C # _ conversion between Chinese characters and GBK, Unicode, UTF-8 Encoding

IT development so far, many character encoding versions, currently popular GBK, Unicode, UTF-8 encoding and conversion of Chinese characters can be as follows Code : Private Void Button#click ( Object Sender, eventargs E)
{
// Convert Chinese characters to unicode encoding:
String Hz = textbox1.text. tostring ();
Byte [] B = encoding. Unicode. getbytes (HZ );
String O = "" ;
Foreach ( VaR X In B ){
O + = String . Format ( " {0: X2} " , X) + "   " ;
}
Textbox2.text = O;
}

Private Void Button2_click (Object Sender, eventargs E)
{
// Convert unicode encoding to Chinese characters:
String Cd = textbox2.text. tostring ();
String CD2 = CD. Replace ( "   " , "" );
CD2 = cd2.replace ( " \ R " , "" );
CD2 = cd2.replace ( " \ N " , "" );
CD2 = cd2.replace ( " \ R \ n " , "" );
CD2 = cd2.replace ( " \ T " , "" );
If (Cd2.length % 4 ! = 0 )
{
MessageBox. Show ( " Unicode encoding is double-byte. Please delete more or add less! Make sure it is a multiple of two. " );
}
Else
{
Int Len = cd2.length/ 2 ;
Byte [] B = New Byte [Len];
For (Int I = 0 ; I <cd2.length; I + = 2 )
{
String Bi = cd2.substring (I, 2 );
B [I/ 2 ] = (Byte ) Convert. toint32 (Bi, 16 );
}
String O = encoding. Unicode. getstring (B );
Textbox1.text = O;
}
}

Private Void Button5_click ( Object Sender, eventargs E)
{
// Convert Chinese characters to GBK hexadecimal codes:
String Hz = textbox3.text. tostring ();
Byte [] GBK = encoding. getencoding (" GBK " ). Getbytes (HZ );
String S1 = "" ; String S1d = "" ;
Foreach ( Byte B In GBK ){
// S1 + = convert. tostring (B, 16) + "";
S1 + = String . Format ( " {0: X2} " , B) + "   " ;
S1d + = B + "   " ;
Tooltip1.settooltip (textbox4, s1d );
}
Textbox4.text = S1;
Tooltip1.settooltip (textbox4, s1d );
// Convert Chinese characters to Unicode hexadecimal codes:
Byte [] UC = encoding. Unicode. getbytes (HZ );
String S2 = "" ; String S2d = "" ;
Foreach ( Byte B In UC)
{
// S2 + = convert. tostring (B, 16) + "";
S2 + = String . Format ( " {0: X2} " , B) + "   " ;
S2d + = B + "   " ;
Tooltip1.settooltip (textbox5, s2d );
}
Textbox5.text = S2;
Tooltip1.settooltip (textbox5, s2d );
// Chinese characters into UTF-8 hexadecimal code:
Byte [] Utf8 = encoding. utf8.getbytes (HZ );
String S3 = "" ; String S3d = "" ;
Foreach ( Byte B In Utf8)
{
// S3 + = convert. tostring (B, 16) + "";
S3 + = String . Format ( " {0: X2} " , B) + "   " ;
S3d + = B + "   " ;
Tooltip1.settooltip (textbox6, s3d );
}
Textbox6.text = S3;
Tooltip1.settooltip (textbox6, s3d );
}

Private Void Button6_click ( Object Sender, eventargs E)
{ // GBK hexadecimal code is converted into Chinese characters:
String Cd = textbox4.text. tostring ();
String [] B4 = CD. Split ( '   ' );
Byte [] BS = New Byte [ 2 ];
BS [ 0 ] = ( Byte ) Convert. tobyte (B4 [ 0 ], 16 );
BS [ 1 ] = (Byte ) Convert. tobyte (B4 [ 1 ], 16 );
Textbox3.text = encoding. getencoding ( " GBK " ). Getstring (BS );
}

Private Void Button7_click ( Object Sender, eventargs E)
{ // Unicode hexadecimal code to Chinese characters:
String Cd = textbox5.text. tostring ();
String [] B5 = CD. Split ( '   ' );
Byte [] BS = New Byte [ 2 ];
BS [ 0 ] = ( Byte ) Convert. tobyte (B5 [ 0 ], 16 );
BS [ 1 ] = ( Byte ) Convert. tobyte (B5 [ 1 ], 16 );
Textbox3.text = encoding. getencoding ( " Unicode " ). Getstring (BS );
}

Private Void Button8_click ( Object Sender, eventargs E)
{ // UTF-8 hexadecimal code converted into Chinese Characters:
String Cd = textbox6.text. tostring ();
String [] B6 = CD. Split ( '   ' );
Byte [] BS = New Byte [ 3 ];
BS [ 0 ] = ( Byte ) Convert. tobyte (B6 [ 0 ], 16 );
BS [ 1 ] = ( Byte ) Convert. tobyte (B6 [ 1 ], 16 );
BS [ 2 ] = ( Byte ) Convert. tobyte (B6 [ 2 ], 16 );
Textbox3.text = encoding. getencoding ( " UTF-8 " ). Getstring (BS );
}

URL: http://greatverve.cnblogs.com/archive/2012/03/02/csharp-gbk-unicode-utf-8.html