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Microsoft Visual Studio 2008/.NET Framework 3.5

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Task 1: Create the Simple Expense Report Application

In this task, you create the project file and Windows Form application that is used throughout the remainder of this tutorial. The project file contains the necessary assembly references that most Windows Workflow Foundation applications need. As you progress through the tutorial, you will edit this file to add new project files.

The Windows Form application contains the complete user interface for the tutorial. However, you will add additional logic to the Windows Form as you build the sequential workflow throughout the remaining exercises.

Creating the Project File

Follow these steps to create the project file for the expense report application. If you are using C#, give the project file the .csproj file name extension. If you are using Visual Basic, give it a .vbproj file name extension.

To create the SimpleExpenseReport project file

  1. In your project directory, create a new file named SimpleExpenseReport.

    Use the .csproj extension for a C# project or the .vbproj extension for a Visual Basic project.

  2. Copy and paste the following code into this project file.

    Visual Basic
    <?xml version="1.0" encoding="utf-8"?>
<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
  <PropertyGroup>
    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
    <ProductVersion>8.0.50727</ProductVersion>
    <SchemaVersion>2.0</SchemaVersion>
    <ProjectGuid>{37000091-C9D4-4954-B65E-5EED0AD2CD55}</ProjectGuid>
    <ProjectTypeGuids>{D59BE175-2ED0-4C54-BE3D-CDAA9F3214C8};{F184B08F-C81C-45F6-A57F-5ABD9991F28F}</ProjectTypeGuids>
    <OutputType>WinExe</OutputType>
    <StartupObject>
    </StartupObject>
    <RootNamespace>SimpleExpenseReport</RootNamespace>
    <AssemblyName>SimpleExpenseReport</AssemblyName>
    <MyType>WindowsFormsWithCustomSubMain</MyType>
  </PropertyGroup>
  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
    <DebugSymbols>true</DebugSymbols>
    <DebugType>full</DebugType>
    <DefineDebug>true</DefineDebug>
    <DefineTrace>true</DefineTrace>
    <IncrementalBuild>true</IncrementalBuild>
    <OutputPath>bin\</OutputPath>
    <DefineConstants>_MyType="Windows"</DefineConstants>
    <DocumentationFile>SimpleExpenseReport.xml</DocumentationFile>
    <UseVSHostingProcess>false</UseVSHostingProcess>
  </PropertyGroup>
  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
    <DebugSymbols>false</DebugSymbols>
    <DefineDebug>false</DefineDebug>
    <DefineTrace>true</DefineTrace>
    <IncrementalBuild>false</IncrementalBuild>
    <Optimize>true</Optimize>
    <OutputPath>bin\</OutputPath>
    <DefineConstants>_MyType="Windows"</DefineConstants>
    <DocumentationFile>SimpleExpenseReport.xml</DocumentationFile>
    <UseVSHostingProcess>false</UseVSHostingProcess>
  </PropertyGroup>
  <ItemGroup>
    <Reference Include="System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
      <Name>System</Name>
      <SpecificVersion>True</SpecificVersion>
    </Reference>
    <Reference Include="System.Data, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
      <Name>System.Data</Name>
      <SpecificVersion>True</SpecificVersion>
    </Reference>
    <Reference Include="System.Deployment" />
    <Reference Include="System.Transactions, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
      <Name>System.Transactions</Name>
      <SpecificVersion>True</SpecificVersion>
    </Reference>
    <Reference Include="System.Xml, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
      <Name>System.Xml</Name>
      <SpecificVersion>True</SpecificVersion>
    </Reference>
    <Reference Include="System.Workflow.Activities, Version=3.0.00000.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
      <Name>System.Workflow.Activities</Name>
      <SpecificVersion>True</SpecificVersion>
    </Reference>
    <Reference Include="System.Workflow.ComponentModel, Version=3.0.00000.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
      <Name>System.Workflow.ComponentModel</Name>
      <SpecificVersion>True</SpecificVersion>
    </Reference>
    <Reference Include="System.Workflow.Runtime, Version=3.0.00000.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
      <Name>System.Workflow.Runtime</Name>
      <SpecificVersion>True</SpecificVersion>
    </Reference>
    <Reference Include="System.Design, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
      <Name>System.Design</Name>
      <SpecificVersion>True</SpecificVersion>
    </Reference>
    <Reference Include="System.Drawing, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
      <Name>System.Drawing</Name>
      <SpecificVersion>True</SpecificVersion>
    </Reference>
    <Reference Include="System.Drawing.Design, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
      <Name>System.Drawing.Design</Name>
      <SpecificVersion>True</SpecificVersion>
    </Reference>
    <Reference Include="System.Windows.Forms">
      <Name>System.Windows.Forms</Name>
    </Reference>
    <Reference Include="mscorlib">
      <Name>mscorlib</Name>
    </Reference>
    <Reference Include="System.Web, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=x86">
      <Name>System.Web</Name>
      <SpecificVersion>True</SpecificVersion>
    </Reference>
    <Reference Include="System.Web.Services, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
      <Name>System.Web.Services</Name>
      <SpecificVersion>True</SpecificVersion>
    </Reference>
  </ItemGroup>
  <ItemGroup>
    <Import Include="Microsoft.VisualBasic" />
    <Import Include="System" />
    <Import Include="System.Collections" />
    <Import Include="System.Data" />
    <Import Include="System.Diagnostics" />
  </ItemGroup>
  <ItemGroup>
    <Compile Include="Program.vb">
      <SubType>Form</SubType>
    </Compile>
  </ItemGroup>
  <Import Project="$(MSBuildBinPath)\Microsoft.VisualBasic.Targets" />
  <Import Project="$(MSBuildExtensionsPath)\Microsoft\Windows Workflow Foundation\v3.0\Workflow.VisualBasic.Targets" />
  <PropertyGroup>
    <PreBuildEvent>
    </PreBuildEvent>
    <PostBuildEvent>
    </PostBuildEvent>
  </PropertyGroup>
</Project>

