数据导入到EXCEL(EXCELHelper)

using System;

using System.Data;

using System.IO;

using System.Windows.Forms;

using Microsoft.Office.Interop.Excel;

namespace zzz.BusinessSystem

{

public static class ExcelHelp

{

/// <summary>

/// DataTable导出到Excel,效率比较慢，是正常格式的Excel

/// </summary>

/// <param name="dt"> DataTable对象</param>

/// <param name="FileName">文件路径+文件名 （例如:"E:\\aa.xlsx"）</param>

public static void DataTable_Excel(System.Data.DataTable dt, string FileName)

{

if (dt == null)

return;

int rowNumber = dt.Rows.Count;

int columnNumber = dt.Columns.Count;

int rowIndex = 1;

int columnIndex = 0;

Microsoft.Office.Interop.Excel.Application xlApp = new Microsoft.Office.Interop.Excel.Application();

//System.Windows.Forms.Application xlapp = new System.Windows.Forms.Application();

xlApp.DefaultFilePath = "";

xlApp.DisplayAlerts = true;

xlApp.SheetsInNewWorkbook = 1;

Workbook xlBook = xlApp.Workbooks.Add(true);

//将DataTable的列明导入Excel的第一行

foreach (DataColumn dc in dt.Columns)

{

columnIndex++;

xlApp.Cells[rowIndex, columnIndex] = dc.ColumnName;

}

//

for (int i = 0; i < rowNumber; i++)

{

rowIndex++;

columnIndex = 0;

for (int j = 0; j < columnNumber; j++)

{

columnIndex++;

xlApp.Cells[rowIndex, columnIndex] = dt.Rows[i][j].ToString();

}

}

//xlSheet.SaveAs(Page.Server.MapPath(".") & "\ExcelFolder\download.xls")

xlBook.SaveAs(FileName);

}

#region winform 导出

public static void win_DataTabletoExcel(System.Data.DataTable tmpDataTable, string strFileName)

{

if (tmpDataTable == null)

return;

int rowNum = tmpDataTable.Rows.Count;

int columnNum = tmpDataTable.Columns.Count;

int rowIndex = 1;

int columnIndex = 0;

Microsoft.Office.Interop.Excel.Application xlApp = new Microsoft.Office.Interop.Excel.Application();

xlApp.DefaultFilePath = "";

xlApp.DisplayAlerts = true;

xlApp.SheetsInNewWorkbook = 1;

Workbook xlBook = xlApp.Workbooks.Add(true);

//将DataTable的列名导入Excel表第一行

foreach (DataColumn dc in tmpDataTable.Columns)

{

columnIndex++;

xlApp.Cells[rowIndex, columnIndex] = dc.ColumnName;

}

//将DataTable中的数据导入Excel中

for (int i = 0; i < rowNum; i++)

{

rowIndex++;

columnIndex = 0;

for (int j = 0; j < columnNum; j++)

{

columnIndex++;

xlApp.Cells[rowIndex, columnIndex] = tmpDataTable.Rows[i][j].ToString();

}

}

//xlBook.SaveCopyAs(HttpUtility.UrlDecode(strFileName, System.Text.Encoding.UTF8));

xlBook.SaveCopyAs(strFileName);

}

public static void Win_DataTableToExcel(System.Data.DataTable dt, string saveFileName)

{

if (dt == null) return;

//-***************获取excel对象***************

//  string saveFileName = "";

TimeSpan dateBegin = new TimeSpan(DateTime.Now.Ticks);

bool fileSaved = false;

SaveFileDialog saveDialog = new SaveFileDialog();

saveDialog.DefaultExt = "xls";

saveDialog.Filter = "Excel文件|*.xls";

saveDialog.FileName = "导入记录查询结果 " + DateTime.Today.ToString("yyyy-MM-dd");

saveDialog.ShowDialog();

saveFileName = saveDialog.FileName;

if (saveFileName.IndexOf(":") < 0) return; //被点了取消

Microsoft.Office.Interop.Excel.Application xlApp = new Microsoft.Office.Interop.Excel.Application();

if (xlApp == null)

{

MessageBox.Show("无法启动Excel，可能您未安装Excel");

return;

}

Microsoft.Office.Interop.Excel.Workbook workbook = xlApp.Workbooks.Add(true);

Microsoft.Office.Interop.Excel.Worksheet worksheet = (Microsoft.Office.Interop.Excel.Worksheet)workbook.Worksheets[1];

Microsoft.Office.Interop.Excel.Range range;

