlotArea = LabelOutsidePlotAreaStyle.Yes; series.SmartLabelStyle.CalloutLineAnchorCapStyle = LineAnchorCapStyle.None; series.SmartLabelStyle.CalloutLineColor = series.Color; series.SmartLabelStyle.CalloutLineWidth = 2; series.SmartLabelStyle.CalloutStyle = LabelCalloutStyle.Underlined; series.SmartLabelStyle.IsOverlappedHidden = false; series.SmartLabelStyle.MaxMovingDistance = 200; switch (row.VisualProperties.ChartType) { case DataRowVisualProperties.DataRowChartType.Line: series.ChartType = SeriesChartType.FastLine; series.BorderWidth = row.VisualProperties.LineWidth; series.BorderDashStyle = ConvertLineStyle(row.VisualProperties.LineStyle); break; case DataRowVisualProperties.DataRowChartType.Bars: // Bar is incompatible with anything but Bar and StackedBar* if (!chart.Series.Any(x => x.ChartType != SeriesChartType.Bar && x.ChartType != SeriesChartType.StackedBar && x.ChartType != SeriesChartType.StackedBar100)) { series.ChartType = SeriesChartType.Bar; chart.ChartAreas[0].AxisX.Interval = 1; } else { series.ChartType = SeriesChartType.FastPoint; //default row.VisualProperties.ChartType = DataRowVisualProperties.DataRowChartType.Points; } break; case DataRowVisualProperties.DataRowChartType.Columns: series.ChartType = SeriesChartType.Column; break; case DataRowVisualProperties.DataRowChartType.Points: series.ChartType = SeriesChartType.FastPoint; break; case DataRowVisualProperties.DataRowChartType.StepLine: series.ChartType = SeriesChartType.StepLine; series.BorderWidth = row.VisualProperties.LineWidth; series.BorderDashStyle = ConvertLineStyle(row.VisualProperties.LineStyle); break; default: series.ChartType = SeriesChartType.FastPoint; break; } series.YAxisType = row.VisualProperties.SecondYAxis ? AxisType.Secondary : AxisType.Primary; series.XAxisType = row.VisualProperties.SecondXAxis ? AxisType.Secondary : AxisType.Primary; if (row.VisualProperties.DisplayName.Trim() != String.Empty) series.LegendText = row.VisualProperties.DisplayName; else series.LegendText = row.Name; series.ToolTip = series.LegendText + " X = #VALX, Y = #VALY"; } private void ConfigureChartArea(ChartArea area) { if (Content.VisualProperties.TitleFont != null) chart.Titles[0].Font = Content.VisualProperties.TitleFont; if (!Content.VisualProperties.TitleColor.IsEmpty) chart.Titles[0].ForeColor = Content.VisualProperties.TitleColor; if (Content.VisualProperties.AxisTitleFont != null) area.AxisX.TitleFont = Content.VisualProperties.AxisTitleFont; if (!Content.VisualProperties.AxisTitleColor.IsEmpty) area.AxisX.TitleForeColor = Content.VisualProperties.AxisTitleColor; area.AxisX.Title = Content.VisualProperties.XAxisTitle; if (Content.VisualProperties.AxisTitleFont != null) area.AxisX2.TitleFont = Content.VisualProperties.AxisTitleFont; if (!Content.VisualProperties.AxisTitleColor.IsEmpty) area.AxisX2.TitleForeColor = Content.VisualProperties.AxisTitleColor; area.AxisX2.Title = Content.VisualProperties.SecondXAxisTitle; if (Content.VisualProperties.AxisTitleFont != null) area.AxisY.TitleFont = Content.VisualProperties.AxisTitleFont; if (!Content.VisualProperties.AxisTitleColor.IsEmpty) area.AxisY.TitleForeColor = Content.VisualProperties.AxisTitleColor; area.AxisY.Title = Content.VisualProperties.YAxisTitle; if (Content.VisualProperties.AxisTitleFont != null) area.AxisY2.TitleFont = Content.VisualProperties.AxisTitleFont; if (!Content.VisualProperties.AxisTitleColor.IsEmpty) area.AxisY2.TitleForeColor = Content.VisualProperties.AxisTitleColor; area.AxisY2.Title = Content.VisualProperties.SecondYAxisTitle; if (typeof(T).Equals(typeof(DateTime))) { area.AxisX.IntervalType = DateTimeIntervalType.Hours; area.AxisX.LabelStyle.Format = "dd.MM.yyyy HH:mm"; area.AxisX.IntervalAutoMode = IntervalAutoMode.VariableCount; } } private void RecalculateAxesScale(ChartArea area) { // Reset the axes bounds so that RecalculateAxesScale() will assign new bounds foreach (Axis a in area.Axes) { a.Minimum = double.NaN; a.Maximum = double.NaN; } if (chart.Series.Any(x => x.Enabled && x.XAxisType == AxisType.Primary && (x.Points.Count == 0 || x.Points.Any(y => y.XValue <= 0)))) area.AxisX.IsLogarithmic = false; else area.AxisX.IsLogarithmic = Content.VisualProperties.XAxisLogScale; if (chart.Series.Any(x => x.Enabled && x.XAxisType == AxisType.Secondary && (x.Points.Count == 0 || x.Points.Any(y => y.XValue <= 0)))) area.AxisX2.IsLogarithmic = false; else area.AxisX2.IsLogarithmic = Content.VisualProperties.SecondXAxisLogScale; if (chart.Series.Any(x => x.Enabled && x.YAxisType == AxisType.Primary && (x.Points.Count == 0 || x.Points.Any(y => y.YValues.Min() <= 0)))) area.AxisY.IsLogarithmic = false; else area.AxisY.IsLogarithmic = Content.VisualProperties.YAxisLogScale; if (chart.Series.Any(x => x.Enabled && x.YAxisType == AxisType.Secondary && (x.Points.Count == 0 || x.Points.Any(y => y.YValues.Min() <= 0)))) area.AxisY2.IsLogarithmic = false; else area.AxisY2.IsLogarithmic = Content.VisualProperties.SecondYAxisLogScale; area.RecalculateAxesScale(); area.AxisX.IsMarginVisible = false; area.AxisX2.IsMarginVisible = false; if (!Content.VisualProperties.XAxisMinimumAuto && !double.IsNaN(Content.VisualProperties.XAxisMinimumFixedValue)) area.AxisX.Minimum = Content.VisualProperties.XAxisMinimumFixedValue; if (!Content.VisualProperties.XAxisMaximumAuto && !double.IsNaN(Content.VisualProperties.XAxisMaximumFixedValue)) area.AxisX.Maximum = Content.VisualProperties.XAxisMaximumFixedValue; if (!Content.VisualProperties.SecondXAxisMinimumAuto && !double.IsNaN(Content.VisualProperties.SecondXAxisMinimumFixedValue)) area.AxisX2.Minimum = Content.VisualProperties.SecondXAxisMinimumFixedValue; if (!Content.VisualProperties.SecondXAxisMaximumAuto && !double.IsNaN(Content.VisualProperties.SecondXAxisMaximumFixedValue)) area.AxisX2.Maximum = Content.VisualProperties.SecondXAxisMaximumFixedValue; if (!Content.VisualProperties.YAxisMinimumAuto && !double.IsNaN(Content.VisualProperties.YAxisMinimumFixedValue)) area.AxisY.Minimum = Content.VisualProperties.YAxisMinimumFixedValue; if (!Content.VisualProperties.YAxisMaximumAuto && !double.IsNaN(Content.VisualProperties.YAxisMaximumFixedValue)) area.AxisY.Maximum = Content.VisualProperties.YAxisMaximumFixedValue; if (!Content.VisualProperties.SecondYAxisMinimumAuto && !double.IsNaN(Content.VisualProperties.SecondYAxisMinimumFixedValue)) area.AxisY2.Minimum = Content.VisualProperties.SecondYAxisMinimumFixedValue; if (!Content.VisualProperties.SecondYAxisMaximumAuto && !double.IsNaN(Content.VisualProperties.SecondYAxisMaximumFixedValue)) area.AxisY2.Maximum = Content.VisualProperties.SecondYAxisMaximumFixedValue; if (area.AxisX.Minimum >= area.AxisX.Maximum) area.AxisX.Maximum = area.AxisX.Minimum + 1; if (area.AxisX2.Minimum >= area.AxisX2.Maximum) area.AxisX2.Maximum = area.AxisX2.Minimum + 1; if (area.AxisY.Minimum >= area.AxisY.Maximum) area.AxisY.Maximum = area.AxisY.Minimum + 1; if (area.AxisY2.Minimum >= area.AxisY2.Maximum) area.AxisY2.Maximum = area.AxisY2.Minimum + 1; } /// /// Set the Y Cursor interval to visible points of enabled series. /// protected virtual void UpdateYCursorInterval() { double interestingValuesRange = ( from series in chart.Series where series.Enabled let values = (from point in series.Points where !point.IsEmpty select point.YValues[0]).DefaultIfEmpty(1.0) let range = values.Max() - values.Min() where range > 0.0 select range ).DefaultIfEmpty(1.0).Min(); double digits = (int)Math.Log10(interestingValuesRange) - 3; double yZoomInterval = Math.Pow(10, digits); this.chart.ChartAreas[0].CursorY.Interval = yZoomInterval; } /// /// Remove the corresponding series for a certain DataRow. /// /// DataRow which series should be removed. protected virtual void RemoveDataRow(IndexedDataRow row) { if (chart.Series.All(x => x.Name != row.Name)) return; Series series = chart.Series[row.Name]; chart.Series.Remove(series); if (invisibleSeries.Contains(series)) invisibleSeries.Remove(series); RecalculateAxesScale(chart.ChartAreas[0]); } #region Event Handlers #region Content Event Handlers protected override void Content_NameChanged(object sender, EventArgs e) { if (InvokeRequired) Invoke(new EventHandler(Content_NameChanged), sender, e); else { chart.Titles[0].Text = Content.Name; base.Content_NameChanged(sender, e); } } private void Content_VisualPropertiesChanged(object sender, EventArgs e) { if (InvokeRequired) Invoke(new EventHandler(Content_VisualPropertiesChanged), sender, e); else { ConfigureChartArea(chart.ChartAreas[0]); RecalculateAxesScale(chart.ChartAreas[0]); // axes min/max could have changed } } #endregion #region Rows Event Handlers private void Rows_ItemsAdded(object sender, CollectionItemsChangedEventArgs> e) { if (InvokeRequired) Invoke(new CollectionItemsChangedEventHandler>(Rows_ItemsAdded), sender, e); else { foreach (var row in e.Items) { AddDataRow(row); RegisterDataRowEvents(row); } } } private void Rows_ItemsRemoved(object sender, CollectionItemsChangedEventArgs> e) { if (InvokeRequired) Invoke(new CollectionItemsChangedEventHandler>(Rows_ItemsRemoved), sender, e); else { foreach (var row in e.Items) { DeregisterDataRowEvents(row); RemoveDataRow(row); } } } private void Rows_ItemsReplaced(object sender, CollectionItemsChangedEventArgs> e) { if (InvokeRequired) Invoke(new CollectionItemsChangedEventHandler>(Rows_ItemsReplaced), sender, e); else { foreach (var row in e.OldItems) { DeregisterDataRowEvents(row); RemoveDataRow(row); } foreach (var row in e.Items) { AddDataRow(row); RegisterDataRowEvents(row); } } } private void Rows_CollectionReset(object sender, CollectionItemsChangedEventArgs> e) { if (InvokeRequired) Invoke(new CollectionItemsChangedEventHandler>(Rows_CollectionReset), sender, e); else { foreach (var row in e.OldItems) { DeregisterDataRowEvents(row); RemoveDataRow(row); } foreach (var row in e.Items) { AddDataRow(row); RegisterDataRowEvents(row); } } } #endregion #region Row Event Handlers private void Row_VisualPropertiesChanged(object sender, EventArgs