gistfile1.txt

test

MainForm.cs

using System.Windows.Forms;
using AsyncWpf;

namespace AsyncWinForms
{
    public partial class MainForm : Form
    {
        private readonly ExampleDatabaseService _databaseService = new ExampleDatabaseService();
        private readonly ExamplePersonService _personService = new ExamplePersonService();
        private readonly ExampleWebService _webService = new ExampleWebService();
        
        public MainForm()
        {
            InitializeComponent();
        }
    }
}

MainForm.Designer.cs

namespace AsyncWinForms
{
    partial class MainForm
    {
        /// <summary>
        /// Required designer variable.
        /// </summary>
        private System.ComponentModel.IContainer components = null;

        /// <summary>
        /// Clean up any resources being used.
        /// </summary>
        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
        protected override void Dispose(bool disposing)
        {
            if (disposing && (components != null))
            {
                components.Dispose();
            }
            base.Dispose(disposing);
        }

        #region Windows Form Designer generated code

        /// <summary>
        /// Required method for Designer support - do not modify
        /// the contents of this method with the code editor.
        /// </summary>
        private void InitializeComponent()
        {
            this.progressBar = new System.Windows.Forms.ProgressBar();
            this.messageBox = new System.Windows.Forms.TextBox();
            this.runSynchronousButton = new System.Windows.Forms.Button();
            this.runAsyncTaskButton = new System.Windows.Forms.Button();
            this.backgroundWorkerButton = new System.Windows.Forms.Button();
            this.runAsyncLegacy = new System.Windows.Forms.Button();
            this.runTaskButton = new System.Windows.Forms.Button();
            this.SuspendLayout();
            // 
            // progressBar
            // 
            this.progressBar.Location = new System.Drawing.Point(12, 42);
            this.progressBar.Name = "progressBar";
            this.progressBar.Size = new System.Drawing.Size(444, 23);
            this.progressBar.TabIndex = 0;
            // 
            // messageBox
            // 
            this.messageBox.Location = new System.Drawing.Point(12, 16);
            this.messageBox.Name = "messageBox";
            this.messageBox.Size = new System.Drawing.Size(444, 20);
            this.messageBox.TabIndex = 1;
            // 
            // runSynchronousButton
            // 
            this.runSynchronousButton.Location = new System.Drawing.Point(293, 326);
            this.runSynchronousButton.Name = "runSynchronousButton";
            this.runSynchronousButton.Size = new System.Drawing.Size(163, 23);
            this.runSynchronousButton.TabIndex = 2;
            this.runSynchronousButton.Text = "Run Synchronous";
            this.runSynchronousButton.UseVisualStyleBackColor = true;
            this.runSynchronousButton.Click += new System.EventHandler(this.RunSynchronousClick);
            // 
            // runAsyncTaskButton
            // 
            this.runAsyncTaskButton.Location = new System.Drawing.Point(293, 210);
            this.runAsyncTaskButton.Name = "runAsyncTaskButton";
            this.runAsyncTaskButton.Size = new System.Drawing.Size(163, 23);
            this.runAsyncTaskButton.TabIndex = 3;
            this.runAsyncTaskButton.Text = "Run Async Task";
            this.runAsyncTaskButton.UseVisualStyleBackColor = true;
            this.runAsyncTaskButton.Click += new System.EventHandler(this.RunAsyncTaskButtonClick);
            // 
            // backgroundWorkerButton
            // 
            this.backgroundWorkerButton.Location = new System.Drawing.Point(293, 297);
            this.backgroundWorkerButton.Name = "backgroundWorkerButton";
            this.backgroundWorkerButton.Size = new System.Drawing.Size(163, 23);
            this.backgroundWorkerButton.TabIndex = 4;
            this.backgroundWorkerButton.Text = "Run Background Worker";
            this.backgroundWorkerButton.UseVisualStyleBackColor = true;
            this.backgroundWorkerButton.Click += new System.EventHandler(this.BackgroundWorkerButtonClick);
            // 
            // runAsyncLegacy
            // 
            this.runAsyncLegacy.Location = new System.Drawing.Point(293, 268);
            this.runAsyncLegacy.Name = "runAsyncLegacy";
            this.runAsyncLegacy.Size = new System.Drawing.Size(163, 23);
            this.runAsyncLegacy.TabIndex = 5;
            this.runAsyncLegacy.Text = "Run Async Legacy";
            this.runAsyncLegacy.UseVisualStyleBackColor = true;
            this.runAsyncLegacy.Click += new System.EventHandler(this.RunAsyncLegacyClick);
            // 
            // runTaskButton
            // 
            this.runTaskButton.Location = new System.Drawing.Point(293, 239);
            this.runTaskButton.Name = "runTaskButton";
            this.runTaskButton.Size = new System.Drawing.Size(163, 23);
            this.runTaskButton.TabIndex = 6;
            this.runTaskButton.Text = "Run Task";
            this.runTaskButton.UseVisualStyleBackColor = true;
            this.runTaskButton.Click += new System.EventHandler(this.RunTaskButtonClick);
            // 
            // MainForm
            // 
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(468, 361);
            this.Controls.Add(this.runTaskButton);
            this.Controls.Add(this.runAsyncLegacy);
            this.Controls.Add(this.backgroundWorkerButton);
            this.Controls.Add(this.runAsyncTaskButton);
            this.Controls.Add(this.runSynchronousButton);
            this.Controls.Add(this.messageBox);
            this.Controls.Add(this.progressBar);
            this.Name = "MainForm";
            this.Text = "Example";
            this.ResumeLayout(false);
            this.PerformLayout();

