/// <summary>将日志信息转化为字符串。</summary>
/// <param name="usnCurrentJournalState">当前日志信息</param>
/// <returns></returns>
private string[] FormatUsnJournalState(USN_JOURNAL_DATA usnCurrentJournalState)
{
List <string> list = new List <string>(8);
list.Add(string.Format("日志ID: {0}", usnCurrentJournalState.UsnJournalID.ToString("X")));
list.Add(string.Format("第一个USN: {0}", usnCurrentJournalState.FirstUsn.ToString("X")));
list.Add(string.Format("下一个USN: {0}", usnCurrentJournalState.NextUsn.ToString("X")));
list.Add(string.Empty);
list.Add(string.Format("最小有效USN: {0}", usnCurrentJournalState.LowestValidUsn.ToString("X")));
list.Add(string.Format("最大USN: {0}", usnCurrentJournalState.MaxUsn.ToString("X")));
list.Add(string.Format("最大体积: {0}", usnCurrentJournalState.MaximumSize.ToString("X")));
list.Add(string.Format("单次增长体积: {0}", usnCurrentJournalState.AllocationDelta.ToString("X")));
return(list.ToArray());
}
private void btnQueryUsnJournal_Click(object sender, EventArgs e)
{
lbResults.DataSource = null;
lbResults.Items.Clear();
USN_JOURNAL_DATA journalState = new USN_JOURNAL_DATA();
NtfsUsnJournal.UsnJournalReturnCode rtn = _usnJournal.GetUsnJournalState(ref journalState);
lblElapsedTime.Visible = true;
lblElapsedTime.Text = string.Format("执行用时：{0}ms", NtfsUsnJournal.ElapsedTime.Milliseconds.ToString());
lblListCount.Text = string.Empty;
if (rtn == NtfsUsnJournal.UsnJournalReturnCode.USN_JOURNAL_SUCCESS)
{
lbResults.Items.AddRange(FormatUsnJournalState(journalState));
}
else
{
lbResults.Items.Add(string.Format("{0} 执行失败！错误码: {1}。", "GetUsnJournalState()", rtn.ToString()));
}
}