e) { if (InvokeRequired) Invoke(new EventHandler(Row_VisualPropertiesChanged), sender, e); else { var row = (IndexedDataRow)sender; Series series = chart.Series[row.Name]; series.Points.Clear(); ConfigureSeries(series, row); FillSeriesWithRowValues(series, row); RecalculateAxesScale(chart.ChartAreas[0]); } } private void Row_NameChanged(object sender, EventArgs e) { if (InvokeRequired) Invoke(new EventHandler(Row_NameChanged), sender, e); else { var row = (IndexedDataRow)sender; chart.Series[row.Name].Name = row.Name; } } #endregion #region Values Event Handlers private void Values_ItemsAdded(object sender, CollectionItemsChangedEventArgs>> e) { if (InvokeRequired) Invoke(new CollectionItemsChangedEventHandler>>(Values_ItemsAdded), sender, e); else { IndexedDataRow row = null; valuesRowsTable.TryGetValue((IObservableList>)sender, out row); if (row != null) { Series rowSeries = chart.Series[row.Name]; if (!invisibleSeries.Contains(rowSeries)) { rowSeries.Points.Clear(); FillSeriesWithRowValues(rowSeries, row); RecalculateAxesScale(chart.ChartAreas[0]); UpdateYCursorInterval(); } } else AddDataRow((IndexedDataRow)sender); } } private void Values_ItemsRemoved(object sender, CollectionItemsChangedEventArgs>> e) { if (InvokeRequired) Invoke(new CollectionItemsChangedEventHandler>>(Values_ItemsRemoved), sender, e); else { IndexedDataRow row = null; valuesRowsTable.TryGetValue((IObservableList>)sender, out row); if (row != null) { if (row.Values.Count == 0) { RemoveDataRow(row); } else { Series rowSeries = chart.Series[row.Name]; if (!invisibleSeries.Contains(rowSeries)) { rowSeries.Points.Clear(); FillSeriesWithRowValues(rowSeries, row); RecalculateAxesScale(chart.ChartAreas[0]); UpdateYCursorInterval(); } } } } } private void Values_ItemsReplaced(object sender, CollectionItemsChangedEventArgs>> e) { if (InvokeRequired) Invoke(new CollectionItemsChangedEventHandler>>(Values_ItemsReplaced), sender, e); else { IndexedDataRow row = null; valuesRowsTable.TryGetValue((IObservableList>)sender, out row); if (row != null) { if (row.Values.Count == 0) { RemoveDataRow(row); } else { Series rowSeries = chart.Series[row.Name]; if (!invisibleSeries.Contains(rowSeries)) { if (row.VisualProperties.ChartType == DataRowVisualProperties.DataRowChartType.Histogram) { rowSeries.Points.Clear(); FillSeriesWithRowValues(rowSeries, row); } else { foreach (IndexedItem> item in e.Items) { rowSeries.Points[item.Index].SetValueXY(item.Value.Item1, item.Value.Item2); } } RecalculateAxesScale(chart.ChartAreas[0]); UpdateYCursorInterval(); } } } } } private void Values_ItemsMoved(object sender, CollectionItemsChangedEventArgs>> e) { if (InvokeRequired) Invoke(new CollectionItemsChangedEventHandler>>(Values_ItemsMoved), sender, e); else { IndexedDataRow row = null; valuesRowsTable.TryGetValue((IObservableList>)sender, out row); if (row != null) { Series rowSeries = chart.Series[row.Name]; if (!invisibleSeries.Contains(rowSeries)) { rowSeries.Points.Clear(); FillSeriesWithRowValues(rowSeries, row); RecalculateAxesScale(chart.ChartAreas[0]); UpdateYCursorInterval(); } } } } private void Values_CollectionReset(object sender, CollectionItemsChangedEventArgs>> e) { if (InvokeRequired) Invoke(new CollectionItemsChangedEventHandler>>(Values_CollectionReset), sender, e); else { IndexedDataRow row = null; valuesRowsTable.TryGetValue((IObservableList>)sender, out row); if (row != null) { if (row.Values.Count == 0) { RemoveDataRow(row); } else { Series rowSeries = chart.Series[row.Name]; if (!invisibleSeries.Contains(rowSeries)) { rowSeries.Points.Clear(); FillSeriesWithRowValues(rowSeries, row); RecalculateAxesScale(chart.ChartAreas[0]); UpdateYCursorInterval(); } } } } } #endregion #endregion #region Chart Event Handlers private void chart_MouseDown(object sender, MouseEventArgs e) { HitTestResult result = chart.HitTest(e.X, e.Y); if (result.ChartElementType == ChartElementType.LegendItem) { ToggleSeriesVisible(result.Series); } } private void chart_MouseMove(object sender, MouseEventArgs e) { HitTestResult result = chart.HitTest(e.X, e.Y); if (result.ChartElementType == ChartElementType.LegendItem) this.Cursor = Cursors.Hand; else this.Cursor = Cursors.Default; } private void chart_CustomizeLegend(object sender, CustomizeLegendEventArgs e) { foreach (LegendItem legendItem in e.LegendItems) { var series = chart.Series[legendItem.SeriesName]; if (series != null) { bool seriesIsInvisible = invisibleSeries.Contains(series); foreach (LegendCell cell in legendItem.Cells) { cell.ForeColor = seriesIsInvisible ? Color.Gray : Color.Black; } } } } #endregion private void ToggleSeriesVisible(Series series) { if (!invisibleSeries.Contains(series)) { series.Points.Clear(); invisibleSeries.Add(series); } else { invisibleSeries.Remove(series); if (Content != null) { var row = (from r in Content.Rows where r.Name == series.Name select r).Single(); FillSeriesWithRowValues(series, row); this.chart.Legends[series.Legend].ForeColor = Color.Black; RecalculateAxesScale(chart.ChartAreas[0]); UpdateYCursorInterval(); } } } private void FillSeriesWithRowValues(Series series, IndexedDataRow row) { for (int i = 0; i < row.Values.Count; i++) { var value = row.Values[i]; var point = new DataPoint(); point.SetValueXY(value.Item1, value.Item2); if (i == row.Values.Count - 1) { point.Label = series.Name; point.MarkerStyle = MarkerStyle.Cross; point.MarkerSize = 15; point.MarkerBorderWidth = 1; } series.Points.Add(point); } } #region Helpers protected void RemoveCustomPropertyIfExists(Series series, string property) { if (series.IsCustomPropertySet(property)) series.DeleteCustomProperty(property); } private ChartDashStyle ConvertLineStyle(DataRowVisualProperties.DataRowLineStyle dataRowLineStyle) { switch (dataRowLineStyle) { case DataRowVisualProperties.DataRowLineStyle.Dash: return ChartDashStyle.Dash; case DataRowVisualProperties.DataRowLineStyle.DashDot: return ChartDashStyle.DashDot; case DataRowVisualProperties.DataRowLineStyle.DashDotDot: return ChartDashStyle.DashDotDot; case DataRowVisualProperties.DataRowLineStyle.Dot: return ChartDashStyle.Dot; case DataRowVisualProperties.DataRowLineStyle.NotSet: return ChartDashStyle.NotSet; case DataRowVisualProperties.DataRowLineStyle.Solid: return ChartDashStyle.Solid; default: return ChartDashStyle.NotSet; } } /// /// Determines whether a double value can be displayed (converted to Decimal and not an NaN). /// /// The number to check. /// true if the value can be safely shwon in the chart, /// false otherwise. protected static bool IsInvalidValue(double x) { return double.IsNaN(x) || x < (double)decimal.MinValue || x > (double)decimal.MaxValue; } #endregion } }