Validate spaces using regular expression

Question

I want to validate a field using regular expression as a data annotation. Suppose a user entered only spaces in a field need to alert a message something like "Spaces are not allowed". I'm using MVC4 and EF

It sounds like you want to reject inputs that consists of only whitespaces, but your error message that whitespaces aren't allowed at all. Which is it? — sisve
– sisve, Commented Mar 7, 2014 at 7:24

HardikS · Accepted Answer · 2014-03-07 07:21:38Z

1

[RegularExpression(@"^[\S]*$", ErrorMessage = "White space found")]

and then probably in the view you can alert the user.

edited Mar 7, 2014 at 7:21

HardikS

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answered Mar 7, 2014 at 7:11

Suraj

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aloisdg · Accepted Answer · 2014-03-07 07:20:30Z

0

If this is for an HTML form, you can use simple HTML.

<form onsubmit="alert('checked');return false;">
    <input required pattern=".*\S+.*" title="This field is required">
    <input type="submit" value="check" />
</form>

answered Mar 7, 2014 at 7:20

aloisdg

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