    C#
    <?xml version="1.0" encoding="utf-8"?>
<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
  <PropertyGroup>
    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
    <ProductVersion>8.0.50727</ProductVersion>
    <SchemaVersion>2.0</SchemaVersion>
    <ProjectGuid>{37000091-C9D4-4954-B65E-5EED0AD2CD55}</ProjectGuid>
    <OutputType>WinExe</OutputType>
    <RootNamespace>Microsoft.Samples.Workflow.Tutorials.SequentialWorkflow</RootNamespace>
    <AssemblyName>SimpleExpenseReport</AssemblyName>
    <ProjectTypeGuids>{14822709-B5A1-4724-98CA-57A101D1B079};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</ProjectTypeGuids>
    <WarningLevel>4</WarningLevel>
    <StartupObject>
    </StartupObject>
  </PropertyGroup>
  <PropertyGroup Condition=" '$(Configuration)' == 'Debug' ">
    <DebugSymbols>true</DebugSymbols>
    <DebugType>full</DebugType>
    <Optimize>false</Optimize>
    <OutputPath>.\bin\Debug\</OutputPath>
    <DefineConstants>DEBUG;TRACE</DefineConstants>
    <UseVSHostingProcess>false</UseVSHostingProcess>
  </PropertyGroup>
  <PropertyGroup Condition=" '$(Configuration)' == 'Release' ">
    <DebugSymbols>false</DebugSymbols>
    <Optimize>true</Optimize>
    <OutputPath>.\bin\Release\</OutputPath>
    <DefineConstants>TRACE</DefineConstants>
    <UseVSHostingProcess>false</UseVSHostingProcess>
  </PropertyGroup>
  <ItemGroup>
    <Reference Include="System.configuration" />
    <Reference Include="System.Windows.Forms" />
    <Reference Include="System.Workflow.Activities" />
    <Reference Include="System.Workflow.ComponentModel" />
    <Reference Include="System.Workflow.Runtime" />
    <Reference Include="System" />
    <Reference Include="System.Data" />
    <Reference Include="System.Design" />
    <Reference Include="System.Drawing" />
    <Reference Include="System.Drawing.Design" />
    <Reference Include="System.Transactions" />
    <Reference Include="System.Xml" />
    <Reference Include="System.Web" />
    <Reference Include="System.Web.Services" />
  </ItemGroup>
  <ItemGroup>
    <Compile Include="Program.cs">
      <SubType>Form</SubType>
    </Compile>
  </ItemGroup>
  <Import Project="$(MSBuildBinPath)\Microsoft.CSharp.Targets" />
  <Import Project="$(MSBuildExtensionsPath)\Microsoft\Windows Workflow Foundation\v3.0\Workflow.Targets" />
</Project>

