將數據傳送到時間範圍

Question

我有一個數據庫是這樣的：

DateAndTime   Column1 Column2 Column3 ... Column85 
============================================================ 
2016-01-01 00:00:10  1  0  0   0 
2016-01-01 00:00:20  1  0  0   1 
2016-01-01 00:00:30  1  1  0   1 
2016-01-01 00:00:40  1  1  0   0 
2016-01-01 00:00:50  0  1  0   0 
2016-01-01 00:01:00  1  0  0   1 
2016-01-01 00:01:10  1  0  0   1 
2016-01-01 00:01:20  1  0  0   0 
2016-01-01 00:01:30  0  0  0   0 
... 
2016-01-11 00:01:30  0  0  0   0 

我使用LINQ檢索數據。

var Data = (from row in db._Data where row.Column86 == X select row).ToList(); 

是否有可能產生的結果輸出是這樣的或類似的：

Column1 
From 2016-01-01 00:00:10 To 2016-01-01 00:00:50 
From 2016-01-01 00:01:00 To 2016-01-01 00:01:30 
Column2 
From 2016-01-01 00:00:30 To 2016-01-01 00:01:00 
... 
Column85 
From 2016-01-01 00:00:20 To 2016-01-01 00:00:40 
From 2016-01-01 00:01:00 To 2016-01-01 00:01:20 

以下是我嘗試代碼：

 bool alarmhistory = false; // Check if there is a true for whole table 
     bool from = false; // If previous 1 is activate 
     bool gotAlarm = false; // Check if there is a true for whole column 

     string RawHtml = ""; 
     string FinalHtml = ""; 

     RawHtml = "<tr><td style='text - align:center; '><b>"; 
     RawHtml += "Column1"; 
     RawHtml += "</b></td></tr>"; 
     RawHtml += "<tr><td>"; 

     for (int x = 0; x < Data.Count ; x++) 
     { 
      if (x == 0 && Data.Count != 1) //First Row 
      { 
       if (Data[x].Column1 == 1) 
       { 
        gotAlarm = true; 
        alarmhistory = true; 
        from = true; // Start the time 
        RawHtml += "From " + Data[x].DateAndTime.ToString("yyyy-MMM-dd hh:mm:ss tt"); 
       } 
      } 
      else if (x == 0 && Data.Count == 1) //First Row but only have 1 record 
      { 
       if (Data[x].Column1 == 1) 
       { 
        gotAlarm = true; 
        alarmhistory = true; 
        from = false; // Only 1 record, meaningless 
        RawHtml += "From " + Data[x].DateAndTime.ToString("yyyy-MMM-dd hh:mm:ss tt"); 
        RawHtml += " To " + Data[x].DateAndTime.ToString("yyyy-MMM-dd hh:mm:ss tt"); 
       } 
      } 
      else if (x == (Data.Count - 1)) //Last Row 
      { 
       if (Data[x].Column1 == 1) 
       { 
        gotAlarm = true; 
        alarmhistory = true; 
        if (from == true) 
        { 
         RawHtml += " To " + Data[x].DateAndTime.ToString("yyyy-MMM-dd hh:mm:ss tt"); 
        } 
        if (from == false) 
        { 
         RawHtml += "From " + Data[x].DateAndTime.ToString("yyyy-MMM-dd hh:mm:ss tt"); 
         RawHtml += " To " + Data[x].DateAndTime.ToString("yyyy-MMM-dd hh:mm:ss tt"); 
        } 
       } 
       if (Data[x].Column1 == 0) 
       { 
        if (from == true) 
        { 
         RawHtml += " To " + Data[x].DateAndTime.ToString("yyyy-MMM-dd hh:mm:ss tt"); 
        } 
       } 
      } 
      else //Others condition 
      { 
       if (Data[x].Column1 == 1) 
       { 
        gotAlarm = true; 
        alarmhistory = true; 
        if (from == false) // If previous is 0 
        { 
         RawHtml += "From " + Data[x].DateAndTime.ToString("yyyy-MMM-dd hh:mm:ss tt"); 
         from = true; // Start the time 
        } 
       } 
       if (Data[x].Column1 == 0) 
       { 
        if (from == true) // If previous is 1 
        { 
         RawHtml += " To " + Data[x].DateAndTime.ToString("yyyy-MMM-dd hh:mm:ss tt"); 
         RawHtml += "<br />"; 
         from = false; //End the time 
        } 
       } 
      } 
     } 

