private void button1_Click(object sender, EventArgs e)
{
strSql = "select * from Usuarios where Login like @Login and Senha = @Senha";
sqlCon = new SqlConnection(strCon);
SqlCommand comando = new SqlCommand(strSql, sqlCon);
comando.Parameters.AddWithValue("@Login", SqlDbType.VarChar).Value = txt_login.Text;
comando.Parameters.AddWithValue("@Senha", SqlDbType.VarChar).Value = txt_senha.Text;
comando.Connection = sqlCon;
sqlCon.Open();
DataSet ds = new DataSet();
SqlDataAdapter da = new SqlDataAdapter(comando);
da.Fill(ds);
sqlCon.Close();
bool loginSuccessful = ((ds.Tables.Count > 0) && (ds.Tables[0].Rows.Count > 0));
if (loginSuccessful)
{
MessageBox.Show("Login efetuado com sucesso!");
Cadastro cad = new Cadastro();
LogMenu log = new LogMenu();
this.Hide();
cad.ShowDialog();
}
else
{
MessageBox.Show("Usuário ou Senha incorretos!");
}
}
private void voltarToolStripMenuItem_Click(object sender, EventArgs e)
{
LogMenu log = new LogMenu();
this.Hide();
log.ShowDialog();
}