C#導出EXCEL，並生成charts表

需要添加引用  Microsoft.Office.Interop.Excel

注意：使用Microsoft.Office.Interop.Excel 非常耗時。對性能有要求建議用其他。

如果要用，把數據轉成字符串拷貝到剪貼板中，然后把剪貼板數據粘貼到sheet表中即可，幾十萬數據秒級。下面有講到怎么轉換字符串拷貝與粘貼。

 

 

代碼部分

 

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

/******************************************************************* 
* Copyright (C)  版權所有
* 文件名稱:ExcelManage
* 命名空間:WindowsFormsApplication3
* 創建時間:2019/3/4 15:20:27
* 作    者: wangyonglai
* 描    述：
* 修改記錄:
* 修改人:
* 版 本 號:v1.0.0
**********************************************************************/
namespace WindowsFormsApplication3
{
    //替代名稱
    using Excel = Microsoft.Office.Interop.Excel;//替代名稱
    using Missing = System.Reflection.Missing;
    class ExcelManage
    {
        public System.Data.DataSet dataSet = new System.Data.DataSet();

        public void InitalTable()
        {
            System.Data.DataTable table = new System.Data.DataTable();
            table.Columns.Add("序號", typeof(int));
            table.Columns.Add("數據1", typeof(int));
            table.Columns.Add("數據2", typeof(int));
            Random r = new Random();
            for (int i = 0; i < 200; i++)
            {
                if (i == 6 || i == 16) continue;
                table.Rows.Add(i + 1, r.Next(50), r.Next(60));
            }

            dataSet.Tables.Add(table);

            //ExportExcel(dataSet);
        }

        public void ExportExcel(System.Data.DataSet ds)
        {
            //新建EXCEL應用
            Excel.Application excelApp = new Excel.Application();
            if (excelApp == null)
                return;

            //設置為不可見，操作在后台執行，為 true 的話會打開 Excel
            excelApp.Visible = false;
            //初始化工作簿
            Excel.Workbooks workbooks = excelApp.Workbooks;
            //新增加一個工作簿，Add（）方法也可以直接傳入參數 true
            //Excel.Workbook workbook = workbooks.Add(Excel.XlWBATemplate.xlWBATWorksheet);
            //同樣是新增一個工作簿，但是會彈出保存對話框
            Excel.Workbook workbook = workbooks.Add(true);

            //Excel.Worksheet c_worksheet = workbook.Worksheets[1];
            //int a = workbook.Worksheets.Count;

            //workbook.Sheets.Add(Missing.Value, workbook.Sheets[1], ds.Tables.Count - 1, Missing.Value);

            for (int index = 0; index < ds.Tables.Count; index++)
            {
                System.Data.DataTable dt = ds.Tables[index];
                Excel.Worksheet worksheet = workbook.Worksheets.Add();
                //Excel.Worksheet worksheet = workbook.Worksheets[index + 1];

                //創建一個單元格
                Excel.Range range;
                int rowIndex = 1;       //行的起始下標為 1
                int colIndex = 1;       //列的起始下標為 1
                for (int i = 0; i < dt.Columns.Count; i++)
                {
                    //設置第一行，即列名
                    worksheet.Cells[rowIndex, colIndex + i] = dt.Columns[i].ColumnName;
                    //獲取第一行的每個單元格
                    range = worksheet.Cells[rowIndex, colIndex + i];
                    //字體加粗
                    range.Font.Bold = true;
                    //設置為黑色
                    range.Font.Color = 0;
                    //設置為宋體
                    range.Font.Name = "Arial";
                    //設置字體大小
                    range.Font.Size = 12;
                    //水平居中
                    range.HorizontalAlignment = Microsoft.Office.Interop.Excel.XlHAlign.xlHAlignCenter;
                    //垂直居中
                    range.VerticalAlignment = Microsoft.Office.Interop.Excel.XlVAlign.xlVAlignCenter;
                    
                }
                //跳過第一行，第一行寫入了列名
                rowIndex++;
                //寫入數據
                for (int i = 0; i < dt.Rows.Count; i++)
                {
                    for (int j = 0; j < dt.Columns.Count; j++)
                    {
                        worksheet.Cells[rowIndex + i, colIndex + j] = dt.Rows[i][j].ToString();

                        range = worksheet.Cells[rowIndex + i, colIndex + j];
                        range.Interior.Color = System.Drawing.Color.Yellow;
                        range.Cells.Borders.LineStyle = Excel.XlLineStyle.xlContinuous;
                        range.Borders.Weight = Excel.XlBorderWeight.xlHairline;//邊框常規粗細  
                    }
                }