// 列索引，行索引，总列数，总行数

int colIndex = 0;

int RowIndex = 0;

int colCount = dt.Columns.Count;

int RowCount = dt.Rows.Count;

// *****************获取数据*********************

//dataGrid1.CaptionVisible = true;

//dataGrid1.CaptionText = "正在导出数据";

// 创建缓存数据

object[,] objData = new object[RowCount + 1, colCount];

// 获取列标题

for (int i = 0; i < dt.Columns.Count; i++)

{

objData[RowIndex, colIndex++] = dt.Columns[i].Caption; // dgv.Columns[i].HeaderText;

}

// 获取具体数据

for (RowIndex = 1; RowIndex < RowCount; RowIndex++)

{

for (colIndex = 0; colIndex < colCount; colIndex++)

{

objData[RowIndex, colIndex] = dt.Rows[RowIndex - 1][colIndex];

}

}

//********************* 写入Excel*******************

//range = worksheet.get_Range(xlApp.Cells[2, 1], xlApp.Cells[RowCount, colCount]);

//range.Value2 = objData;

range = worksheet.Range[xlApp.Cells[2, 1], xlApp.Cells[RowCount + 1, colCount]];

range.Value = objData;

System.Windows.Forms.Application.DoEvents();

//*******************设置输出格式******************************

//设置顶部説明   合并的单元格

range = worksheet.get_Range(xlApp.Cells[1, 1], xlApp.Cells[1, colCount]);

range.MergeCells = true;

range.RowHeight = 38;

range.Font.Bold = true;

range.Font.Size = 14;

range.Font.ColorIndex = 10;//字体颜色

xlApp.ActiveCell.FormulaR1C1 = "导入记录查询结果";

//特殊数字格式

range = worksheet.get_Range(xlApp.Cells[2, colCount], xlApp.Cells[RowCount, colCount]);

// range.NumberFormat = "yyyy-MM-dd hh:mm:ss";

xlApp.Cells.HorizontalAlignment = Microsoft.Office.Interop.Excel.Constants.xlCenter;

range = worksheet.get_Range(xlApp.Cells[2, 1], xlApp.Cells[2, colCount]);

//  range.Interior.ColorIndex = 10;//背景色

range.Font.Bold = true;

range.RowHeight = 20;

if (saveFileName != "")

{

try

{

workbook.Saved = true;

workbook.SaveCopyAs(saveFileName);

fileSaved = true;

}

catch (Exception ex)

{

fileSaved = false;

MessageBox.Show("导出文件时出错,文件可能正被打开！\n" + ex.Message);

}

}

else

{

fileSaved = false;

}

xlApp.Quit();

GC.Collect();//强行销毁

TimeSpan dateEnd = new TimeSpan(DateTime.Now.Ticks);

TimeSpan tspan = dateBegin.Subtract(dateEnd).Duration();

MessageBox.Show("导出成功，用时" + tspan.ToString() + "秒");

if (fileSaved && System.IO.File.Exists(saveFileName))

System.Diagnostics.Process.Start(saveFileName); //保存成功后打开此文件

}

public static void Win_ExportExcel(System.Data.DataTable dt, string fileName)

{

if (dt == null) return;

string saveFileName = "";

bool fileSaved = false;

SaveFileDialog saveDialog = new SaveFileDialog();

saveDialog.DefaultExt = "xls";

saveDialog.Filter = "Excel文件|*.xls";

saveDialog.FileName = fileName + DateTime.Now.ToString("yyyyMMddhhmmss");

saveDialog.ShowDialog();

saveFileName = saveDialog.FileName;

if (saveFileName.IndexOf(":") < 0) return; //被点了取消

Microsoft.Office.Interop.Excel.Application xlApp = new Microsoft.Office.Interop.Excel.Application();

if (xlApp == null)

{

MessageBox.Show("无法创建Excel对象，可能您的机子未安装Excel");

return;

}

Workbooks workbooks = xlApp.Workbooks;

Workbook workbook = workbooks.Add(XlWBATemplate.xlWBATWorksheet);

Worksheet worksheet = (Worksheet)workbook.Worksheets[1];//取得sheet1

Range range;

string oldCaption = DateTime.Now.ToString("yyyy-MM-dd");

long totalCount = dt.Rows.Count;

long rowRead = 0;

float percent = 0;

worksheet.Cells[1, 1] = DateTime.Now.ToString("yyyy-MM-dd");

//写入字段

for (int i = 0; i < dt.Columns.Count; i++)

