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Excel アプリケーション ワークブックやワークシートなどの Excel COM オブジェクトを適切に閉じようとしています。このサイトと他のサイトのすべてのソリューションを閲覧しました。何も機能しません。唯一の方法は、ループを実行してプロセスを強制終了またはエクセルすることです。単一のExcelファイルプロセスのみを強制終了するより良い方法または方法はありますか?

        #region VARIABLE

            int nColumn = 0;
            int nIMPORT = 1;
            int endofsheet = 0;

            string IMPORTfilepath = null;
            string nsheet = null;
            string nCell = null;
            string lastfilename = "";            

            double rRFDS = 0;
            double cRFDS = 0;

            List<String> filename = new List<String>();  

            object misValue1 = System.Reflection.Missing.Value;

            //Opening Central DB
            Excel.Application CentralDB;
            Excel.Workbook CentralDBWorkBook;
            Excel.Worksheet CentralDBWorkSheet;
            Excel.Range CentralDBrange;

            //Opening RFDS
            Excel.Application IMPORT;
            Excel.Workbook IMPORTWorkBook;
            Excel.Worksheet IMPORTWorkSheet;

            //Excel.Range RFDSrange;
            Excel.Range CellAddress;

        #endregion

        CentralDB = new Microsoft.Office.Interop.Excel.Application();
        CentralDBWorkBook = CentralDB.Workbooks.Open(Odl1.FileName, 0, false, 5, "", "", true, Microsoft.Office.Interop.Excel.XlPlatform.xlWindows, "\t", false, false, 0, true, 1, 0);
        CentralDBWorkSheet = CentralDB.Worksheets.get_Item(1);

        IMPORT = new Microsoft.Office.Interop.Excel.Application();
        IMPORTfilepath = Odl2.FileNames[nIMPORT];
        IMPORTWorkBook = IMPORT.Workbooks.Open(IMPORTfilepath, 0, true, 5, "", "", true, Microsoft.Office.Interop.Excel.XlPlatform.xlWindows, "\t", false, false, 0, true, 1, 0);
        IMPORTWorkSheet = IMPORT.Worksheets.get_Item(1);

        CentralDBrange = CentralDBWorkSheet.UsedRange;        

        filename = Odl2.FileNames.ToList();

        endofsheet = CentralDBrange.Rows.Count;            

        foreach(string fn in filename)
        {
            try
            {
                IMPORTWorkBook = IMPORT.Workbooks.Open(fn, 0, true, 5, "", "", true, Microsoft.Office.Interop.Excel.XlPlatform.xlWindows, "\t", false, false, 0, true, 1, 0);
                CentralDBWorkSheet.Cells[nIMPORT + endofsheet, 1] = IMPORTWorkBook.Name;
                for (nColumn = 3; nColumn <= CentralDBrange.Columns.Count; nColumn++)
                {
                    nsheet = (string)(CentralDBrange.Cells[2, nColumn].Value2);
                    foreach (Excel.Worksheet ws in IMPORTWorkBook.Sheets)
                    {
                        if (ws.Name.Equals(nsheet))
                        {
                            IMPORTWorkSheet = IMPORTWorkBook.Worksheets.get_Item(nsheet);

                            nCell = (string)(CentralDBrange.Cells[3, nColumn].Value2);
                            CellAddress = CentralDBWorkSheet.get_Range(nCell, nCell);

                            rRFDS = CellAddress.Row;
                            cRFDS = CellAddress.Column;
                            CentralDBWorkSheet.Cells[nIMPORT + endofsheet, nColumn] = IMPORTWorkSheet.Cells[rRFDS, cRFDS];
                            label4.Text = nIMPORT.ToString() + "/" + Convert.ToString(Odl2.FileNames.Count());
                        }
                    }
                }
                nIMPORT++;
                nColumn = 3;
                CentralDBWorkBook.Save();
                IMPORTWorkBook.Close(false, null, null);
            }
            catch (System.Exception ex)
            {
                MessageBox.Show("Unable to release the Object " + ex.ToString());                            
            }
            lastfilename = fn;
        }

        CentralDB.Quit();
        releaseObject(CentralDBWorkSheet);
        releaseObject(CentralDBWorkBook);
        releaseObject(CentralDB);

        IMPORT.Quit();
        releaseObject(IMPORTWorkSheet);
        releaseObject(IMPORTWorkBook);
        releaseObject(IMPORT);
        GC.Collect();  
 }        

            private void releaseObject(object obj)
            {
                try
                {
                    System.Runtime.InteropServices.Marshal.ReleaseComObject(obj);
                    obj = null;
                }
                catch (System.Exception ex)
                {
                    obj = null;
                    MessageBox.Show("Unable to release the Object " + ex.ToString());
                }
                finally
                {
                    GC.Collect();
                }

            }
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2 に答える 2

1

私のコメントに加えて...私はこれを使用し、うまく機能します...しかし、繰り返しますが、あちこちに参照が保持されていません。

private void DoReleaseCOMObject(object obj)
        {
            int refCounter = Marshal.ReleaseComObject(obj);
            while (refCounter > 0)
            {
                refCounter = Marshal.ReleaseComObject(obj);
                System.Diagnostics.Debug.WriteLine("ReleaseCOM ref: " + refCounter);
            }

            obj = null;
        }

 private void DoFinalReleaseCOMObject(object obj)
        {
            int refCounter = Marshal.FinalReleaseComObject(obj);
            System.Diagnostics.Debug.WriteLine("FinalReleaseComObject ref: " + refCounter);

            obj = null;
        }

public void Dispose()
        {
            System.Diagnostics.Debug.WriteLine("In Dispose");
            this.Dispose(false); // because we are doing unmanaged
            GC.Collect();
            GC.SuppressFinalize(this);
        }

        protected virtual void Dispose(bool disposing)
        {
            System.Diagnostics.Debug.WriteLine("In Dispose (" + disposing + ")");
            if (!disposing) // unmanaged
            {
                #region COM Cleanup

                this.DoFinalReleaseCOMObject(this.headerStartCell);
                this.DoFinalReleaseCOMObject(this.headerEndCell);
                this.DoFinalReleaseCOMObject(this.headerWriteRange);

                this.DoFinalReleaseCOMObject(this.startCell);
                this.DoFinalReleaseCOMObject(this.endCell);
                this.DoFinalReleaseCOMObject(this.writeRange);

                this.DoFinalReleaseCOMObject(this.ws);
                this.DoFinalReleaseCOMObject(this.wb);
                this.DoFinalReleaseCOMObject(this.wbs);

                this.DoFinalReleaseCOMObject(this.excelApp);

                System.Diagnostics.Debug.WriteLine("I've tried to clean");

                #endregion
            }

            // no need for else condition if dispose is true as we are not dealing with managed objects
        }

はい、IDisposable インターフェイスを実装しました。グローバルに参照/保持されているExcelオブジェクトの参照もいくつかありました（同じインスタンス）。これは、Excelを終了したときにクリーンアップしているものです

于 2013-12-08T00:06:35.987 に答える
1

この順序を試してください (プラス.Visible = false):

    releaseObject(CentralDBWorkSheet);
    releaseObject(CentralDBWorkBook);

    releaseObject(IMPORTWorkSheet);
    releaseObject(IMPORTWorkBook);

    CentralDB.Visible = false;
    IMPORT.Visible = false;

    CentralDB.Quit();
    IMPORT.Quit();

    releaseObject(CentralDB);
    releaseObject(IMPORT);
于 2013-09-23T04:19:50.987 に答える