                //設置所有單元格列寬為自動列寬
                worksheet.Cells.Columns.AutoFit();

                #region 凍結行

                worksheet.Select();
                excelApp.ActiveWindow.SplitRow = 1;
                excelApp.ActiveWindow.SplitColumn = 0;
                excelApp.ActiveWindow.FreezePanes = true;

                #endregion

                #region 合並行
                //Excel.Range mergeRange = worksheet.get_Range("A25", "B25");
                //mergeRange.Merge();
                /////合並單元格之后，設置其中的文本
                //mergeRange.Value = "mergeRange";

                #endregion

                
                #region 繪制CHART圖表
                int num = dt.Rows.Count + 1;
                Excel.Chart xlChart = workbook.Charts.Add(Missing.Value, Missing.Value, 1, Missing.Value);
                Excel.Range ranges1 = worksheet.Cells[1, 1];
                Excel.Range ranges2 = worksheet.Cells[num, dt.Columns.Count];
                Excel.Range chartRage = worksheet.get_Range(ranges1, ranges2);

                xlChart.ChartWizard(chartRage, Excel.XlChartType.xlLine, Missing.Value,
                                    Excel.XlRowCol.xlColumns, 1, 1, 
                                    Missing.Value, Missing.Value, "X值", "Y值", Missing.Value);

                workbook.ActiveChart.HasTitle = true;
                workbook.ActiveChart.ChartTitle.Text = "圖表名稱";
                workbook.ActiveChart.HasDataTable = false;
                //給圖表放在指定位置
                //workbook.ActiveChart.Location(Excel.XlChartLocation.xlLocationAsObject, worksheet.Name);

                xlChart.Name = "CC1";
                #endregion
                
                //workbook.Worksheets.Item(
                
            }

            //是否提示，如果想刪除某個sheet頁，首先要將此項設為fasle。
            excelApp.DisplayAlerts = false;

            //保存寫入的數據，這里還沒有保存到磁盤
            workbook.Saved = true;

            workbook.SaveCopyAs(@"C:\Users\Lenovo\Desktop\sample.xlsx");
            workbook.Close();
            excelApp.Quit();

            System.Runtime.InteropServices.Marshal.ReleaseComObject(workbook);
            System.Runtime.InteropServices.Marshal.ReleaseComObject(excelApp);

            workbook = null;
            //worksheet = null;
            //shapeSheet = null;
            excelApp = null;
            GC.Collect();
        }
    }
}

　　

 效果

 

 最后由於此方法寫入時非常耗時，我們可以采用先把數據轉成字符串拷貝到剪貼板中，然后在復制到sheet表中，這樣十萬數據只要幾秒鍾

代碼

public void ExportExcel()
        {
            System.Data.DataTable dt = new System.Data.DataTable();
            dt.Columns.Add("序號", typeof(int));
            dt.Columns.Add("數據1", typeof(int));
            dt.Columns.Add("數據2", typeof(int));
            Random r = new Random();
            for (int i = 0; i < 20000; i++)
            {
                if (i == 6 || i == 16) continue;
                dt.Rows.Add(i + 1, r.Next(50), r.Next(60));
            }

            StringBuilder strbu = new StringBuilder();

            //寫入標題
            for (int i = 0; i < dt.Columns.Count; i++)
            {
                strbu.Append(dt.Columns[i].ColumnName.ToString() + "\t");
            }

            //加入換行字符串
            strbu.Append(Environment.NewLine);
            //寫入內容
            for (int i = 0; i < dt.Rows.Count; i++)
            {
                for (int j = 0; j < dt.Columns.Count; j++)
                {
                    strbu.Append(dt.Rows[i][j].ToString() + "\t");
                }
                strbu.Append(Environment.NewLine);
            }

            System.Windows.Forms.Clipboard.SetText(strbu.ToString());

            //新建EXCEL應用
            Excel.Application excelApp = new Excel.Application();
            if (excelApp == null)
                return;

            //設置為不可見，操作在后台執行，為 true 的話會打開 Excel
            excelApp.Visible = false;
            //初始化工作簿
            Excel.Workbooks workbooks = excelApp.Workbooks;
            //新增加一個工作簿，Add（）方法也可以直接傳入參數 true
            Excel.Workbook workbook = workbooks.Add(Excel.XlWBATemplate.xlWBATWorksheet);
            //同樣是新增一個工作簿，但是會彈出保存對話框
            //Excel.Workbook workbook = workbooks.Add(true);

