How to get the context item in Workflow activity (SharePoint)

Question

I am writing custom activity for sharepoint workflow and I don\'t know how I can use current workflow item, SPWeb or SPSite.

I see http://blogs.microsoft.co.il/blogs/dav

Answer 1

I try this code and runs as well bat the contex objet always is null. some one know why?

protected override ActivityExecutionStatus Execute(ActivityExecutionContext executionContext)
    {


        //return base.Execute(executionContext);
        int IdRetorno = -1;



        try {
            SPSecurity.RunWithElevatedPrivileges(delegate
            {
                LogExceptionToWorkflowHistory("Inicio:", executionContext, WorkflowInstanceId);
                using (SPSite sitio = new SPSite(this.__Context.Site.ID))
                {

                    using (SPWeb web = sitio.AllWebs[this.__Context.Site.ID])
                    {


                        SPList sourceList = web.Lists[new Guid(ListId)];
                        LogExceptionToWorkflowHistory(ListId, executionContext, WorkflowInstanceId);
                        SPList destinoList = web.Lists[new Guid(SourceListId)];
                        LogExceptionToWorkflowHistory(SourceListId, executionContext, WorkflowInstanceId);
                        SPListItem sourceItem = sourceList.Items.GetItemById(ListItem);
                        LogExceptionToWorkflowHistory(ListItem.ToString(), executionContext, WorkflowInstanceId);

                        SPListItem destinoItem = destinoList.Items.Add();
                        CopyFieldValues(sourceItem, destinoItem);
                        destinoItem.SystemUpdate();

                        sourceItem.Delete();
                        IdRetorno = destinoItem.ID;
                    }
                }

            });

        }
        catch (Exception ex) {
            if (!System.Diagnostics.EventLog.SourceExists("MyApp1"))
                System.Diagnostics.EventLog.CreateEventSource(
                   "MyApp1", "Application");

            EventLog EventLog1 = new EventLog();
            EventLog1.Source = "MyApp1";
            EventLog1.WriteEntry(ex.Message,EventLogEntryType.FailureAudit);

            LogExceptionToWorkflowHistory(ex.Message, executionContext, WorkflowInstanceId);
        }


        OutListItemID = IdRetorno;




        return base.Execute(executionContext);

    }

thanks