private void CreateDataPointGroupBindings(DataPointGroup dataPointGroup)
{
var groupBinding = new Binding();
groupBinding.Source = this;
groupBinding.Mode = BindingMode.TwoWay;
groupBinding.Path = new PropertyPath("SelectedItem");
BindingOperations.SetBinding(dataPointGroup, DataPointGroup.SelectedItemProperty, groupBinding);
}
private void CreateDataPointBindings(DataPoint datapoint, DataPointGroup dataPointGroup)
{
//Sende an Datapoints the maximalvalue des Charts mit (wichtig in clustered Column chart)
var maxDataPointValueBinding = new Binding();
maxDataPointValueBinding.Source = this;
maxDataPointValueBinding.Mode = BindingMode.OneWay;
maxDataPointValueBinding.Path = new PropertyPath("MaxDataPointValue");
BindingOperations.SetBinding(datapoint, DataPoint.MaxDataPointValueProperty, maxDataPointValueBinding);
//Sende den Datapoints the höchste Summe einer DataPointGroup mit (wichtig für stacked chart)
var maxDataPointGroupSumBinding = new Binding();
maxDataPointGroupSumBinding.Source = this;
maxDataPointGroupSumBinding.Mode = BindingMode.OneWay;
maxDataPointGroupSumBinding.Path = new PropertyPath("MaxDataPointGroupSum");
BindingOperations.SetBinding(datapoint, DataPoint.MaxDataPointGroupSumProperty, maxDataPointGroupSumBinding);
//Sende den Datapoint die Summe seiner Datagroup
var sumBinding = new Binding();
sumBinding.Source = dataPointGroup;
sumBinding.Mode = BindingMode.OneWay;
sumBinding.Path = new PropertyPath("SumOfDataPointGroup");
BindingOperations.SetBinding(datapoint, DataPoint.SumOfDataPointGroupProperty, sumBinding);
var selectionBinding = new Binding();
selectionBinding.Source = dataPointGroup;
selectionBinding.Mode = BindingMode.TwoWay;
selectionBinding.Path = new PropertyPath("SelectedItem");
BindingOperations.SetBinding(datapoint, DataPoint.SelectedItemProperty, selectionBinding);
var selectedBrushBinding = new Binding();
selectedBrushBinding.Source = this;
selectedBrushBinding.Mode = BindingMode.OneWay;
selectedBrushBinding.Path = new PropertyPath("SelectedBrush");
BindingOperations.SetBinding(datapoint, DataPoint.SelectedBrushProperty, selectedBrushBinding);
//tooltip format (may change sometimes)
var tooltipFormatBinding = new Binding();
tooltipFormatBinding.Source = this;
tooltipFormatBinding.Mode = BindingMode.OneWay;
tooltipFormatBinding.Path = new PropertyPath("ToolTipFormat");
BindingOperations.SetBinding(datapoint, DataPoint.ToolTipFormatProperty, tooltipFormatBinding);
}
private void UpdateGroupedSeries()
{
// data validation
Exceptions.Clear();
// ensure that caption of series is not null, otherwise all other series would be ignored (data from the same series are collection to the same datapointgroup)
if (Series.Any(series => string.IsNullOrEmpty(series.SeriesTitle)))
{
Exceptions.Add("Series with empty caption cannot be used.");
}
//ensure that each series has a different name
if (Series.GroupBy(series => series.SeriesTitle).Any(group => group.Count() > 1))
{
Exceptions.Add("Series with duplicate name cannot be used.");
}
if (!HasExceptions)
{
List <DataPointGroup> result = new List <DataPointGroup>();
try
{
if (GetIsRowColumnSwitched())
{
///sammle erst alle Gruppen zusammen
foreach (ChartSeries initialSeries in Series)
{
int itemIndex = 0;
foreach (var seriesItem in initialSeries.Items)
{
string seriesItemCaption = GetPropertyValue(seriesItem, initialSeries.DisplayMember); //Security
DataPointGroup dataPointGroup = result.Where(group => group.Caption == seriesItemCaption).FirstOrDefault();
if (dataPointGroup == null)
{
dataPointGroup = new DataPointGroup(this, seriesItemCaption, Series.Count > 1 ? true : false);
dataPointGroup.PropertyChanged += dataPointGroup_PropertyChanged;
result.Add(dataPointGroup);
CreateDataPointGroupBindings(dataPointGroup);
int seriesIndex = 0;
foreach (ChartSeries allSeries in Series)
{
DataPoint datapoint = new DataPoint(this);
datapoint.SeriesCaption = allSeries.SeriesTitle;
datapoint.ValueMember = allSeries.ValueMember;
datapoint.DisplayMember = allSeries.DisplayMember;
datapoint.ItemBrush = Series.Count == 1 ? GetItemBrush(itemIndex) : GetItemBrush(seriesIndex); //if only one series, use different color for each datapoint, if multiple series we use different color for each series
datapoint.PropertyChanged += groupdItem_PropertyChanged;
CreateDataPointBindings(datapoint, dataPointGroup);
dataPointGroup.DataPoints.Add(datapoint);
seriesIndex++;
}
itemIndex++;
}
}
}
///gehe alle Series durch (Security, Naming etc.)
