Entity Framework 4.1 code first approach: how to define length of properties

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春和景丽
春和景丽 2021-02-07 00:14

As the title implies:

how is it possible to tell Entity Framework 4.1 in code first approach, that i do want some properties (in particular of type string) to have a le

3条回答
  •  后悔当初
    2021-02-07 00:25

    You can use the following way If you want a Maximum string length

    [StringLength(Int32.MaxValue)]
    

    Or

    [MaxLength]
    

    Or

    Property(m => m.Title ).IsRequired().HasMaxLength(128);
    

    Or

    [MaxLength(256)]
    

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