internal static IOrderedEnumerable <KeyValuePair <DateTime, string> > GetBackupFiles(string output, string db)
{
var retVal = new System.Collections.Generic.Dictionary <DateTime, string>();
var allBackups = new List <string>();
allBackups.AddRange(Directory.GetFiles(output, "*.zip"));
allBackups.AddRange(Directory.GetFiles(output, "*.bak"));
foreach (var bFile in allBackups)
{
if (Regex.IsMatch(Path.GetFileNameWithoutExtension(bFile), string.Format(@"{0}_._\d+", db)))
{
var fDate = Path.GetFileNameWithoutExtension(bFile).Split('_')[Path.GetFileNameWithoutExtension(bFile).Split('_').Length - 1];
var properStr = fDate.Insert(4, "-").Insert(7, "-").Insert(10, " ").Insert(13, ":");
var date = DateTime.MinValue;
if (DateTime.TryParse(properStr, out date) && !retVal.ContainsKey(date))
{
retVal.Add(date, bFile);
}
}
}
return(retVal.OrderByDescending(x => x.Key));
}
/// <summary>
/// 将集合内非空参数值的参数按照参数名ASCII码从小到大排序（字典序），使用URL键值对的格式（即key1=value1&key2=value2…）拼接成字符串stringA
/// </summary>
/// <param name="dictionarys">参数（键值对）字典</param>
/// <param name="isAsc">参数（键值对）字典的主键排序</param>
/// <returns></returns>
public static System.Collections.Generic.Dictionary <string, string> Sort(this System.Collections.Generic.Dictionary <string, string> dictionarys, bool isAsc = true)
{
System.Collections.Generic.Dictionary <string, string> newDictionarys = new System.Collections.Generic.Dictionary <string, string>();
foreach (System.Collections.Generic.KeyValuePair <string, string> item in dictionarys)
{
if (!string.IsNullOrWhiteSpace(item.Key) && !string.IsNullOrWhiteSpace(item.Value))
{
newDictionarys.Add(item.Key, item.Value);
}
}
if (isAsc)
{
return(newDictionarys.OrderBy(o => o.Key).ToDictionary(o => o.Key, p => p.Value)); //将集合内非空参数值的参数按照参数名ASCII码从小到大排序（字典序）
}
else
{
return(newDictionarys.OrderByDescending(o => o.Key).ToDictionary(o => o.Key, p => p.Value)); //将集合内非空参数值的参数按照参数名ASCII码从大到小排序（字典降序）
}
}
