Steema Central

In the WPF demo app, select the ColorGrid series, then pan with the right mouse button or zoom in and notice that the colors shift around and are not plotted correctly.

Also, I noticed that there is a ShowEditor method in the WPF control, but it does nothing. I guess the WPF control is still considered an alpha or beta build? Any idea of a timeframe for a fully featured and robust build?

narcis wrote:Hi Walt,
I could reproduce the issue here and added it (TW16014129) to the defect list to be fixed.

narcis wrote:Hi Walt,
We consider current WPF release being a production version already. ShowEditor is inherited from TChart class but the editor is not supported in WPF applications. I don't think there are plans for it either.

<Window x:Class="WpfApplication1.Window1"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:teechart="clr-namespace:Steema.TeeChart;assembly=TeeChart"
    Title="Test of WinForms TeeChart Integration Into WPF App" Height="600" Width="400">
    <StackPanel>
      <TabControl>
        <TabItem Header="TeeChart in Tab">
          <WindowsFormsHost><teechart:TChart/></WindowsFormsHost>
        </TabItem>
      </TabControl>
      <WindowsFormsHost><teechart:TChart/></WindowsFormsHost>
    </StackPanel>
</Window>

Would it be possible for you to make the WinForms editor work for the WPF control? I realize many types are different, but maybe this would be easier for you than writing an all-new WPF implementation. I would consider this acceptable as long as it is robust. The editor is usually used as a modal dialog, so there are no airspace issues to deal with.

However, there is another issue with WPF integration. Please create a WPF application in VS2008, reference the regular WinForms TeeChart.dll, and try the following code:

Code:
<Window x:Class="WpfApplication1.Window1"
xmlns="http://schemas.microsoft.com/winfx/2006 ... esentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:teechart="clr-namespace:Steema.TeeChart;assembly=TeeChart"
Title="Test of WinForms TeeChart Integration Into WPF App" Height="600" Width="400">
<StackPanel>
<TabControl>
<TabItem Header="TeeChart in Tab">
<WindowsFormsHost><teechart:TChart/></WindowsFormsHost>
</TabItem>
</TabControl>
<WindowsFormsHost><teechart:TChart/></WindowsFormsHost>
</StackPanel>
</Window>

Notice that the background for the first chart does not show everywhere that it should (there is a solid white background behind the chart title). For the second chart, there is no problem. (This is especially ugly if using a dark theme.)

The only difference is that the first chart is within a tab control. This problem also occurs when putting the chart in other containers such as those in the AvalonDock library. Other parts of the chart render ok, so it seems to be a bug in TeeChart.dll

narcis wrote:I haven't been able to reproduce the issue here using build 3.5.3425.20243/4/5 from 19th May. Could you please confirm this is the build you are using? Is there any additional step I should perform to reproduce the problem?

Thanks in advance.

<Window x:Class="WpfApplication1.Window1"
  xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
  xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
  xmlns:teechart="clr-namespace:Steema.TeeChart;assembly=TeeChart"
  Title="Test of WinForms TeeChart Integration Into WPF App" Height="600" Width="400">
  <StackPanel>
    <TabControl>
      <TabItem Header="TeeChart in Tab">
        <WindowsFormsHost><teechart:TChart x:Name="Chart1"/></WindowsFormsHost>
      </TabItem>
    </TabControl>
    <WindowsFormsHost><teechart:TChart x:Name="Chart2"/></WindowsFormsHost>
  </StackPanel>
</Window>

  public partial class Window1 : Window
  {
    public Window1()
    {
      InitializeComponent();
      Chart1.Panel.Gradient.StartColor = System.Drawing.Color.Gray;
      Chart1.Panel.Gradient.EndColor   = System.Drawing.Color.Silver;
      Chart2.Panel.Gradient.StartColor = System.Drawing.Color.Gray;
      Chart2.Panel.Gradient.EndColor   = System.Drawing.Color.Silver;
    }
  }