Get Directory Size C#

C# > IO  > FileInfo > Length

Get the size of the file in bytes. 

Example

Get Directory Size C#

public long DirectorySize(DirectoryInfo dir)

{

       long size = 0;

       foreach (FileInfo file in dir.GetFiles())

       {

              size += file.Length;

       }

      foreach (DirectoryInfo directory in dir.GetDirectories())

       {

              size += DirectorySize(directory);

       }

       return size;

 }

DirectoryInfo dir = new DirectoryInfo(@"C:\Temp");

long size = DirectorySize(dir);

C# Capture Screen to PictureBox

C# > Drawing > Capture Screen

Bitmap printscreen = new Bitmap(Screen.PrimaryScreen.Bounds.Width, Screen.PrimaryScreen.Bounds.Height);

Graphics graphics = Graphics.FromImage(printscreen as Image);

graphics.CopyFromScreen(0, 0, 0, 0, printscreen.Size);

using (MemoryStream s = new MemoryStream())

{

printscreen.Save(s, System.Drawing.Imaging.ImageFormat.Bmp);

       picCapture.Size = new System.Drawing.Size(this.Width, this.Height);

       picCapture.Image = Image.FromStream(s);

}

XmlDocument C# Example

C# > XML > XmlDocument

Represents an XML document.

Example

XmlDocument doc = new XmlDocument();

doc.Load(xmlfile);

NetworkChange Class C#

C# > System.Net > NetworkInformation > NetworkChange

Use this class to receive notification when the IP address of a network interface changes.
Changes can appears when:

• disconnect network cable
• out of range of a wireless Local Area Network
• hardware failure

Events:

• NetworkAvailabilityChanged

C# NetworkInformation NameSpace

C# > System.Net > NetworkInformation

Provides access to network address information and traffic data.

Classes

• NetworkChange

ReadAllBytes C# Example

C# > Files > File Class > ReadAllBytes

Opens, reads the contents of the file into a byte array, and then closes the file.

Example

Read bytes from jpg file and display to PictureBox.

var bytes = File.ReadAllBytes("D:\\Pics\\1.jpg");

pictureBox1.Image = Image.FromStream(new System.IO.MemoryStream(bytes));

C# File Class

C# > Files > File Class

Use the File class for:

• copy, move, rename, create, open, delete to a single file at a time. 
• get and set file attributes.

All File methods are static.

Methods

• ReadAllBytes
• OpenText
• AppendText
• Move