here are the two files that i am using userform.html
<!--Let browser know website is optimized for mobile-->
<meta name="viewport" content="width=device-width, initial-scale=1.0"/>
</head>
<body>
<div class="container">
<div class="row">
<div class="input-field col s12">
<i class="material-icons prefix">account_circle</i>
<input id="techname" type="text" class="validate">
<label for="techname">Tech Name</label>
</div>
<div class="input-field col s12">
<i class="material-icons prefix">phone</i>
<input id="tel" type="text" class="validate">
<label for="tel">Telephone</label>
</div>
<div class="input-field col s12">
<button class="btn waves-effect waves-light" id= "btn">Add
<i class="material-icons right">send</i>
</button>
</div>
</div><!-- End Row-->
</div>
<!-- Compiled and minified JavaScript -->
<script src="https://cdnjs.cloudflare.com/ajax/libs/materialize/1.0.0/js/materialize.min.js"></script>
<script>
var TechName = document.getElementById("techname");
var Phone = document.getElementById("tel");
document.getElementById("btn").addEventListener("click",addRecord);
fucntion addRecord(){
var TechNameData = TechName.value;
var PhoneData= Phone.value;
google.script.run.appendData(TechNameData,PhoneData);
Logger.log(TechNameData);
}
</script>
</body>
code.gs
function showUserForm(){
var template = HtmlService.createTemplateFromFile("userform");
var html = template.evaluate();
html.setTitle("Data Entry");
SpreadsheetApp.getUi().showSidebar(html);
}
function appendData(TechNameData,PhoneData){
var ws = SpreadsheetApp.getActiveSpreadsheet().getSheetByName("Data_Entry");
ws.appendRow([TechNameData,PhoneData]);
}