Datasheet

Chapter 1: Workﬂ ow Programming Principles

Listing 1 - 11 follows the best practice of instantiating SPSite and SPWeb objects in the context of using

statements to ensure that the Dispose methods of these objects are automatically invoked when they go

out of scope.

Next, we ’ ll design a workflow that uses the custom activities and condition that we ’ ve developed in this

chapter, as shown in Listing 1 - 12 .

Listing 1 - 12: A workflow that uses the custom activities and condition developed in

this chapter

using System;

using System.ComponentModel;

using System.ComponentModel.Design;

using System.Collections;

using System.Drawing;

using System.Linq;

using System.Workflow.ComponentModel.Compiler;

using System.Workflow.ComponentModel.Serialization;

using System.Workflow.ComponentModel;

using System.Workflow.ComponentModel.Design;

using System.Workflow.Runtime;

using System.Workflow.Activities;

using System.Workflow.Activities.Rules;

using Microsoft.SharePoint;

using Microsoft.SharePoint.Workflow;

using Microsoft.SharePoint.WorkflowActions;

using Microsoft.Office.Workflow.Utility;

namespace Chapter1

{

public sealed class Workflow1 : SequentialWorkflowActivity

{

private LogToHistoryListActivity logToHistoryListActivity2;

private LogToHistoryListActivity logToHistoryListActivity3;

private OnWorkflowActivated onWorkflowActivated1;

private WhileActivity whileActivity1;

private LogToHistoryListActivity logToHistoryListActivity1;

private LogToHistoryListActivity logToHistoryListActivity4;

private SequenceActivity sequenceActivity1;

private SequenceActivity sequenceActivity2;

public Workflow1()

{

InitializeComponent();

}

private void InitializeComponent()

{

this.CanModifyActivities = true;

Chapter1.CustomCondition customcondition1 =

new Chapter1.CustomCondition();

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