操作excel类

using System;
using System.Data;
using System.Configuration;
using System.Web;
using Excel = Microsoft.Office.Interop.Excel;
using System.Collections;
using System.Data.OleDb;


namespace ExcelEdit1
{
    /// <SUMMARY>
    /// ExcelEdit 的摘要说明
    /// </SUMMARY>
    public class ExcelEdit1
    {
        public string mFilename;
        public Excel.Application app;
        public Excel.Workbooks wbs;
        public Excel.Workbook wb;
        public Excel.Worksheets wss;
        public Excel.Worksheet ws;
        public DataTable dt = new DataTable();
        public ExcelEdit1()
        {
            //
            // TODO: 在此处添加构造函数逻辑
            //
        }

        public void Create()//创建一个Excel对象
        {
            app = new Excel.Application();
            wbs = app.Workbooks;
            wb = wbs.Add(true);
        }
        public void Open(string FileName)//打开一个Excel文件
        {
            app = new Excel.Application();
            wbs = app.Workbooks;
            wb = wbs.Add(FileName);
            mFilename = FileName;
        }
        public void Opens(string FileName)
        {
            app = new Excel.Application();
            wbs = app.Workbooks;
            wb = wbs.Add(FileName);
            mFilename = FileName;
            app.Visible = true; //使Excel可视 
        }

        //获取excel工作表名（sheet名）
        public string[] GetSheetName()
        {
            ArrayList sSheetName = new ArrayList();

            foreach (Excel.Worksheet displayWorksheet in app.Worksheets)
            {
                sSheetName.Add(displayWorksheet.Name);
            }
            return (string[])sSheetName.ToArray(typeof(string));
        }

        //获取一个工作表
        public Excel.Worksheet GetSheet(string SheetName)
        {
            Excel.Worksheet s = (Excel.Worksheet)wb.Worksheets[SheetName];
            return s;
        }
        
        //添加一个工作表
        public Excel.Worksheet AddSheet(string SheetName)
        {
            Excel.Worksheet s = (Excel.Worksheet)wb.Worksheets.Add(Type.Missing, Type.Missing, Type.Missing, Type.Missing);
            s.Name = SheetName;
            return s;
        }

        public void DelSheet(string SheetName)//删除一个工作表
        {
            ((Excel.Worksheet)wb.Worksheets[SheetName]).Delete();
        }
        public Excel.Worksheet ReNameSheet(string OldSheetName, string NewSheetName)//重命名一个工作表一
        {
            Excel.Worksheet s = (Excel.Worksheet)wb.Worksheets[OldSheetName];
            s.Name = NewSheetName;
            return s;
        }

        public Excel.Worksheet ReNameSheet(Excel.Worksheet Sheet, string NewSheetName)//重命名一个工作表二
        {
            Sheet.Name = NewSheetName;
            return Sheet;
        }

        /// <summary>
        /// 设置excel单元格值
        /// </summary>
        /// <param name="ws">要设值的工作表</param>
        /// <param name="x">X行</param>
        /// <param name="y">Y列</param>
        /// <param name="value">值</param>
        public void SetCellValue(Excel.Worksheet ws, int x, int y, object value)
        {
            ws.Cells[x, y] = value;
        }
        public void SetCellValue(string ws, int x, int y, object value)
        //ws：要设值的工作表的名称 X行Y列 value 值
        {
            try
            {
                GetSheet(ws).Cells[x, y] = value;
            }
            catch (Exception ex) {
                string str = "1";
            }
        }
        /// <summary>
        /// 取得一个值 
        /// </summary>
        /// <param name="ws"></param>
        /// <param name="x"></param>
        /// <param name="y"></param>
        /// <returns></returns>
        public string GetCellValue(string ws, int x, int y)
        {
            if (((Excel.Range)GetSheet(ws).Cells[x, y]).Text.ToString() != "")
            { return ((Excel.Range)GetSheet(ws).Cells[x, y]).Value2.ToString(); }
            else
            {
                return "";
            }
        }

