C# 操作Excel代码总结

//引用Microsoft.Office.Interop.Excel.dll文件 
//添加using
using Microsoft.Office.Interop.Excel;
using Excel=Microsoft.Office.Interop.Excel;
 
//设置程序运行语言
System.Globalization.CultureInfo CurrentCI = System.Threading.Thread.CurrentThread.CurrentCulture;
System.Threading.Thread.CurrentThread.CurrentCulture = new System.Globalization.CultureInfo("en-US");
//创建Application
Excel.Application xlApp = new Excel.Application();
//设置是否显示警告窗体
excelApp.DisplayAlerts = false;
//设置是否显示Excel
excelApp.Visible = false;
//禁止刷新屏幕
excelApp.ScreenUpdating = false;
//根据路径path打开
Excel.Workbook xlsWorkBook = excelApp.Workbooks.Open(path,System.Type.Missing,System.Type.Missing);
//获取Worksheet对象
Excel.Worksheet xlsWorkSheet = (Worksheet)xlsWorkBook.Worksheets["sales plan"];
 
***获取最后一行、一列的两种方法***
//获取已用的范围数据
int rowsCount = xlsWorkSheet.UsedRange.Rows.Count;
int colsCount = xlsWorkSheet.UsedRange.Columns.Count;
int rowsCount = xlsWorkSheet.get_Range("A65536","A65536").get_End(Microsoft.Office.Interop.Excel.XlDirection.xlUp).Row;
int colsCount = xlsWorkSheet.get_Range("ZZ1","ZZ1").get_End(Microsoft.Office.Interop.Excel.XlDirection.xlToLeft).Column;
 
***将Excel数据存入二维数组***
//rowsCount：最大行  colsCount：最大列
Microsoft.Office.Interop.Excel.Range c1 = (Microsoft.Office.Interop.Excel.Range)xlsWorkSheet.Cells[1,1];
Microsoft.Office.Interop.Excel.Range c2 = (Microsoft.Office.Interop.Excel.Range)xlsWorkSheet.Cells[rowsCount,colsCount];
Range rng = (Microsoft.Office.Interop.Excel.Range)xlsWorkSheet.get_Range(c1,c2);
object[,] exceldata = (object[,])rng.get_Value(Microsoft.Office.Interop.Excel.XlRangeValueDataType.xlRangeValueDefault);
 
//在第一列的左边插入一列
Excel.Range xlsColumns = (Excel.Range)xlsWorkSheet.Columns[1,System.Type.Missing];
xlsColumns.Insert(XlInsertShiftDirection.xlShiftToRight,Type.Missing);
//xlsSheetTemplateMajor_Meisai.Cells.get_Range(xlsSheetTemplateMajor_Meisai.Cells[1,1],xlsSheetTemplateMajor_Meisai.Cells[65535,1]).Insert(Type.Missing,Type.Missing);
 Excel.Range rng;
      rng = worksheet.get_Range("A:A","A:A");
      rng.Insert(Excel.XlDirection.xlToRight,Excel.XlInsertFormatOrigin.xlFormatFromLeftOrAbove);
Excel.Range rng = (Microsoft.Office.Interop.Excel.Range)xlsWorkSheet.Columns[12,Type.Missing];
rng.Insert(XlInsertShiftDirection.xlShiftToRight,XlInsertFormatOrigin.xlFormatFromLeftOrAbove);
 
 
//删除行
Range deleteRng = (Range)xlsWorkSheetSapExcel.Rows[2,System.Type.Missing];
deleteRng.Delete(Excel.XlDeleteShiftDirection.xlShiftUp);
 
//删除一列数据
((Microsoft.Office.Interop.Excel.Range)xlWorkSheet.Cells[1,11]).Select();
((Microsoft.Office.Interop.Excel.Range)xlWorkSheet.Cells[1,11]).EntireColumn.Delete(0);
((Excel.Range)xlsSheetShareMajor_Meisai.Cells[1,3]).EntireColumn.Delete (0);
       
//设置背景色为红色
xlsWorkSheet.get_Range("A1","A1").Interior.ColorIndex = 3;
 
//设置Format属性  属性值可以通过在vba中录宏得到
Microsoft.Office.Interop.Excel.Range range1 = xlsWorkSheetAdd.get_Range("J1","J65535");
range1.NumberFormat = "@";//文本格式
range1 = xlsWorkSheetAdd.get_Range("L1","L65535");
range1.NumberFormat = "0.00";//保留两位小数
Excel.Range rng = xlsSheetShareMajor_Meisai.Columns["I",System.Type.Missing] as Excel.Range;
rng.NumberFormatLocal =@"yyyy/m/d";//设置日期格式
 
