how to validate textbox in asp.net using javascript

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i want to validate a text which will not allow special characters and allow alphanumeric keys, space, backspace, delete,right and left arrow, tab.

Posted 2-May-15 18:18pm

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jgakenhe 3-May-15 0:28am

You need to use Regular Expressions.

http://stackoverflow.com/questions/839483/special-character-validation-using-javascript

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Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ) · Answer 1 · 2015-05-02T19:08:00

You can either use Regex or handle the onkeypress event and write you logic to restrict the specific characters.

See How to restrict special characters being entered in textbox using javascript?[^].

Posted 2-May-15 19:08pm

Abhinav S · Answer 2 · 2015-05-02T19:08:00

Posted 2-May-15 19:08pm