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using(OleDbConnection conn = new OleDbConnection(Properties.Settings.Default.urlRecordConnectionString))
  {
  try
  {
  string sql = "insert into view(url) values(" + this.toolStripComboBoxUrl.Text + ")";
  OleDbCommand cmd = new OleDbCommand(sql, conn);
  conn.Open();
  int n = cmd.ExecuteNonQuery();
  }
  catch (Exception err)
  {
  MessageBox.Show("view:" + err.Message);
  }
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string sql = "insert into view (url) values('" + this.toolStripComboBoxUrl.Text + "')";

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string sql = "insert into view (url) values('" + this.toolStripComboBoxUrl.Text + "')";

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string sql = "insert into [view]([url]) values('&quo