Text box validation using regular expression in asp.net

Question

I have a textbox and have to use the regular expressions in asp.net

My text should not allow the spaces in first and last place.

Output should be:

Valid: [India Bangalore]

Not valid: [ India Bangalore ]

i.e : user can enter the spaces in between the words but not in first position and last position.

If you have solution in JavaScript that is also fine.

Why not call .Trim() and don't bother the user about the spaces? — Adrian Iftode
– Adrian Iftode, Commented Oct 19, 2011 at 15:53

Sabre · Accepted Answer · 2011-10-19 15:53:39Z

1

Trim() should remove any trailing or leading spaces.

answered Oct 19, 2011 at 15:53

Sabre

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Comments

Dindar · Accepted Answer · 2011-10-19 16:20:16Z

0

Try this please :

^[^\s].*[^\s]$

It simply match input which: not to start with any white space ^[^\s] followed by any character even white spaces .* and not end with any white space [^\s]$.

Any way calling Trim() method on input string in server-side is much easy .

edited Oct 19, 2011 at 16:20

answered Oct 19, 2011 at 15:59

Dindar

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