11 Examples of Advanced Usage of Input Elements in Web Forms

1. Cancel the dotted box when the button is pressed <br />Add the attribute value hideFocus or HideFocus=true in the input
2. Read-only text box content <br />Add the attribute value readonly to input
3. Prevent the TEXT document from being cleared when going back (the style content can be used as a class reference)
<INPUT style=behavior:url(#default#savehistory); type=text id=oPersistInput>
4. The ENTER key moves the cursor to the next input box
<input onkeydown="if(event.keyCode==13) event.keyCode=9" >
5. Only Chinese (flashing)
<input onkeyup="value=value.replace(/[ -~]/g,'')" onkeydown="if(event.keyCode==13) event.keyCode=9">
6. Only numbers (flashing)
<input onkeyup="value=value.replace(/[^\d]/g,'') "onbeforepaste="clipboardData.setData('text',clipboardData.getData('text').replace(/[^\d]/g,''))">
7. Only numbers (no flashing)
<input style="ime-mode:disabled" onkeydown="if(event.keyCode==13) event.keyCode=9" onKeyPress="if ((event.keyCode<48 event.keyCode>57)) event.returnValue=false">
8. Only English and numbers can be entered (flashing)
<input onkeyup="value=value.replace(/[\W]/g,'')" onbeforepaste="clipboardData.setData('text',clipboardData.getData('text').replace(/[^\d]/g,''))">
9. Block input method
<input type="text" name="url" style="ime-mode:disabled" onkeydown="if(event.keyCode==13) event.keyCode=9">
10. Only numbers, decimal points, and minus signs (-) can be entered (no flashing)
<input onKeyPress="if (event.keyCode!=46 && event.keyCode!=45 && (event.keyCode<48 event.keyCode>57)) event.returnValue=false">
11. Only two decimal places or three decimal places can be entered (flashing)
<input maxlength=9 onkeyup="if(value.match(/^\d{3}$/)) value=value.replace(value,parseInt(value/10)) ;value=value.replace(/\.\d*\./g,'.')" onKeyPress="if((event.keyCode<48 event.keyCode>57) && event.keyCode!=46 && event.keyCode!=45 value.match(/^\d{3}$/) /\.\d{3}$/.test(value)) {event.returnValue=false}" id=text_kfxe name=text_kfxe>