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'-1' is not a valid value for property 'Height'.

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ChartView

This is a migrated thread and some comments may be shown as answers.

Darlene asked on 31 Jul 2012, 09:25 PM

Hello!!

So, I blew up your ChartView by having fun with animating heights. In my live application, I have two ChartViews on different rows of a Grid and the row heights are animated to show/collapse a chart. If the window size is small enough, I will get a "'-1' is not a valid value for property 'Height'." exception with this stack trace:

at System.Windows.DependencyObject.SetValueCommon(DependencyProperty dp, Object value, PropertyMetadata metadata, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType, Boolean isInternal)

at System.Windows.FrameworkElement.set_Height(Double value)

at Telerik.Windows.Controls.ChartView.PresenterBase.ArrangeUIElement(FrameworkElement presenter, RadRect layoutSlot, Boolean setSize) in c:\TB\102\WPF_Scrum\Release_WPF\Sources\Development\Controls\Chart\Visualization\Common\PresenterBase.cs:line 297

at Telerik.Windows.Controls.ChartView.CartesianChartGrid.UpdateYStripes() in c:\TB\102\WPF_Scrum\Release_WPF\Sources\Development\Controls\Chart\Visualization\CartesianChart\CartesianChartGrid.cs:line 479

at Telerik.Windows.Controls.ChartView.CartesianChartGrid.UpdateVisuals(ChartLayoutContext context) in c:\TB\102\WPF_Scrum\Release_WPF\Sources\Development\Controls\Chart\Visualization\CartesianChart\CartesianChartGrid.cs:line 421

at Telerik.Windows.Controls.ChartView.CartesianChartGrid.UpdateUICore(ChartLayoutContext context) in c:\TB\102\WPF_Scrum\Release_WPF\Sources\Development\Controls\Chart\Visualization\CartesianChart\CartesianChartGrid.cs:line 296

I have been able to reproduce this issue in its own project by forcefully setting the chart Height property to a small value and then adding a series (line/bar doesn't matter). This is done in a Command executed by pressing a button. Here is the relevant reproduction code:

View:

<Window x:Class="TinyChart.MainWindow"

xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation" Title="MainWindow" Height="350" Width="525">

<Grid>

<Grid.RowDefinitions>

<RowDefinition Height="*" />

</Grid.RowDefinitions>

<telerik:RadCartesianChart x:Name="chart" telerik:StyleManager.Theme="Metro">

<telerik:RadCartesianChart.TrackBallInfoStyle>

<Style TargetType="telerik:TrackBallInfoControl">

<Setter Property="HeaderTemplate">

<Setter.Value>

<DataTemplate>

<TextBlock Text="{Binding}" Foreground="Black" HorizontalAlignment="Center"/>

</DataTemplate>

</Setter.Value>

</Setter>

</Style>

</telerik:RadCartesianChart.TrackBallInfoStyle>

<telerik:RadCartesianChart.Behaviors>

<telerik:ChartTrackBallBehavior ShowIntersectionPoints="True" ShowTrackInfo="True" SnapMode="AllClosePoints" />

</telerik:RadCartesianChart.Behaviors>

<telerik:RadCartesianChart.HorizontalAxis>

<telerik:DateTimeCategoricalAxis LabelFormat="dd MMM yyyy" Title="Date Processed" DateTimeComponent="DayOfYear" LabelFitMode="Rotate" LabelInterval="3" LastLabelVisibility="Visible">

<telerik:DateTimeCategoricalAxis.LabelTemplate>

<DataTemplate>

<StackPanel Orientation="Horizontal">

<TextBlock Text="{Binding}" HorizontalAlignment="Center" />

</StackPanel>

</DataTemplate>

</telerik:DateTimeCategoricalAxis.LabelTemplate>

</telerik:DateTimeCategoricalAxis>

</telerik:RadCartesianChart.HorizontalAxis>

<telerik:RadCartesianChart.VerticalAxis>

<telerik:LinearAxis Title="# Documents Processed" />

</telerik:RadCartesianChart.VerticalAxis>

<telerik:RadCartesianChart.Grid>

<telerik:CartesianChartGrid MajorLinesVisibility="Y" StripLinesVisibility="Y" />

</telerik:RadCartesianChart.Grid>

</telerik:RadCartesianChart>

<Button Command="{Binding MyCommand}" Width="64" Height="64" VerticalAlignment="Top" HorizontalAlignment="Right" Content="..." />

</Grid>

</Window>

View Model:

public class MainWindowViewModel

{

public ObservableCollection<Item> Items { get; set; }

public ICommand MyCommand { get; set; }

public MainWindow View { get; set; }

public MainWindowViewModel()

{

MyCommand = new RelayCommand(OnMyCommand);

Items = new ObservableCollection<Item>();

Items.Add(new Item { Date = DateTime.Now, Number = 1 });

Items.Add(new Item { Date = DateTime.Now.AddDays(1), Number = 0 });

Items.Add(new Item { Date = DateTime.Now.AddDays(2), Number = 0 });

Items.Add(new Item { Date = DateTime.Now.AddDays(3), Number = 0 });

Items.Add(new Item { Date = DateTime.Now.AddDays(4), Number = 0 });

Items.Add(new Item { Date = DateTime.Now.AddDays(5), Number = 0 });

Items.Add(new Item { Date = DateTime.Now.AddDays(6), Number = 0 });

Items.Add(new Item { Date = DateTime.Now.AddDays(1), Number = 1 });

Items.Add(new Item { Date = DateTime.Now.AddDays(7), Number = 0 });

}

private void OnMyCommand()

{

View.chart.Height = 100;

View.chart.Series.Add(new BarSeries

{

//StrokeThickness = 4,

//Stroke = Brushes.Red,

ItemsSource = Items,

CategoryBinding = new PropertyNameDataPointBinding("Date"),

ValueBinding = new PropertyNameDataPointBinding("Number"),

ShowLabels = false

});

}

public class Item

{

public DateTime Date { get; set; }

public int Number { get; set; }

public override string ToString()

{

return Date.ToString() + " - " + Number.ToString();

}

I require this situation to work. Although it may seem silly to set height before adding a series, this should not cause a crash. If a workaround can't be found, I will require a hotfix. This occurs with the latest version Q2 2012 SP1 (also Q1 2012).

The series is added after user invokes a command, so I know what data to display. There can be multiple series in a chart also, hence the programmatic approach.

I am at a loss to figure out how to solve this problem as I can find nothing wrong with my code and it works fine when the screen size is sufficiently large enough.

Thank you very much!

2 Answers, 1 is accepted

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