C# (CSharp) FileContextCore.Query.Internal FileContextQueryExpression.ReplaceProjectionMapping Beispiele

Beispiel #1

Datei: FileContextProjectionBindingExpressionVisitor.cs Projekt: wertziop/FileContextCore

        public virtual Expression Translate(FileContextQueryExpression queryExpression, Expression expression)
        {
            _queryExpression = queryExpression;
            _clientEval      = false;

            _projectionMembers.Push(new ProjectionMember());

            var expandedExpression = _queryableMethodTranslatingExpressionVisitor.ExpandWeakEntities(_queryExpression, expression);
            var result             = Visit(expandedExpression);

            if (result == null)
            {
                _clientEval = true;

                expandedExpression = _queryableMethodTranslatingExpressionVisitor.ExpandWeakEntities(_queryExpression, expression);
                result             = Visit(expandedExpression);

                _projectionMapping.Clear();
            }

            _queryExpression.ReplaceProjectionMapping(_projectionMapping);
            _queryExpression = null;
            _projectionMapping.Clear();
            _projectionMembers.Clear();

            return(result);
        }