        public void SetCellProperty(Excel.Worksheet ws, int Startx, int Starty, int Endx, int Endy, int size, string name, Excel.Constants color, Excel.Constants HorizontalAlignment)
        //设置一个单元格的属性   字体，   大小，颜色   ，对齐方式
        {
            name = "宋体";
            size = 12;
            color = Excel.Constants.xlAutomatic;
            HorizontalAlignment = Excel.Constants.xlRight;
            ws.get_Range(ws.Cells[Startx, Starty], ws.Cells[Endx, Endy]).Font.Name = name;
            ws.get_Range(ws.Cells[Startx, Starty], ws.Cells[Endx, Endy]).Font.Size = size;
            ws.get_Range(ws.Cells[Startx, Starty], ws.Cells[Endx, Endy]).Font.Color = color;
            ws.get_Range(ws.Cells[Startx, Starty], ws.Cells[Endx, Endy]).HorizontalAlignment = HorizontalAlignment;
        }

        public void SetCellProperty(string wsn, int Startx, int Starty, int Endx, int Endy, int size, string name, System.Drawing.Color color, Excel.Constants HorizontalAlignment)
        {
            //name = "宋体";
            //size = 12;
            //color = Excel.Constants.xlAutomatic;
            //HorizontalAlignment = Excel.Constants.xlRight;

            Excel.Worksheet ws = GetSheet(wsn);
            ws.get_Range(ws.Cells[Startx, Starty], ws.Cells[Endx, Endy]).Font.Name = name;
            ws.get_Range(ws.Cells[Startx, Starty], ws.Cells[Endx, Endy]).Font.Size = size;
            ws.get_Range(ws.Cells[Startx, Starty], ws.Cells[Endx, Endy]).Font.Color = color;
            ws.get_Range(ws.Cells[Startx, Starty], ws.Cells[Endx, Endy]).HorizontalAlignment = HorizontalAlignment;
        }

        //合并单元格
        public void UniteCells(Excel.Worksheet ws, int x1, int y1, int x2, int y2)
        {
            ws.get_Range(ws.Cells[x1, y1], ws.Cells[x2, y2]).Merge(Type.Missing);
        }
        
        //合并单元格
        public void UniteCells(string ws, int x1, int y1, int x2, int y2)
        {
            GetSheet(ws).get_Range(GetSheet(ws).Cells[x1, y1], GetSheet(ws).Cells[x2, y2]).Merge(Type.Missing);

        }

        public void InsertTable(System.Data.DataTable dt, string ws, int startX, int startY)
        //将内存中数据表格插入到Excel指定工作表的指定位置 为在使用模板时控制格式时使用一
        {
            for (int i = 0; i <= dt.Rows.Count - 1; i++)
            {
                for (int j = 0; j <= dt.Columns.Count - 1; j++)
                {
                    GetSheet(ws).Cells[startX + i, j + startY] = dt.Rows[i][j].ToString();
                }
            }
        }
        public void InsertTable(System.Data.DataTable dt, Excel.Worksheet ws, int startX, int startY)
        //将内存中数据表格插入到Excel指定工作表的指定位置二
        {

            for (int i = 0; i <= dt.Rows.Count - 1; i++)
            {
                for (int j = 0; j <= dt.Columns.Count - 1; j++)
                {

                    ws.Cells[startX + i, j + startY] = dt.Rows[i][j];

                }

            }

        }

        public void AddTable(System.Data.DataTable dt, string ws, int startX, int startY)
        //将内存中数据表格添加到Excel指定工作表的指定位置一
        {
            for (int i = 0; i <= dt.Rows.Count - 1; i++)
            {
                for (int j = 0; j <= dt.Columns.Count - 1; j++)
                {
                    GetSheet(ws).Cells[i + startX, j + startY] = dt.Rows[i][j];
                }
            }
        }

        public void AddTable(System.Data.DataTable dt, Excel.Worksheet ws, int startX, int startY)
        //将内存中数据表格添加到Excel指定工作表的指定位置二
        {
            for (int i = 0; i <= dt.Rows.Count - 1; i++)
            {
                for (int j = 0; j <= dt.Columns.Count - 1; j++)
                {
                    ws.Cells[i + startX, j + startY] = dt.Rows[i][j];
                }
            }

        }
        public void InsertPictures(string Filename, string ws)
        //插入图片操作一
        {
  //          GetSheet(ws).Shapes.AddPicture(Filename, MsoTriState.msoFalse, MsoTriState.msoTrue, 10, 10, 150, 150);
            //后面的数字表示位置
        }

        //public void InsertPictures(string Filename, string ws, int Height, int Width)
        //插入图片操作二
        //{
        //    GetSheet(ws).Shapes.AddPicture(Filename, MsoTriState.msoFalse, MsoTriState.msoTrue, 10, 10, 150, 150);
        //    GetSheet(ws).Shapes.get_Range(Type.Missing).Height = Height;
        //    GetSheet(ws).Shapes.get_Range(Type.Missing).Width = Width;
        //}
        //public void InsertPictures(string Filename, string ws, int left, int top, int Height, int Width)
        //插入图片操作三
        //{

