请问怎么用。net把路径转换成dos的路径

Question

因为dos不支持长文件名，有什么方法能把一个长文件名转成dos支持的文件名模式
谢谢了

Answer 1

using System;
using System.Text;
using System.Runtime.InteropServices;namespace ShellPathNameConvert
{
    /**//// <summary>
    /// Converts file and directory paths to their respective
    /// long and short name versions.
    /// </summary>
    /// <res>This class uses InteropServices to call GetLongPathName and GetShortPathName</res>
    public class Convert
    {
        [DllImport("kernel32.dll")]
        static extern uint GetLongPathName(string shortname, StringBuilder
            longnamebuff, uint buffersize);        [DllImport("kernel32.dll", CharSet = CharSet.Auto)]
        public static extern int GetShortPathName(
            [MarshalAs(UnmanagedType.LPTStr)]
            string path,
            [MarshalAs(UnmanagedType.LPTStr)]
            StringBuilder shortPath,
            int shortPathLength);        /**//// <summary>
        /// The ToShortPathNameToLongPathName function retrieves the long path form of a specified short input path
        /// </summary>
        /// <param name="shortName">The short name path</param>
        /// <returns>A long name path string</returns>
        public static string ToLongPathName(string shortName)
        {
            StringBuilder longNameBuffer = new StringBuilder(256);
            uint bufferSize = (uint)longNameBuffer.Capacity;            GetLongPathName(shortName, longNameBuffer, bufferSize);            return longNameBuffer.ToString();
        }        /**//// <summary>
        /// The ToLongPathNameToShortPathName function retrieves the short path form of a specified long input path
        /// </summary>
        /// <param name="longName">The long name path</param>
        /// <returns>A short name path string</returns>
        public static string ToShortPathName(string longName)
        {
            StringBuilder shortNameBuffer = new StringBuilder(256);
            int bufferSize = shortNameBuffer.Capacity;            int result = GetShortPathName(longName, shortNameBuffer, bufferSize);            return shortNameBuffer.ToString();
        }
    }
}

Answer 2

运行结果：
Current directory:
D:\Documents and Settings\Administrator\桌面\ShellPathNameConvert\ShellPathNameC
onvertTest\bin\DebugShort path name:
D:\DOCUME~1\ADMINI~1\桌面\SHELLP~1\SHELLP~2\bin\DebugLong path name:
D:\Documents and Settings\Administrator\桌面\ShellPathNameConvert\ShellPathNameC
onvertTest\bin\Debug