C#使用后关闭Excel
我在应用程序中使用Excel作为Com对象。这里有一个代码示例C#使用后关闭Excel,c#,excel,C#,Excel,我在应用程序中使用Excel作为Com对象。这里有一个代码示例 public void LoadData() { LogHandler logHandler = new LogHandler(Path.GetDirectoryName(FileName) + "\\logfile.log"); string OKATO = GetOKATOFromFileName(); int SubjectId; if (!int
public void LoadData()
{
LogHandler logHandler = new LogHandler(Path.GetDirectoryName(FileName) + "\\logfile.log");
string OKATO = GetOKATOFromFileName();
int SubjectId;
if (!int.TryParse(OKATO, out SubjectId))
{
logHandler.WriteLogStr("Ошибка определения ОКАТО из имени файла (" + FileName + ")");
return;
}
int CL;
DateTime FDate = GetDateFromFileName(out CL);
Excel.Application excelApp = new Excel.Application();
Excel.Workbook excelWorkbook = excelApp.Workbooks.Open(FileName,
0, false, 5, "", "", false, Excel.XlPlatform.xlWindows, "",
true, false, 0, true, false, false);
try
{
Excel.Sheets excelSheets = excelWorkbook.Worksheets;
for (int i = 1; i <= excelSheets.Count; i++)
{
Excel.Worksheet excelWorksheet = (Excel.Worksheet)excelSheets.get_Item(i);
LoadDataFromSheet(excelWorksheet, SubjectId, CL, FDate);
System.Runtime.InteropServices.Marshal.ReleaseComObject(excelWorksheet);
}
System.Runtime.InteropServices.Marshal.ReleaseComObject(excelSheets);
}
catch (Exception le)
{
logHandler.WriteLogStr(le.Message);
}
finally
{
excelWorkbook.Close(0);
excelApp.Quit();
System.Runtime.InteropServices.Marshal.ReleaseComObject(excelWorkbook);
System.Runtime.InteropServices.Marshal.ReleaseComObject(excelApp);
}
}
但事实并非如此。直到程序关闭,Excel才存在于内存中。它只有在关闭我的应用程序后才会退出
如何在关闭应用程序之前关闭Excel进程
p、 我读过这个话题,但没有一个建议适合我
处理完对象后,使用
GC.Collect();
这是我处理Excel对象的方式
private void releaseObject(object obj)
{
try
{
System.Runtime.InteropServices.Marshal.ReleaseComObject(obj);
obj = null;
}
catch (Exception ex)
{
obj = null;
MessageBox.Show("Exception Occured while releasing object " + ex.ToString());
}
finally
{
GC.Collect();
}
}
这是否有帮助:您是否使用了这一行
System.Runtime.InteropServices.Marshal.ReleaseComObject(您的comObject)
对于您正在创建的所有对象,例如Excel工作簿、Excel应用程序等。我已为所有com变量添加了Marshal.ReleaseComObject,但Excel仍在内存中。在问题代码示例中进行了更改如果任何对象都不起作用,请使用kill process。检查此URL:
private void releaseObject(object obj)
{
try
{
System.Runtime.InteropServices.Marshal.ReleaseComObject(obj);
obj = null;
}
catch (Exception ex)
{
obj = null;
MessageBox.Show("Exception Occured while releasing object " + ex.ToString());
}
finally
{
GC.Collect();
}
}