Chinese characters in C # are calculated as 2 characters

In the current project, the length of the string is computed and the fixed-length character is truncated, in which the Chinese character is calculated in 2 characters, the number and the letter are calculated in 1 characters, and no ready-made functions can be used to refer to how to get the exact length of a string of characters and letters (asp.net version) Http://www.webjx.com/htmldata/2005-10-20/1129777793.html

The reference is written with the following two functions, the main function of which is to take the copy string at a specified length instead of sub

The function of string.

Private
int GetLength (String aorgstr)
{
Int
Intlen=aorgstr.length;
　　
int i;
　　
Char[]
chars = Aorgstr.tochararray ();
For (I=0;i<chars. length;i++)
{
if (System.Convert.ToInt32 (Chars[i]) >255)
{
intlen++;
}
}
Return
Intlen;
}
private string Mutisubstring (string aorgstr, int alength, ref string aafterstr)
{
Int
Intlen = Aorgstr.length;
　　
int start = 0;
　　
int end =
Intlen;
　　
int single = 0;
　　
Char[]
chars = Aorgstr.tochararray ();
for (int i=0;
i<
Chars. Length;
i++)
{
if (System.Convert.ToInt32 (Chars[i]) >255)
{
start = 2;
}
Else
{
start = 1;
Single + +;
}
if (Start >= alength)
{
If (end% 2 = 0)
{
if (single% 2 = 0)
{
end = I+1;
}
Else
{
end = i;
}
}
Else
{
end = I+1;
}
break;
}
}
　　
String temp = Aorgstr.sub
String (0, end);
　　
String temp2 = Aorgstr.remove (0,end);
Aafterstr = Temp2;
return temp;
}
Run Result:

str = MutiSubString( "abc汉字字符",　5 , aAfterStr )
str = "abc汉"
aAfterStr ="字字符"

has been and has been using STR for a long time. Length the problem of using Chinese characters as a character