Infralution Support

[morgenweck]

I'm upgrading from version 3 to version 4 and also changing from Framework 2.0 to 4.0. When I set a cell to IsRichTextFormat = True it throws an error saying:
Mixed mode assembly is built against version v2.0.50727 of the runtime and cannot be loaded in the 4.0 runtime without additional configuration information.

As soon as I put IsRichTextFormat to false I can load the Object into the tree without any FileLoadExceptions.

I can send screenshot if necessary.

Thanks

Additional information:

System.IO.FileLoadException occurred
Message=Mixed mode assembly is built against version 'v2.0.50727' of the runtime and cannot be loaded in the 4.0 runtime without additional configuration information.
Source=Infralution.Controls.VirtualTree
StackTrace:
at Infralution.Controls.VirtualTree.CellWidget.PaintRichText(Graphics graphics, Rectangle bounds)
at Infralution.Controls.VirtualTree.CellWidget.PaintText(Graphics graphics, Rectangle bounds, Style style, String text, Boolean printing)
at Infralution.Controls.VirtualTree.CellWidget.PaintForeground(Graphics graphics, Style style, Boolean printing)
at Infralution.Controls.VirtualTree.CellWidget.OnPaint(Graphics graphics)
at Infralution.Controls.Widget.OnPaint(Graphics graphics)
at Infralution.Controls.VirtualTree.RowWidget.OnPaint(Graphics graphics)
at Infralution.Controls.Widget.OnPaint(Graphics graphics)
at Infralution.Controls.VirtualTree.PanelWidget.OnPaint(Graphics graphics)
at Infralution.Controls.WidgetControl.PaintWidgets(Graphics graphics, Rectangle clipRectangle)
at Infralution.Controls.WidgetControl.OnPaint(PaintEventArgs e)
at Infralution.Controls.VirtualTree.VirtualTree.OnPaint(PaintEventArgs e)
at System.Windows.Forms.Control.PaintWithErrorHandling(PaintEventArgs e, Int16 layer)
at System.Windows.Forms.Control.WmPaint(Message& m)
at System.Windows.Forms.Control.WndProc(Message& m)
at Infralution.Controls.BorderedControl.WndProc(Message& m)
at Infralution.Controls.VirtualTree.VirtualTree.WndProc(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)
at System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(IntPtr dwComponentID, Int32 reason, Int32 pvLoopData)
at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)
at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)
at System.Windows.Forms.Application.Run(Form mainForm)
at Program.Main() in C:\Projects\AdminDatabase\DataCenterCore\Program.vb:line 20
InnerException:

[Infralution]

The problem is that in .NET 4 Microsoft decided not (by default) to keep backward compatibility for loading mixed mode assemblies compiled using C++ against .NET 2. Since the Infralution.RichText assembly is compiled against .NET 2 this issue arises if you use RichText with a .NET 4 application. There are three possible solutions:

1. Add a configuration file for your application with the following Startup attribute:

[Infralution]

Version 4.2.0 of Virtual Tree has been released and eliminates this issue. Rich Text rendering is now implemented in managed code (in Infralution.Controls.RichTextRenderer) eliminating the need for the Infralution.RichText mixed mode assembly.
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Infralution Support