{

worksheet.Cells[2, i + 1] = dt.Columns[i].ColumnName;

range = (Range)worksheet.Cells[2, i + 1];

range.Interior.ColorIndex = 15;

range.Font.Bold = true;

}

//写入数值

for (int r = 0; r < dt.Rows.Count; r++)

{

for (int i = 0; i < dt.Columns.Count; i++)

{

if (dt.Rows[r][i].GetType().FullName == "System.DateTime")

{

worksheet.Cells[r + 3, i + 1] = dt.Rows[r][i].ToString();

}

else

{

worksheet.Cells[r + 3, i + 1] = dt.Rows[r][i];

}

}

rowRead++;

percent = ((float)(100 * rowRead)) / totalCount;

//this.lbl_process.Text = "正在导出数据[" + percent.ToString("0.00") + "%]..."; //这里可以自己做一个label用来显示进度.

System.Windows.Forms.Application.DoEvents();

}

//this.lbl_process.Visible = false;

range = worksheet.Range[worksheet.Cells[2, 1], worksheet.Cells[dt.Rows.Count + 2, dt.Columns.Count]];

range.BorderAround(XlLineStyle.xlContinuous, XlBorderWeight.xlThin, XlColorIndex.xlColorIndexAutomatic, null);

range.Borders[XlBordersIndex.xlInsideHorizontal].ColorIndex = XlColorIndex.xlColorIndexAutomatic;

range.Borders[XlBordersIndex.xlInsideHorizontal].LineStyle = XlLineStyle.xlContinuous;

range.Borders[XlBordersIndex.xlInsideHorizontal].Weight = XlBorderWeight.xlThin;

if (dt.Columns.Count > 1)

{

range.Borders[XlBordersIndex.xlInsideVertical].ColorIndex = XlColorIndex.xlColorIndexAutomatic;

range.Borders[XlBordersIndex.xlInsideVertical].LineStyle = XlLineStyle.xlContinuous;

range.Borders[XlBordersIndex.xlInsideVertical].Weight = XlBorderWeight.xlThin;

}

if (saveFileName != "")

{

try

{

workbook.Saved = true;

workbook.SaveCopyAs(saveFileName);

fileSaved = true;

}

catch (Exception ex)

{

fileSaved = false;

MessageBox.Show("导出文件时出错,文件可能正被打开！\n" + ex.Message);

}

}

else

{

fileSaved = false;

}

xlApp.Quit();

GC.Collect();//强行销毁

if (fileSaved && File.Exists(saveFileName))

{

//System.Diagnostics.Process.Start(saveFileName);

MessageBox.Show("数据导出成功！", "美承零售系统");

}

}

public static void Win_DataGridViewToExcel(DataGridView dgv)

{

SaveFileDialog dlg = new SaveFileDialog();

string saveFileName = "";

bool fileSaved = false;

dlg.Filter = "Execl files (*.xls)|*.xls";

dlg.FilterIndex = 0;

dlg.RestoreDirectory = true;

dlg.CreatePrompt = true;

dlg.Title = "保存为Excel文件";

dlg.FileName = "导出数据" + DateTime.Now.ToString("yyyyMMddhhmmss");

Microsoft.Office.Interop.Excel.Application xlApp = new Microsoft.Office.Interop.Excel.Application();

if (xlApp == null)

{

MessageBox.Show("无法创建Excel对象，可能您的机子未安装Excel");

return;

}

if (dgv.Rows.Count == 0)

return;

if (dlg.ShowDialog() == DialogResult.OK)

{

saveFileName = dlg.FileName;

if (saveFileName.IndexOf(":") < 0) return; //被点了取消

Stream myStream;

myStream = dlg.OpenFile();

StreamWriter sw = new StreamWriter(myStream, System.Text.Encoding.GetEncoding(-0));

string columnTitle = "";

try

{

//写入列标题

for (int i = 0; i < dgv.ColumnCount; i++)

{

if (dgv.Columns[i].Visible == true)

{

if (i > 0)

{

columnTitle += "\t";

}

columnTitle += dgv.Columns[i].HeaderText;

}

}

sw.WriteLine(columnTitle);

//写入列内容

for (int j = 0; j < dgv.Rows.Count; j++)

{

string columnValue = "";

for (int k = 0; k < dgv.Columns.Count; k++)

{

if (dgv.Columns[k].Visible == true)

{

if (k > 0)

{

columnValue += "\t";

