private void btnAccept_Click(object sender, EventArgs e)
        {
            if (string.IsNullOrEmpty(txtRFC.Text) || RegularExpressions.CheckIsRFC(txtRFC.Text))
            {
                if (RegularExpressions.CheckIsNormalText(txtCompany.Text, 1, 100))
                {
                    if (RegularExpressions.CheckIsNormalText(txtAddress.Text, 0, 255))
                    {
                        if (RegularExpressions.CheckIsNumber(txtPhone.Text, 10, 10))
                        {
                            if (string.IsNullOrEmpty(txtEmail.Text) || RegularExpressions.CheckIskEmail(txtEmail.Text))
                            {
                                if (RegularExpressions.CheckIsUrl(txtFacebook.Text))
                                {
                                    if (cboState.SelectedIndex < 1 || cboCity.SelectedIndex > -1)
                                    {
                                        byte[] logo = null;
                                        if (pcbLogo.Image != null)
                                        {
                                            logo = Tools.ConvertirImagenAByte(pcbLogo.Image);
                                        }

                                        if (BPrincipalCompany.Edit(
                                                objPrincipalCompany,
                                                !string.IsNullOrEmpty(txtRFC.Text) ? txtRFC.Text : null,
                                                txtCompany.Text,
                                                !string.IsNullOrEmpty(txtAddress.Text) ? txtAddress.Text : null,
                                                !string.IsNullOrEmpty(txtPhone.Text) ? txtPhone.Text : null,
                                                !string.IsNullOrEmpty(txtEmail.Text) ? txtEmail.Text : null,
                                                !string.IsNullOrEmpty(txtFacebook.Text) ? txtFacebook.Text : null,
                                                cboMode.SelectedIndex == 0 ? true : false,
                                                Convert.ToInt32(nudHoursToBackup.Value),
                                                Convert.ToInt32(nudDaysToDelete.Value),
                                                stPathPicture,
                                                logo,
                                                cboState.SelectedIndex > 0 ? cboState.Text : null,
                                                cboCity.SelectedIndex > -1 ? cboCity.Text : null,
                                                ObjForm_004.ObjSession
                                                ))
                                        {
                                            txtRFC.Enabled           = false;
                                            txtCompany.Enabled       = false;
                                            txtAddress.Enabled       = false;
                                            txtPhone.Enabled         = false;
                                            txtEmail.Enabled         = false;
                                            txtFacebook.Enabled      = false;
                                            cboState.Enabled         = false;
                                            cboCity.Enabled          = false;
                                            pcbLogo.Enabled          = false;
                                            cboMode.Enabled          = false;
                                            nudHoursToBackup.Enabled = false;
                                            nudDaysToDelete.Enabled  = false;
                                            pcbLogo.Enabled          = false;

                                            btnAccept.Visible = btnCancel.Visible = false;
                                            btnEdit.Visible   = true;

                                            btnClose.Enabled = true;

                                            byAction = 0;

                                            MessageBox.Show(Preferences.GlobalSuccessOperation, Preferences.TitleSoftware, MessageBoxButtons.OK, MessageBoxIcon.Information);
                                        }
                                        else
                                        {
                                            MessageBox.Show(Preferences.GlobalErrorOperation, Preferences.TitleSoftware, MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
                                        }
                                    }
                                    else
                                    {
                                        MessageBox.Show("The city must be selected if you selected some city.", Preferences.TitleSoftware, MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
                                        cboCity.Focus();
                                    }
                                }
                                else
                                {
                                    MessageBox.Show("The facebook isn't correct.", Preferences.TitleSoftware, MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
                                    txtFacebook.Focus();
                                }
                            }
                            else
                            {
                                MessageBox.Show("The email isn't correct.", Preferences.TitleSoftware, MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
                                txtEmail.Focus();
                            }
                        }
                        else
                        {
                            MessageBox.Show("The phone isn't correct.", Preferences.TitleSoftware, MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
                            txtPhone.Focus();
                        }
                    }
                    else
                    {
                        MessageBox.Show("The address isn't correct.", Preferences.TitleSoftware, MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
                        txtAddress.Focus();
                    }
                }
                else
                {
                    MessageBox.Show("The company isn't correct.", Preferences.TitleSoftware, MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
                    txtCompany.Focus();
                }
            }
            else
            {
                MessageBox.Show("The RFC isn't correct.", Preferences.TitleSoftware, MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
                txtRFC.Focus();
            }
        }