检索一组具有时间间隔的DateTime值

Question

我需要用时间值填充datagridview中的列，间隔为30分钟。我有开始时间和时间间隔。我尽量使用下面的代码，但它只输出列的每个单元格的开始时间。你能否帮我以30分钟的时间间隔检索所需的时间值。在此先感谢

string line; 
System.IO.StreamReader file = new System.IO.StreamReader("test.txt"); 

     while ((line = file.ReadLine()) != null) 
     { 
       //Reading the line which contains DISKXFER. Eg:"DISKXFER,T0001,0.5,0.0" 
       if (line.Contains("DISKXFER")) 
      { 
       //split the line and insert to an array, Eg: split[0]=DISKXFER 
       string dataLine = line.ToString(); 
       string[] split = dataLine.Split(','); 
       int result = split.Length; 

       //get the date at line 12. The date starts from 9th string and has a length of 11. 
       string lineDate = GetLine(@"test.txt", 12); 
       string getDate=lineDate.Substring(9,11); 

       //get the start time at line 11. The timee starts from 9th string and has a length of 8. 
       string lineTime = GetLine(@"test.txt", 11); 
       string getTime=lineTime.Substring(9,8); 

       //merge date and time 
       DateTime TestTime = DateTime.Parse(getDate + " " + getTime);      


       int n = dataGridView1.Rows.Add(); 
       //split[] has four elements. Add those elements to four columns in the same row and continue with other lines 
       for (int i = 0; i < result; i++) 
       { 
        //add testtimes to the first column 
        dataGridView1.Rows[n].Cells[0].Value = TestTime; 
        TestTime = TestTime.AddMinutes(30); 
        //add split array to other columns in the same row of testtime. Eg: split[0] to column2, split[1] to column3, split[2] to column4, split[3] to column5 
        dataGridView1.Rows[n].Cells[1].Value = split[i];   

       }     

      } 

     } 
     file.Close(); 

感谢您的意见。我会附上我收到我需要 ，我需要的是像这样因为开始时间是上午12时25分

请参考

输出时间值的输出和输出下面给出函数getline方法：

public string GetLine(string fileName, int line) 
    { 
     using (System.IO.StreamReader ssr = new System.IO.StreamReader("test.txt")) 
     { 
      for (int i = 1; i < line; i++) 
       ssr.ReadLine(); 
      return ssr.ReadLine(); 
     } 
    } 

Answer 1

基于关闭您的意见和您所提供的示例行，这应该给你你要找的输出：因此，所有我在这里做的

string line; 
System.IO.StreamReader file = new System.IO.StreamReader("test.txt"); 

//get the date at line 12. The date starts from 9th string and has a length of 11. 
string lineDate = GetLine(@"test.txt", 12); 
string getDate=lineDate.Substring(9,11); 

//get the start time at line 11. The timee starts from 9th string and has a length of 8. 
string lineTime = GetLine(@"test.txt", 11); 
string getTime=lineTime.Substring(9,8); 

//merge date and time 
DateTime TestTime = DateTime.Parse(getDate + " " + getTime); 

while ((line = file.ReadLine()) != null) 
{ 
     //Reading the line which contains DISKXFER. Eg:"DISKXFER,T0001,0.5,0.0" 
     if (line.Contains("DISKXFER")) 
     { 
      //split the line and insert to an array, Eg: split[0]=DISKXFER 
      string dataLine = line.ToString(); 
      string[] split = dataLine.Split(','); 
      int result = split.Length; 

      int n = dataGridView1.Rows.Add(); 
      //split[] has four elements. Add those elements to four columns in the same row and continue with other lines 

      //add testtimes to the first column 
      dataGridView1.Rows[n].Cells[0].Value = TestTime; 
      for (int i = 0; i < result; i++) 
      { 
       //add split array to other columns in the same row of testtime. Eg: split[0] to column2, split[1] to column3, split[2] to column4, split[3] to column5 
       dataGridView1.Rows[n].Cells[i + 1].Value = split[i];   

      } 

      TestTime = TestTime.AddMinutes(30); 
     } 
    } 
file.Close(); 

：移动的初始原料与材料外设置while循环（因为否则你总是会有相同的时间，而不是你说你正在寻找的连续30分钟的增量），移动添加TestTime到for循环之外的列，因为你只需要每次循环执行一次行，然后将您的参考从dataGridView1.Rows[n].Cells[1]更改为dataGridView1.Rows[n].Cells[i + 1]，以便您将其他数据点添加到一排。一旦for循环完成，然后我们添加30分钟并继续到下一行。

Answer 2

你在你的代码的循环：

for (int i = 0; i < result; i++) 
{ 
    dataGridView1.Rows[n].Cells[0].Value = TestTime; 
    TestTime = TestTime.AddMinutes(30); 
    dataGridView1.Rows[n].Cells[1].Value = split[i];   
} 

对于输入行中的每个“分割”，循环体都被执行。但是，不会添加新行，并且在每次迭代中分配相同的两列（0和1）。

从这个问题你想要什么来实现，但你可能需要解决这个循环还不清楚：

• 如果每一个“分裂”应该建立在数据集中，然后新的一行添加此行在循环体中。

• 如果每一个“分裂”应该将数据添加到数据一双新列的设置，你需要使用列索引2*i和2*i + 1，而不是固定的0和1。