Can EF Fluent Api set a minimum length?

Question

Using the Fluent API seems to have more flexibility.

So, I choose the way to follow, always use the Fluent API to determine the function that it has in db, instead of using annotations.

But here is the problem, I could not find a way to set the minimum length. Is there any way to accomplish this?

And I notice that there is not much to discuss this issue. How popular is the Fluent API?

We hope that we will choose the right part.

Answer 1

This is currently not possible with EF. If you really need to set a minimum length, you can do this with the attribute:

[MaxLength(10),MinLength(3)]
public string MyProperty {get; set;}

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Answer 2

string StringLength

[StringLength(30, MinimumLength = 5)]
public string MyStringProperty { get; set; }

https://msdn.microsoft.com/en-us/library/system.componentmodel.dataannotations.stringlengthattribute%28v=vs.110%29.aspx