csharpdoost
جمعه 23 فروردین 1392, 11:35 صبح
این دو دستور رو که میخوام اجرا کنم مقدار صفر برمیگردونه چرا؟
OleDbConnection con = new OleDbConnection(@"Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:\Users\Ali\Documents\Visual Studio 2008\Projects\Azmoon\Azmoon\Database111.accdb");
OleDbCommand com = new OleDbCommand();
com.Connection = con;
//string sql = "select max(id) from question_TB";
string sql= "SELECT COUNT(*) FROM question_TB";
com.CommandText = sql;
con.Open();
label9.Text=(com.ExecuteNonQuery()).ToString();
con.Close();
OleDbConnection con = new OleDbConnection(@"Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:\Users\Ali\Documents\Visual Studio 2008\Projects\Azmoon\Azmoon\Database111.accdb");
OleDbCommand com = new OleDbCommand();
com.Connection = con;
//string sql = "select max(id) from question_TB";
string sql= "SELECT COUNT(*) FROM question_TB";
com.CommandText = sql;
con.Open();
label9.Text=(com.ExecuteNonQuery()).ToString();
con.Close();