比较字符串
例子,当遇到A1 A10 A2 order by 不起作用了
需要自己写
public class StringCompare<T> : IComparer<T> where T : T_TempActicle { //比较两个字符串,如果含用数字,则数字按数字的大小来比较。 int IComparer<T>.Compare(T x, T y) { if (x == null || y == null) throw new ArgumentException("Parameters can't be null"); string fileA = x.Title as string; string fileB = y.Title as string; char[] arr1 = fileA.ToCharArray(); char[] arr2 = fileB.ToCharArray(); int i = 0, j = 0; while (i < arr1.Length && j < arr2.Length) { if (char.IsDigit(arr1[i]) && char.IsDigit(arr2[j])) { string s1 = "", s2 = ""; while (i < arr1.Length && char.IsDigit(arr1[i])) { s1 += arr1[i]; i++; } while (j < arr2.Length && char.IsDigit(arr2[j])) { s2 += arr2[j]; j++; } try { if (Int64.Parse(s1) > Int64.Parse(s2)) { return 1; } if (Int64.Parse(s1) < Int64.Parse(s2)) { return -1; } } catch { return 1; } } else { if (arr1[i] > arr2[j]) { return 1; } if (arr1[i] < arr2[j]) { return -1; } i++; j++; } } if (arr1.Length == arr2.Length) { return 0; } else { return arr1.Length > arr2.Length ? 1 : -1; } } } public class T_TempActicle { public Guid ID { get; set; } public string Title { get; set; } }