[英]How can I select one of two objects depending if one is null or not with a LinQ to Entities query.
[英]How I can join two FQL queries into one query.?
嗨,我有两个不同的查询,一个用于username
,第二个用于检索Messages
和actor_id
因此如何结合查询和获得正确的结果。 我的查询喜欢。
var Query1 = fbApp.Query("SELECT uid, name, pic_square FROM user WHERE uid = me() OR uid IN (SELECT uid2 FROM friend WHERE uid1 = me())");
var newsFeed = fbApp.Query("SELECT post_id, actor_id, target_id, message FROM stream WHERE filter_key in (SELECT filter_key FROM stream_filter WHERE uid=me() AND type='newsfeed') AND is_hidden = 0");
谢谢..!!
Enumerable.Union方法使您可以合并两个结果(前提是两个都返回相同类型的枚举)。 Enumerable.Intersect可以帮助您仅找到两个列表中都存在的用户。
从MSDN:
int[] ints1 = { 5, 3, 9, 7, 5, 9, 3, 7 };
int[] ints2 = { 8, 3, 6, 4, 4, 9, 1, 0 };
IEnumerable<int> union = ints1.Union(ints2);
foreach (int num in union)
{
Console.Write("{0} ", num);
}
/*
This code produces the following output:
5 3 9 7 8 6 4 1 0
*/
所以对你来说是这样的:
var combinedList = Query1.Union(newsFeed);
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