}

if (dgv.Rows[j].Cells[k].Value == null)

columnValue += "";

else

columnValue += dgv.Rows[j].Cells[k].Value.ToString().Trim();

}

}

sw.WriteLine(columnValue);

}

fileSaved = true;

}

catch (Exception e)

{

fileSaved = false;

MessageBox.Show(e.ToString(), "美承零售系统", MessageBoxButtons.OK, MessageBoxIcon.Asterisk);

}

finally

{

sw.Close();

myStream.Close();

}

if (fileSaved && File.Exists(saveFileName))

{

MessageBox.Show("数据导出成功！", "美承零售系统", MessageBoxButtons.OK, MessageBoxIcon.Asterisk);

}

}

}

/// <summary>

/// 到处数据 lihui

/// </summary>

/// <param name="dt"></param>

/// <param name="strFileName"></param>

public static void Win_DataTabletoExcel1(System.Data.DataTable dt, string strFileName)

{

if (dt == null) return;

SaveFileDialog saveDialog = new SaveFileDialog();

saveDialog.DefaultExt = "xls";

saveDialog.Filter = "Excel文件|*.xls";

saveDialog.FileName = strFileName + DateTime.Now.ToString("yyyyMMddhhmmss");

if (saveDialog.ShowDialog() == DialogResult.Cancel)

{

return;

}

string saveFileName = "";

bool fileSaved = false;

Microsoft.Office.Interop.Excel.Application xlApp;

Workbooks workbooks;

Workbook workbook;

Worksheet worksheet;

Range range;

saveFileName = saveDialog.FileName;

xlApp = new Microsoft.Office.Interop.Excel.Application();

if (xlApp == null)

{

MessageBox.Show("无法创建Excel对象，可能您的机器未安装Excel");

return;

}

workbooks = xlApp.Workbooks;

workbook = workbooks.Add(XlWBATemplate.xlWBATWorksheet);

worksheet = (Worksheet)workbook.Worksheets[1];//取得sheet1

// string oldCaption = DateTime.Now.ToString("yyyy-MM-dd");

long totalCount = dt.Rows.Count;

long rowRead = 0;

float percent = 0;

worksheet.Cells[1, 1] = string.Format("日期:{0}",DateTime.Now.ToString("yyyy-MM-dd"));

//写入字段

for (int i = 0; i < dt.Columns.Count; i++)

{

worksheet.Cells[2, i + 1] = dt.Columns[i].ColumnName;

range = (Range)worksheet.Cells[2, i + 1];

range.Interior.ColorIndex = 15;

range.Font.Bold = true;

}

//写入数值

for (int r = 0; r < dt.Rows.Count; r++)

{

for (int i = 0; i < dt.Columns.Count; i++)

{

if (dt.Rows[r][i].GetType().FullName == "System.DateTime")

{

worksheet.Cells[r + 3, i + 1] = dt.Rows[r][i].ToString();

}

else

{

range = (Range)worksheet.Cells[r + 3, i + 1];

range.NumberFormat = "@";

worksheet.Cells[r + 3, i + 1] = dt.Rows[r][i];

}

}

rowRead++;

percent = ((float)(100 * rowRead)) / totalCount;

System.Windows.Forms.Application.DoEvents();

}

range = worksheet.Range[worksheet.Cells[2, 1], worksheet.Cells[dt.Rows.Count + 2, dt.Columns.Count]];

range.BorderAround(XlLineStyle.xlContinuous, XlBorderWeight.xlThin, XlColorIndex.xlColorIndexAutomatic, null);

range.Borders[XlBordersIndex.xlInsideHorizontal].ColorIndex = XlColorIndex.xlColorIndexAutomatic;

range.Borders[XlBordersIndex.xlInsideHorizontal].LineStyle = XlLineStyle.xlContinuous;

range.Borders[XlBordersIndex.xlInsideHorizontal].Weight = XlBorderWeight.xlThin;

if (dt.Columns.Count > 1)

{

range.Borders[XlBordersIndex.xlInsideVertical].ColorIndex = XlColorIndex.xlColorIndexAutomatic;

range.Borders[XlBordersIndex.xlInsideVertical].LineStyle = XlLineStyle.xlContinuous;

range.Borders[XlBordersIndex.xlInsideVertical].Weight = XlBorderWeight.xlThin;

}

if (saveFileName != "")

{

try

{

workbook.Saved = true;

workbook.SaveCopyAs(saveFileName);

fileSaved = true;

}

catch (Exception ex)

{

fileSaved = false;

