Question : Write a Validation Expression for RegularExpressionValidator to allow letters , numbers , space , dash and underscore ?

Answer : ValidationExpression=”^([a-zA-Z0-9_s-]*)$”

Explanation :

s = Spacing
– =  Allowing dash –
_ = Allow Underscore
a-z = Small letter
A-Z = Capital Letter
0-9 = Numeric

ASP.NET Interview Questions :

3 thoughts on “Write a Validation Expression for RegularExpressionValidator to allow letters , numbers , space , dash and underscore”
  1. These type of question can really helped me out to learn more on ASP.NET, starting with these simple applications will gain me lot and will let me know where exactly I stand.

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