/// <summary>
/// 用于启动查找文件的过程
/// </summary>
private void searchFiles(String Location, long fileLength)
{
DirectoryInfo dir = null;
List <FileInfo> files = null;
FoundFile foundFile = null;
try
{
dir = new DirectoryInfo(Location);
Dispatcher.Invoke(showInfo, Location);
if (cts.IsCancellationRequested)
{
//Dispatcher.Invoke(EnableSearchButton, true);
return;
}
//启动并行查找
var query = (from file in dir.GetFiles("*.*", SearchOption.TopDirectoryOnly).AsParallel()
where file.Length >= fileLength
select file).WithCancellation(cts.Token);
files = query.ToList();
//更新显示
if (files != null)
{
foreach (var item in files)
{
//如果收到取消请求
if (cts.IsCancellationRequested)
{
//Dispatcher.Invoke(showInfo, "搜索已取消");
//Dispatcher.Invoke(EnableSearchButton, true);
return;
}
foundFile = new FoundFile()
{
Name = item.Name,
Length = item.Length,
Location = item.DirectoryName
};
Action <FoundFile> addFileDelegate = (file) =>
{
FoundFiles.Add(file);
};
Dispatcher.BeginInvoke(addFileDelegate, foundFile);
}
}
//递归查找每个子文件夹
foreach (var directory in dir.GetDirectories())
{
searchFiles(directory.FullName, fileLength);
}
}
catch (UnauthorizedAccessException ex)
{
Dispatcher.Invoke(showInfo, dir.Name + "无权限访问");
}
}
/// <summary>
/// 用于启动查找文件的过程
/// </summary>
private void searchFiles(String Location, long fileLength)
{
DirectoryInfo dir = null;
List<FileInfo> files = null;
FoundFile foundFile = null;
try
{
dir = new DirectoryInfo(Location);
Dispatcher.Invoke(showInfo, Location);
if (cts.IsCancellationRequested)
{
//Dispatcher.Invoke(EnableSearchButton, true);
return;
}
//启动并行查找
var query = (from file in dir.GetFiles("*.*", SearchOption.TopDirectoryOnly).AsParallel()
where file.Length >= fileLength
select file).WithCancellation(cts.Token);
files = query.ToList();
//更新显示
if (files != null)
{
foreach (var item in files)
{
//如果收到取消请求
if (cts.IsCancellationRequested)
{
//Dispatcher.Invoke(showInfo, "搜索已取消");
//Dispatcher.Invoke(EnableSearchButton, true);
return;
}
foundFile = new FoundFile()
{
Name = item.Name,
Length = item.Length,
Location = item.DirectoryName
};
Action<FoundFile> addFileDelegate = (file) =>
{
FoundFiles.Add(file);
};
Dispatcher.BeginInvoke(addFileDelegate, foundFile);
}
}
//递归查找每个子文件夹
foreach (var directory in dir.GetDirectories())
{
searchFiles(directory.FullName, fileLength);
}
}
catch (UnauthorizedAccessException ex)
{
Dispatcher.Invoke(showInfo, dir.Name + "无权限访问");
}
}