SMART datagrid v.1 > Classes > TreeOptions
The levels of tree row in which will display footer of each tree row.
If want to display footer in all levels, you can specify by ""*. If want to specify one or more specific levels, you can specify with level number array like [1, 2]. If want to specify footer row with a more complicated logic, you can use footerDisplayCallback.
If specify footerDisplayCallback, this property will be ignored.
Defaults to null.
tree.setTreeOptions({
footerDisplayCallback: null, // Since this setting takes precedence, it will be specified as null.
footerLevels: "*" // All levels
// or
footerLevels: [1, 2]
});