private void button4_Click(object sender, EventArgs e)
{
ClsDB.ClsDBControl cdb = new Test13.ClsDB.ClsDBControl();
DataSet dsNew = cdb.dsResult(LastNum - 1);
this.textBox1.Text = dsNew.Tables[0].Rows[0][0].ToString();
this.textBox2.Text = dsNew.Tables[0].Rows[0][1].ToString();
this.textBox3.Text = dsNew.Tables[0].Rows[0][2].ToString();
i = LastNum - 1;
}
private void button3_Click(object sender, EventArgs e)
{
i += 1;
if (i <= (LastNum - 1))
{
ClsDB.ClsDBControl cdb = new Test13.ClsDB.ClsDBControl();
DataSet dsNew = cdb.dsResult(i);
this.textBox1.Text = dsNew.Tables[0].Rows[0][0].ToString();
this.textBox2.Text = dsNew.Tables[0].Rows[0][1].ToString();
this.textBox3.Text = dsNew.Tables[0].Rows[0][2].ToString();
}
else
{
i -= 1;
MessageBox.Show("这已是最后一条信息");
}
}
private void Form1_Load(object sender, EventArgs e)
{
ClsDB.ClsDBControl CDBLast = new Test13.ClsDB.ClsDBControl();
LastNum = CDBLast.Max();
}
