C# 获得；保存文件时出错"；检测到消息（或）System.OutOfMemoryException（或）ContextSwitchDeadlock_C#_Excel

C# 获得；保存文件时出错"；检测到消息（或）System.OutOfMemoryException（或）ContextSwitchDeadlock

c# excel

C# 获得；保存文件时出错"；检测到消息（或）System.OutOfMemoryException（或）ContextSwitchDeadlock,c#,excel,C#,Excel,我用C#开发了一个Windows窗体应用程序应用程序将读取Excel文件，将该值存储到数据表中，进行一些处理，并将处理后的信息写入新的Excel文件写入

我用C#开发了一个Windows窗体应用程序

应用程序将读取Excel文件，将该值存储到数据表中，进行一些处理，并将处理后的信息写入新的Excel文件

写入<400行时没有问题，如果大于400，则应用程序会抛出异常

保存文件时出错

或

系统。检测到OutOfMemoryException

或

ContextSwitchDeadlock

<pre>ExcelWorksheet worksheetToWrite = packageToWrite1.Workbook.Worksheets["Lead Owners"];

     for (int i = 0; i < dtSalesPersonSingleSB.Columns.Count; i++)
     {
       worksheetToWrite.Cells[1, (i + 1)].Value = dtSalesPersonSingleSB.Columns[i].ColumnName; //dtSalesPersonSingle.Columns[i].ColumnName;
     }

     for (int i = 0; i < dtSalesPersonSingleSB.Rows.Count; i++)
     {
     // to do: format datetime values before printing
      for (int j = 0; j < dtSalesPersonSingleSB.Columns.Count; j++)
      {
        worksheetToWrite.Cells[(i + 2), (j + 1)].Value = dtSalesPersonSingleSB.Rows[i][j];
      }
     }
     packageToWrite1.Save();

同时显示以下错误（在visual studio窗口中）：

CLR已经60秒无法从COM上下文0x592b88转换到COM上下文0x592cf8。拥有目标上下文/单元的线程很可能正在执行非泵送等待或在不泵送Windows消息的情况下处理长时间运行的操作。这种情况通常会对性能产生负面影响，甚至可能导致应用程序变得无响应或内存使用量随时间不断累积。为避免此问题，所有单线程单元（STA）线程应使用泵送等待原语（如CoWaitForMultipleHandles），并在长时间运行操作期间定期泵送消息。

worksheetToWrite.Cells["A" + Iteration1].Value = sMailID2.Trim();
worksheetToWrite.Cells["B" + Iteration1].Value = intCurrentBatchSize.ToString();

