IfcDoc.CtlProperties.checkBoxExchangeImport_CheckedChanged C# (CSharp) Method

        private void checkBoxExchangeImport_CheckedChanged(object sender, EventArgs e)
        {
            DocExchangeDefinition docExchange = (DocExchangeDefinition)this.m_target;
            if (this.checkBoxExchangeImport.Checked)
            {
                docExchange.Applicability |= DocExchangeApplicabilityEnum.Import;
            }
            else
            {
                docExchange.Applicability &= ~DocExchangeApplicabilityEnum.Import;
            }
        }