C# 创建Excel并写入内容

1 增加应用 Microsoft.Office.Interop.Excel

2 引用命名空间 using Excel = Microsoft.Office.Interop.Excel;

/// <summary>

/// If the supplied excel File does not exist then Create it

/// </summary>

/// <param name="FileName"></param>

private void CreateExcelFile(string FileName)

{

//create

object Nothing = System.Reflection.Missing.Value;

var app = new Excel.Application();

app.Visible = false;

Excel.Workbook workBook = app.Workbooks.Add(Nothing);

Excel.Worksheet worksheet = (Excel.Worksheet)workBook.Sheets[1];

worksheet.Name = "Work";

//headline

worksheet.Cells[1, 1] = "FileName";

worksheet.Cells[1, 2] = "FindString";

worksheet.Cells[1, 3] = "ReplaceString";



worksheet.SaveAs(FileName, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Excel.XlSaveAsAccessMode.xlNoChange, Type.Missing, Type.Missing, Type.Missing);

workBook.Close(false, Type.Missing, Type.Missing);

app.Quit();

}



/// <summary>

/// open an excel file,then write the content to file

/// </summary>

/// <param name="FileName">file name</param>

/// <param name="findString">first cloumn</param>

/// <param name="replaceString">second cloumn</param>

private void WriteToExcel(string excelName,string filename,string findString,string replaceString)

{

//open

object Nothing = System.Reflection.Missing.Value;

var app = new Excel.Application();

app.Visible = false;

Excel.Workbook mybook = app.Workbooks.Open(excelName, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing);

Excel.Worksheet mysheet = (Excel.Worksheet)mybook.Worksheets[1];

mysheet.Activate();

//get activate sheet max row count

int maxrow = mysheet.UsedRange.Rows.Count + 1;

mysheet.Cells[maxrow, 1] = filename;

mysheet.Cells[maxrow, 2] = findString;

mysheet.Cells[maxrow, 3] = replaceString;

mybook.Save();

mybook.Close(false, Type.Missing, Type.Missing);

mybook = null;

//quit excel app

app.Quit();

}