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How to mask all put last 4 digits of credit card?

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Scott Marx
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Scott Marx asked on 08 Mar 2011, 04:16 AM
How would you use RadMaskTextBox to mask all but the last 4 digits of a credit card?

I want the Textbox to display as ####-####-####-1234.

Thanks in advance for your assistance.

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Veli
Telerik team
answered on 11 Mar 2011, 08:42 AM
Hello Scott,

This scenario is not supported. You cannot show both prompt characters and portions of values at the same time in RadMaskedTextBox. You can use custom javascript to implement that based on your scenario. If you share with us what exactly you are trying to implement, we may be able to advise you further. Do you need this format only for showing the last four digits of a credit card number, or also for entering such numbers? If you are only showing them to the user, and they come from the server, do you need to transfer the whole credit card number, or only the last four digits? Note that, if you send the entire number over to the client, it can be read from the markup even though it may not be visible in the textbox. Clarifying these aspects would help.

Veli
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