Struggling with OxyPlot - oxyplot

Question

Been learning C#, and WPF for about 5 or 6 weeks now, and I'm working as an Intern on a project . Not doing to bad, but right now I'm stuck and I cant figure out why. Trying to migrate a WinForms application over to WPF. The old application used Z-graphs, written the code for OxyPlot, but my graphs arent showing and I have no idea why.
XAML
<Border BorderBrush="{StaticResource chromeBrush}" BorderThickness="5 5 5 5" Margin="2 3 0 2" Grid.Column="3" Grid.ColumnSpan="36" Grid.Row="3" Grid.RowSpan="33" Background="Black">
<DockPanel>
<DockPanel.DataContext>
<local:Main/>
</DockPanel.DataContext>
<oxy:Plot Model="{Binding openPlot}" />
</DockPanel>
</Border>
And the C#
public partial class Main : Window
{
public Dictionary<string, DoorData> doorList;
public Main()
{
//this.InitializeComponent();
doorList = new Dictionary<string, DoorData>();
}
public DoorData doorGraphs = new DoorData();
private void unitList_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
string selectedUnit = unitList.SelectedItem.ToString();
doorGraphs = doorList[selectedUnit];
this.Title = selectedUnit + " Open";
PlotModel openPlot = new PlotModel();
List<SmartDDUOperation> values = doorGraphs.Data;
doorGraphs.FilterToType(SmartOperationType.Open);
IEnumerable<SmartDDUOperation> drawOrder = values.OrderByDescending(x => x.TimeStamp);
List<LineSeries> linePointsArray = new List<LineSeries>();
foreach (SmartDDUOperation doorOp in drawOrder)
{
List<Tuple<double, double>> points = new List<Tuple<double, double>>();
points = doorOp.GetTimePoints2();
LineSeries linePoints = new LineSeries();
foreach (Tuple<double, double> p in points)
{
DataPoint XYPoint = new DataPoint(p.Item1, p.Item2);
linePoints.Points.Add(XYPoint);
}
linePointsArray.Add(linePoints);
}
LinearAxis Xaxis = new LinearAxis();
Xaxis.Maximum = 6;
Xaxis.Minimum = 0;
Xaxis.Position = AxisPosition.Bottom;
Xaxis.Title = "Time (s)";
openPlot.Axes.Add(Xaxis);
LinearAxis Yaxis = new LinearAxis();
Yaxis.Maximum = 12;
Yaxis.Minimum = 1;
Yaxis.Position = AxisPosition.Left;
Yaxis.Title = "Door Position";
openPlot.Axes.Add(Yaxis);
// Adds each series to the graph
foreach (var series in linePointsArray)
{
openPlot.Series.Add(series);
}
}
Using the following namespaces...
enter using OxyPlot;
using OxyPlot.Annotations;
using OxyPlot.Series;
using OxyPlot.Axes;
Like I said, only a beginner, so there is probably some obvious mistakes in there. Feel free to point them out and educate me.
Thanks

Answer 1

You are declaring your PlotModel inside of a method... It is going to be out of scope when you leave the function. So you are binding to nothing. Your PlotModel needs to be publicly accessible and declared in your ViewModel/Main.

Answer 2

I am new to OxyPlot myself. From what I know, you may need to include a using
using OxyPlot.WPF;
declaration.
Also a call to
openPlot InvalidatePlot(true);
may be needed to trigger a redraw.
You might need to add a
openPlot.Series.Clear();
Before you add your series, if there is any way that you might be adding those series again.