Eval() [2/3]

override object System.Data.LookupNode.Eval ( DataRow row, DataRowVersion version )

inlinepackage

Definition at line 78 of file LookupNode.cs.

    {
        if (_column == null || _relation == null)
        {
            throw ExprException.ExpressionUnbound(ToString());
        }
        DataRow parentRow = row.GetParentRow(_relation, version);
        if (parentRow == null)
        {
            return DBNull.Value;
        }
        return parentRow[_column, parentRow.HasVersion(version) ? version : DataRowVersion.Current];
    }

References System.Data.LookupNode._column, System.Data.LookupNode._relation, System.Data.ExprException.ExpressionUnbound(), System.ToString, and System.DBNull.Value.