c# – 如何加载实体框架预编译视图

我们的想法是生成的类适用于DBContext中的所有集合.事实上,如果视图与您拥有的上下文(哈希比较)不匹配,您将收到运行时错误.

例如

/// <Summary>
    /// The constructor stores the views for the extents and also the hash values generated based on the metadata and mapping closure and views.
    /// </Summary>
    public ViewsForBaseEntitySets24F9763E92A9F77E970A08557E1855C7579989F684539A5FB429069F966B9B7B()
    {
        this.EdmEntityContainerName = "Ef6Ctx3";
        this.StoreEntityContainerName = "CodeFirstDatabase";
        this.HashOverMappingClosure = "d7686982aa7cffcf874313838914e93f78d4d7d6d345d19261ef5edc8b4e96dd";
        this.HashOverAllExtentViews = "7b8857ee3ee44d13b2479e43c54dbdfb6bc8914e222c7891afcfcd9a29b06b2f";
        this.ViewCount = 2;
    }

但是对于给定的视图,您可以返回不同的字符串

/// <Summary>
    /// return view for CodeFirstDatabase.pocotest
    /// </Summary>
    private System.Collections.Generic.KeyValuePair<string,string> GetView0()
    {
        return new System.Collections.Generic.KeyValuePair<string,string>("CodeFirstDatabase.pocotest",@"
SELECT VALUE -- Constructing pocotest
    [CodeFirstDatabaseSchema.pocotest](T1.pocotest_Id,T1.pocotest_f1,T1.pocotest_f2,T1.pocotest_f2a,T1.pocotest_f3,T1.pocotest_f5,T1.pocotest_f6b)
FROM (
    SELECT 
        T.Id AS pocotest_Id,T.f1 AS pocotest_f1,T.f2 AS pocotest_f2,T.f2a AS pocotest_f2a,T.f3 AS pocotest_f3,T.f5 AS pocotest_f5,T.f6b AS pocotest_f6b,True AS _from0
    FROM Ef6Ctx3.poco1s AS T
) AS T1");
    }