 
//替换
Range Drng = xlsWorkSheetTemplate.get_Range("D1","D65535");
Drng.Replace(" ","",XlLookAt.xlPart,XlSearchOrder.xlByColumns,System.Type.Missing);
Drng.TextToColumns(Drng,Excel.XlTextParsingType.xlDelimited,Excel.XlTextQualifier.xlTextQualifierSingleQuote,System.Type.Missing);
 
//分列处理 设置为文本
Range TextToColumnRng = xlsWorkSheet.get_Range("E1","E65535");
xlsWorkSheet.get_Range("E1","E65535").TextToColumns(TextToColumnRng,System.Type.Missing);
 
//设置公式
rng = xlMergeFileWorkSheet.get_Range("D2","D" + rowcount);//设置列范围
rng.Formula = @"=IF(RC[-3]=""H"",""Survivor"",""Donor"")";//设置公式  @的问题
//rng.NumberFormat = "$0.00";//设置格式
copyRng = xlsSheetTemplateMajor_Meisai.get_Range("N3","N" + lastRowTemplate);
copyRng.Formula = "=VLOOKUP(RC[-12],AR残!C[-13]:C[-11],2,0)";
 
//通过行、列的索引获取值
string f = Convert.ToString(xlsSheetShareMajor_Meisai.get_Range(xlsSheetShareMajor_Meisai.Cells[2,xlsSheetShareMajor_Meisai.Cells[2,1]).Value2);
 
//筛选
//确定筛选范围
D1_rng = D1_TemSheet.Cells.get_Range(D1_TemSheet.Cells[1,D1_TemSheet.Cells[1,50]);
//执行筛选动作
rng.AutoFilter(5,"S",Microsoft.Office.Interop.Excel.XlAutoFilterOperator.xlFilterValues,Type.Missing,true);
rng.AutoFilter(6,"H",Microsoft.Office.Interop.Excel.XlAutoFilterOperator.xlOr,"F",true);
D1_rng.AutoFilter(D1_Column + 2,"#N/A",false);
 
//复制粘贴
D2_rng.Copy(Type.Missing);
D2_TemSheet.Cells.get_Range(D2_TemSheet.Cells[2,(D2_Column + 1)],D2_TemSheet.Cells[2,(D2_Column + 1)]).PasteSpecial(Excel.XlPasteType.xlPasteValues,Excel.XlPasteSpecialOperation.xlPasteSpecialOperationNone,false,false);
 
 
//Find查找
rng = mySheet.get_Range("A1","IV10").Find(arrLabel[j],Microsoft.Office.Interop.Excel.XlFindLookIn.xlValues,Microsoft.Office.Interop.Excel.XlLookAt.xlWhole,Microsoft.Office.Interop.Excel.XlSearchOrder.xlByRows,Microsoft.Office.Interop.Excel.XlSearchDirection.xlNext,Type.Missing);
 
//文字占满单元格
range.EntireColumn.AutoFit();
 
//另存
xlsWorkBook.SaveAs(FileName,XlSaveAsAccessMode.xlNoChange,Type.Missing);
 
***关闭对象***
System.Runtime.InteropServices.Marshal.ReleaseComObject(xlsWorkSheet);
System.Runtime.InteropServices.Marshal.ReleaseComObject(xlsWorkBook);
excelApp.Quit();
Kill(excelApp);//调用方法关闭进程
GC.Collect();
 
/// <summary>
/// 关闭Excel进程
/// </summary>
public class KeyMyExcelProcess
{
  [DllImport("User32.dll",CharSet = CharSet.Auto)]
  public static extern int GetWindowThreadProcessId(IntPtr hwnd,out int ID);
  public static void Kill(Microsoft.Office.Interop.Excel.Application excel)
  {
    try
    {
      IntPtr t = new IntPtr(excel.Hwnd);  //得到这个句柄，具体作用是得到这块内存入口
      int k = 0;
      GetWindowThreadProcessId(t,out k);  //得到本进程唯一标志k
      System.Diagnostics.Process p = System.Diagnostics.Process.GetProcessById(k);  //得到对进程k的引用
      p.Kill();   //关闭进程k
    }
    catch (System.Exception ex)
    {
      throw ex;
    }
  }
}
   
   
//关闭打开的Excel方法
 public void CloseExcel(Microsoft.Office.Interop.Excel.Application ExcelApplication,Microsoft.Office.Interop.Excel.Workbook ExcelWorkbook)
{
  ExcelWorkbook.Close(false,Type.Missing);
  ExcelWorkbook = null;
  ExcelApplication.Quit();
  GC.Collect();
  KeyMyExcelProcess.Kill(ExcelApplication);
}