private RadCartesianChartView createChart(){
//Create the Chart View
RadCartesianChartView chart = new RadCartesianChartView(this.Activity);
//Create the bar series and attach axes and value bindings.
BarSeries barSeries = new BarSeries();
barSeries.ValueBinding = new ValueBinding();
barSeries.CategoryBinding = new CategoryBinding();
LinearAxis verticalAxis = new LinearAxis();
//The values in the linear axis will not have values after the decimal point.
verticalAxis.LabelFormat = "%.0f";
CategoricalAxis horizontalAxis = new CategoricalAxis();
horizontalAxis.LabelFitMode = AxisLabelFitMode.MultiLine;
barSeries.VerticalAxis = verticalAxis;
barSeries.HorizontalAxis = horizontalAxis;
//Bind series to data
barSeries.Data = this.getData();
//Add series to chart
chart.Series.Add(barSeries);
ChartSelectionBehavior sb = new ChartSelectionBehavior();
sb.DataPointsSelectionMode = ChartSelectionMode.Single;
chart.Behaviors.Add(sb);
return chart;
}
private static void RemoveAssociation(INotifyCollectionChanged collection, ChartSelectionBehavior behavior)
{
List <ChartSelectionBehavior> behaviors = GetOrCreateSelectionBehaviors(collection);
behaviors.Remove(behavior);
if (behaviors.Count == 0)
{
CleanUp();
}
}
private static void SetItemsSelection(ChartSelectionBehavior behavior, IList items, bool shouldSelect)
{
foreach (var item in items)
{
var dataPoints = GetDataPointsForItem(item, behavior);
foreach (var dataPoint in dataPoints)
{
dataPoint.IsSelected = shouldSelect;
}
}
}
private static void SyncSelection(ChartSelectionBehavior behavior, IList oldItems, IList newItems)
{
if (oldItems != null)
{
SetItemsSelection(behavior, oldItems, false);
}
if (newItems != null)
{
SetItemsSelection(behavior, newItems, true);
}
}
private static IEnumerable <DataPoint> GetDataPointsForItem(object item, ChartSelectionBehavior behavior)
{
IEnumerable seriesCollection = GetSeries(behavior.Chart);
foreach (ChartSeries series in seriesCollection)
{
var dataPoints = GetDataPoints(series);
foreach (DataPoint dataPoint in dataPoints)
{
if (dataPoint.DataItem == item)
{
yield return(dataPoint);
}
}
}
}
private RadCartesianChartView createChart()
{
//Create the Chart View
RadCartesianChartView chart = new RadCartesianChartView(this.Activity);
//Create the bar series and attach axes and value bindings.
BarSeries barSeries = new BarSeries();
barSeries.ValueBinding = new ValueBinding();
barSeries.CategoryBinding = new CategoryBinding();
LinearAxis verticalAxis = new LinearAxis();
//The values in the linear axis will not have values after the decimal point.