foreach (ChartSeries series in Series)
{
foreach (var seriesItem in series.Items)
{
string seriesItemCaption = GetPropertyValue(seriesItem, series.DisplayMember); //Security
//finde die gruppe mit dem Namen
DataPointGroup addToGroup = result.Where(group => group.Caption == seriesItemCaption).FirstOrDefault();
//finde in der Gruppe
DataPoint groupdItem = addToGroup.DataPoints.Where(item => item.SeriesCaption == series.SeriesTitle).FirstOrDefault();
groupdItem.ReferencedObject = seriesItem;
}
}
}
else
{
foreach (ChartSeries initialSeries in Series)
{
//erstelle für jede Series einen DataPointGroup, darin wird dann für jedes Item in jeder Serie ein DataPoint angelegt
DataPointGroup dataPointGroup = new DataPointGroup(this, initialSeries.SeriesTitle, Series.Count > 1 ? true : false);
dataPointGroup.PropertyChanged += dataPointGroup_PropertyChanged;
result.Add(dataPointGroup);
CreateDataPointGroupBindings(dataPointGroup);
//stelle nun sicher, dass alle DataPointGruppen die gleichen Datapoints hat
foreach (ChartSeries allSeries in Series)
{
int seriesIndex = 0;
foreach (var seriesItem in allSeries.Items)
{
string seriesItemCaption = GetPropertyValue(seriesItem, initialSeries.DisplayMember); //Security
DataPoint existingDataPoint = dataPointGroup.DataPoints.Where(datapoint => datapoint.SeriesCaption == seriesItemCaption).FirstOrDefault();
if (existingDataPoint == null)
{
DataPoint datapoint = new DataPoint(this);
datapoint.SeriesCaption = seriesItemCaption;
datapoint.ValueMember = allSeries.ValueMember;
datapoint.DisplayMember = allSeries.DisplayMember;
datapoint.ItemBrush = GetItemBrush(seriesIndex);
datapoint.PropertyChanged += groupdItem_PropertyChanged;
CreateDataPointBindings(datapoint, dataPointGroup);
dataPointGroup.DataPoints.Add(datapoint);
}
seriesIndex++;
}
}
}
///gehe alle Series durch (Security, Naming etc.)
foreach (ChartSeries series in Series)
{
foreach (var seriesItem in series.Items)
{
//finde die gruppe mit dem Namen
DataPointGroup addToGroup = result.Where(group => group.Caption == series.SeriesTitle).FirstOrDefault();
//finde in der Gruppe das richtige Element
string seriesItemCaption = GetPropertyValue(seriesItem, series.DisplayMember); //Security
DataPoint groupdItem = addToGroup.DataPoints.Where(item => item.SeriesCaption == seriesItemCaption).FirstOrDefault();
groupdItem.ReferencedObject = seriesItem;
}
}
}
}
catch
{
}
//finished, copy all to the array
groupedSeries.Clear();
foreach (var item in result)
{
groupedSeries.Add(item);
}
UpdateColorsOfDataPoints();
chartLegendItems.Clear();
DataPointGroup firstgroup = groupedSeries.FirstOrDefault();
if (firstgroup != null)
{
foreach (DataPoint dataPoint in firstgroup.DataPoints)
{
ChartLegendItemViewModel legendItem = new ChartLegendItemViewModel();
var captionBinding = new Binding();
captionBinding.Source = dataPoint;
captionBinding.Mode = BindingMode.OneWay;
captionBinding.Path = new PropertyPath("SeriesCaption");
BindingOperations.SetBinding(legendItem, ChartLegendItemViewModel.CaptionProperty, captionBinding);
var brushBinding = new Binding();
brushBinding.Source = dataPoint;
brushBinding.Mode = BindingMode.OneWay;
brushBinding.Path = new PropertyPath("ItemBrush");
BindingOperations.SetBinding(legendItem, ChartLegendItemViewModel.ItemBrushProperty, brushBinding);
chartLegendItems.Add(legendItem);
}
}
RecalcSumOfDataPointGroup();
}
}