text not submitting

[rizwansyed]

Hi

I have a code  where am using a select drop down and for 5th variable a text box will be opened and need to enter the value.

But the entered value is not submitting at the server .

 <form action="/COHARToutputsimulation" id="chout" method="post" target="formDestination">

                        <font size="5"> <strong>Output Simulation-HART:
</font></strong>
<select name="selected" onchange="cooutsim(this.value)">
  <option value="0"> Simulate - 4 mA</option>
  <option value="1">Simulate - 8 mA</option>
  <option value="2">Simulate - 12 mA</option>
  <option value="3">Simulate - 16 mA</option>
  <option value="4">Simulate - 20 mA</option>
  <option value="5">Simulate value </option>
</select>
   
<input type="text" id="ousi" size="10px" style="display:none;">
&emsp;
<input type="submit" style="font-size:10pt;" onclick="chrtout(event)">
</form>
<script>
function cooutsim(val)
{
	if(val == 5)
	{
		document.getElementById("ousi").style.display="inline";
	}
	else
	{
		document.getElementById("ousi").style.display="none";
	}
}
function chrtout(event) {
   var myForm  = document.getElementById('chout');
   event.preventDefault();
   formData = new FormData(myForm);
     var xhttp = new XMLHttpRequest();
     xhttp.onreadystatechange = function() {
       if (this.readyState == 4 && this.status == 200) {
         document.getElementById("chout").innerHTML =this.responseText;
       }
     };

     xhttp.open("POST", "COHARToutputsimulation",true);
     xhttp.send(formData);
     return true;

   }
</script>

What is the issue am not getting.

Please suggest

Thanks and Regards

Rizwan Syed

[dsonesuk]

You need a name attribute value, NO value means there won't be any identifier to retrieve the value. All form inputs, submit, textarea, select etc require name attribute value