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POHow to pragmatically create BubbleSeries in SL4
 

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  1. POHow to pragmatically create BubbleSeries in SL4
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    <p>I am creating a <em>BubbleSeries</em> in a function within <em>CS</em> file. As a data source I use a <code>List&lt;Dictionary&lt;string,string&gt;&gt; GridData</code>, Unfortunately my implementation throws an exception: <code>No suitable axis is available for plotting the dependent value.</code> I am SL4 newbie and I can not figure out what could be a reson. Here is how I create and add <em>BubbleSeries</em> to <em>Chart</em>:</p> <pre><code> List&lt;Dictionary&lt;string,string&gt;&gt; GridData = getGridData(); var s1 = new BubbleSeries(); s1.DependentValueBinding = new Binding("[" + &lt;key to numeric value in DataGrid&gt; + "]"); s1.SizeValueBinding = new Binding("[" + &lt;key to numeric value in DataGrid&gt; + "]"); s1.IndependentValueBinding = new Binding("[" + &lt;key to string value in DataGrid&gt; + "]"); s1.ItemsSource = GridData; s1.Title = "Chart"; // add BubbleSeries to Chart ChartVis.Series.Add(s1); </code></pre> <p>Here is a full description of an error I got in runtime:</p> <pre><code>Webpage error details User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; WOW64; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; InfoPath.2; .NET4.0C; .NET4.0E) Timestamp: Mon, 20 Sep 2010 07:09:33 UTC Message: Unhandled Error in Silverlight Application Code: 4004 Category: ManagedRuntimeError Message: System.InvalidOperationException: No suitable axis is available for plotting the dependent value. at System.Windows.Controls.DataVisualization.Charting.BubbleSeries.&lt;&gt;c__DisplayClass6.&lt;GetAxes&gt;b__3() at System.Windows.Controls.DataVisualization.Charting.DataPointSeriesWithAxes.GetAxes(DataPoint firstDataPoint, Func`2 independentAxisPredicate, Func`1 independentAxisFactory, Func`2 dependentAxisPredicate, Func`1 dependentAxisFactory) at System.Windows.Controls.DataVisualization.Charting.BubbleSeries.GetAxes(DataPoint firstDataPoint) at System.Windows.Controls.DataVisualization.Charting.DataPointSeriesWithAxes.GetAxes() at System.Windows.Controls.DataVisualization.Charting.DataPointSeriesWithAxes.OnDataPointsChanged(IList`1 newDataPoints, IList`1 oldDataPoints) at System.Windows.Controls.DataVisualization.Charting.DataPointSingleSeriesWithAxes.OnDataPointsChanged(IList`1 newDataPoints, IList`1 oldDataPoints) at System.Windows.Controls.DataVisualization.Charting.DataPointSeries.LoadDataPoints(IEnumerable newItems, IEnumerable oldItems) at System.Windows.Controls.DataVisualization.Charting.DataPointSeries.Refresh() at System.Windows.Controls.DataVisualization.Charting.DataPointSeries.OnSizeChanged(Object sender, SizeChangedEventArgs e) at System.Windows.FrameworkElement.OnSizeChanged(Object sender, SizeChangedEventArgs e) at MS.Internal.JoltHelper.RaiseEvent(IntPtr target, UInt32 eventId, IntPtr coreEventArgs, UInt32 eventArgsTypeIndex) Line: 56 Char: 13 Code: 0 URI: http://localhost:49402/MyTestPage.aspx </code></pre> <p>My chart implementation is:</p> <pre><code> &lt;toolkit:Chart Title="Visaulization" Grid.Column="0" x:Name="ChartVis"&gt; &lt;toolkit:Chart.Series&gt; &lt;/toolkit:Chart.Series&gt; &lt;/toolkit:Chart&gt; </code></pre> <p><strong>UPDATE:</strong> After changing the declaration of my dictionary to <code>Dictionary&lt;string,object&gt;</code>, and putting numeric values as doubles. I got this error:</p> <pre><code>Message: Unhandled Error in Silverlight Application Code: 4004 Category: ManagedRuntimeError Message: System.InvalidOperationException: Assigned dependent axis cannot be used. This may be due to an unset Orientation property for the axis or a type mismatch between the values being plotted and those supported by the axis. at System.Windows.Controls.DataVisualization.Charting.DataPointSeriesWithAxes.GetAxes(DataPoint firstDataPoint, Func`2 independentAxisPredicate, Func`1 independentAxisFactory, Func`2 dependentAxisPredicate, Func`1 dependentAxisFactory) at System.Windows.Controls.DataVisualization.Charting.BubbleSeries.GetAxes(DataPoint firstDataPoint) at System.Windows.Controls.DataVisualization.Charting.DataPointSeriesWithAxes.GetAxes() at System.Windows.Controls.DataVisualization.Charting.DataPointSeriesWithAxes.OnDataPointsChanged(IList`1 newDataPoints, IList`1 oldDataPoints) at System.Windows.Controls.DataVisualization.Charting.DataPointSingleSeriesWithAxes.OnDataPointsChanged(IList`1 newDataPoints, IList`1 oldDataPoints) at System.Windows.Controls.DataVisualization.Charting.DataPointSeries.LoadDataPoints(IEnumerable newItems, IEnumerable oldItems) at System.Windows.Controls.DataVisualization.Charting.DataPointSeries.Refresh() at System.Windows.Controls.DataVisualization.Charting.DataPointSeries.OnSizeChanged(Object sender, SizeChangedEventArgs e) at System.Windows.FrameworkElement.OnSizeChanged(Object sender, SizeChangedEventArgs e) at MS.Internal.JoltHelper.RaiseEvent(IntPtr target, UInt32 eventId, IntPtr coreEventArgs, UInt32 eventArgsTypeIndex) </code></pre>
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