dataGridView数据到EXCEL?为何老报这样的错?

Question

现在我遇到需要将dataGridView数据存到EXCEL中，在网络上看了很多代码 ,也查了很多书籍,都有
Excel.Application excel = new Excel.Application();
但是为什么我调试时候老提示Excel.Application为抽象类或接口,无法创建实例.
为什么网上的原代码都是要创建这个实例,书上也是这样写的，但是我调试就不行呢?项目添加引用,我也添了，其它还有什么地方不对吗?

Answer 1

 public void DataToExcel(System.Windows.Forms.DataGridView m_DataView)
        {            
SaveFileDialog kk = new SaveFileDialog();
            kk.Title = "保存EXECL文件";
            kk.Filter = "EXECL文件|*.*|xls文件|*.xls|所有文件|*.*";
            kk.FilterIndex = 1;
            if (kk.ShowDialog() == DialogResult.OK)
            {
                string FileName = kk.FileName + ".xls";
                FileStream objFileStream;
                StreamWriter objStreamWriter;
                string strLine = "";
                objFileStream = new FileStream(FileName, FileMode.OpenOrCreate, FileAccess.Write);
                objStreamWriter = new StreamWriter(objFileStream, System.Text.Encoding.Unicode);
                //strLine = "流水号" + Convert.ToChar(9);
                for (int i = 0; i < m_DataView.Columns.Count; i++)
                {
                    if (m_DataView.Columns[i].Visible == true)
                    {
                        strLine = strLine + m_DataView.Columns[i].HeaderText.ToString() + Convert.ToChar(9);
                    }
                }
                objStreamWriter.WriteLine(strLine);
                strLine = "";                for (int i = 0; i < m_DataView.Rows.Count; i++)
                {
                    if (m_DataView.Columns[0].Visible == true)
                    {
                        if (m_DataView.Rows[i].Cells[0].Value == null)
                            strLine = strLine + " " + Convert.ToChar(9);
                        else
                            strLine = strLine + m_DataView.Rows[i].Cells[0].Value.ToString() + Convert.ToChar(9);
                    }
                    for (int j = 1; j < m_DataView.Columns.Count; j++)
                    {
                        if (m_DataView.Columns[j].Visible == true)
                        {
                            if (m_DataView.Rows[i].Cells[j].Value == null)
                                strLine = strLine + " " + Convert.ToChar(9);
                            else
                            {
                                string rowstr = "";
                                rowstr = m_DataView.Rows[i].Cells[j].Value.ToString();
                                if (rowstr.IndexOf("\r\n") > 0)
                                    rowstr = rowstr.Replace("\r\n", " ");
                                if (rowstr.IndexOf("\t") > 0)
                                    rowstr = rowstr.Replace("\t", " ");
                                strLine = strLine + rowstr + Convert.ToChar(9);
                            }
                        }
                    }
                    objStreamWriter.WriteLine(strLine);
                    strLine = "";
                }
                objStreamWriter.Close();
                objFileStream.Close();
                MessageBox.Show("保存EXCEL成功");
            }
            else
            {
                MessageBox.Show("保存EXCEL失败"); ;
            }
}

Answer 2

大哥,你帮了小弟大忙了,终于搞起了!网上好多代码都不行,就你的行!
我刚试了下 另外一个网上找的!
 public void DataToExcel(System.Windows.Forms.DataGridView m_DataView)
        {
            SaveFileDialog kk = new SaveFileDialog();
            kk.Title = "保存EXECL文件";
            kk.Filter = "Execl files (*.xls)|*.xls";
            kk.FilterIndex = 1;
            if (kk.ShowDialog() == DialogResult.OK)
            {
                string FileName = kk.FileName + ".xls";
                FileStream objFileStream;
                StreamWriter objStreamWriter;
                string strLine = "";
                objFileStream = new FileStream(FileName, FileMode.OpenOrCreate, FileAccess.Write);
                objStreamWriter = new StreamWriter(objFileStream, System.Text.Encoding.Unicode);
                //strLine   =   "流水号"   +   Convert.ToChar(9); 
                for (int i = 0; i < m_DataView.Columns.Count; i++)
                {
                    if (m_DataView.Columns[i].Visible == true)
                    {
                        strLine = strLine + m_DataView.Columns[i].HeaderText.ToString() + Convert.ToChar(9);
                    }
                }
                objStreamWriter.WriteLine(strLine);
                strLine = "";                for (int i = 0; i < m_DataView.Rows.Count; i++)
                {
                    if (m_DataView.Columns[0].Visible == true)
                    {
                        if (m_DataView.Rows[i].Cells[0].Value == null)
                            strLine = strLine + "   " + Convert.ToChar(9);
                        else
                            strLine = strLine + m_DataView.Rows[i].Cells[0].Value.ToString() + Convert.ToChar(9);
                    }
                    for (int j = 1; j < m_DataView.Columns.Count; j++)
                    {
                        if (m_DataView.Columns[j].Visible == true)
                        {
                            if (m_DataView.Rows[i].Cells[j].Value == null)
                                strLine = strLine + "   " + Convert.ToChar(9);
                            else
                            {
                                string rowstr = "";
                                rowstr = m_DataView.Rows[i].Cells[j].Value.ToString();
                                if (rowstr.IndexOf("\r\n") > 0)
                                    rowstr = rowstr.Replace("\r\n", "   ");
                                if (rowstr.IndexOf("\t") > 0)
                                    rowstr = rowstr.Replace("\t", "   ");
                                strLine = strLine + rowstr + Convert.ToChar(9);
                            }
                        }
                    }
                    objStreamWriter.WriteLine(strLine);
                    strLine = "";
                }
                objStreamWriter.Close();
                objFileStream.Close();
                MessageBox.Show("保存EXCEL成功");
            }
            else
            {
                MessageBox.Show("保存EXCEL失败"); ;
            }
        }
结果也有点错,只能写进表头,不能写数据.你的完全可以用!