            //Excel.Worksheet worksheet = workbook.Worksheets[1];
            Excel.Worksheet worksheet = workbook.Worksheets.Add();

            //Excel.Range ranges1 = worksheet.Cells[1, 1];
            //Excel.Range ranges2 = worksheet.Cells[dt.Rows.Count + 1, dt.Columns.Count];
            //Excel.Range chartRage = worksheet.get_Range(ranges1, ranges2);
            //Excel.Range range = worksheet.get_Range(worksheet.Cells[1, 1], worksheet.Cells[dt.Rows.Count+1, dt.Columns.Count]);
            //chartRage.Copy(strbu.ToString());
            //ranges1.Value = System.Windows.Forms.Clipboard.GetText();
            //worksheet.Activate();
            worksheet.Paste();
            //worksheet.PasteSpecial(System.Windows.Forms.Clipboard.GetText(), false, false);
            


            //新建一個 Excel 文件
            string filePath = @"C:\Users\Lenovo\Desktop\" + DateTime.Now.ToString("yyyy-MM-dd-HH-mm-ss") + ".xlsx";
            //創建文件
            FileStream file = new FileStream(filePath, FileMode.CreateNew);
            //關閉釋放流，不然沒辦法寫入數據
            file.Close();
            file.Dispose();

            //保存寫入的數據，這里還沒有保存到磁盤
            workbook.Saved = true;
            //保存到指定的路徑
            workbook.SaveCopyAs(filePath);
        }

　　

 

 

 private void WriteDataToExcel
{
            Microsoft.Office.Interop.Excel.Application excelApp = new Microsoft.Office.Interop.Excel.Application();
            DataTable dataTable1 = this.GetTabel1();//獲取表格2

            Microsoft.Office.Interop.Excel.Application excelApp;
            Microsoft.Office.Interop.Excel._Workbook workBook;
            Microsoft.Office.Interop.Excel._Worksheet workSheet;
            Microsoft.Office.Interop.Excel._Worksheet workSheet1; 
            object misValue = System.Reflection.Missing.Value;
            workBook = excelApp.Workbooks.Add(misValue);//加載模型
            
            workSheet = (Microsoft.Office.Interop.Excel._Worksheet)workBook.Sheets.get_Item(1);//第一個工作薄。

            workSheet1 = (Microsoft.Office.Interop.Excel._Worksheet)workBook.Sheets.get_Item(2);

            int rowIndex = 0;
            int colIndex = 0;
            foreach (DataRow row in dataTable.Rows)
            {
                rowIndex++;
                colIndex = 0;
                foreach (DataColumn col in dataTable.Columns)
                {
                    colIndex++;
                    workSheet.Cells[rowIndex, colIndex] = row[col.ColumnName].ToString().Trim();
                   
                }
            }

            rowIndex = 0;
            colIndex = 0;
            foreach (DataRow row in dataTable1.Rows)
            {
                rowIndex++;
                colIndex = 0;
                foreach (DataColumn col in dataTable1.Columns)
                {
                    colIndex++;
                    workSheet1.Cells[rowIndex, colIndex] = row[col.ColumnName].ToString().Trim();

                }
            }

　　　　　　　　
 　　　　　　 workSheet.Protect("MyPassword", Type.Missing, Type.Missing, Type.Missing,
                              Type.Missing, Type.Missing, Type.Missing, Type.Missing,
                              Type.Missing, Type.Missing, Type.Missing, Type.Missing,
                              Type.Missing, true, Type.Missing, Type.Missing);

            //保護工作表
            workSheet1.Protect("MyPassword", Type.Missing, Type.Missing, Type.Missing,
                              Type.Missing, Type.Missing, Type.Missing, Type.Missing,
                              Type.Missing, Type.Missing, Type.Missing, Type.Missing,
                              Type.Missing, true, Type.Missing, Type.Missing);

            /**/

            excelApp.Visible = false;

            workBook.SaveAs(@"D:\outputFormDataBase1.xls", Microsoft.Office.Interop.Excel.XlFileFormat.xlWorkbookNormal, misValue,
                misValue, misValue, misValue, Microsoft.Office.Interop.Excel.XlSaveAsAccessMode.xlExclusive,
                misValue, misValue, misValue, misValue, misValue);

            dataTable = null;

            workBook.Close(true, misValue, misValue);

            excelApp.Quit();

            PublicMethod.Kill(excelApp);//調用kill當前excel進程  
 

}    

 

有興趣的可以看看 https://www.cnblogs.com/junshijie/p/5292087.html 這篇文章，里面有更詳細如何操作EXCEL。