C#打开文件夹并定位到指定的文件

public void PositionFile(string sFileFullName)
{
if (!System.IO.File.Exists(sFileFullName)) return;

System.Diagnostics.ProcessStartInfo psi = new System.Diagnostics.ProcessStartInfo("Explorer.exe");
//string file = @"c:/windows/notepad.exe";
psi.Arguments = " /select," + sFileFullName;
System.Diagnostics.Process.Start(psi);
}