IMemberCreationService missing
I created a new
Windows Application project today, added all references to the Workflow assemblies and then added a Sequential Workflow (code) to my project. Every time I open the designer I get:
The service 'System.Workflow.ComponentModel.Design.IMemberCreationService' must be installed for this operation to succeed. Ensure that this service is available.at System.Workflow.ComponentModel.Design.NamePropertyDescriptor.SetValue(Object component, Object value)
at System.ComponentModel.Design.Serialization.CodeDomSerializerBase.DeserializeAssignStatement(IDesignerSerializationManager manager, CodeAssignStatement statement)
at System.ComponentModel.Design.Serialization.CodeDomSerializerBase.DeserializeStatement(IDesignerSerializationManager manager, CodeStatement statement)
When I do a new console workflow project or new activity library I can edit workflows without a problem.
I just tried again with a fresh
Windwos Application project. I got a different error and maybe I got this error once before and didn't catch it.
The designer could not be shown for this file because none of the classes within it can be designed.at System.ComponentModel.Design.Serialization.CodeDomDesignerLoader.EnsureDocument(IDesignerSerializationManager manager)
at System.ComponentModel.Design.Serialization.CodeDomDesignerLoader.PerformLoad(IDesignerSerializationManager manager)
at Microsoft.VisualStudio.Design.Serialization.CodeDom.VSCodeDomDesignerLoader.PerformLoad(IDesignerSerializationManager serializationManager)
at Microsoft.VisualStudio.Design.Serialization.CodeDom.VSCodeDomDesignerLoader.DeferredLoadHandler.Microsoft.VisualStudio.TextManager.Interop.IVsTextBufferDataEvents.OnLoadCompleted(Int32 fReload)
Of course this is a hack, but it works and is pretty simple to do...Add all the needed references, and also add the following line in the csproj file.
<ProjectTypeGuids>{14822709-B5A1-4724-98CA-57A101D1B079};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</ProjectTypeGuids>
Put it under the first <PropertyGroup> item right beneath the <AssemblyName> item.
Just another alternative...
David
This did not work in my own scenerio. In my application I had a class library project containing all my custom activities and another Winforms project that references this library. I have the Workflow viewer control on one of my forms. Something like what visual studio had and each time I tried to change the workflow properties, i get this exception and this still persists even after using ur suggestion. What else can I do?
