.net 打开文件

 OpenFileDialog^ dlgOpenFile = gcnew OpenFileDialog ();
String^ fileName;
dlgOpenFile->InitialDirectory = "D:\";
dlgOpenFile->Filter = "txt files (*.txt)|*.txt|All files (*.*)|*.*";
dlgOpenFile->FilterIndex = 1;
dlgOpenFile->RestoreDirectory = true ;
dlgOpenFile->ShowDialog();
fileName = dlgOpenFile->FileName;
TB_Path->Text = fileName;