c#datagridview转出CSV文件
1、首先在需要转出文档的页面将空间布局处理好。各个控件按需处理。
2、连接数据库，本例采用XML方式连接。
SqlConnection conn = new SqlConnection(Read_Xml(Application.StartupPath + "\\Sqlconnection.xml"));
conn.Open();
3、转出CSV档案控件事件编写。
if (dataGridView1.Rows.Count == 0)
{
MessageBox.Show("没有数据可导出!", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
return;
}
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 < dataGridView1.ColumnCount; i++)
{
if (i > 0)
strLine += ",";
strLine += dataGridView1.Columns[i].HeaderText;
}
strLine.Remove(strLine.Length - 1);
sw.WriteLine(strLine);
strLine = "";
//表的内容
for (int j = 0; j < dataGridView1.Rows.Count; j++)
{
strLine = "";
int colCount = dataGridView1.Columns.Count;
for (int k = 0; k < colCount; k++)
{
if (k > 0 && k < colCount)
strLine += ",";
if (dataGridView1.Rows[j].Cells[k].Value == null)
strLine += "";
else
{
string cell = dataGridView1.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);
}
4、完成任务后记得关闭数据库连接。
5、去写完后去测试，导出文件。
6、导出成功，速度比Excel要快很多。
