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 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;