     RawHtml += "</td></tr>"; 

     if (gotAlarm == true) 
     { 
      FinalHtml += RawHtml; 
     } 

     RawHtml = ""; 
     gotAlarm = false; 
     from = false; 

之後，我將重複和更改Column1到Column2。但是我認爲Column16之後系統會堆棧溢出。

Answer 1

試試這個

using System; 
using System.Collections.Generic; 
using System.Linq; 
using System.Text; 
using System.Data; 

namespace ConsoleApplication29 
{ 
    class Program 
    { 
     static void Main(string[] args) 
     { 

      DataTable dt = new DataTable(); 
      dt.Columns.Add("DateAndTime", typeof(DateTime)); 
      dt.Columns.Add("Column1", typeof(int)); 
      dt.Columns.Add("Column2", typeof(int)); 
      dt.Columns.Add("Column3", typeof(int)); 
      dt.Columns.Add("Column4", typeof(int)); 

      dt.Rows.Add(new object[] { DateTime.Parse("2016-01-01 00:00:10"), 1, 0, 0, 0 }); 
      dt.Rows.Add(new object[] { DateTime.Parse("2016-01-01 00:00:20"), 1, 0, 0, 1 }); 
      dt.Rows.Add(new object[] { DateTime.Parse("2016-01-01 00:00:30"), 1, 1, 0, 1 }); 
      dt.Rows.Add(new object[] { DateTime.Parse("2016-01-01 00:00:40"), 1, 1, 0, 0 }); 
      dt.Rows.Add(new object[] { DateTime.Parse("2016-01-01 00:00:50"), 0, 1, 0, 0 }); 
      dt.Rows.Add(new object[] { DateTime.Parse("2016-01-01 00:01:00"), 1, 0, 0, 1 }); 
      dt.Rows.Add(new object[] { DateTime.Parse("2016-01-01 00:01:10"), 1, 0, 0, 1 }); 
      dt.Rows.Add(new object[] { DateTime.Parse("2016-01-01 00:01:20"), 1, 0, 0, 0 }); 
      dt.Rows.Add(new object[] { DateTime.Parse("2016-01-01 00:01:30"), 0, 0, 0, 0 }); 
      dt.Rows.Add(new object[] { DateTime.Parse("2016-01-01 00:01:30"), 0, 0, 0, 0 }); 

      for (int colIndex = 1; colIndex <= dt.Columns.Count - 1; colIndex++) 
      { 
       List<List<DateTime>> results = GetRanges("Column" + colIndex.ToString(), dt); 
       if (results != null) 
       { 
        Console.WriteLine("Column" + colIndex.ToString()); 
        foreach (List<DateTime> result in results) 
        { 
         Console.WriteLine("From {0} To {1}", result[0].ToString(), result[1].ToString()); 
        } 
       } 

      } 
      Console.ReadLine(); 
     } 
     static List<List<DateTime>> GetRanges(string colName, DataTable dt) 
     { 
      List<List<DateTime>> results = new List<List<DateTime>>(); 
      List<DateTime> newResult = null; 
      Boolean foundStart = false; 

      foreach (DataRow row in dt.AsEnumerable()) 
      { 
       int state = (int)row[colName]; 
       if (!foundStart) 
       { 
        if (state == 1) 
        { 
         //add start time 
         newResult = new List<DateTime>(); 
         results.Add(newResult); 
         //add date as both start and end incase there is only one item 
         newResult.Add((DateTime)row["DateAndTime"]); 
         newResult.Add((DateTime)row["DateAndTime"]); 
         foundStart = true; 
        } 
       } 
       else 
       { 
        if (state == 0) 
        { 
         foundStart = false; 
        } 
        else 
        { 
         newResult[1] = (DateTime)row["DateAndTime"]; 
        } 


       } 
      } 
      if (results.Count == 0) 
       return null; 
      else 
       return results; 
     } 
    } 
}