public void GetHistory()
{
string userId = Session["sn"].ToString();
string sql = "select id, examId, score, datetime from exam_record where userId = @userId";
Mysqldb mysqldb = new Mysqldb();
MySqlConnection connection = mysqldb.getConnection();
MySqlCommand cmd = mysqldb.getCommand(connection);
cmd.CommandText = sql;
cmd.Parameters.AddWithValue("@userId", userId);
MySqlDataAdapter da = new MySqlDataAdapter();
connection.Open();
da.SelectCommand = cmd;
DataSet ds = new DataSet();
da.Fill(ds, "history");
GridView_Exam_History.DataSource = ds;
GridView_Exam_History.DataBind();
connection.Close();
}
protected void GridView_Exam_History_PageIndexChanging(object sender, GridViewPageEventArgs e)
{
GridView_Exam_History.PageIndex = e.NewPageIndex;
GridView_Exam_History.DataBind();
}