System.Data.DataExpression.Evaluate C# (CSharp) Метод

        internal object Evaluate()
        {
            return Evaluate((DataRow)null, DataRowVersion.Default);
        }

 /// <devdoc>
 ///    <para>Computes the given expression on the current rows that pass the filter criteria.</para>
 /// </devdoc>
 public object Compute(string expression, string filter) {
     DataRow[] rows = Select(filter, "", DataViewRowState.CurrentRows);
     DataExpression expr = new DataExpression(this, expression);
     return expr.Evaluate(rows);
 }