引用Microsoft.Office.Interop.Excel.dll才能编译。
/// <summary>
/// </summary>
/// <param name="filename"></param>
public bool WriteXls(string filename,int count,string code,string name)
{
//启动Excel应用程序
Microsoft.Office.Interop.Excel.Application xls = new Microsoft.Office.Interop.Excel.Application();
_Workbook book = xls.Workbooks.Add(Missing.Value); //创建一张表,一张表可以包含多个sheet
_Worksheet sheet;//定义sheet变量
xls.Visible = false;//设置Excel后台运行
xls.DisplayAlerts = false;//设置不显示确认修改提示
for (int i = 1; i <= 1; i++)//循环创建并写入数据到sheet
{
try
{
sheet = (_Worksheet)book.Worksheets.get_Item(i);//获得第i个sheet,准备写入
}
catch (Exception ex)//不存在就增加一个sheet
{
sheet = (_Worksheet)book.Worksheets.Add(Missing.Value, book.Worksheets[book.Sheets.Count], 1, Missing.Value);
}
sheet.Name = "第" + i.ToString() + "页";//设置当前sheet的Name
string[] codes = code.Split(';');
string[] names = name.Split(';');
for (int row = 1; row <= count; row++)//循环设置每个单元格的值
{
sheet.Cells[row, 1] = codes[row-1];
sheet.Cells[row, 2] = names[row-1];
}
}
//将表另存为
book.SaveAs(filename, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, XlSaveAsAccessMode.xlNoChange, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value);
//如果表已经存在,直接用下面的命令保存即可
//book.Save();
book.Close(false, Missing.Value, Missing.Value);//关闭打开的表
xls.Quit();//Excel程序退出
//sheet,book,xls设置为null,防止内存泄露
sheet = null;
book = null;
xls = null;
GC.Collect();//系统回收资源
return true;
}
//读取
public
static
Array ReadXls(
string
filename,
int
index)
//读取第index个sheet的数据
{
//启动Excel应用程序
Microsoft.Office.Interop.Excel.Application xls =
new
Microsoft.Office.Interop.Excel.Application();
//打开filename表
_Workbook book = xls.Workbooks.Open(filename, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value);
_Worksheet sheet;
//定义sheet变量
xls.Visible =
false
;
//设置Excel后台运行
xls.DisplayAlerts =
false
;
//设置不显示确认修改提示
try
{
sheet = (_Worksheet)book.Worksheets.get_Item(index);
//获得第index个sheet,准备读取
}
catch
(Exception ex)
//不存在就退出
{
Console.WriteLine(ex.Message);
return
null
;
}
Console.WriteLine(sheet.Name);
int
row = sheet.UsedRange.Rows.Count;
//获取不为空的行数
int
col = sheet.UsedRange.Columns.Count;
//获取不为空的列数
Array value = (Array)sheet.get_Range(sheet.Cells[1, 1], sheet.Cells[row, col]).Cells.Value2;
//获得区域数据赋值给Array数组,方便读取
book.Save();
//保存
book.Close(
false
, Missing.Value, Missing.Value);
//关闭打开的表
xls.Quit();
//Excel程序退出
//sheet,book,xls设置为null,防止内存泄露
sheet =
null
;
book =
null
;
xls =
null
;
GC.Collect();
//系统回收资源
return
value;
}