SMART datagrid v.1 > Classes > GridBase
Call the callback function specified by callback to all column objects set in grid, including the child columns being included in Column Group.
You can use visitColumns to call the callback only for the columns being displayed.
$('#btnAllColumns').click(function () {
var columns = [];
grid.visitAllColumns(function (col) {
columns.push(col);
});
model.setColumns(columns);
});