asp.net mvc - MVC Model Validation Fails Followed by Empty Response -

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i'm testing screens in mvc application html input in fields of text , i'm not sure what's wrong.

for of fields validation summary shown expected when enter text suspect characters <b>bold</b> framework invalidates model before controller code hit , empty response server.

the string property in question decorated in model this:

[stringlength(1000, errormessage = "must under 1000 characters long"), datatype(datatype.multilinetext, errormessage = "text error")]

why validation on 1 field generate empty response?


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