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

Line Chart changing colors unexpectedly

2 Answers 86 Views

Chart (Obsolete)

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

Derek asked on 01 Dec 2011, 12:38 AM

FirstLoad.png

AfterReload.png

We have a line chart that uses a stored procedure for data. There is a combo box that allows the user to select a different category, and to view the chart for that category. When the chart first loads, it has the expected line colors for the selected theme. When the combo box value is changed the chart reloads properly, but the line colors change. Here's the definition for the chart.

<telerik:RadChart ID="RadChartCategory" runat="server" DataSourceID="dsChartData" Width="950" Height="650" Skin="Vista">

<PlotArea>

<YAxis>

<Appearance CustomFormat="#,#">

</Appearance>

</YAxis>

<XAxis DataLabelsColumn="StringDate" LabelStep="4">

</XAxis>

</PlotArea>

<Series>

<telerik:ChartSeries DataYColumn="Scenario1" DefaultLabelValue="" Name="Scenario 1"

Type="Line">

</telerik:ChartSeries>

<telerik:ChartSeries DataYColumn="Scenario2" DefaultLabelValue="" Name="Scenario 2"

Type="Line">

</telerik:ChartSeries>

<telerik:ChartSeries DataYColumn="Scenario3" DefaultLabelValue="" Name="Scenario 3"

Type="Line">

</telerik:ChartSeries>

<telerik:ChartSeries DataYColumn="Theoretical" DefaultLabelValue="" Name="Theoretical Capacity"

Type="Line">

</telerik:ChartSeries>

<telerik:ChartSeries DataYColumn="NetEffective" DefaultLabelValue="" Name="Net Effective Capacity"

Type="Line">

</telerik:ChartSeries>

</Series>

<ChartTitle>

<TextBlock Text="Labour Demand">

</TextBlock>

</ChartTitle>

</telerik:RadChart>

The only other code affecting the chart is to update the chart title when the selected value changes.

Protected Sub RadComboBoxCategory_SelectedIndexChanged(sender As Object, e As Telerik.Web.UI.RadComboBoxSelectedIndexChangedEventArgs) Handles RadComboBoxCategory.SelectedIndexChanged

RadChartCategory.ChartTitle.TextBlock.Text = "Labour Demand - " & RadComboBoxCategory.SelectedItem.Text

End Sub

I've attached a before and after image of how the chart appears. This seems to occur with any Skin. Subsequent reloads keep the same colors as the first reload.

Any ideas?

2 Answers, 1 is accepted

Accepted