AX – D365FO – Detect selected line (row) changed in FormGridControl

To detect selected line just use form data sources.

Override active() method of the date source – it’s executed when a user switches to another record. The active record is in the automatic variable with same name as the data source.

Here is an example

public int active()
{
    int ret;
    ret = super();
    if (ret)
    {
     element.InitActivityTree(AL0VendorActivityAreaView_ds, ActivityTreeAreaView, LogisticsAddressStateAreaView_ds.cursor().RecId); //This is the active record id
    }

    return ret;
}