SMART datagrid v.1 > Classes > DataSet

DataLudi.DataSet.recalcRows  method

Recalculate the value of Derived Fields. 

Only when the value of common fields is changed, the value of Derived Field will be calculated automatically. However, when calculate the value by DerivedField.callback, or since rowTag is contained in Expression, you should recalculate even if the value of common fields are not changed, you can call this method. 

Returns

Void

Parameters

rows - Integer|TreeDataRow|Array.

It specifies as data row number, Tree Row Object or array of them. If specify null or undefined, it will recalculate all rows.

    var row = grid.focusedDataIndex();
    ds.setRowTag(row, '10000');
    ds.recalcRows(row);

    // Recalculate all rows.
    ds.recalcRows();

    var rows = grid.getSelectedDataIndices();
    ds.recalcRows(rows);

See Also

DataSet.getRowTag

DataSet.setRowTag

DataSet.getRowsByTag

DataSet.setRowTags

DataSet.unsetRowTags

DerivedField

Examples

Derived Field & Row Tags