How to use OpenFileDialog c# windows form

Question

How to use OpenFileDialog c# windows form

Answer

using (var openFileDialog = new OpenFileDialog())
{
    openFileDialog.InitialDirectory = @\"d:\\\";
    openFileDialog.RestoreDirectory = true;
    openFileDialog.Title = \"Select PDF File\";
    openFileDialog.DefaultExt = \"pdf\";
    openFileDialog.Filter = \"pdf files (*.pdf)|*.pdf|All files (*.*)|*.*\";
    openFileDialog.FilterIndex = 0;
    openFileDialog.Multiselect = false;
    openFileDialog.CheckFileExists = true;
    openFileDialog.CheckPathExists = true;
    openFileDialog.ShowDialog();

    txtFolderPath.Text = openFileDialog.FileName;
             
}