Entity framework 4 在Devart实体框架中添加视图之间的关系
我想知道EF中视图之间的关系。我跟随这篇文章在xml文件中修改它。 我犯了一个错误Entity framework 4 在Devart实体框架中添加视图之间的关系,entity-framework-4,odata,devart,Entity Framework 4,Odata,Devart,我想知道EF中视图之间的关系。我跟随这篇文章在xml文件中修改它。 我犯了一个错误 Custom tool error: Multiplicity is not valid in Role 'VIEW' in relationship 'FK_'. Because the Dependent Role refers to the key properties, the upper bound of the multiplicity of the Dependent Role must be 1
Custom tool error: Multiplicity is not valid in Role 'VIEW' in relationship 'FK_'. Because the Dependent Role refers to the key properties, the upper bound of the multiplicity of the Dependent Role must be 1.