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我有一個會計程序，它生成報告並將它們保存在excel文件中。但我不需要這份報告中的大部分專欄。所以我創建了一個程序來刪除我不需要的列。在轉換後的文件中，我使用3個空列來編寫筆記，數據等。我每週都會生成這個報告，因此當生成新報告時，我需要將其轉換並將舊報告中寫入的3列轉移到新的那一個。報告的第一列是UserID，因此我需要傳輸爲ID編寫的筆記和數據。新報告中的某些ID可能會丟失。 我創建了一個應該這樣做的Windows窗體應用程序，但它不起作用。新報告將被轉換，但舊數據不會被轉移。有任何想法嗎？？這是我的代碼：將數據從一個excel文件傳輸到另一個
OpenExcelWorkbook(OldFilePath);
_sheet = (Excel.Worksheet)_sheets[1];
_sheet.Select(Type.Missing);
var oldData = new DataTable();
oldData.Columns.Add("Id", typeof(string));
oldData.Columns.Add("Comment1", typeof(string));
oldData.Columns.Add("Comment2", typeof(string));
oldData.Columns.Add("Comment3", typeof(string));
var range = _sheet.UsedRange;
for (var i = 1; i <= range.Rows.Count; i++)
{
oldData.Rows.Add(_sheet.Range["A" + i, Type.Missing].Value2, _sheet.Range["J" + i, Type.Missing].Value2, _sheet.Range["K" + i, Type.Missing].Value2,
_sheet.Range["L" + i, Type.Missing].Value2);
}
_book.Save();
_book.Close(false, Type.Missing, Type.Missing);
_app.Quit();
releaseObject(_sheet);
releaseObject(_book);
releaseObject(_app);
OpenExcelWorkbook(NewFilePath);
_sheet = (Excel.Worksheet)_sheets[1];
_sheet.Select(Type.Missing);
range = _sheet.Range["D:E", Type.Missing];
range.EntireColumn.Delete(Type.Missing);
range = _sheet.Range["E:F", Type.Missing];
range.EntireColumn.Delete(Type.Missing);
range = _sheet.Range["F:I", Type.Missing];
range.EntireColumn.Delete(Type.Missing);
_sheet.Cells[4, 3] = "Invoice";
_sheet.Cells[4, 4] = "Transfer";
_sheet.Cells[4, 5] = "Receipt";
range = _sheet.UsedRange;
var convDataTable = new DataTable();
convDataTable.Columns.Add("Id", typeof(string));
convDataTable.Columns.Add("Comment1", typeof(string));
convDataTable.Columns.Add("Comment2", typeof(string));
convDataTable.Columns.Add("Comment3", typeof(string));
for (var i = 1; i < range.Rows.Count; i++)
convDataTable.Rows.Add(_sheet.Range["A" + i, Type.Missing].Value2, "", "", "");
foreach (DataRow row in convDataTable.Rows)
{
foreach (DataRow row1 in oldData.Rows)
{
if (row["Id"] == row1["Id"])
{
row["Comment1"] = row1["Comment1"];
row["Comment2"] = row1["Comment2"];
row["Comment3"] = row1["Comment3"];
}
}
}
for (var i = 1; i <= convDataTable.Rows.Count; i++)
{
_sheet.Cells[i, 10] = convDataTable.Rows[i - 1]["Comment1"];
_sheet.Cells[i, 11] = convDataTable.Rows[i - 1]["Comment2"];
_sheet.Cells[i, 12] = convDataTable.Rows[i - 1]["Comment3"];
}
_book.Save();
_book.Close(false, Type.Missing, Type.Missing);
_app.Quit();
releaseObject(_sheet);
releaseObject(_book);
releaseObject(_app);
這些是我使用的功能。
private static void releaseObject(object obj)
{
try
{
System.Runtime.InteropServices.Marshal.ReleaseComObject(obj);
obj = null;
}
catch (Exception ex)
{
obj = null;
MessageBox.Show("Unable to release the Object " + ex.ToString());
}
finally
{
GC.Collect();
}
}
protected void OpenExcelWorkbook(string filePath)
{
_app = new Application();
_books = _app.Workbooks;
_book = _books.Open(filePath, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing,
Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing);
_sheets = _book.Worksheets;
}
您是否試過單步執行代碼？評論信息是否將其轉換爲舊數據？當您到達底部的循環並且您試圖將其複製到新的電子表格中時，它仍然存在嗎？ – forsvarir 2011-03-24 10:28:28