MessageBox.Show("导出文件时出错,文件可能正被打开！\n" + ex.Message);

}

}

else

{

fileSaved = false;

}

xlApp.Quit();

GC.Collect();//强行销毁

if (fileSaved && File.Exists(saveFileName))

{

MessageBox.Show("数据导出成功！", "美承零售系统");

}

}

/// <summary>

/// 导出无标题数据 周吉敏---销售发票列表中导出出库明细

/// </summary>

/// <param name="dt"></param>

/// <param name="strFileName"></param>

public static void Win_StocktoExcel(System.Data.DataTable dt, string strFileName)

{

if (dt == null) return;

SaveFileDialog saveDialog = new SaveFileDialog();

saveDialog.DefaultExt = "xls";

saveDialog.Filter = "Excel文件|*.xls";

saveDialog.FileName = strFileName;

if (saveDialog.ShowDialog() == DialogResult.Cancel)

{

return;

}

string saveFileName = "";

bool fileSaved = false;

Microsoft.Office.Interop.Excel.Application xlApp;

Workbooks workbooks;

Workbook workbook;

Worksheet worksheet;

Range range;

saveFileName = saveDialog.FileName;

xlApp = new Microsoft.Office.Interop.Excel.Application();

if (xlApp == null)

{

MessageBox.Show("无法创建Excel对象，可能您的机器未安装Excel");

return;

}

workbooks = xlApp.Workbooks;

workbook = workbooks.Add(XlWBATemplate.xlWBATWorksheet);

worksheet = (Worksheet)workbook.Worksheets[1];//取得sheet1

// string oldCaption = DateTime.Now.ToString("yyyy-MM-dd");

long totalCount = dt.Rows.Count;

long rowRead = 0;

float percent = 0;

// worksheet.Cells[1, 1] = string.Format("日期:{0}", DateTime.Now.ToString("yyyy-MM-dd"));

//写入字段

for (int i = 0; i < dt.Columns.Count; i++)

{

worksheet.Cells[1, i + 1] = dt.Columns[i].ColumnName;

range = (Range)worksheet.Cells[1, i + 1];

range.Interior.ColorIndex = 15;

range.Font.Bold = true;

}

//写入数值

for (int r = 0; r < dt.Rows.Count; r++)

{

for (int i = 0; i < dt.Columns.Count; i++)

{

if (dt.Rows[r][i].GetType().FullName == "System.DateTime")

{

worksheet.Cells[r + 2, i + 1] = dt.Rows[r][i].ToString();

}

else

{

range = (Range)worksheet.Cells[r + 2, i + 1];

range.NumberFormat = "@";

worksheet.Cells[r + 2, i + 1] = dt.Rows[r][i];

}

}

rowRead++;

percent = ((float)(100 * rowRead)) / totalCount;

System.Windows.Forms.Application.DoEvents();

}

range = worksheet.Range[worksheet.Cells[2, 1], worksheet.Cells[dt.Rows.Count + 1, dt.Columns.Count]];

range.BorderAround(XlLineStyle.xlContinuous, XlBorderWeight.xlThin, XlColorIndex.xlColorIndexAutomatic, null);

range.Borders[XlBordersIndex.xlInsideHorizontal].ColorIndex = XlColorIndex.xlColorIndexAutomatic;

range.Borders[XlBordersIndex.xlInsideHorizontal].LineStyle = XlLineStyle.xlContinuous;

range.Borders[XlBordersIndex.xlInsideHorizontal].Weight = XlBorderWeight.xlThin;

if (dt.Columns.Count > 1)

{

range.Borders[XlBordersIndex.xlInsideVertical].ColorIndex = XlColorIndex.xlColorIndexAutomatic;

range.Borders[XlBordersIndex.xlInsideVertical].LineStyle = XlLineStyle.xlContinuous;

range.Borders[XlBordersIndex.xlInsideVertical].Weight = XlBorderWeight.xlThin;

}

if (saveFileName != "")

{

try

{

workbook.Saved = true;

workbook.SaveCopyAs(saveFileName);

fileSaved = true;

}

catch (Exception ex)

{

fileSaved = false;

MessageBox.Show("导出文件时出错,文件可能正被打开！\n" + ex.Message);

}

}

else

{

fileSaved = false;

}

xlApp.Quit();

GC.Collect();//强行销毁

if (fileSaved && File.Exists(saveFileName))

{

MessageBox.Show("数据导出成功！", "美承进销存系统");

}

}

#endregion

}

}

时间： 2024-08-27 07:11:50

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