        }

        #endregion

        private System.Windows.Forms.ProgressBar progressBar;
        private System.Windows.Forms.TextBox messageBox;
        private System.Windows.Forms.Button runSynchronousButton;
        private System.Windows.Forms.Button runAsyncTaskButton;
        private System.Windows.Forms.Button backgroundWorkerButton;
        private System.Windows.Forms.Button runAsyncLegacy;
        private System.Windows.Forms.Button runTaskButton;
    }
}

MainFormAsyncLegacy.cs

using System;
using System.Threading;
using System.Windows.Forms;
using AsyncWpf;

namespace AsyncWinForms
{
    public partial class MainForm : Form
    {
        private void RunAsyncLegacyClick(object sender, EventArgs e)
        {
            var state = new State
                        {
                            Context = SynchronizationContext.Current
                        };


            _personService.BeginGet("jkells@gmail.com", OnGetUserComplete, state);
        }

        private void OnGetUserComplete(IAsyncResult ar)
        {
            var state = (State) ar.AsyncState;
            state.Person = _personService.EndGet(ar);

            _webService.BeginGetBalance("jkells@gmail.com", OnGetBalanceComplete, state);
        }

        private void OnGetBalanceComplete(IAsyncResult ar)
        {
            var state = (State) ar.AsyncState;
            state.Balance = _webService.EndGetBalance(ar);

            state.Context.Post(o => { progressBar.Value = 50; }, null);

            _databaseService.BeginSave(new DatabaseRecord
                                       {
                                           Balance = state.Balance,
                                           Person = state.Person,
                                           Timestamp = DateTime.UtcNow
                                       }, OnSaveComplete, state);
        }

        private void OnSaveComplete(IAsyncResult ar)
        {
            var state = (State) ar.AsyncState;
            state.Context.Post(o =>
                               {
                                   progressBar.Value = 100;
                                   messageBox.Text = "Complete";
                               }, null);
        }

        private class State
        {
            public SynchronizationContext Context { get; set; }
            public Person Person { get; set; }
            public decimal Balance { get; set; }
        }
    }
}

