With .Net Framework 1.1 I successfully used ComponeneOne WebGrid control. I am now attempting a move to DNN 4.0.3.

When I attempt to load a module containing the C1 webgrid I get an exception:

"Attempted to access a field that is not accessible by the caller"

It fails in Skin.VB at line 466:

objPortalModuleBase = CType(Me.LoadControl("~/" & objModule.ControlSrc), PortalModuleBase)

It is enough to just place the C1WebGrid on the page to cause the error at run time. It just cannot load a module containing this control.  A standard out of the box VS2005 grid causes no trouble.

Has anyone else tried using C1 controls?

Declan

DotNetNuke.Services.Exceptions.ModuleLoadException: Attempted to access a field that is not accessible by the caller. --->
System.Web.HttpParseException: Attempted to access a field that is not accessible by the caller. ---> System.FieldAccessException: Attempted to access a field that is not accessible by the caller. at System.Reflection.RtFieldInfo.PerformVisibilityCheckOnField(IntPtr field, Object target, IntPtr declaringType, FieldAttributes attr, UInt32 invocationFlags) at System.Reflection.RtFieldInfo.InternalGetValue(Object obj, Boolean doVisibilityCheck, Boolean doCheckConsistency) at System.Reflection.RtFieldInfo.GetValue(Object obj) at System.Attribute.GetHashCode() at C1.Util.DLL2XSD.IntellisenseAttribute.b() at System.ComponentModel.ReflectTypeDescriptionProvider.ReflectedTypeData.GetAttributes() at System.ComponentModel.TypeDescriptor.TypeDescriptionNode.
DefaultTypeDescriptor.System.ComponentModel.ICustomTypeDescriptor.GetAttributes() at System.ComponentModel.TypeDescriptor.GetAttributes(Type componentType) at System.Web.Compilation.BaseTemplateCodeDomTreeGenerator.BuildBuildMethod(ControlBuilder builder, Boolean fTemplate, Boolean fInTemplate, Boolean topLevelControlInTemplate, PropertyEntry pse, Boolean fControlSkin) at System.Web.Compilation.BaseTemplateCodeDomTreeGenerator.BuildSourceDataTreeFromBuilder(ControlBuilder builder, Boolean fInTemplate, Boolean topLevelControlInTemplate, PropertyEntry pse) at System.Web.Compilation.BaseTemplateCodeDomTreeGenerator.BuildSourceDataTreeFromBuilder(ControlBuilder builder, Boolean fInTemplate, Boolean topLevelControlInTemplate, PropertyEntry pse) at System.Web.Compilation.TemplateControlCodeDomTreeGenerator.BuildMiscClassMembers() at System.Web.Compilation.BaseCodeDomTreeGenerator.BuildSourceDataTree() at System.Web.Compilation.BaseTemplateBuildProvider.GenerateCode(AssemblyBuilder assemblyBuilder) at System.Web.Compilation.AssemblyBuilder.AddBuildProvider(BuildProvider buildProvider) --- End of inner exception stack trace --- at System.Web.Compilation.AssemblyBuilder.AddBuildProvider(BuildProvider buildProvider) at System.Web.Compilation.BuildProvidersCompiler.ProcessBuildProviders() at System.Web.Compilation.BuildProvidersCompiler.PerformBuild() at System.Web.Compilation.BuildManager.CompileWebFile(VirtualPath virtualPath) at System.Web.Compilation.BuildManager.GetVPathBuildResultInternal(VirtualPath virtualPath, Boolean noBuild, Boolean allowCrossApp, Boolean allowBuildInPrecompile) at System.Web.Compilation.BuildManager.GetVPathBuildResultWithNoAssert(HttpContext context, VirtualPath virtualPath, Boolean noBuild, Boolean allowCrossApp, Boolean allowBuildInPrecompile) at System.Web.Compilation.BuildManager.GetVPathBuildResultWithAssert(HttpContext context, VirtualPath virtualPath, Boolean noBuild, Boolean allowCrossApp, Boolean allowBuildInPrecompile) at System.Web.UI.TemplateControl.LoadControl(VirtualPath virtualPath) at System.Web.UI.TemplateControl.LoadControl(String virtualPath) at DotNetNuke.UI.Skins.Skin.InjectModule(Control objPane, ModuleInfo objModule, PortalSettings PortalSettings) in C:\Inetpub\wwwroot\BradyCo\Library\Components\Skins\Skin.vb:line 466 --- End of inner exception stack trace ---

On attempting to use C1WebGrid without placing the contrl on the ascx at design time I have tried creating the control at run time.  When I do this I get an exception:

A critical error has occurred.
That assembly does not allow partially trusted callers.

InnerException: That assembly does not allow partially trusted callers.
Message: DotNetNuke.Services.Exceptions.PageLoadException: That assembly does not allow partially trusted callers. ---> System.Security.SecurityException: That assembly does not allow partially trusted callers. at System.Security.CodeAccessSecurityEngine.ThrowSecurityException(Assembly asm, PermissionSet granted, PermissionSet refused, RuntimeMethodHandle rmh, SecurityAction action, Object demand, IPermission permThatFailed) at dws.Modules.BradyCo_Diary.ViewBradyCo_Diary.Page_Load(Object sender, EventArgs e) at System.Web.UI.Control.OnLoad(EventArgs e) at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) The action that failed was: LinkDemand The Zone of the assembly that failed was: MyComputer --- End of inner exception stack trace ---

to:
<trust level="Full" originUrl="http://localhost/.*"/>