title: How to Add Parameters in SQLite C#?
body: <p>I'm using WPF and SQLite, I want to add new Parameters. I tried:</p>
  
  <pre><code>string _search;
  
  private void txtSearchBox_TextChanged(object sender, TextChangedEventArgs e)
  {
      _search = txtSearchBox.Text;
  }
  
  SQLiteConnection sqlite_conn = new SQLiteConnection("Data Source = music.db");
  SQLiteCommand sqlite_cmd = new SQLiteCommand();
  
  private void btn_search_Click(object sender, RoutedEventArgs e)
  {
      sqlite_conn.Open();
      sqlite_cmd = sqlite_conn.CreateCommand();
      sqlite_cmd.CommandText = "select Title from Song where Title=@title";
  
      sqlite_cmd.Parameters.Add("@title",SqlDbType.NVarChar, -1);  // ************ //
  
      sqlite_cmd.Parameters["@title"].Value = _search;
  
  
      DataSet dataSet = new DataSet();
      SQLiteDataAdapter dataAdapter = new SQLiteDataAdapter(sqlite_cmd.CommandText,sqlite_conn);
      dataAdapter.Fill(dataSet);
  
      datagrid.ItemsSource = dataSet.Tables[0].DefaultView;
  }
  </code></pre>
  
  <p>I got error on the line I ticked <code>// ******* //</code>. How can I fix it?</p>