verticalAxis.LabelFormat = "%.0f";
CategoricalAxis horizontalAxis = new CategoricalAxis();
horizontalAxis.LabelFitMode = AxisLabelFitMode.MultiLine;
barSeries.VerticalAxis = verticalAxis;
barSeries.HorizontalAxis = horizontalAxis;
//Bind series to data
barSeries.Data = this.getData();
//Add series to chart
chart.Series.Add(barSeries);
ChartSelectionBehavior sb = new ChartSelectionBehavior();
sb.DataPointsSelectionMode = ChartSelectionMode.Single;
chart.Behaviors.Add(sb);
return(chart);
}
private static void AddAssociation(INotifyCollectionChanged collection, ChartSelectionBehavior behavior)
{
List <ChartSelectionBehavior> behaviors = GetOrCreateSelectionBehaviors(collection);
behaviors.Add(behavior);
}
public SelectionSeriesPage()
{
InitializeComponent();
var model = new MainViewModel();
model.Data1 = MainViewModel.GetCategoricalData();
model.Data2 = MainViewModel.GetCategoricalData();
var grid = new CartesianChartGrid();
var chart = new Telerik.XamarinForms.Chart.RadCartesianChart
{
VerticalAxis = new Telerik.XamarinForms.Chart.NumericalAxis(),
HorizontalAxis = new Telerik.XamarinForms.Chart.CategoricalAxis()
{
LabelFitMode = Telerik.XamarinForms.Chart.AxisLabelFitMode.MultiLine
},
Grid = grid,
HeightRequest = 400
};
grid.MajorLinesVisibility = GridLineVisibility.Y;
grid.MajorYLineDashArray = Device.OnPlatform(null, new double[] { 4, 2 }, new double[] { 4, 2 });
grid.StripLinesVisibility = GridLineVisibility.Y;
grid.YStripeColor = Color.Transparent;
grid.YStripeAlternativeColor = Color.FromHex("1FA9A9A9");
grid.MajorLineColor = Color.FromHex("D3D3D3");
grid.MajorLineThickness = Device.OnPlatform(0.5, 2, 2);
var series = new Telerik.XamarinForms.Chart.BarSeries();
series.StackGroupKey = 1;
series.CombineMode = Telerik.XamarinForms.Chart.ChartSeriesCombineMode.Stack;
series.ItemsSource = model.Data1;
series.ValueBinding = new Telerik.XamarinForms.Chart.PropertyNameDataPointBinding
{
PropertyName = "Value"
};
series.CategoryBinding = new Telerik.XamarinForms.Chart.PropertyNameDataPointBinding
{
PropertyName = "Category"
};
series.AllowSelect = true;
chart.Series.Add(series);
var series2 = new Telerik.XamarinForms.Chart.BarSeries();
series2.StackGroupKey = 1;
series2.CombineMode = Telerik.XamarinForms.Chart.ChartSeriesCombineMode.Stack;
series2.ItemsSource = model.Data2;
series2.ValueBinding = new Telerik.XamarinForms.Chart.PropertyNameDataPointBinding
{
PropertyName = "Value"
};
series2.CategoryBinding = new Telerik.XamarinForms.Chart.PropertyNameDataPointBinding
{
PropertyName = "Category"
};
series2.AllowSelect = true;
chart.PaletteName = PaletteNames.Light;
chart.SelectionPaletteName = PaletteNames.LightSelected;
chart.Series.Add(series2);
beh = new Telerik.XamarinForms.Chart.ChartSelectionBehavior
{
DataPointSelectionMode = Telerik.XamarinForms.Chart.ChartSelectionMode.Single,
SeriesSelectionMode = ChartSelectionMode.None
};
chart.Behaviors.Add(beh);
this.Content = chart;
}
private static void RemoveAssociation(INotifyCollectionChanged collection, ChartSelectionBehavior behavior)
{
List<ChartSelectionBehavior> behaviors = GetOrCreateSelectionBehaviors(collection);
behaviors.Remove(behavior);
if (behaviors.Count == 0)
{
CleanUp();
}
}
private static void AddAssociation(INotifyCollectionChanged collection, ChartSelectionBehavior behavior)
{
List<ChartSelectionBehavior> behaviors = GetOrCreateSelectionBehaviors(collection);
behaviors.Add(behavior);
}
private static IEnumerable<DataPoint> GetDataPointsForItem(object item, ChartSelectionBehavior behavior)
{
IEnumerable seriesCollection = GetSeries(behavior.Chart);
foreach (ChartSeries series in seriesCollection)
{
var dataPoints = GetDataPoints(series);
foreach (DataPoint dataPoint in dataPoints)
{
if (dataPoint.DataItem == item)
{
yield return dataPoint;
}
}
}
}
private static void SetItemsSelection(ChartSelectionBehavior behavior, IList items, bool shouldSelect)
{
foreach (var item in items)
{
var dataPoints = GetDataPointsForItem(item, behavior);
foreach (var dataPoint in dataPoints)
{
dataPoint.IsSelected = shouldSelect;
}
}
}
private static void SyncSelection(ChartSelectionBehavior behavior, IList oldItems, IList newItems)
{
if (oldItems != null)
{
SetItemsSelection(behavior, oldItems, false);
}
if (newItems != null)
{
SetItemsSelection(behavior, newItems, true);
}
}
