private void EditGroup(ComboBox cmb, GroupType groupType, GroupBase group)
        {
            RenameGroupForm renameGroupForm = new RenameGroupForm();

            renameGroupForm.GroupType = groupType;
            renameGroupForm.Group     = group;
            if (renameGroupForm.ShowDialog() == DialogResult.OK)
            {
                cmb.Items.Clear();
                cmb.Items.AddRange(group.Items.ToArray());
                if (shop != null)
                {
                    cmb.Text          = "";
                    cmb.SelectedIndex = -1;
                }
            }
        }
        private void CreateGroup(ComboBox cmb, GroupType groupType, GroupBase group)
        {
            CreateGroupForm defineGroupForm = new CreateGroupForm();

            defineGroupForm.GroupType = groupType;
            defineGroupForm.Group     = group;
            if (defineGroupForm.ShowDialog() == DialogResult.OK)
            {
                cmb.Items.Clear();
                cmb.Items.AddRange(group.Items.ToArray());
                if (shop != null)
                {
                    cmb.Text          = "";
                    cmb.SelectedIndex = -1;
                }
            }
        }