我的模型目前都有一个Id(主要关键),但提及其他模型时没有使用数字子,而这些数字是标语。 我期待欧洲论坛像我所期望的那样为这项工作提供灵丹妙药。 然而,我看到许多问题和例子,明确灌输外国钥匙。 要么我缺少一些东西,要么期望框架太大,要么是如何使用框架?
What is the use of default keyword in C#? Is it introduced in C# 3.0 ?
我的模型目前都有一个Id(主要关键),但提及其他模型时没有使用数字子,而这些数字是标语。 我期待欧洲论坛像我所期望的那样为这项工作提供灵丹妙药。 然而,我看到许多问题和例子,明确灌输外国钥匙。 要么我缺少一些东西,要么期望框架太大,要么是如何使用框架?
你们迫切需要明确宣布外国钥匙。 否则,欧洲自由贸易联盟的法典将首先形成一种与物体参照的关系,一种与收集物体参考资料的关系。 唯一需要的是初级补贴。
现在,明确宣布外国钥匙在必须绘制具体领域的地图或希望与外国钥匙合作而不包括这些关系时,可能是方便的。 在一项地雷项目中,我还威胁我的实体(如果是你的话,是模范)是我的组织。 因此,一心一意要建立关系。 我使用明确的外国钥匙在其它数据中装载,例如:
var student = service.GetStudent();
var class = service.GetClassById(student.ClassId);
所有这一切都取决于实际要求,欧洲自由贸易联盟的法典首先给你一个实现你们需要的良好工具。
What is the use of default keyword in C#? Is it introduced in C# 3.0 ?
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