private void Lista_Alunos_Load(object sender, EventArgs e)
        {
            SqlCommand cmd = new SqlCommand("SELECT IDALUNO, NOME, NASCIMENTO, GENERO, FOTO FROM ALUNO ORDER BY IDALUNO");

            grid_Alunos.ReadOnly = true;
            DataGridViewImageColumn fotoCol = new DataGridViewImageColumn();

            grid_Alunos.RowTemplate.Height = 80;
            grid_Alunos.DataSource         = aluno.getAlunos(cmd);
            fotoCol                        = (DataGridViewImageColumn)grid_Alunos.Columns[4];
            fotoCol.ImageLayout            = DataGridViewImageCellLayout.Stretch;
            grid_Alunos.AllowUserToAddRows = false;

            SqlCommand cmd2 = new SqlCommand("SELECT R.NOME, R.IDALUNO FROM RESPONSAVEL R" +
                                             " INNER JOIN ALUNO A" +
                                             " ON R.IDALUNO = A.IDALUNO  ORDER BY R.IDALUNO");

            grid_responsavel.ReadOnly           = true;
            grid_responsavel.RowTemplate.Height = 80;
            grid_responsavel.DataSource         = responsavelDao.getResponsavel(cmd2);
            grid_responsavel.AllowUserToAddRows = false;

            SqlCommand cmd3 = new SqlCommand("SELECT R.IDRESPONSAVEL, T.NUMERO FROM TELEFONE T INNER JOIN RESPONSAVEL_TELEFONE RT ON RT.IDTELEFONE = T.IDTELEFONE INNER JOIN RESPONSAVEL R ON R.IDRESPONSAVEL = RT.IDRESPONSAVEL INNER JOIN ALUNO A ON A.IDALUNO = R.IDALUNO ORDER BY R.IDALUNO");

            grid_Telefone.ReadOnly           = true;
            grid_Telefone.RowTemplate.Height = 80;
            grid_Telefone.DataSource         = telefoneDao.GetTelefone(cmd3);
            grid_Telefone.AllowUserToAddRows = false;

            SqlCommand cmd4 = new SqlCommand("SELECT E.CEP, E.UF, E.CIDADE, E.BAIRRO, E.RUA, E.NUMERO FROM ENDERECO E INNER JOIN RESPONSAVEL_ENDERECO RE ON RE.IDENDERECO = E.IDENDERECO INNER JOIN RESPONSAVEL R ON R.IDRESPONSAVEL = RE.IDRESPONSAVEL INNER JOIN ALUNO A ON A.IDALUNO = R.IDALUNO ORDER BY A.IDALUNO");

            grid_Endereco.ReadOnly           = true;
            grid_Endereco.RowTemplate.Height = 80;
            grid_Endereco.DataSource         = enderecoDao.GetEndereco(cmd4);
            grid_Endereco.AllowUserToAddRows = false;
        }