我試圖從excel/csv文件中刪除所有非ascii字符。在閱讀在線和搜索後,我發現一篇文章給我的代碼xlWorksheet.UsedRange.Replace("[^\\u0000-\\u007F]"
刪除字符,但每次,但字符仍然存在於文件中。刪除非ASCII字符(使用Microsoft.Office.Interop.Excel)
而且我得到一個對話框,說明
我們無法找到任何東西來代替。點擊選項查看 搜索的更多方法。
僅供參考:您試圖替換的數據可能位於受保護的 工作表中。 Excel無法替換受保護工作表中的數據。
不確定如何進一步處理。我一直在網上閱讀和閱讀,但迄今沒有發現任何有用的東西。
感謝您的幫助。
using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text;
using System.Threading.Tasks;
using Excel = Microsoft.Office.Interop.Excel;
namespace ConsoleApplication1
{
class Program
{
static void Main(string[] args)
{
Excel.Application xlApp = new Excel.Application();
Excel.Workbook xlWorkbook = xlApp.Workbooks.Open(@"C:\Users\username\Desktop\Error Records.csv");
Excel.Worksheet xlWorksheet = xlWorkbook.Sheets[1];
Excel.Range xlRange = xlWorksheet.UsedRange;
int lastUsedRow = xlWorksheet.Cells.Find("*", System.Reflection.Missing.Value,
System.Reflection.Missing.Value, System.Reflection.Missing.Value,
Excel.XlSearchOrder.xlByRows, Excel.XlSearchDirection.xlPrevious,
false, System.Reflection.Missing.Value, System.Reflection.Missing.Value).Row;
int lastUsedColumn = xlWorksheet.Cells.Find("*", System.Reflection.Missing.Value,
System.Reflection.Missing.Value, System.Reflection.Missing.Value,
Excel.XlSearchOrder.xlByColumns, Excel.XlSearchDirection.xlPrevious,
false, System.Reflection.Missing.Value, System.Reflection.Missing.Value).Column;
// int lastColumnCount = lastUsedColumn;
//;
// for (int i = 1; i <= lastUsedColumn; i++)
// {
// for (int j = 1; j <= lastUsedRow; j++)
// {
// xlWorksheet.Cells[j, (lastColumnCount+1)] = "Testing data 134";
// }
// }
xlWorksheet.Cells[1, (lastUsedColumn + 1)] = "Title";
xlWorksheet.UsedRange.Replace("[^\\u0000-\\u007F]", string.Empty);
xlWorkbook.Save();
//cleanup
GC.Collect();
GC.WaitForPendingFinalizers();
//rule of thumb for releasing com objects:
// never use two dots, all COM objects must be referenced and released individually
// ex: [somthing].[something].[something] is bad
//release com objects to fully kill excel process from running in the background
Marshal.ReleaseComObject(xlRange);
Marshal.ReleaseComObject(xlWorksheet);
//close and release
xlWorkbook.SaveAs("C:\\Users\\username\\Desktop\\Errors_four.csv".Trim(), Excel.XlFileFormat.xlCSV);
xlWorkbook.Close();
Marshal.ReleaseComObject(xlWorkbook);
//quit and release
xlApp.Quit();
Marshal.ReleaseComObject(xlApp);
}
}
}
Excel不支持Regex樣式替換,因此您需要遍歷每個單元格,將內容作爲字符串提取並對字符串進行替換並將其分配回單元格。 – PaulF