ASP.NET limit max characters across three text boxes and show number characters used.
I am creating an application to send a text message from a web page. The text message is limited to 160 characters. I have 3 text boxes, name (single line), number (single line), and message (multi line).
The total number of characters allowed for the 3 boxes is 160 and I would like to show on the web page the current number of characters used.
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