Typica/config/Windows/editinvoice.xml

<window id="editinvoice">
	<layout type="vertical">
		<layout type="horizontal">
			<label>Invoice:</label>
			<line id="invoice" />
		</layout>
		<layout type="horizontal">
			<button type="push" id="cancel" name="Cancel" />
			<button type="push" id="submit" name="Submit" />
		</layout>
	</layout>
	<program>
		<![CDATA[
			var window = this;
			var submit = findChildObject(this, 'submit');
			var invoiceLine = findChildObject(this, 'invoice');
			submit.clicked.connect(function() {
				var query = new QSqlQuery();
				query.prepare("UPDATE invoices SET invoice = :invoice WHERE id = :id");
				query.bind(":invoice", invoiceLine.text);
				query.bind(":id", window.invoiceID);
				query.exec();
				query = query.invalidate;
				window.close();
			});
			var cancel = findChildObject(this, 'cancel');
			cancel.clicked.connect(function() {
				window.close();
			});
		]]>
	</program>
</window>