Creating the Windows Form Application

Next, you create the Windows Forms application, which will contain the user interface for the remainder of the tutorial.

To create the simple expense report Windows Form application

  1. In your projects directory, create a new file named Program.

    Use the .cs file name extension for a C# application or the .vb file name extension for a Visual Basic application.

  2. In the Program source code file, add the following code for the Windows Form application.

    Visual Basic
    Imports Microsoft.VisualBasic
Imports System
Imports System.ComponentModel
Imports System.Drawing
Imports System.Windows.Forms
Imports System.Collections.Generic
Imports System.Workflow.Runtime
Imports System.Workflow.Runtime.Hosting
Imports System.Workflow.Activities
Imports System.Threading

Namespace Microsoft.Samples.Workflow.Tutorials.SequentialWorkflow
    Public Class MainForm : Inherits Form
        Private label1 As System.Windows.Forms.Label
        Private result As System.Windows.Forms.TextBox
        Private label2 As System.Windows.Forms.Label
        Private WithEvents submitButton As System.Windows.Forms.Button
        Private approvalState As System.Windows.Forms.Label
        Private WithEvents approveButton As System.Windows.Forms.Button
        Private WithEvents rejectButton As System.Windows.Forms.Button
        Private WithEvents amount As System.Windows.Forms.TextBox
        Private panel1 As System.Windows.Forms.Panel

        Private components As System.ComponentModel.IContainer = Nothing

        Public Sub New()
            InitializeComponent()

            ' Collapse approve/reject panel
            Me.Height = Me.MinimumSize.Height
        End Sub

        Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
            If disposing AndAlso (Not components Is Nothing) Then
                components.Dispose()
            End If
            MyBase.Dispose(disposing)
        End Sub

