数据导入OpenFileDialog

private void btnImport_Click(object sender, EventArgs e)
{
OpenFileDialog ofd = new OpenFileDialog();
ofd.Filter = "文本文件|*.txt";
if (ofd.ShowDialog()!=DialogResult.OK)
{
return;
}
string filename = ofd.FileName;
//ReadAllLines是把文件一次读取到string集合中
IEnumerable<string> lines=File.ReadAllLines(filename);
foreach (string line in lines)
{
string[] str = line.Split('|');
string name = str[0];
string age = str[1];

//插入数据库操作
string strconn = "Data Source=.\\SQLEXPRESS;Initial Catalog=My_Test;Integrated Security=True";
SqlConnection conn = new SqlConnection(strconn);
conn.Open();
string strSql = "insert into T_table1(name,age) values ('"+name+"','"+Convert .ToInt32(age)+"')";
SqlCommand cmd = new SqlCommand(strSql ,conn);
if (cmd.ExecuteNonQuery() > 0)
{
MessageBox.Show("数据导入成功！");
}
else
{
MessageBox.Show("数据导入失败！");
}
}
}