string sql = "select 学号,姓名 from 学生表 ";
DataSet ds = new DataSet();
OleDbCommand comd = new OleDbCommand(sql,conn);
comd.CommandText = sql;
OleDbDataAdapter da = new OleDbDataAdapter();
da.SelectCommand = comd;
da.Fill(ds);
DataTable myTable = ds.Tables[0];
for (int i = 0; i < myTable.Rows.Count; i++)
{
this.myRow = myTable.Rows[i];
if (myRow[0].ToString().Trim() == txtstuNO.Text.Trim() &&( myRow[1].ToString().Trim() == txtname.Text.Trim()))
{
ismatch = true;
}
else
{
ismatch = false;
}
}
你一台机子要登陆几个人啊
OleDbCommand comd = new OleDbCommand(sql,conn);
comd.Execu......自己想啊
comd.ExecuteNonQuery();
comd.ExecuteScalar();
这三个你自己去搞清楚要用哪个啊,登陆不是像你写那样子的啊