        //    GetSheet(ws).Shapes.AddPicture(Filename, MsoTriState.msoFalse, MsoTriState.msoTrue, 10, 10, 150, 150);
        //    GetSheet(ws).Shapes.get_Range(Type.Missing).IncrementLeft(left);
        //    GetSheet(ws).Shapes.get_Range(Type.Missing).IncrementTop(top);
        //    GetSheet(ws).Shapes.get_Range(Type.Missing).Height = Height;
        //    GetSheet(ws).Shapes.get_Range(Type.Missing).Width = Width;
        //}

        public void InsertActiveChart(Excel.XlChartType ChartType, string ws, int DataSourcesX1, int DataSourcesY1, int DataSourcesX2, int DataSourcesY2, Excel.XlRowCol ChartDataType)
        //插入图表操作
        {
            ChartDataType = Excel.XlRowCol.xlColumns;
            wb.Charts.Add(Type.Missing, Type.Missing, Type.Missing, Type.Missing);
            {
                wb.ActiveChart.ChartType = ChartType;
                wb.ActiveChart.SetSourceData(GetSheet(ws).get_Range(GetSheet(ws).Cells[DataSourcesX1, DataSourcesY1], GetSheet(ws).Cells[DataSourcesX2, DataSourcesY2]), ChartDataType);
                wb.ActiveChart.Location(Excel.XlChartLocation.xlLocationAsObject, ws);
            }
        }
        public bool Save()
        //保存文档
        {
            if (mFilename == "")
            {
                return false;
            }
            else
            {
                try
                {
                    wb.Save();
                    return true;
                }

                catch (Exception ex)
                {
                    return false;
                }
            }
        }

        public bool SaveAs(object FileName)
        //文档另存为
        {
            try
            {
                wb.SaveAs(FileName, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Excel.XlSaveAsAccessMode.xlExclusive, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing);
                return true;
            }

            catch (Exception ex)
            {
                return false;
            }
        }
        public void Close()
        //关闭一个Excel对象，销毁对象
        {
            //wb.Save();
            wb.Close(Type.Missing, Type.Missing, Type.Missing);
            wbs.Close();
            app.Quit();
            wb = null;
            wbs = null;
            app = null;
            GC.Collect();
        }

        public string CloseAndSave(string filePath)
        //关闭一个Excel并保存
        {
            string newName = Guid.NewGuid().ToString() + ".xlsx";
            wb.SaveAs(filePath + newName, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Excel.XlSaveAsAccessMode.xlNoChange, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing);
            wb.Close(Type.Missing, Type.Missing, Type.Missing);
            wbs.Close();
            app.Quit();
            wb = null;
            wbs = null;
            app = null;
            GC.Collect();

            return newName;
        }

        /// <summary>
        /// 设置单个单元格的颜色
        /// </summary>
        /// <param name="wsn"></param>
        /// <param name="Startx"></param>
        /// <param name="Starty"></param>
        /// <param name="colorIndex"></param>
        public void SetCellProperty(string wsn, int Startx, int Starty, int colorIndex)
        {
            try
            {
                Excel.Worksheet ws = GetSheet(wsn);
                ws.get_Range(ws.Cells[Startx, Starty], ws.Cells[Startx, Starty]).Interior.ColorIndex = colorIndex;
            }
            catch (Exception ex) {
                string str = "";
            }
        }

        /// <summary>
        /// 获取工作表数据到DataTable中   --2012-10-17 by LeShan
        /// </summary>
        /// <param name="path">excel文件路径</param>
        /// <param name="sheetName">工作表名</param>
        /// <returns>返回一个DataTable</returns>
        public DataTable getExcelToTable(string path,string sheetName)
        {
            //string ConnStr = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + path + ";Extended Properties=Excel 8.0;";
            string ConnStr = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + path + ";Extended Properties="Excel 12.0;HDR=YES"";
            string query = "SELECT   *   FROM   ["+sheetName+"$] ";

            OleDbCommand oleCommand = new OleDbCommand(query, new OleDbConnection(ConnStr));
            OleDbDataAdapter oleAdapter = new OleDbDataAdapter(oleCommand);

            DataTable dt = new DataTable();
            oleAdapter.Fill(dt);
            return dt;
        }
    }
}