public void OpenFile(string filepath)
{
if(File.Exists(filepath))
{
try
{
System.Diagnostics.Process.Start(filepath);
}
catch(System.ComponentModel.Win32Exception ex)
{
if( ex.NativeErrorCode == 1155 ) // 1155 = ERROR_NO_ASSOCIATION
{
const int SEE_MASK_NOCLOSEPROCESS = 64, // 0x00000040
SW_SHOWNORMAL = 1;
Shellexecuteinfo ei = new Shellexecuteinfo();
ei.cbSize = 60; // sizeof(SHELLEXECUTEINFO);
ei.fMask = SEE_MASK_NOCLOSEPROCESS;
ei.lpVerb = "openas";
ei.lpFile = filepath;
ei.nShow = SW_SHOWNORMAL; // 1 = SW_SHOWNORMAL
int result = ShellExecuteEx(ei);
}
}
}
else
MessageBox.Show("File \"" + filepath + "\" not found!", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
public static extern int ShellExecuteEx(Shellexecuteinfo lpExecInfo);