        Private Sub InitializeComponent()
            Me.label1 = New System.Windows.Forms.Label()
            Me.result = New System.Windows.Forms.TextBox()
            Me.label2 = New System.Windows.Forms.Label()
            Me.submitButton = New System.Windows.Forms.Button()
            Me.approvalState = New System.Windows.Forms.Label()
            Me.approveButton = New System.Windows.Forms.Button()
            Me.rejectButton = New System.Windows.Forms.Button()
            Me.amount = New System.Windows.Forms.TextBox()
            Me.panel1 = New System.Windows.Forms.Panel()
            Me.panel1.SuspendLayout()
            Me.SuspendLayout()
            ' 
            ' label1
            ' 
            Me.label1.AutoSize = True
            Me.label1.Location = New System.Drawing.Point(10, 13)
            Me.label1.Name = "label1"
            Me.label1.Size = New System.Drawing.Size(43, 13)
            Me.label1.TabIndex = 1
            Me.label1.Text = "Amount"
            ' 
            ' result
            ' 
            Me.result.Location = New System.Drawing.Point(13, 70)
            Me.result.Name = "result"
            Me.result.ReadOnly = True
            Me.result.Size = New System.Drawing.Size(162, 20)
            Me.result.TabIndex = 1
            Me.result.TabStop = False
            ' 
            ' label2
            ' 
            Me.label2.AutoSize = True
            Me.label2.Location = New System.Drawing.Point(10, 54)
            Me.label2.Name = "label2"
            Me.label2.Size = New System.Drawing.Size(37, 13)
            Me.label2.TabIndex = 3
            Me.label2.Text = "Result"
            ' 
            ' submitButton
            ' 
            Me.submitButton.Enabled = False
            Me.submitButton.Location = New System.Drawing.Point(56, 95)
            Me.submitButton.Name = "submitButton"
            Me.submitButton.Size = New System.Drawing.Size(75, 23)
            Me.submitButton.TabIndex = 2
            Me.submitButton.Text = "Submit"
            ' 
            ' approvalState
            ' 
            Me.approvalState.AutoSize = True
            Me.approvalState.Location = New System.Drawing.Point(10, 9)
            Me.approvalState.Name = "approvalState"
            Me.approvalState.Size = New System.Drawing.Size(49, 13)
            Me.approvalState.TabIndex = 4
            Me.approvalState.Text = "Approval"
            ' 
            ' approveButton
            ' 
            Me.approveButton.Enabled = False
            Me.approveButton.Location = New System.Drawing.Point(11, 25)
            Me.approveButton.Name = "approveButton"
            Me.approveButton.Size = New System.Drawing.Size(75, 23)
            Me.approveButton.TabIndex = 0
            Me.approveButton.Text = "Approve"
            ' 
            ' rejectButton
            ' 
            Me.rejectButton.Enabled = False
            Me.rejectButton.Location = New System.Drawing.Point(86, 25)
            Me.rejectButton.Name = "rejectButton"
            Me.rejectButton.Size = New System.Drawing.Size(75, 23)
            Me.rejectButton.TabIndex = 1
            Me.rejectButton.Text = "Reject"
            ' 
            ' amount
            ' 
            Me.amount.Location = New System.Drawing.Point(13, 29)
            Me.amount.MaxLength = 9
            Me.amount.Name = "amount"
            Me.amount.Size = New System.Drawing.Size(162, 20)
            Me.amount.TabIndex = 0
            ' 
            ' panel1
            ' 
            Me.panel1.Controls.Add(Me.approvalState)
            Me.panel1.Controls.Add(Me.approveButton)
            Me.panel1.Controls.Add(Me.rejectButton)
            Me.panel1.Location = New System.Drawing.Point(7, 124)
            Me.panel1.Name = "panel1"
            Me.panel1.Size = New System.Drawing.Size(172, 66)
            Me.panel1.TabIndex = 8
            ' 
            ' MainForm
            ' 
            Me.AcceptButton = Me.submitButton
            Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0F, 13.0F)
            Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
            Me.ClientSize = New System.Drawing.Size(187, 201)
            Me.MinimumSize = New System.Drawing.Size(197,155)
            Me.MinimumSize = New System.Drawing.Size(197, 155)
            Me.Controls.Add(Me.result)
            Me.Controls.Add(Me.label2)
            Me.Controls.Add(Me.panel1)
            Me.Controls.Add(Me.amount)
            Me.Controls.Add(Me.submitButton)
            Me.Controls.Add(Me.label1)
            Me.FormBorderStyle = System.Windows.Forms.FormBorderStyle.Fixed3D
            Me.MaximizeBox = False
            Me.MinimizeBox = False
            Me.Name = "MainForm"
            Me.Text = "Simple Expense Report"
            Me.panel1.ResumeLayout(False)
            Me.panel1.PerformLayout()
            Me.ResumeLayout(False)
            Me.PerformLayout()

        End Sub

        Private Sub submitButton_Click(ByVal sender As Object, ByVal e As EventArgs) _
        Handles submitButton.Click
        End Sub

        Private Sub approveButton_Click(ByVal sender As Object, ByVal e As EventArgs) _
        Handles approveButton.Click
        End Sub

        Private Sub rejectButton_Click(ByVal sender As Object, ByVal e As EventArgs) _
        Handles rejectButton.Click
        End Sub

