c#导出Excel⽂件的⼏种⽅法
using System;
using System.Collections.Generic;
using System.Text;
using System.Data;
using System.Windows.Forms;
using System.Reflection;
namespace DMS
{
/// <summary>
/// C#操作Excel类
/
// </summary>
class ExcelOperate
{
//法⼀
//public bool DataSetToExcel(DataSet dataSet, bool isShowExcle)
//{
//    DataTable dataTable = dataSet.Tables[0];
//    int rowNumber = dataTable.Rows.Count;
//    int columnNumber = dataTable.Columns.Count;
//    if (rowNumber == 0)
//    {
/
/        MessageBox.Show("没有任何数据可以导⼊到Excel⽂件！");
//        return false;
//    }
//    //建⽴Excel对象
//    Microsoft.Office.Interop.Excel.Application excel = new Microsoft.Office.Interop.Excel.Application(); //    excel.Application.Workbooks.Add(true);
//    excel.Visible = isShowExcle;//是否打开该Excel⽂件
//    //填充数据
//    for (int c = 0; c < rowNumber; c++)
//    {
//        for (int j = 0; j < columnNumber; j++)
//        {
//            excel.Cells[c + 1, j + 1] = dataTable.Rows[c].ItemArray[j];
//        }
//    }
//    return true;
//}
//法⼆
//public bool DataSetToExcel(DataSet dataSet, bool isShowExcle)
//{
//    DataTable dataTable = dataSet.Tables[0];
//    int rowNumber = dataTable.Rows.Count;
//    int rowIndex = 1;
/
/    int colIndex = 0;
//    if (rowNumber == 0)
//    {
//        return false;
//    }
//    //建⽴Excel对象
//    Microsoft.Office.Interop.Excel.Application excel = new Microsoft.Office.Interop.Excel.Application();
//    Microsoft.Office.Interop.Excel.Application excel = new Microsoft.Office.Interop.Excel.Application();
//    excel.Application.Workbooks.Add(true);
//    excel.Visible = isShowExcle;
//    //⽣成字段名称
//    foreach (DataColumn col in dataTable.Columns)
//    {
//        colIndex++;
//        excel.Cells[1, colIndex] = col.ColumnName;
//    }
//    //填充数据
//    foreach (DataRow row in dataTable.Rows)
//    {
//        rowIndex++;
//        colIndex = 0;
/
/        foreach (DataColumn col in dataTable.Columns)
//        {
//            colIndex++;
//            excel.Cells[rowIndex, colIndex] = row[col.ColumnName];
//        }
//    }
//    return true;
//}
//法三（速度最快）
/// <summary>
/// 将数据集中的数据导出到EXCEL⽂件
/
// </summary>
/// <param name="dataSet">输⼊数据集</param>
/// <param name="isShowExcle">是否显⽰该EXCEL⽂件</param>
/// <returns></returns>
public bool DataSetToExcel(DataSet dataSet, bool isShowExcle)
{
DataTable dataTable = dataSet.Tables[0];
int rowNumber = dataTable.Rows.Count;//不包括字段名
int columnNumber = dataTable.Columns.Count;
int colIndex = 0;
if (rowNumber == 0)
{
return false;
}
//建⽴Excel对象
Microsoft.Office.Interop.Excel.Application excel = new Microsoft.Office.Interop.Excel.Application();
//excel.Application.Workbooks.Add(true);
Microsoft.Office.Interop.Excel.Workbook workbook = excel.Workbooks.Add(Microsoft.Office.Interop.Excel.XlWBATemplate.xlWBATWorksheet); Microsoft.Office.Interop.Excel.Worksheet worksheet = (Microsoft.Office.Interop.Excel.Worksheet)workbook.Worksheets[1];
excel.Visible = isShowExcle;
//Microsoft.Office.Interop.Excel.Worksheet worksheet = (Microsoft.Office.Interop.Excel.Worksheet)excel.Worksheets[1];
Microsoft.Office.Interop.Excel.Range range;
//⽣成字段名称
foreach (DataColumn col in dataTable.Columns)
{
colIndex++;
