Shulou(Shulou.com)06/03 Report--

This article mainly shows you "how to use .NET + JS to prompt user input". The content is easy to understand and clear. I hope it can help you solve your doubts. Let me lead you to study and learn this article "how to use .NET + JS to prompt user input".

Step 1: the following is the core code, which can be referenced or encapsulated on the page.

Function textLimitCheck (thisArea, maxLength, SpanId)

{

If (thisArea.value.length > maxLength)

{

ThisArea.value = thisArea.value.substring (0, maxLength)

ThisArea.focus ()

}

/ * write back the value of span. Currently fill in the text * /

Var varss=' (remaining words:'+ (maxLength-thisArea.value.length) +')'

Document.getElementById (SpanId) [xss_clean] = varss

}

Step 2: apply this function to the text box

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.