        Private Sub amount_KeyPress(ByVal sender As Object, _
        ByVal e As KeyPressEventArgs) Handles amount.KeyPress
            If (Not Char.IsControl(e.KeyChar)) AndAlso ((Not Char.IsDigit(e.KeyChar))) _
            Then
                e.KeyChar = Char.MinValue
            End If
        End Sub

        Private Sub amount_TextChanged(ByVal sender As Object, _
        ByVal e As EventArgs) Handles amount.TextChanged
            submitButton.Enabled = amount.Text.Length > 0
        End Sub
    End Class

    Friend Class Program
        Private Sub New()
        End Sub
        <STAThread()> _
        Shared Sub Main()
            Application.EnableVisualStyles()
            Application.Run(New MainForm())
        End Sub
    End Class
End Namespace
    C#
    using System;
using System.ComponentModel;
using System.Drawing;
using System.Windows.Forms;
using System.Collections.Generic;
using System.Workflow.Runtime;
using System.Workflow.Runtime.Hosting;
using System.Workflow.Activities;
using System.Threading;

namespace Microsoft.Samples.Workflow.Tutorials.SequentialWorkflow
{
    public class MainForm : Form
    {
        private System.Windows.Forms.Label label1;
        private System.Windows.Forms.TextBox result;
        private System.Windows.Forms.Label label2;
        private System.Windows.Forms.Button submitButton;
        private System.Windows.Forms.Label approvalState;
        private System.Windows.Forms.Button approveButton;
        private System.Windows.Forms.Button rejectButton;
        private System.Windows.Forms.TextBox amount;
        private System.Windows.Forms.Panel panel1;

        private System.ComponentModel.IContainer components = null;

        public MainForm()
        {
            InitializeComponent();

            // Collapse approve/reject panel
            this.Height = this.MinimumSize.Height;
        }

        protected override void Dispose(bool disposing)
        {
            if (disposing && (components != null))
            {
                components.Dispose();
            }
            base.Dispose(disposing);
        }

