Convert a String to a byte Array
The Array class provides methods for creating, manipulating, searching, and sorting arrays. The Array class is not part of the System.Collections namespaces. However, it is still considered a collection because it is based on the IList interface. An element is a value in an Array. The length of an Array is the total number of elements it can contain. The Array has a fixed capacity.
The following .net c# tutorial code demonstrates how we can convert a String to a byte Array. That means we will get a byte Array instance from a String object. In this .net c# example code, we will use ASCII encoding and the Encoding class GetBytes() method.
The Encoding class represents the character encoding. Encoding is the process of transforming a set of Unicode characters into a sequence of bytes and decoding is the process of transforming a sequence of encoded bytes into a set of Unicode characters.
The Encoding ASCII property gets an encoding for the ASCII (7-bit) character set. The Encoding GetBytes() method when overridden in a derived class, encodes a set of characters into a sequence of bytes. The Encoding GetBytes(String) method overload when overridden in a derived class, encodes all the characters in the specified string into a sequence of bytes.
The GetBytes(string s) method’s s parameter value is the String containing the characters to encode. This method returns a byte array containing the results of encoding the specified set of characters. So using this Encoding GetBytes(String) method we can convert a String object to a byte Array.
The following .net c# tutorial code demonstrates how we can convert a String to a byte Array. That means we will get a byte Array instance from a String object. In this .net c# example code, we will use ASCII encoding and the Encoding class GetBytes() method.
The Encoding class represents the character encoding. Encoding is the process of transforming a set of Unicode characters into a sequence of bytes and decoding is the process of transforming a sequence of encoded bytes into a set of Unicode characters.
The Encoding ASCII property gets an encoding for the ASCII (7-bit) character set. The Encoding GetBytes() method when overridden in a derived class, encodes a set of characters into a sequence of bytes. The Encoding GetBytes(String) method overload when overridden in a derived class, encodes all the characters in the specified string into a sequence of bytes.
The GetBytes(string s) method’s s parameter value is the String containing the characters to encode. This method returns a byte array containing the results of encoding the specified set of characters. So using this Encoding GetBytes(String) method we can convert a String object to a byte Array.
convert-string-to-byte-array.aspx
<%@ Page Language="C#" AutoEventWireup="true"%>
<!DOCTYPE html>
<script runat="server">
protected void Button1_Click(object sender, System.EventArgs e)
{
const string txt = "array examples";
byte[] bytearray = Encoding.ASCII.GetBytes(txt);
Label1.Text = "";
foreach(byte b in bytearray)
{
Label1.Text += b + " = " + Convert.ToChar(b).ToString()+ "<br />";
}
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
<title>c# example - convert string to byte array</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<h2 style="color:DarkBlue; font-style:italic;">
c# example - convert string to byte array
</h2>
<hr width="550" align="left" color="LightBlue" />
<asp:Label
ID="Label1"
runat="server"
Font-Size="Large"
>
</asp:Label>
<br />
<asp:Button
ID="Button1"
runat="server"
Text="convert string to byte array"
OnClick="Button1_Click"
Height="40"
Font-Bold="true"
/>
</div>
</form>
</body>
</html>
