C#中datagridview如何实现转置然后打印

你看看你装的office 安装了 .net组件了吗、没有安装的话、导入就会报错

在输出的时候可以考虑将datagridview控件的值转换成datatable后将datatable在赋值到Excel单元格时进行位置调整已达到要求

直接写excel，很简单for(int i=0;i<colNum;i++)
{
   for(int j=0;j<rowNum;j++)
   {
     excel.setvalue("工作表名",‘x坐标’，‘y坐标’，table[j][i])
   }}

需要添加excel dll 的引用

//引入Excel的COM组件
using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using Microsoft.Office.Interop;
using Microsoft.Office.Core;namespace ExcelEdit
{
/// <SUMMARY>
/// ExcelEdit 的摘要说明
/// </SUMMARY>
    public class ExcelEdit
    {
        public string mFilename;
        public Excel.Application app;
        public Excel.Workbooks wbs;
        public Excel.Workbook wb;
        public Excel.Worksheets wss;
        public Excel.Worksheet ws;
        public ExcelEdit()
        {
            //
            // 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);
            //wb = wbs.Open(FileName, 0, true, 5,"", "", true, Excel.XlPlatform.xlWindows, "t", false, false, 0, true,Type.Missing,Type.Missing);
            //wb = wbs.Open(FileName,Type.Missing,Type.Missing,Type.Missing,Type.Missing,Type.Missing,Type.Missing,Excel.XlPlatform.xlWindows,Type.Missing,Type.Missing,Type.Missing,Type.Missing,Type.Missing,Type.Missing,Type.Missing);
            mFilename = FileName;
        }
        public Excel.Worksheet GetSheet(string SheetName)
       //获取一个工作表
        {
            Excel.Worksheet s = (Excel.Worksheet)wb.Worksheets[SheetName];
            return s;
        }
        public Excel.Worksheet AddSheet(string SheetName)
        //添加一个工作表
        {
            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;
        }        public void SetCellValue(Excel.Worksheet ws, int x, int y, object value)
//ws：要设值的工作表     X行Y列     value   值
        {
            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
        {            GetSheet(ws).Cells[x, y] = value;
        }        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
fc1
Endx, int Endy, int size, string name, Excel.Constants 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;
        }
        public void UniteCells(Excel.Worksheet ws, int x1, int y1, int x2, int y2)
//合并单元格
        {
            ws.get_Range(ws.Cells[x1, y1], ws.Cells[x2, y2]).Merge(Type.Missing);
        }        public void UniteCells(string ws, int x1, int y1, int x2, int y2)
//合并单元格
        {
            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);
        //    GetShee
8ab
t(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();
        }
    }
}

------------------------
这个是csdn上有人写的excel操作类很多。可以百度。
下载一个，包含到项目中，项目中引用excel dll，2003和2007 dll版本不一样，注意看下。
如何引用excel dll不会问度娘用的时候直接
ExcelEdit myexl=new ExcelEdit（）;
myexl.Create();//开excel，会多出excel进程
myexl.AddSheet("sheetName");//创建工作表
for(int i=0;i<colNum;i++)//写数据
{
   for(int j=0;j<rowNum;j++)
   {
     excel.setvalue("工作表名",‘x坐标’，‘y坐标’，table[j][i])
   }
}
myexl.SaveAs(@"d\myexcel.xls");//保存数据
myexl.Close();//关闭excel

调试易

C#中datagridview如何实现转置然后打印

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