SMART datagrid v.1 > Classes > GridBase
Return the first ValueColumn object among the columns Being Displayed in grid. If visibleColumnCount is 0, it will return null. Please refer to First Column property of ColumnGroup.
// Move the focus to the first column
var column = grid.getFirstColumn();
column && grid.setFocusedColumn(column, true);
var column = grid.getFirstColumn();
if (column) {
column.setVisible(false);
}