Not able to retrieve value from BinaryExpression.Right

[jabreuar]

I was trying to use the WalkTree method, but it was getting an error: propertyValue.Value is not defined.

I already fixed it. I just built a new method to retrive the value from a BinaryExpression:

private static void WalkTree(BinaryExpression body, ExpressionType linkingType, ref List queryProperties)
{
if (body.NodeType != ExpressionType.AndAlso &&
body.NodeType != ExpressionType.OrElse)
{
string propertyName = GetPropertyName(body);
dynamic propertyValue = GetValue(body);
string opr = GetOperator(body.NodeType);
string link = GetOperator(linkingType);

            queryProperties.Add(new QueryParameter(link, propertyName, propertyValue, opr));
        }
        else
        {
            WalkTree((BinaryExpression)body.Left, body.NodeType, ref queryProperties);
            WalkTree((BinaryExpression)body.Right, body.NodeType, ref queryProperties);
        }
    }

    private static object GetValue(BinaryExpression func)
    {
        return Expression.Lambda(func.Right).Compile().DynamicInvoke();
    }

Btw, very nice implementation 👍