我有一個實(shí)體框架的 6.0 數(shù)據(jù)庫第一個上下文的列表，名稱不同。它們都包含一個名為“bill”的表。我需要檢查每個數(shù)據(jù)庫的賬單表，并根據(jù)條件將信息添加到一個新數(shù)據(jù)庫中。例子 ：Company1_EntitiesCompany2_EntitiesCompany3_Entities這 3 個數(shù)據(jù)庫包含賬單表。我需要將這些賬單有條件地存儲到：All_Bills_Entities隨著公司數(shù)量的增長，我需要讓這個動態(tài)。我在想這樣的事情：Dictionary<string, DbContext> lstDB = new Dictionary<string, DbContext>();// I'm supposed to retrieve these db names from a table, but now i'm just testinglstDB.Add("00439837", new DbContext("Company1_Entities"));lstDB.Add("00439832", new DbContext("Company2_Entities"));lstDB.Add("00439839", new DbContext("Company3_Entities"));using (All_Bills_Entities main_db = new All_Bills_Entities()){    foreach(var dataBaseInfo in lstDB)    {        DbContext currentDB = dataBaseInfo.Value;        foreach (var record in currentDB.bill.ToList()) // this does not compile, there is no bill table found here        {           if(record.merchant == dataBaseInfo.Key /* && other Conditions */)           {                main_db.bill.Add(record)           }        }    }}