MainFormAsyncTask.cs

using System;
using System.Windows.Forms;
using AsyncWpf;

namespace AsyncWinForms
{
    public partial class MainForm : Form
    {
        private async void RunAsyncTaskButtonClick(object sender, EventArgs e)
        {
            progressBar.Value = 10;
            var person = await _personService.GetAsync("jkells@gmail.com");

            progressBar.Value = 40;
            var balance = await _webService.GetBalanceAsync("jkells@gmail.com");

            progressBar.Value = 80;
            await _databaseService.SaveAsync(new DatabaseRecord
                                  {
                                      Balance = balance,
                                      Person = person,
                                      Timestamp = DateTime.UtcNow
                                  });

            progressBar.Value = 100;
            messageBox.Text = "Complete";
        }
    }
}

MainFormSynchronous.cs

using System;
using System.ComponentModel;
using System.Windows.Forms;
using AsyncWpf;

namespace AsyncWinForms
{
    public partial class MainForm : Form
    {
        private void RunSynchronousClick(object sender, EventArgs e)
        {
            var person = _personService.Get("jkells@gmail.com");

            progressBar.Value = 50;
            var balance = _webService.GetBalance("jkells@gmail.com");
            
            _databaseService.Save(new DatabaseRecord
            {
                Balance = balance,
                Person = person,
                Timestamp = DateTime.UtcNow
            });

            progressBar.Value = 100;
            messageBox.Text = "Complete";
        }
    }
}

MainFormTask.cs

using System;
using System.Windows.Forms;
using AsyncWpf;

namespace AsyncWinForms
{
    public partial class MainForm : Form
    {
        private void RunTaskButtonClick(object sender, EventArgs e)
        {
            progressBar.Value = 10;
            _personService.GetAsync("jkells@gmail.com")
                .ContinueWith(task1 =>
                              {
                                  _webService.GetBalanceAsync("jkells@gmail.com")
                                      .ContinueWith(task2 =>
                                                    {
                                                        progressBar.Value = 50;
                                                        var task3 = _databaseService.SaveAsync(new DatabaseRecord
                                                                                               {
                                                                                                   Balance = task2.Result,
                                                                                                   Person = task1.Result,
                                                                                                   Timestamp =
                                                                                                       DateTime.UtcNow
                                                                                               });
                                                        task3.ContinueWith(t4 =>
                                                                           {
                                                                               progressBar.Value = 100;
                                                                               messageBox.Text = "Complete";
                                                                           });
                                                    });
                              });
        }
    }
}

MainFormWorker.cs

using System;
using System.ComponentModel;
using System.Windows.Forms;
using AsyncWpf;

namespace AsyncWinForms
{
    public partial class MainForm : Form
    {
        private void BackgroundWorkerButtonClick(object sender, System.EventArgs e)
        {
            var worker = new BackgroundWorker();
            worker.DoWork += OnDoWork;
            worker.ProgressChanged += OnProgressChanged;
            worker.RunWorkerCompleted += OnWorkerCompleted;
            worker.WorkerReportsProgress = true;
            worker.RunWorkerAsync();
        }

        private void OnWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
        {            
            var result = (Tuple<Person, decimal>) e.Result;
            _databaseService.Save(new DatabaseRecord
                                  {
                                      Balance = result.Item2,
                                      Person = result.Item1,
                                      Timestamp = DateTime.UtcNow
                                  });
            progressBar.Value = 100;
        }

        private void OnProgressChanged(object sender, ProgressChangedEventArgs e)
        {
            progressBar.Value = e.ProgressPercentage;
        }

        private void OnDoWork(object sender, DoWorkEventArgs e)
        {
            var worker = (BackgroundWorker) sender;
            worker.ReportProgress(10);
            var person = _personService.Get("jkells@gmail.com");
            var balance = _webService.GetBalance("jkells@gmail.com");

            e.Result = new Tuple<Person, decimal>(person, balance);
            worker.ReportProgress(50);
        }
    }
}