yourtrustedfreelancer

Hi @1alejandros , Can you please match the stars rating to your review, this is the only 1 star rating and your review says you love it ( as everyone else ).

Hi, this is probably a late answer, but I was playing around and trying to figure how we could create a multi-step form and this is what I came up with.
First override form HTML render and add this code:

<!-- Circles which indicates the steps of the form: -->
  <div style="text-align:center;margin-top:40px;">
    <span class="step"></span>
    <span class="step"></span>
  </div>
<!-- Tabs are the steps of the form: -->
<div class="tab"> <p>{field:field_key}</p><p>{field:field_key}</p></div>
<div class="tab"> <p>{field:field_key}</p><p>{field:field_key}</p><p>{field:field_key}</p></div>

 <div style="overflow:auto;">
    <div style="float:right;">
      <button type="button"  id="prevBtn" onclick="nextPrev(-1)">Previous</button>
      <button type="button"  id="nextBtn" onclick="nextPrev(1)">Next</button>	
 </div>

<script>
var currentTab = 0; // Current tab is set to be the first tab (0)
showTab(currentTab); // Display the current tab

function showTab(n) {
  // This function will display the specified tab of the form...
  var x = document.getElementsByClassName("tab");
  x[n].style.display = "block";
  //... and fix the Previous/Next buttons:
  if (n == 0) {
    document.getElementById("prevBtn").style.display = "none";
				document.getElementById("subBtn").style.display = "none";

  } else {
    document.getElementById("prevBtn").style.display = "inline";
  }
  if (n == (x.length - 1)) {
    document.getElementById("nextBtn").style.display = "none";
				document.getElementById("subBtn").style.display = "inline";	
  } else {
    document.getElementById("nextBtn").style.display = "inline";
  }
  //... and run a function that will display the correct step indicator:
  fixStepIndicator(n)
}

function nextPrev(n) {
  // This function will figure out which tab to display
  var x = document.getElementsByClassName("tab");
  // Exit the function if any field in the current tab is invalid:
  if (n == 1 && !validateForm()) return false;
  // Hide the current tab:
  x[currentTab].style.display = "none";
  // Increase or decrease the current tab by 1:
  currentTab = currentTab + n;
  // if you have reached the end of the form...
  if (currentTab >= x.length) {
    // ... the form gets submitted:
    document.getElementById("testForm").submit();
    return false;
  }
  // Otherwise, display the correct tab:
  showTab(currentTab);
}

function validateForm() {
  // This function deals with validation of the form fields
  var x, y, i, valid = true;
  x = document.getElementsByClassName("tab");
  y = x[currentTab].getElementsByTagName("input");
  // A loop that checks every input field in the current tab:
  for (i = 0; i < y.length; i++) {
    // If a field is empty...
    if (y[i].value == "") {
      // add an "invalid" class to the field:
      y[i].className += " invalid";
      // and set the current valid status to false
      valid = false;
    }
  }
  // If the valid status is true, mark the step as finished and valid:
  if (valid) {
    document.getElementsByClassName("step")[currentTab].className += " finish";
  }
  return valid; // return the valid status
}

function fixStepIndicator(n) {
  // This function removes the "active" class of all steps...
  var i, x = document.getElementsByClassName("step");
  for (i = 0; i < x.length; i++) {
    x[i].className = x[i].className.replace(" active", "");
  }
  //... and adds the "active" class on the current step:
  x[n].className += " active";
}
</script>

give an id to submit button
<input type="submit" id="subBtn" value="%s"/>

and add the css styles:

		/* Hide all steps by default: */
.tab {
  display: none;
}

				/* Make circles that indicate the steps of the form: */
.step {
  height: 15px;
  width: 15px;
  margin: 0 2px;
  background-color: #bbbbbb;
  border: none;  
  border-radius: 50%;
  display: inline-block;
  opacity: 0.5;
}

.step.active {
  opacity: 1;
}

/* Mark the steps that are finished and valid: */
.step.finish {
  background-color: #4CAF50;
}

input.invalid{
  background-color: #ffdddd;
}
#subBtn{
	display:none;
	float:right;
	margin-top:10px;
}

Reference: w3schools
I hope this helps someone 🙂