private void button1_Click(object sender, EventArgs e)
{
if (tbUser.Text.Trim().Length == 0)
{
MessageBox.Show("请输入用户名！");
tbUser.Focus();
return;
}
if (tbPWD.Text.Trim().Length == 0)
{
MessageBox.Show("请输入密码！");
tbPWD.Focus();
return;
}
common com = new common();
database db = new database();
int t = 0;
string sql = "select count(*)from manager where username='******'and password='******'";
t = db.runSqlInt(sql);
if (t > 0)
{
this.Hide();
main fmain = new main();
fmain.User = tbUser.Text.Trim();
fmain.Show();
}
else
{
MessageBox.Show("用户名或者密码错误！");
}
}
