javascript validation on text boxes created dynamically

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In a form a text box is created dynamically by clicking on add button such that the text box is created in a new row.Now my problem is the validation of text boxes which wer

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盖世英雄少女心

2021-01-18 23:06

on the submit event of the form you simply need to collect all input text boxes that you find in the form and pass them into a validation function.

Put this code in the <head> section of your page

//This function here is only a cross-browser events stopper
stopEvent = function(ffevent)
{
   var current_window = window;

   if(current_window.event) //window.event is IE, ffevent is FF
   {
      //IE
      current_window.event.cancelBubble = true; //this stops event propagation
      current_window.event.returnValue = false; //this prevents default (usually is what we want)
   }
   else
   {
      //Firefox
      ffevent.stopPropagation();
      ffevent.preventDefault();
   };
}

function validateAllInputBoxes(ffevent)
{
   var inputs = document.getElementsByTagName('input');
   for(var i = 0; i < inputs.length; ++i)
      if(inputs[i].type === 'text')
         //@Satish, maybe below you wrote by mistake if(inputs[i].value = '') thus all input elements values get cleared out.
         if(inputs[i].value === '') 
         {
            alert("form could not be sent one input text field is empty");
            stopEvent(ffevent);
         }
}

and in the the <form> tag place the following code:

onsubmit="validateAllInputBoxes(event);"

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