我正在使用条件表达式,但是我无法向FilterExpression添加多个条件.
可以帮忙吗我已经在这里发布了我的源代码.
可以帮忙吗我已经在这里发布了我的源代码.
带过滤器的ConditionExpression
// Filter1
FilterExpression filter1 = new FilterExpression();
filter1.FilterOperator = LogicalOperator.And;
filter1.Conditions.Add(new ConditionExpression("A_LogicalName",ConditionOperator.Equal,id1));
filter1.Conditions.Add(new ConditionExpression("B_LogicalName",id2));
query.Criteria.Filters.Add(filter1);
// Filter2
FilterExpression filter2 = new FilterExpression();
filter2.FilterOperator = LogicalOperator.And;
filter2.Conditions.Add(new ConditionExpression("B_LogicalName",id3));
filter2.Conditions.Add(new ConditionExpression("C_LogicalName",id4));
q_ShoppingCartItemQuantityCheck.Criteria.Filters.Add(filter2);
解决方法
不知道我是否正确理解你的问题.
如果我说得对,你想建立一个这样的层次表达式：
如果我说得对,你想建立一个这样的层次表达式：
(A_logicalName AND B_LogicalName) OR (B_LogicalName AND
C_LogicalName)
那是对的吗？
以下不会解决你的问题？
query.Criteria = new FilterExpression();
query.Criteria.FilterOperator = LogicalOperator.Or;
FilterExpression filter1 = query.Criteria.AddFilter(LogicalOperator.And);
filter1.Conditions.Add(new ConditionExpression("A_LogicalName",id2));
FilterExpression filter2 = query.Criteria.AddFilter(LogicalOperator.And);
filter2.Conditions.Add(new ConditionExpression("B_LogicalName",id2));
filter2.Conditions.Add(new ConditionExpression("C_LogicalName",id3));
另见MSDN上的例子.
