c# Memory Clean of Objects

finally statement is to ensure that the necessary cleanup of objects, usually objects that are holding external resources, occurs immediately, even if an exception is thrown. One example of such cleanup is calling Close on a FileStream immediately after use instead of waiting for the object to be garbage collected by the common language runtime, as follows

static void CodeobjectCleanup()

{

    System.IO.FileStream file = null;

    System.IO.FileInfo fileInfo = new System.IO.FileInfo("C:\\file.txt");

    file = fileInfo.OpenWrite();

    file.WriteByte(0xF);

    file.Close();

}

Sesquential Workflow

Sequential workflow




Workflow.cs
using System;
using System.ComponentModel;
using System.ComponentModel.Design;
using System.Collections;
using System.Drawing;
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;
namespace WorkflowConsoleApplication7
{
public sealed partial class Workflow6: SequentialWorkflowActivity
{
public Workflow6()
{
InitializeComponent();
}
private void codeActivity1_ExecuteCode(object sender, EventArgs e)
{
Console.WriteLine("Start workflow");
}
private void codeActivity2_ExecuteCode(object sender, EventArgs e)
{
Console.WriteLine("step1");
}
private void codeActivity3_ExecuteCode(object sender, EventArgs e)
{
Console.WriteLine("step2");
}
private void codeActivity4_ExecuteCode(object sender, EventArgs e)
{
Console.WriteLine("End workflow");
Console.ReadLine();
}
}
}

Program.cs
using System;
using System.Collections.Generic;using System.Text;
using System.Threading;
using System.Workflow.Runtime;
using System.Workflow.Runtime.Hosting;
namespace WorkflowConsoleApplication7
{
class Program
{
static void Main(string[] args)
{
using(WorkflowRuntime workflowRuntime = new WorkflowRuntime())
{ AutoResetEvent waitHandle = new AutoResetEvent(false); workflowRuntime.WorkflowCompleted += delegate(object sender, WorkflowCompletedEventArgs e) {waitHandle.Set();}; workflowRuntime.WorkflowTerminated += delegate(object sender, WorkflowTerminatedEventArgs e)
{
Console.WriteLine(e.Exception.Message);
waitHandle.Set();
};
WorkflowInstance instance = workflowRuntime.CreateWorkflow(typeof(WorkflowConsoleApplication7.Workflow7));
instance.Start();
waitHandle.WaitOne();
}
}
}
}

Workflow Delay

Delay in Workflow

workflow.cs

using System;

using System.ComponentModel;

using System.ComponentModel.Design;

using System.Collections;

using System.Drawing;

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;
namespace WorkflowConsoleApplication7

{

public sealed partial class Workflow5: SequentialWorkflowActivity

{

public Workflow5()

{

InitializeComponent();

}
private void codeActivity1_ExecuteCode(object sender, EventArgs e)

{

Console.WriteLine("Start workflow");

}
private void codeActivity2_ExecuteCode(object sender, EventArgs e)

{

Console.WriteLine("Left Side1");

}
private void codeActivity3_ExecuteCode(object sender, EventArgs e)

{ Console.WriteLine("Right side2");

}
private void codeActivity4_ExecuteCode(object sender, EventArgs e)

{

Console.WriteLine("Left side2");

}
private void delayActivity1_InitializeTimeoutDuration(object sender, EventArgs e)

{
}
private void codeActivity7_ExecuteCode(object sender, EventArgs e)

{

Console.WriteLine("Right side1");

}
private void codeActivity6_ExecuteCode(object sender, EventArgs e)

{

Console.WriteLine("Right side3");

}
private void codeActivity5_ExecuteCode(object sender, EventArgs e)

{

Console.WriteLine("End workflow");

Console.ReadLine();

}

}
}

program.cs

using System;

using System.Collections.Generic;

using System.Text;

using System.Threading;

using System.Workflow.Runtime;

using System.Workflow.Runtime.Hosting;
namespace WorkflowConsoleApplication7

{

class Program

{

static void Main(string[] args)

