I am changing label of a button , but it is not getting reflected in the application . My whole source code GitHub - redoC-A2k/vtodo: [WIP]: Vala and gtk based todo application . is here .
On first printf the output is Button , while for second it is December which is as expected , the problem is that there is not any change in gui label of button of my gtk application . It througout shows button rather than december
This is the highlighted button which I am trying to change