if (sFull1.Length <= 4000)
{
    worksheetToWrite.Cells["C" + Iteration1].Value = sFull1.Substring(0, sFull1.Length);
    worksheetToWrite.Cells["D" + Iteration1].Value = string.Empty;
    worksheetToWrite.Cells["E" + Iteration1].Value = string.Empty;
    worksheetToWrite.Cells["F" + Iteration1].Value = string.Empty;
    worksheetToWrite.Cells["G" + Iteration1].Value = string.Empty;
    worksheetToWrite.Cells["H" + Iteration1].Value = string.Empty;
    worksheetToWrite.Cells["I" + Iteration1].Value = string.Empty;
    worksheetToWrite.Cells["J" + Iteration1].Value = string.Empty;
    worksheetToWrite.Cells["K" + Iteration1].Value = string.Empty;
    worksheetToWrite.Cells["L" + Iteration1].Value = string.Empty;
}
else if (sFull1.Length > 4000 && sFull1.Length <= 8000)
{
    worksheetToWrite.Cells["C" + Iteration1].Value = sFull1.Substring(0, 4000);
    worksheetToWrite.Cells["D" + Iteration1].Value = sFull1.Substring(4000, sFull1.Length - 4000);
    worksheetToWrite.Cells["E" + Iteration1].Value = string.Empty;
    worksheetToWrite.Cells["F" + Iteration1].Value = string.Empty;
    worksheetToWrite.Cells["G" + Iteration1].Value = string.Empty;
    worksheetToWrite.Cells["H" + Iteration1].Value = string.Empty;
    worksheetToWrite.Cells["I" + Iteration1].Value = string.Empty;
    worksheetToWrite.Cells["J" + Iteration1].Value = string.Empty;
    worksheetToWrite.Cells["K" + Iteration1].Value = string.Empty;
    worksheetToWrite.Cells["L" + Iteration1].Value = string.Empty;
}
else if (sFull1.Length > 8000 && sFull1.Length <= 12000)
{
    worksheetToWrite.Cells["C" + Iteration1].Value = sFull1.Substring(0, 4000);
    worksheetToWrite.Cells["D" + Iteration1].Value = sFull1.Substring(4000, 4000);
    worksheetToWrite.Cells["E" + Iteration1].Value = sFull1.Substring(8000, sFull1.Length - 8000);
    worksheetToWrite.Cells["F" + Iteration1].Value = string.Empty;
    worksheetToWrite.Cells["G" + Iteration1].Value = string.Empty;
    worksheetToWrite.Cells["H" + Iteration1].Value = string.Empty;
    worksheetToWrite.Cells["I" + Iteration1].Value = string.Empty;
    worksheetToWrite.Cells["J" + Iteration1].Value = string.Empty;
    worksheetToWrite.Cells["K" + Iteration1].Value = string.Empty;
    worksheetToWrite.Cells["L" + Iteration1].Value = string.Empty;
}
else if (sFull1.Length > 12000 && sFull1.Length <= 16000)
{
    worksheetToWrite.Cells["C" + Iteration1].Value = sFull1.Substring(0, 4000);
    worksheetToWrite.Cells["D" + Iteration1].Value = sFull1.Substring(4000, 4000);
    worksheetToWrite.Cells["E" + Iteration1].Value = sFull1.Substring(8000, 4000);
    worksheetToWrite.Cells["F" + Iteration1].Value = sFull1.Substring(12000, sFull1.Length - 12000);
    worksheetToWrite.Cells["G" + Iteration1].Value = string.Empty;
    worksheetToWrite.Cells["H" + Iteration1].Value = string.Empty;
    worksheetToWrite.Cells["I" + Iteration1].Value = string.Empty;
    worksheetToWrite.Cells["J" + Iteration1].Value = string.Empty;
    worksheetToWrite.Cells["K" + Iteration1].Value = string.Empty;
    worksheetToWrite.Cells["L" + Iteration1].Value = string.Empty;
}
else if (sFull1.Length > 16000 && sFull1.Length <= 20000)
{
    worksheetToWrite.Cells["C" + Iteration1].Value = sFull1.Substring(0, 4000);
    worksheetToWrite.Cells["D" + Iteration1].Value = sFull1.Substring(4000, 4000);
    worksheetToWrite.Cells["E" + Iteration1].Value = sFull1.Substring(8000, 4000);
    worksheetToWrite.Cells["F" + Iteration1].Value = sFull1.Substring(12000, 4000);
    worksheetToWrite.Cells["G" + Iteration1].Value = sFull1.Substring(16000, sFull1.Length - 16000);
    worksheetToWrite.Cells["H" + Iteration1].Value = string.Empty;
    worksheetToWrite.Cells["I" + Iteration1].Value = string.Empty;
    worksheetToWrite.Cells["J" + Iteration1].Value = string.Empty;
    worksheetToWrite.Cells["K" + Iteration1].Value = string.Empty;
    worksheetToWrite.Cells["L" + Iteration1].Value = string.Empty;
}
else if (sFull1.Length > 20000 && sFull1.Length <= 24000)
{
    worksheetToWrite.Cells["C" + Iteration1].Value = sFull1.Substring(0, 4000);
    worksheetToWrite.Cells["D" + Iteration1].Value = sFull1.Substring(4000, 4000);
    worksheetToWrite.Cells["E" + Iteration1].Value = sFull1.Substring(8000, 4000);
    worksheetToWrite.Cells["F" + Iteration1].Value = sFull1.Substring(12000, 4000);
    worksheetToWrite.Cells["G" + Iteration1].Value = sFull1.Substring(16000, 4000);
    worksheetToWrite.Cells["H" + Iteration1].Value = sFull1.Substring(20000, sFull1.Length - 20000);
    worksheetToWrite.Cells["I" + Iteration1].Value = string.Empty;
    worksheetToWrite.Cells["J" + Iteration1].Value = string.Empty;
    worksheetToWrite.Cells["K" + Iteration1].Value = string.Empty;
    worksheetToWrite.Cells["L" + Iteration1].Value = string.Empty;
}
else if (sFull1.Length > 24000 && sFull1.Length <= 28000)
{
    worksheetToWrite.Cells["C" + Iteration1].Value = sFull1.Substring(0, 4000);
    worksheetToWrite.Cells["D" + Iteration1].Value = sFull1.Substring(4000, 4000);
    worksheetToWrite.Cells["E" + Iteration1].Value = sFull1.Substring(8000, 4000);
    worksheetToWrite.Cells["F" + Iteration1].Value = sFull1.Substring(12000, 4000);
    worksheetToWrite.Cells["G" + Iteration1].Value = sFull1.Substring(16000, 4000);
    worksheetToWrite.Cells["H" + Iteration1].Value = sFull1.Substring(20000, 4000);
    worksheetToWrite.Cells["I" + Iteration1].Value = sFull1.Substring(24000, sFull1.Length - 24000);
    worksheetToWrite.Cells["J" + Iteration1].Value = string.Empty;
    worksheetToWrite.Cells["K" + Iteration1].Value = string.Empty;
    worksheetToWrite.Cells["L" + Iteration1].Value = string.Empty;
}
else if (sFull1.Length > 28000 && sFull1.Length <= 32000)
{
    worksheetToWrite.Cells["C" + Iteration1].Value = sFull1.Substring(0, 4000);
    worksheetToWrite.Cells["D" + Iteration1].Value = sFull1.Substring(4000, 4000);
    worksheetToWrite.Cells["E" + Iteration1].Value = sFull1.Substring(8000, 4000);
    worksheetToWrite.Cells["F" + Iteration1].Value = sFull1.Substring(12000, 4000);
    worksheetToWrite.Cells["G" + Iteration1].Value = sFull1.Substring(16000, 4000);
    worksheetToWrite.Cells["H" + Iteration1].Value = sFull1.Substring(20000, 4000);
    worksheetToWrite.Cells["I" + Iteration1].Value = sFull1.Substring(24000, 4000);
    worksheetToWrite.Cells["J" + Iteration1].Value = sFull1.Substring(28000, sFull1.Length - 28000);
    worksheetToWrite.Cells["K" + Iteration1].Value = string.Empty;
    worksheetToWrite.Cells["L" + Iteration1].Value = string.Empty;
}
else if (sFull1.Length > 32000 && sFull1.Length <= 36000)
{
    worksheetToWrite.Cells["C" + Iteration1].Value = sFull1.Substring(0, 4000);
    worksheetToWrite.Cells["D" + Iteration1].Value = sFull1.Substring(4000, 4000);
    worksheetToWrite.Cells["E" + Iteration1].Value = sFull1.Substring(8000, 4000);
    worksheetToWrite.Cells["F" + Iteration1].Value = sFull1.Substring(12000, 4000);
    worksheetToWrite.Cells["G" + Iteration1].Value = sFull1.Substring(16000, 4000);
    worksheetToWrite.Cells["H" + Iteration1].Value = sFull1.Substring(20000, 4000);
    worksheetToWrite.Cells["I" + Iteration1].Value = sFull1.Substring(24000, 4000);
    worksheetToWrite.Cells["J" + Iteration1].Value = sFull1.Substring(28000, 4000);
    worksheetToWrite.Cells["K" + Iteration1].Value = sFull1.Substring(32000, sFull1.Length - 32000);
    worksheetToWrite.Cells["L" + Iteration1].Value = string.Empty;
}
else if (sFull1.Length > 36000 && sFull1.Length <= 40000)
{
    worksheetToWrite.Cells["C" + Iteration1].Value = sFull1.Substring(0, 4000);
    worksheetToWrite.Cells["D" + Iteration1].Value = sFull1.Substring(4000, 4000);
    worksheetToWrite.Cells["E" + Iteration1].Value = sFull1.Substring(8000, 4000);
    worksheetToWrite.Cells["F" + Iteration1].Value = sFull1.Substring(12000, 4000);
    worksheetToWrite.Cells["G" + Iteration1].Value = sFull1.Substring(16000, 4000);
    worksheetToWrite.Cells["H" + Iteration1].Value = sFull1.Substring(20000, 4000);
    worksheetToWrite.Cells["I" + Iteration1].Value = sFull1.Substring(24000, 4000);
    worksheetToWrite.Cells["J" + Iteration1].Value = sFull1.Substring(28000, 4000);
    worksheetToWrite.Cells["K" + Iteration1].Value = sFull1.Substring(32000, 4000);
    worksheetToWrite.Cells["L" + Iteration1].Value = sFull1.Substring(36000, sFull1.Length - 36000);
}