{

using(WorkflowRuntime workflowRuntime = new WorkflowRuntime())

{

AutoResetEvent waitHandle = new AutoResetEvent(false); workflowRuntime.WorkflowCompleted += delegate(object sender, WorkflowCompletedEventArgs e) {waitHandle.Set();}; workflowRuntime.WorkflowTerminated += delegate(object sender, WorkflowTerminatedEventArgs e)

{

Console.WriteLine(e.Exception.Message);

waitHandle.Set();

};

WorkflowInstance instance = workflowRuntime.CreateWorkflow(typeof(WorkflowConsoleApplication7.Workflow3));

instance.Start();

waitHandle.WaitOne();

}

}

}

}

Workflow While Loop

While Loop in Workflow

workflow.cs
using System;
using System.ComponentModel;
using System.ComponentModel.Design;
using System.Collections;
using System.Drawing;
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;
namespace WorkflowConsoleApplication7
{
public sealed partial class Workflow3: SequentialWorkflowActivity
{
public Workflow3()
{
InitializeComponent();
}
private void codeActivity1_ExecuteCode(object sender, EventArgs e)
{ Console.WriteLine("Start");
}
private void codeActivity2_ExecuteCode(object sender, EventArgs e)
{ Console.WriteLine("Left side flow");
}
private void codeActivity3_ExecuteCode(object sender, EventArgs e)
{
Console.WriteLine("Right side flow");
}
private void codeActivity4_ExecuteCode(object sender, EventArgs e)
{
Console.WriteLine("End");
Console.ReadLine();
}
}
}
program.cs
using System;
using System.Collections.Generic;
using System.Text;
using System.Threading;
using System.Workflow.Runtime;
using System.Workflow.Runtime.Hosting;
namespace WorkflowConsoleApplication7
{
class Program
{
static void Main(string[] args)
{
using(WorkflowRuntime workflowRuntime = new WorkflowRuntime())
{
AutoResetEvent waitHandle = new AutoResetEvent(false); workflowRuntime.WorkflowCompleted += delegate(object sender, WorkflowCompletedEventArgs e) {waitHandle.Set();}; workflowRuntime.WorkflowTerminated += delegate(object sender, WorkflowTerminatedEventArgs e)
{
Console.WriteLine(e.Exception.Message);
waitHandle.Set();
};
WorkflowInstance instance = workflowRuntime.CreateWorkflow(typeof(WorkflowConsoleApplication7.Workflow3));
instance.Start();
waitHandle.WaitOne();
}
}
}
}

Parallel Workflow

Workflow.cs

using System;

using System.ComponentModel;

using System.ComponentModel.Design;

using System.Collections;

using System.Drawing;

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;
namespace WorkflowConsoleApplication7

{

public sealed partial class Workflow3: SequentialWorkflowActivity

{

public Workflow3()

{

InitializeComponent();

}
private void codeActivity1_ExecuteCode(object sender, EventArgs e) { Console.WriteLine("Start");
}
private void codeActivity2_ExecuteCode(object sender, EventArgs e) {

Console.WriteLine("Left side flow");

}
private void codeActivity3_ExecuteCode(object sender, EventArgs e) {

Console.WriteLine("Right side flow");

}
private void codeActivity4_ExecuteCode(object sender, EventArgs e) {

Console.WriteLine("End");

Console.ReadLine();