excel.Cells[1, colIndex] = col.ColumnName;
}
object[,] objData = new object[rowNumber, columnNumber];
for (int r = 0; r < rowNumber; r++)
{
for (int c = 0; c < columnNumber; c++)
for (int c = 0; c < columnNumber; c++)
{
objData[r, c] = dataTable.Rows[r][c];
}
//Application.DoEvents();
}
// 写⼊Excel
range = _Range(excel.Cells[2, 1], excel.Cells[rowNumber + 1, columnNumber]);
//range.NumberFormat = "@";//设置单元格为⽂本格式
range.Value2 = objData;
<_Range(excel.Cells[2, 1], excel.Cells[rowNumber + 1, 1]).NumberFormat = "yyyy-m-d h:mm";
return true;
}
//法四
//public bool DataSetToExcel(DataSet dataSet, bool isShowExcle)
//{
//    DataTable dataTable = dataSet.Tables[0];
//    int rowNumber = dataTable.Rows.Count;
//    int columnNumber = dataTable.Columns.Count;
//    String stringBuffer = "";
//    if (rowNumber == 0)
//    {
/
/        MessageBox.Show("没有任何数据可以导⼊到Excel⽂件！");
//        return false;
//    }
//    //建⽴Excel对象
//    Microsoft.Office.Interop.Excel.Application excel = new Microsoft.Office.Interop.Excel.Application();
//    excel.Application.Workbooks.Add(true);
//    excel.Visible = isShowExcle;//是否打开该Excel⽂件
//    //填充数据
//    for (int i = 0; i < rowNumber; i++)
//    {
//        for (int j = 0; j < columnNumber; j++)
//        {
//            stringBuffer += dataTable.Rows[i].ItemArray[j].ToString();
//            if (j < columnNumber - 1)
//            {
//                stringBuffer += "\t";
//            }
//        }
//        stringBuffer += "\n";
//    }
//    Clipboard.Clear();
//    Clipboard.SetDataObject(stringBuffer);
/
/    ((Microsoft.Office.Interop.Excel.Range)excel.Cells[1, 1]).Select();
//    ((Microsoft.Office.Interop.Excel.Worksheet)excel.ActiveWorkbook.ActiveSheet).Paste(Missing.Value, Missing.Value); //    Clipboard.Clear();
//    return true;
//}
//public bool DataSetToExcel(DataSet dataSet, string fileName, bool isShowExcle)
//{
//    DataTable dataTable = dataSet.Tables[0];
//    int rowNumber = dataTable.Rows.Count;
//    int columnNumber = dataTable.Columns.Count;
//    if (rowNumber == 0)
//    {
//        MessageBox.Show("没有任何数据可以导⼊到Excel⽂件！");
//        return false;
getsavefilename//    }
//    //建⽴Excel对象
//    Microsoft.Office.Interop.Excel.Application excel = new Microsoft.Office.Interop.Excel.Application();
//    Microsoft.Office.Interop.Excel.Workbook workBook = excel.Application.Workbooks.Add(true);
//    excel.Visible = false;//是否打开该Excel⽂件
//    //填充数据
//    for (int i = 0; i < rowNumber; i++)
//    {
//        for (int j = 0; j < columnNumber; j++)
//        {
//            excel.Cells[i + 1, j + 1] = dataTable.Rows[i].ItemArray[j];
//        }
//    }
//    //string fileName = path + "\\" + DateTime.Now.ToString().Replace(':', '_') + ".xls";
//    workBook.SaveAs(fileName, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Microsoft.Office.Interop.Excel.XlSaveAsAccess
//    try
//    {
//        workBook.Saved = true;
//        excel.UserControl = false;
//        //excelapp.Quit();
//    }
//    catch (Exception exception)
//    {
//        MessageBox.Show(exception.Message);
//    }
//    finally
//    {
//        workBook.Close(Microsoft.Office.Interop.Excel.XlSaveAction.xlSaveChanges, Missing.Value, Missing.Value);
