我在C#中使用COM Excel應用程序類。我處理了WorkbookBeforeClose
。但是現在我無法正確釋放COM對象。如何在.NET中處理事件時釋放所有COM對象
請注意,我在處理此事件之前設法正確地釋放了COM對象,並且在註釋該部分代碼時,我的應用程序正常工作。
哪些COM對象沒有從內存中釋放,以及如何正確釋放它?
編輯: 我做了什麼:
public void Init()
{
...
application = new Excel.Application();
application.WorkbookBeforeClose += new Excel.AppEvents_WorkbookBeforeCloseEventHandler(application_WorkbookBeforeClose);
}
...
void application_WorkbookBeforeClose(Excel.Workbook Wb, ref bool Cancel)
{
if (WorkbookBeforeClose != null)
{
ExcelCloseEventArgs args = new ExcelCloseEventArgs();
WorkbookBeforeClose(this, args);
Cancel = args.Cancel;
}
else
Cancel = false;
}
...
private void closeExcel()
{
try
{
if (workbook != null)
{
workbook.Close(false);
}
}
catch (Exception e) { }
finally
{
if (workbooks != null)
Marshal.ReleaseComObject(workbooks);
if (workbook != null)
Marshal.ReleaseComObject(workbook);
}
try
{
if (application != null)
{
application.WorkbookBeforeClose -= handler;
application.Quit();
Marshal.ReleaseComObject(application);
Marshal.ReleaseComObject(handler);
process.WaitForExit();
}
}
catch (Exception e) { throw; }
finally
{
}
workbook = null;
workbooks = null;
application = null;
if (process != null && !process.HasExited)
process.Kill();
if (threadCulture != null)
Thread.CurrentThread.CurrentCulture = threadCulture;
initialized = false;
}
應用停留在行process.WaitForExit()
。
你能告訴我們你做了什麼嗎?所以我們可以看到有什麼問題? –