}

}
}

Program.cs

using System;using System.Collections.Generic;
using System.Text;
using System.Threading;
using System.Workflow.Runtime;
using System.Workflow.Runtime.Hosting;
namespace WorkflowConsoleApplication7
{ class Program
{
static void Main(string[] args)
{
using(WorkflowRuntime workflowRuntime = new WorkflowRuntime())
{
AutoResetEvent waitHandle = new AutoResetEvent(false); workflowRuntime.WorkflowCompleted += delegate(object sender, WorkflowCompletedEventArgs e) {waitHandle.Set();}; workflowRuntime.WorkflowTerminated += delegate(object sender, WorkflowTerminatedEventArgs e)
{
Console.WriteLine(e.Exception.Message);
waitHandle.Set();
};
WorkflowInstance instance = workflowRuntime.CreateWorkflow(typeof(WorkflowConsoleApplication7.Workflow3));
instance.Start();
waitHandle.WaitOne();
}
}
}
}

Sharepoint workflow IfElse Condition

Custom workFlow IfElse Condition

workflow.cs
using System;

using System.ComponentModel;

using System.ComponentModel.Design;

using System.Collections;using System.Drawing;

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;
namespace WorkflowConsoleApplication7

{

public sealed partial class Workflow2: SequentialWorkflowActivity

{

public Workflow2()

{

InitializeComponent();

}

private string x;
private void codeActivity2_ExecuteCode(object sender, EventArgs e)

{

Console.WriteLine("yes"); Console.ReadLine();

}
private void codeActivity3_ExecuteCode(object sender, EventArgs e)

{

Console.WriteLine("no");

Console.ReadLine();

}
private void codeActivity1_ExecuteCode(object sender, EventArgs e)

{

Console.WriteLine("Type yes/no");

x = Convert.ToString(Console.ReadLine());

}
}
}

program.cs
using System;
using System.Collections.Generic;
using System.Text;
using System.Threading;
using System.Workflow.Runtime;
using System.Workflow.Runtime.Hosting;
namespace WorkflowConsoleApplication7
{
class Program
{
static void Main(string[] args)
{
using(WorkflowRuntime workflowRuntime = new WorkflowRuntime())
{
AutoResetEvent waitHandle = new AutoResetEvent(false); workflowRuntime.WorkflowCompleted += delegate(object sender, WorkflowCompletedEventArgs e) {waitHandle.Set();
};
workflowRuntime.WorkflowTerminated += delegate(object sender, WorkflowTerminatedEventArgs e)
{
Console.WriteLine(e.Exception.Message);
waitHandle.Set();
};
WorkflowInstance instance = workflowRuntime.CreateWorkflow(typeof(WorkflowConsoleApplication7.Workflow2));
instance.Start();
waitHandle.WaitOne();
}
}
}
}

Sharepoint Workflow

Code Activity
it is a simple workflow to display the "Hello world"


program.cs
using System;
using System.Collections.Generic;
using System.Text;
using System.Threading;
using System.Workflow.Runtime;
using System.Workflow.Runtime.Hosting;
namespace WorkflowConsoleApplication7
{
class Program { static void Main(string[] args)
{
using(WorkflowRuntime workflowRuntime = new WorkflowRuntime())
{
AutoResetEvent waitHandle = new AutoResetEvent(false); workflowRuntime.WorkflowCompleted += delegate(object sender, WorkflowCompletedEventArgs e)
{
waitHandle.Set();
};
workflowRuntime.WorkflowTerminated += delegate(object sender, WorkflowTerminatedEventArgs e) { Console.WriteLine(e.Exception.Message); waitHandle.Set(); };
WorkflowInstance instance = workflowRuntime.CreateWorkflow(typeof(WorkflowConsoleApplication7.Workflow1)); instance.Start();
waitHandle.WaitOne();
}
}
}
}

workflow.cs

using System;

using System.ComponentModel;

using System.ComponentModel.Design;

using System.Collections;

using System.Drawing;

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;
namespace WorkflowConsoleApplication7

{

public sealed partial class Workflow1: SequentialWorkflowActivity

{

public Workflow1()

{

InitializeComponent();

}
private void codeActivity1_ExecuteCode(object sender, EventArgs e) { Console.WriteLine("Hello world");

Console.ReadLine();

}

}
}