CODEWITHSUNDEEP
asp.net
user988595
user988595

Reputation: 41

Code for Alpha Numeric used in Regular Expression in asp.net

I need code for alpha numeric ,which is used in regular expression in asp.net to enter the data inside the textbox .

Upvotes: 4

Views: 14171

Answers (3)

William Calvin
William Calvin

Reputation: 625

I guess below should be enough.

^[0-9A-Za-z]*$

Here is the break down

^ indicates start of the string
0-9 all number from 0 to 9
A-Z all Upper case character
a-z all small case character
* indicates 0 or more character
$ end of string

Upvotes: 1

4b0
4b0

Reputation: 22323

Regex for alpha numeric:
"^[a-zA-Z0-9]*$"
If you don't want empty strings, use + instead of *.

Upvotes: 3

Nag
Nag

Reputation: 689

Use this ValidationExpression="^[a-zA-Z0-9.@]{0,25}$". It accepts . and @ symbol also. If not remove them

<asp:RegularExpressionValidator id="RegularExpressionValidator1" runat="server" ControlToValidate="TextBox1" ValidationExpression="^[a-zA-Z0-9.@]{0,25}$" ErrorMessage="Only Alphanumeric"></asp:RegularExpressionValidator>

Upvotes: 0

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