TEXTBOX 问题，请高手帮忙！！急！！

Question

写的添加事件
private void homeworkup()
{
SqlConnection conn;
conn = new SqlConnection(ConfigurationSettings.AppSettings["ConString"]);
conn.Open();
string sql;
sql="insert into uphomework(u_title,u_content,u_path,u_name,u_time,h_id) values('"+title.Text+"','"+u_content.Text+"','"+filename+"','"+u_name.Text+"','"+DateTime.Now+"','"+Convert.ToInt32(homeworklists.SelectedValue)+"')";
SqlCommand cmd=new SqlCommand();
cmd.CommandText=sql;
cmd.Connection=conn;
cmd.ExecuteNonQuery();
Response.Write("<script>alert('上缴成功！')</script>");
cmd.Dispose();
conn.Close();
}
是u_content 设置为多行文本框

Answer 1

<%@ Page ValidateRequest="false"%>