This method is used to simulate the VBScript DateDiff Function. It is in Beta right now.
| I have not yet implemented all of the parameters to the method, just the more commone ones
| If you find any problems please email me with a description of the issue.
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| | 0. |
| | 1. | /// <summary> | | 2. | /// same common params as the VBScript DateDiff: http://msdn.microsoft.com/library/default.asp?url=/library/en-us/script56/html/vsfctdatediff.asp | | 3. | /// /*Sample Code: | | 4. | /// * System.DateTime dt1 = new System.DateTime(1974,12,16); | | 5. | /// * System.DateTime dt2 = new System.DateTime(1973,12,16); | | 6. | /// * Page.Response.Write(Convert.ToString(DateDiff("t", dt1, dt2))); | | 7. | /// * */ | | 8. | /// </summary> | | 9. | /// <param name="howtocompare"></param> | | 10. | /// <param name="startDate"></param> | | 11. | /// <param name="endDate"></param> | | 12. | /// <returns></returns> | | 13. | private double DateDiff(string howtocompare, System.DateTime startDate, System.DateTime endDate) { | | 14. | double diff=0; | | 15. | try { | | 16. | System.TimeSpan TS = new System.TimeSpan(startDate.Ticks-endDate.Ticks); | | 17. | #region converstion options | | 18. | switch (howtocompare.ToLower()) { | | 19. | case "m": | | 20. | diff = Convert.ToDouble(TS.TotalMinutes); | | 21. | break; | | 22. | case "s": | | 23. | diff = Convert.ToDouble(TS.TotalSeconds); | | 24. | break; | | 25. | case "t": | | 26. | diff = Convert.ToDouble(TS.Ticks); | | 27. | break; | | 28. | case "mm": | | 29. | diff = Convert.ToDouble(TS.TotalMilliseconds); | | 30. | break; | | 31. | case "yyyy": | | 32. | diff = Convert.ToDouble(TS.TotalDays/365); | | 33. | break; | | 34. | case "q": | | 35. | diff = Convert.ToDouble((TS.TotalDays/365)/4); | | 36. | break; | | 37. | default: | | 38. | //d | | 39. | diff = Convert.ToDouble(TS.TotalDays); | | 40. | break; | | 41. | } | | 42. | #endregion | | 43. | } catch(Exception e) { | | 44. | diff = -1; | | 45. | } | | 46. | return diff; | | 47. | } | | 48. |
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References:
| VBScript DateDiff Function
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| Copy Source: |
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