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Hi 
How to restrict the special characters being entered in textbox (ASP.Net, C#.Net, jQuery).
My Current Validation is working as expected [when user types in textbox],
 but the problem is it’s getting failed when user Copy Special Characters (#,{,},|) and Paste into the textbox then it’s not working. 
How can I prevent the user to Type/Copy Paste Special Characters into my Textbox?

Please assist me. 
Thanks.


What I have tried:

My Current Validation is working as expected [when user types in textbox],
but the problem is it’s getting failed when user Copy Special Characters (#,{,},|) and Paste into the textbox then it’s not working.
Posted
Updated 15-Aug-17 7:36am
Comments
BillWoodruff 14-Aug-17 14:58pm
   
What are you doing now when a paste is done ? Anything ? In WinForms you can use a MaskedTextBox for this. Foe ASP,NET.JQuery, possibly this mifht be useful:

https://stackoverflow.com/questions/3096100/i-need-masked-textbox-in-asp-net
Kornfeld Eliyahu Peter 15-Aug-17 1:14am
   
How do you handle user input? Events? 3rd party? Do you looking for 'paste' event?

1 solution

Yugesh, try this:
$("#txtBoxId").bind("paste", function(e){    
    var pastedText = e.originalEvent.clipboardData.getData('text');
    validate(pastedText);
} );


Remember this time in validate function you have to validate whole pasted data for any special character presence.

Hope it helps.
   

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