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MVC error Unable to cast object of type 'System.Int32' to type 'System.String'.

If you are getting following error while posting back data in MVC


Unable to cast object of type 'System.Int32' to type 'System.String'.

Check for the validation attributes on the number data types. If you have a StringLength attribute on a numeric datatype, MVC autobinding converts the field to a string and causes above error while autobinding.

Instead use RegularExpression to limit numbers in a numeric field.

 

Comments

Anonymous said…
Thanks for you post - this was my problem, except I had StringLength on a boolean!
29 July 2013 at 17:23
Anonymous said…
This comment has been removed by the author.
29 July 2013 at 17:23
Unknown said…
This comment has been removed by the author.
24 April 2014 at 00:07
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