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WebUtility.UrlDecodeToBytes Method

.NET Framework 4.5

Converts an encoded byte array that has been encoded for transmission in a URL into a decoded byte array.

Namespace:  System.Net
Assembly:  System (in System.dll)

public static byte[] UrlDecodeToBytes(
	byte[] encodedValue,
	int offset,
	int count
)

Parameters

encodedValue
Type: System.Byte[]

A URL-encoded Byte array to decode.

offset
Type: System.Int32

The offset, in bytes, from the start of the Byte array to decode.

count
Type: System.Int32

The count, in bytes, to decode from the Byte array.

Return Value

Type: System.Byte[]
Returns Byte.
A decoded Byte array.

If characters such as blanks and punctuation are passed in an HTTP stream, they might be misinterpreted at the receiving end. URL encoding converts characters that are not allowed in a URL into equivalent hexadecimal escape sequences. The UrlEncodeToBytes method creates a URL-encoded byte array.

URL decoding replaces hexadecimal escape sequences with corresponding ASCII character equivalents. For example, when embedded in a block of URL-encoded text, the escape sequences %3c and %3e are decoded into the characters < and >.

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5

.NET for Windows Store apps

Supported in: Windows 8

.NET for Windows Phone apps

Supported in: Windows Phone 8.1, Windows Phone 8, Silverlight 8.1

Windows Phone 8.1, Windows Phone 8, Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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