仅在知道关联属性的字符串名称时查询该关联属性

Question

I have a entity framework class A. It has a 1 to many relationship with B. The property name of this relationship in A is AtoB.

At runtime if I am given a string of "AtoB" is there a way to issue a linq query to A on the AtoB property to get a list of all the B's associated with that A?

So basically I won't know until runtime what property on A that I should be running a linq query on.

// Pseudo code
int id = GetID();
string tableName = GetTableName();
var v = context.[tableName].Where(t => t.ID == id);

Answer 1

您可以使用Dynamic Linq执行字符串Linq查询-只需在适当的地方将属性名称嵌入字符串即可。