Regular Expression For Combination of alpha numerics

Naresh Babu Gopavaram

14y2.8k.NET

hi every one
can any one help me out of the regular expression for the combination of alpha numeric.It should not allow only digits or alphabets.

abcd --not
123-not

it should like

a2bc123fdsa

3 Replies

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Vulpes14y ago
Accepted answer
More difficult than it sounds but try this:

string regExp = @"^(?![a-zA-Z]+$)(?!\d+$)([a-zA-Z]|\d)+$";
Naresh Babu Gopavaram14y ago
Thanks Vulpes you saved my time it is working perfect.
Kunal Vaishya14y ago
Dear try

this
```
^\d*[a-zA-Z][a-zA-Z0-9]*$
```