C#文件操作
using System;using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
using System.IO;
public partial class _Default : System.Web.UI.Page
{
private bool bExist;
protected void Page_Load(object sender, EventArgs e)
{
}
protected void Button1_Click(object sender, EventArgs e)
{
try
{
if (tbInput.Text.Trim() == "")
{
tbInput.Text = "不存在此文件!";
return;
}
string[] drives = System.IO.Directory.GetLogicalDrives();
foreach (string str in drives)
{
if (ProcessDirectory(str))
break;
}
if (!bExist)
tbInput.Text = "不存在此文件!";
}
catch (System.IO.IOException)
{
Response.Write("I/O错误！");
}
catch (System.Security.SecurityException)
{
Response.Write("没有访问权限！");
}
}
public bool ProcessDirectory(string targetDirectory)
{
try
{
// Process the list of files found in the directory
string[] fileEntries = Directory.GetFiles(targetDirectory);
foreach (string fileName in fileEntries)
{
if (ProcessFile(fileName))
return true;
}
// Recurse into subdirectories of this directory
string[] subdirectoryEntries = Directory.GetDirectories(targetDirectory);
foreach (string subdirectory in subdirectoryEntries)
{
if (ProcessDirectory(subdirectory))
return true;
}
return false;
}
catch(Exception)
{
return false;
}
}
public bool ProcessFile(string strFileName)
{
if (Path.GetFileName(strFileName).ToLower() == tbInput.Text.Trim().ToLower())
{
tbInput.Text = strFileName.ToLower();
bExist = true;
return true;
}
else
return false;
}
}
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