AudioFormatConverterUI.m_audioFormatConverterForm.m_lb_addFiles_SelectedIndexChanged_1 C# (CSharp) Метод

        private void m_lb_addFiles_SelectedIndexChanged_1(object sender, EventArgs e)
        {
            m_btnDelete.Enabled = m_lb_addFiles.Items.Count >= 1 && m_lb_addFiles.SelectedIndex >= 0;
        }