        private void InitializeComponent()
        {
            this.label1 = new System.Windows.Forms.Label();
            this.result = new System.Windows.Forms.TextBox();
            this.label2 = new System.Windows.Forms.Label();
            this.submitButton = new System.Windows.Forms.Button();
            this.approvalState = new System.Windows.Forms.Label();
            this.approveButton = new System.Windows.Forms.Button();
            this.rejectButton = new System.Windows.Forms.Button();
            this.amount = new System.Windows.Forms.TextBox();
            this.panel1 = new System.Windows.Forms.Panel();
            this.panel1.SuspendLayout();
            this.SuspendLayout();
            // 
            // label1
            // 
            this.label1.AutoSize = true;
            this.label1.Location = new System.Drawing.Point(10, 13);
            this.label1.Name = "label1";
            this.label1.Size = new System.Drawing.Size(43, 13);
            this.label1.TabIndex = 1;
            this.label1.Text = "Amount";
            // 
            // result
            // 
            this.result.Location = new System.Drawing.Point(13, 70);
            this.result.Name = "result";
            this.result.ReadOnly = true;
            this.result.Size = new System.Drawing.Size(162, 20);
            this.result.TabIndex = 1;
            this.result.TabStop = false;
            // 
            // label2
            // 
            this.label2.AutoSize = true;
            this.label2.Location = new System.Drawing.Point(10, 54);
            this.label2.Name = "label2";
            this.label2.Size = new System.Drawing.Size(37, 13);
            this.label2.TabIndex = 3;
            this.label2.Text = "Result";
            // 
            // submitButton
            // 
            this.submitButton.Enabled = false;
            this.submitButton.Location = new System.Drawing.Point(56, 95);
            this.submitButton.Name = "submitButton";
            this.submitButton.Size = new System.Drawing.Size(75, 23);
            this.submitButton.TabIndex = 2;
            this.submitButton.Text = "Submit";
            this.submitButton.Click += new
                System.EventHandler(this.submitButton_Click);
            // 
            // approvalState
            // 
            this.approvalState.AutoSize = true;
            this.approvalState.Location = new System.Drawing.Point(10, 9);
            this.approvalState.Name = "approvalState";
            this.approvalState.Size = new System.Drawing.Size(49, 13);
            this.approvalState.TabIndex = 4;
            this.approvalState.Text = "Approval";
            // 
            // approveButton
            // 
            this.approveButton.Enabled = false;
            this.approveButton.Location = new System.Drawing.Point(11, 25);
            this.approveButton.Name = "approveButton";
            this.approveButton.Size = new System.Drawing.Size(75, 23);
            this.approveButton.TabIndex = 0;
            this.approveButton.Text = "Approve";
            this.approveButton.Click += new
                System.EventHandler(this.approveButton_Click);
            // 
            // rejectButton
            // 
            this.rejectButton.Enabled = false;
            this.rejectButton.Location = new System.Drawing.Point(86, 25);
            this.rejectButton.Name = "rejectButton";
            this.rejectButton.Size = new System.Drawing.Size(75, 23);
            this.rejectButton.TabIndex = 1;
            this.rejectButton.Text = "Reject";
            this.rejectButton.Click += new
                System.EventHandler(this.rejectButton_Click);
            // 
            // amount
            // 
            this.amount.Location = new System.Drawing.Point(13, 29);
            this.amount.MaxLength = 9;
            this.amount.Name = "amount";
            this.amount.Size = new System.Drawing.Size(162, 20);
            this.amount.TabIndex = 0;
            this.amount.KeyPress += new 
                System.Windows.Forms.KeyPressEventHandler(this.amount_KeyPress);
            this.amount.TextChanged += new
                System.EventHandler(this.amount_TextChanged);
            // 
            // panel1
            // 
            this.panel1.Controls.Add(this.approvalState);
            this.panel1.Controls.Add(this.approveButton);
            this.panel1.Controls.Add(this.rejectButton);
            this.panel1.Location = new System.Drawing.Point(7, 124);
            this.panel1.Name = "panel1";
            this.panel1.Size = new System.Drawing.Size(172, 66);
            this.panel1.TabIndex = 8;
            // 
            // MainForm
            // 
            this.AcceptButton = this.submitButton;
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(187, 201);
            this.MinimumSize = new System.Drawing.Size(197, 155);
            this.Controls.Add(this.result);
            this.Controls.Add(this.label2);
            this.Controls.Add(this.panel1);
            this.Controls.Add(this.amount);
            this.Controls.Add(this.submitButton);
            this.Controls.Add(this.label1);
            this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.Fixed3D;
            this.MaximizeBox = false;
            this.MinimizeBox = false;
            this.Name = "MainForm";
            this.Text = "Simple Expense Report";
            this.panel1.ResumeLayout(false);
            this.panel1.PerformLayout();
            this.ResumeLayout(false);
            this.PerformLayout();

        }

        private void submitButton_Click(object sender, EventArgs e)
        {
        }

        private void approveButton_Click(object sender, EventArgs e)
        {
        }

        private void rejectButton_Click(object sender, EventArgs e)
        {
        }

        private void amount_KeyPress(object sender, KeyPressEventArgs e)
        {
            if (!Char.IsControl(e.KeyChar) && (!Char.IsDigit(e.KeyChar)))
                e.KeyChar = Char.MinValue;
        }

        private void amount_TextChanged(object sender, EventArgs e)
        {
            submitButton.Enabled = amount.Text.Length > 0;
        }
    }

    static class Program
    {
        [STAThread]
        static void Main()
        {
            Application.EnableVisualStyles();
            Application.Run(new MainForm());
        }
    }
}

  3. Build and run your application.

    Your Windows Form application should look similar to the following figure:

Compiling the Code

  1. Click Start, point to Programs, point to Microsoft .NET Framework SDK v2.0, and then click SDK Command Prompt.

  2. Go to the source directory of the tutorial.

  3. At the command prompt, type MSBUILD to build the project.

In Task 2: Create the Sequential Workflow, you create the workflow source file that you will use for the rest of the tutorial.

See Also

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