c# 将sql表内容导出到Excel解决方法

c# 将sql表内容导出到Excel
我做了一个winform现在希望通过点击按钮把sql里指定表（手动指定要如何设计？）的数据导出到Excel。
还有一个是点击把datagridview里面的数据导出到excel怎么写，还请大家指点一下～

[解决办法]

C# code

        private void SaveAs(DataGridView dgvAgeWeekSex)        {            SaveFileDialog saveFileDialog = new SaveFileDialog();            saveFileDialog.Filter = "Execl 97-2003 (*.xls)|*.xls|Execl 2007 (*.xlsx)|*.xlsx";            saveFileDialog.FilterIndex = 0;            saveFileDialog.RestoreDirectory = true;            saveFileDialog.CreatePrompt = true;            saveFileDialog.Title = "Netbor Export Dialog";            saveFileDialog.ShowDialog();            Stream myStream;            myStream = saveFileDialog.OpenFile();            StreamWriter sw = new StreamWriter(myStream, System.Text.Encoding.GetEncoding(-0));            string str = "";            try            {                for (int i = 0; i < dgvAgeWeekSex.ColumnCount; i++)                {                    if (i > 0)                    {                        str += "\t";                    }                    str += dgvAgeWeekSex.Columns[i].HeaderText;                }                sw.WriteLine(str);                for (int j = 0; j < dgvAgeWeekSex.Rows.Count; j++)                {                    string tempStr = "";                    for (int k = 0; k < dgvAgeWeekSex.Columns.Count; k++)                    {                        if (k > 0)                        {                            tempStr += "\t";                        }                        tempStr += dgvAgeWeekSex.Rows[j].Cells[k].Value.ToString();                    }                    sw.WriteLine(tempStr);                }                sw.Close();                myStream.Close();            }            catch (Exception e)            {                MessageBox.Show(e.ToString());            }            finally            {                sw.Close();                myStream.Close();            }        }
[解决办法]
用oledb连接你的excel(需要事先创建一个模板,即带有标题列)
把sql server的数据读到datatable或者reader里,循环结果集,拼insert sql语句来写入xls文件.
最后把连接关掉
dgv也一样,如果数据源是dataset或者datatable就如上炮制,要么就循环dgv的rows,然后还是取每个cell的值来拼sql
[解决办法]
private void button1_Click(object sender, EventArgs e)
       {
           string pathName = System.Windows.Forms.Application.StartupPath.Trim();
           string dateTime = txtdatatime.Text.Split(char.Parse("-"))[0] + "年" + txtdatatime.Text.Split(char.Parse("-"))[1] + "月";

           int count = 0;
           FileInfo mode = new FileInfo(pathName + "\\model\\Name.xls");
           try
           {
               mode.CopyTo(pathName + "\\temp\\" + dateTime + " 产品名称.xls", true);
           }
           catch (Exception ex)
           {
               MessageBox.Show(ex.Message, "系统提示", MessageBoxButtons.OK, MessageBoxIcon.Error);
               return;
           }
           object ming = Type.Missing;
           Excel.Application myExcel = new Microsoft.Office.Interop.Excel.Application();
           myExcel.Application.Workbooks.Open(pathName + "\\temp\\" + dateTime + " 产品名称.xls", ming, ming, ming, ming, ming, ming, ming, ming, ming, ming, ming, ming, ming, ming);
           myExcel.Visible = false;

           Excel.Workbook myBook = myExcel.Workbooks[1];
           Excel.Worksheet mySheet = (Excel.Worksheet)myBook.Worksheets[1];

           databind();

           try
           {
               if (ds.Tables.Contains("tblClass"))//如果有这个表就把改表的内容清空 
 
               {
                   ds.Tables["tblClass"].Clear();
               }
               da.Fill(ds, "tblClass");
               count = ds.Tables["tblClass"].Rows.Count;//表中的数据的总行数
                 dataGridView1.DataSource = ds.Tables["tblClass"];

               if (count == 0)
               {
                   MessageBox.Show("没有可打印的数据！", "系统提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
                   return;
               }
               else
               {
                   myExcel.Cells[2, 3] = dateTime;//显示时间的位置

                      for (int i = 0; i < count; i++)
                   {
                       ((Excel.Range)mySheet.Cells[i + 3, 1]).EntireRow.Insert(0, Excel.XlDirection.xlDown);  //添加行

                       mySheet.Cells[i  + 3, 1] = ds.Tables["tblClass"].Rows[i][0].ToString();
                       mySheet.Cells[i  + 3, 2] = ds.Tables["tblClass"].Rows[i][1].ToString();
                   }
               }
               Excel.Range r = mySheet.get_Range(mySheet.Cells[3, 1], mySheet.Cells[2 + count, 2]);
               r.Select();
               myExcel.Run("Macro1",ming, ming, ming, ming, ming, ming, ming, ming, ming, ming, ming, ming, ming, ming, ming, ming, ming, ming, ming, ming, ming, ming, ming, ming, ming, ming, ming, ming, ming, ming);
               myBook.Save();
               myExcel.Visible = true;
           }
           catch (Exception ex)
           {
               MessageBox.Show(ex.Message, "系统提示", MessageBoxButtons.OK, MessageBoxIcon.Error);
               if (myBook != null)
               {
                   myBook.Close(false, ming, ming);
               }
               myExcel.Workbooks.Close();
               myExcel.Quit();
               System.Runtime.InteropServices.Marshal.ReleaseComObject(myExcel);
           }
           finally
           {
               da.Dispose();
           }
       }



你可以根据情况来改
[解决办法]
探讨

用这个语句在查询分析器上可以: 

SQL code


EXEC master..xp_cmdshell 'bcp "select * from test.dbo.LS_Tab" queryout C:\Excel.xls -c -S192.168.1.100 -Usa -Psa' 




不知道怎么搬到C#中就没用了.........不知道为什么

[解决办法]
探讨

引用:
用这个语句在查询分析器上可以: 

SQL code 


EXEC master..xp_cmdshell 'bcp "select * from test.dbo.LS_Tab" queryout C:\Excel.xls -c -S192.168.1.100 -Usa -Psa' 


不知道怎么搬到C#中就没用了.........不知道为什么 
 

这个也可以用的,去掉EXEC直接master..xp_cmdshell ..................          就可以了 

[解决办法]
1楼的代码不觉的有问题吗??
C# code
for (int j = 0; j < dgvAgeWeekSex.Rows.Count; j++)                {..........}要改成for (int j = 0; j < dgvAgeWeekSex.Rows.Count-1; j++)
[解决办法]
我的BLOG里又源码