//author: walker//date: 2014-01-06//function: 将dataGridView导出到csvprivate bool dataGridViewToCSV(DataGridView dataGridView){    if (dataGridView.Rows.Count == 0)    {        MessageBox.Show("没有数据可导出!", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);        return false;    }    SaveFileDialog saveFileDialog = new SaveFileDialog();    saveFileDialog.Filter = "CSV files (*.csv)|*.csv";    saveFileDialog.FilterIndex = 0;    saveFileDialog.RestoreDirectory = true;    saveFileDialog.CreatePrompt = true;    saveFileDialog.FileName = null;    saveFileDialog.Title = "保存";    if (saveFileDialog.ShowDialog() == DialogResult.OK)    {        Stream stream = saveFileDialog.OpenFile();        StreamWriter sw = new StreamWriter(stream, System.Text.Encoding.GetEncoding(-0));        string strLine = "";        try        {            //表头            for (int i = 0; i < dataGridView.ColumnCount; i++)            {                if (i > 0)                    strLine += ",";                strLine += dataGridView.Columns[i].HeaderText;            }            strLine.Remove(strLine.Length - 1);            sw.WriteLine(strLine);            strLine = "";            //表的内容            for (int j = 0; j < dataGridView.Rows.Count; j++)            {                strLine = "";                int colCount = dataGridView.Columns.Count;                for (int k = 0; k < colCount; k++)                {                    if (k > 0 && k < colCount)                        strLine += ",";                    if (dataGridView.Rows[j].Cells[k].Value == null)                        strLine += "";                    else                    {                        string cell = dataGridView.Rows[j].Cells[k].Value.ToString().Trim();                        //防止里面含有特殊符号                        cell = cell.Replace("\"", "\"\"");                        cell = "\"" + cell + "\"";                        strLine += cell;                    }                }                sw.WriteLine(strLine);            }            sw.Close();            stream.Close();            MessageBox.Show("数据被导出到：" + saveFileDialog.FileName.ToString(), "导出完毕", MessageBoxButtons.OK, MessageBoxIcon.Information);        }        catch (Exception ex)        {            MessageBox.Show(ex.Message, "导出错误", MessageBoxButtons.OK, MessageBoxIcon.Information);            return false;        }    }    return true;}

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