//        excel.Quit();
//    }
//    if (isShowExcle)
//    {
//        System.Diagnostics.Process.Start(fileName);
//    }
//    return true;
//}
//public bool DataSetToExcel(DataSet dataSet, string fileName, bool isShowExcle)
//{
//    DataTable dataTable = dataSet.Tables[0];
//    int rowNumber = dataTable.Rows.Count;//不包括字段名
//    int columnNumber = dataTable.Columns.Count;
/
/    int colIndex = 0;
//    if (rowNumber == 0)
//    {
//        MessageBox.Show("没有任何数据可以导⼊到Excel⽂件！");
//        return false;
//    }
//    //建⽴Excel对象
//    Microsoft.Office.Interop.Excel.Application excel = new Microsoft.Office.Interop.Excel.Application();
//    //excel.Application.Workbooks.Add(true);
//    Microsoft.Office.Interop.Excel.Workbook workbook = excel.Workbooks.Add(Microsoft.Office.Interop.Excel.XlWBATemplate.xlWBATWorksheet);
//    Microsoft.Office.Interop.Excel.Worksheet worksheet = (Microsoft.Office.Interop.Excel.Worksheet)workbook.Worksheets[1];
//    excel.Visible = isShowExcle;
//    //Microsoft.Office.Interop.Excel.Worksheet worksheet = (Microsoft.Office.Interop.Excel.Worksheet)excel.Worksheets[1];
//    worksheet.Name = "挠度数据";
//    Microsoft.Office.Interop.Excel.Range range;
//    //⽣成字段名称
//    foreach (DataColumn col in dataTable.Columns)
//    {
//        colIndex++;
//        excel.Cells[1, colIndex] = col.ColumnName;
//    }
//    object[,] objData = new object[rowNumber, columnNumber];
//    for (int r = 0; r < rowNumber; r++)
//    {
//        for (int c = 0; c < columnNumber; c++)
//        {
//            objData[r, c] = dataTable.Rows[r][c];
//        }
//        //Application.DoEvents();
//    }
//    // 写⼊Excel
/
/    range = _Range(excel.Cells[2, 1], excel.Cells[rowNumber + 1, columnNumber]);
//    //range.NumberFormat = "@";//设置单元格为⽂本格式
//    range.Value2 = objData;
//    _Range(excel.Cells[2, 1], excel.Cells[rowNumber + 1, 1]).NumberFormat = "yyyy-m-d h:mm";
//    //string fileName = path + "\\" + DateTime.Now.ToString().Replace(':', '_') + ".xls";
//    workbook.SaveAs(fileName, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Microsoft.Office.Interop.Excel.XlSaveAsAccess
//    try
//    {
//        workbook.Saved = true;
//        excel.UserControl = false;
//        //excelapp.Quit();
//    }
//    catch (Exception exception)
//    {
//        MessageBox.Show(exception.Message);
//    }
//    finally
//    {
//        workbook.Close(Microsoft.Office.Interop.Excel.XlSaveAction.xlSaveChanges, Missing.Value, Missing.Value);
//        excel.Quit();
//    }
//    //if (isShowExcle)
//    //{
//    //    System.Diagnostics.Process.Start(fileName);
//    //}
//    return true;
//}
/// <summary>
/// 将数据集中的数据保存到EXCEL⽂件
/// </summary>
/// <param name="dataSet">输⼊数据集</param>
/// <param name="fileName">保存EXCEL⽂件的绝对路径名</param>
/
// <param name="isShowExcle">是否打开EXCEL⽂件</param>
/// <returns></returns>
public bool DataSetToExcel(DataSet dataSet, string fileName, bool isShowExcle)
{
DataTable dataTable = dataSet.Tables[0];
int rowNumber = dataTable.Rows.Count;//不包括字段名
int columnNumber = dataTable.Columns.Count;
int colIndex = 0;

版权声明：本站内容均来自互联网，仅供演示用，请勿用于商业和其他非法用途。如果侵犯了您的权益请与我们联系QQ:729038198，我们将在24小时内删除。