如何显示左在asp.net多行文本框的字符数？ [英] how to show the number of characters left in a multiline textbox in asp.net?

问题描述

我有一个多行文本框，它只能包含500个字符。现在我要显示的字符数保持原样输入到文本框中的情况一样，当我们使用Twitter的用户。

I have a multiline textbox which can contain only 500 characters. Now i want to show the user the number of characters left as they are typing into the textbox as is the case when we use twitter.

请帮助

推荐答案

见的 ASP.NET文本字符计数器通过罗斯·霍金斯。

See ASP.NET Text Character Counter by Ross Hawkins.

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