C#從數據庫導出數據[excel]
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Data;
using MySql.Data.MySqlClient;
using Microsoft.Office.Interop.Excel;
using Excel = Microsoft.Office.Interop.Excel; //使用命名空間別名
using System.Reflection;
namespace _01
{
class Tools
{
static void
{
if(ExportDataTableToExcel(SqlHelper.ExecuteTable("SELECT * FROM students", CommandType.Text, null),@"E:\03.xls"))
{
Console.WriteLine("OK!");
}
else{
Console.WriteLine("Fail!");
}
}
public static boolExportDataTableToExcel(System.Data.DataTable dt, stringfilepath)
{
Excel.ApplicationoXL; //應用
Excel.Workbook oWB; //工作簿
Excel.WorksheetoSheet; //工作表
Excel.Range oRange;
try
{
// Start Excel and get Application object.
oXL = new Excel.Application(); //啟動並且創建對象
// Set some properties
oXL.Visible = true;
oXL.DisplayAlerts = false; //設置警告信息的默認值
// Get a new workbook.
oWB = oXL.Workbooks.Add(Missing.Value);
// Get the Active sheet
oSheet = (Excel.Worksheet)oWB.ActiveSheet;
oSheet.Name = "Data";
introwCount = 1;
foreach(DataRow dr in dt.Rows)
{
rowCount += 1;
for(int i = 1; i < dt.Columns.Count +1; i++)
{
// Add the header the first timethrough
if (rowCount ==2)
{
oSheet.Cells[1, i] = dt.Columns[i -1].ColumnName;
}
oSheet.Cells[rowCount, i] = dr[i - 1].ToString();
}
}
// Resize the columns
oRange = oSheet.Range[oSheet.Cells[1,1],
oSheet.Cells[rowCount, dt.Columns.Count]];
oRange.EntireColumn.AutoFit();
// Save the sheet and close
oSheet = null;
oRange = null;
oWB.SaveAs(filepath, Excel.XlFileFormat.xlWorkbookNormal,
Missing.Value, Missing.Value,Missing.Value, Missing.Value,
Excel.XlSaveAsAccessMode.xlExclusive,
Missing.Value, Missing.Value,Missing.Value,
Missing.Value, Missing.Value);
oWB.Close(Missing.Value,Missing.Value, Missing.Value);
oWB = null;
oXL.Quit();
}
catch
{
throw;
}
finally
{
// Clean up
// NOTE: When in release mode, this does thetrick
GC.WaitForPendingFinalizers();
GC.Collect();
GC.WaitForPendingFinalizers();
GC.Collect();
}
returntrue;
}
}
}
Tips:SqlHelper未提供。
本文出自 “禦八面之風，駕舟而行” 博客，請務必保留此出處http://germa66.blog.51cto.com/12942227/1971215
C#從數據庫導出數據[excel]