摘要：MSDN 2011-1月文章：在 WF 4 中编写自定义控制流活动: http://msdn.microsoft.com/zh-cn/magazine/gg535667.aspx值得一看，mark一下 阅读全文

摘要：this.wd = new WorkflowDesigner();this.wd.Load(new Flowchart()); ReadOnlyState state = this.wd.Context.Items.GetValue<ReadOnlyState>();state.IsReadOnly = true;这样在设计器中就不允许修改工作流定义了参考：http://blogs.msdn.com/b/kushals/archive/2009/09/14/re-hosting-the-workflow-desinger-in-read-only-mode.aspx 阅读全文

摘要：先看看System.Activities.Hosting.SymbolResolver的定义：public sealed class SymbolResolver : IDictionary<string, Object>, ICollection<KeyValuePair<string, Object>>, IEnumerable<KeyValuePair<string, Object>>, IEnumerable实现了IDictionary<string, Object> 接口，我们在工作流宿主中将需要在自定义Acti 阅读全文