worksheetToWrite.Cells[“A”+Iteration1].Value=smaild2.Trim（）；
worksheetToWrite.Cells[“B”+Iteration1].Value=intCurrentBatchSize.ToString（）；
如果（sFull1.Length 4000&&sFull1.Length 8000&&sFull1.Length 12000&&sFull1.Length 16000&&sFull1.Length 20000&&sFull1.Length 24000&&sFull1.Length 28000&&sFull1.Length 32000&&sFull1.Length 36000&&sFull1.Length以前我在每次迭代中都保存Excel文件。现在我创建了一个新的数据表，整合了所有信息数据表中的信息（写入Excel）。因此，在写入之前，所有迭代都已在此处完成。在将所有内容写入工作簿后，我将保存它
它现在运行良好，在处理大量数据时没有问题
代码：
ExcelWorksheet worksheetToWrite=packageToWrite1.工作簿.Worksheets[“主要所有者”]；
for（int i=0；i

感谢您的支持，以实现预期结果。
您的数据表是固定行吗？否。我已从Excel中读取多达3500行并将其存储到数据表中。读取时没有问题。错误仅在写入时发生。此外，现在我正在获取System.OutOfMemoryException您可以发布完整的错误消息吗？System.OutOfMemoryException在哪一行？为什么要写string.Empty；
？不能省略这些代码行吗？