Question

任何onkeyup或onclick javascript代码，可帮助我在9个字符后提交表单。

我的HTML代码。我正在使用AJAX来获取数据。我尝试了很多脚本。没有人适合我：'（

Enter Your Car No : <input type="text" name="car"  maxlength="9" id="carno" value="<?php echo $_REQUEST["carno"]; ?>"/>

Answer 1

Enter Your Car No : <input type="text" name="car"  maxlength="9" id="carno" onkeypress="yourFunction()" value="<?php echo $_REQUEST["carno"]; ?>"/>

<script>
function yourFunction(){
  var textValue = document.getElementById('carno').value;
  if(textValue.length >= 9){
       //implement your ajax code
  }
}
</script>


Hai here i am calling function on each key press in that text field and i am getting the value using id and checking that length if its >=9 (ur requirement) so write ajax code

Answer 2

试试这个：

Enter Your Car No : <input type="text" name="car"  maxlength="9" id="carno" value="<?php echo $_REQUEST["carno"]; ?>" onkeypress="submitForm()" onclick="submitForm()"/>
<script>
   function submitForm(){
       var len = document.getElementById("carno").value.length;
       if(len >= 9 ){
           //submit form code
       }else{
           return false;
       }
   }
</script>

onkeyup或onclick JavaScript自动提交表单

2 个答案: