SMART datagrid v.1 > Classes > DataSet
Remove the tag of data rows which have data tag among the values specified by tags of rows specified by rows.
If do not specify rows, it will check about all data rows. And, if do not specify tags, it will remove data tag of all rows of rows. If do not specify rows and tags, it will remove data tag of all rows as the same as clearRowTags.
If actually remove the tag of one or more rows, GridDataSet.onTagsChanged event or TreeDataSet.onTagsChanged event will be fired, and if do not specify rows, tags, onTagsCleared event will be fired.
var rows = tree.getSelectedRows();
if (rows && rows.length) {
rows = tree.getDataRowsOfRows(rows);
ds.unsetRowTags(rows, ['#tag1', '#tag2']);
}