esp32, button onclick Can't find variable: of function - function

I cant get any of the buttons using onclick to recognise the functions. I get an error "cant find variable". Im very new to all this and at a loss. It doesn't matter which button I click I have the same issues with all of them.
in the below code,
I click on <button onclick="show_admin()">Admin</button> which should call function show_admin().. What am I doing wrong please.
Inspector output
const char main_page[] PROGMEM = R"=====(
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset='UTF-8'">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="refresh" content="500; url=/">
<title>System Settings</title>
<body onload="show_admin()">
<div class="banner">
<h1>X Controller</h1>
</div>
<div class="split left">
<div class="centered">
These are my button
<button onclick="show_admin()">Admin</button>
<br/>
<button onclick="show_wifi()">WIFI</button>
<br/>
<button onclick="show_tags()">Tags</button>
<br/>
</div>
</div>
<div class="split right">
<div class="centered" id="showdata">
</div>
</div>
</body>
<script>
These are my functions
function show_admin() {var table_data = <h1>Admin Settings</h1><br/>%s<br/>
<form action="/ADMINSetting" method="POST">
<table><tr>
<td> User Name </td> <td> <input type="String" name="UserName" placeholder="%s"></td>
</tr><tr>
<td> Password </td> <td> <input type="String" name="UserPass" placeholder="%s">
</td></tr></table>
<input type="submit" value="Update Admin Details">
</form>
document.getElementById("showdata").innerHTML = table_data
}
function show_wifi() { var table_data = <h1>WIFI Settings</h1><br/>%s<br/>
<form action="/WIFISetting" method="POST">
<table>
<tr>
<td> SSID Network </td> <td> <input type="String" name="WifiSsid" placeholder="%s"></td>
</tr><tr>
<td> SSID Password </td> <td> <input type="String" name="SsidPass" placeholder="%s"></td>
</tr>
</table>
<input type="submit" value="Update Wifi Details">
</form>
document.getElementById("showdata").innerHTML = table_data
}
function show_tags() { let table_data = <h1>Tag Settings</h1><br/>%s<br/>
<form action="/DEVICESetting" method="POST">
<table>
<tr>
<td> Access Tag 1 </td> <td> <input type="String" name="TAG1" placeholder="%s"></td>
</tr>
<tr>
<td> Access Tag 2 </td> <td> <input type="String" name="TAG2" placeholder="%s"></td>
</tr>
<tr>
<td> Cleaner Tag 1 </td> <td> <input type="String" name="CTAG1" placeholder="%s"></td>
</tr>
</table>
<input type="submit" value="Update BLE Tag Details">
</form>
document.getElementById("showdata").innerHTML = table_data
}
</script>
</body>
</html>
)=====";
I have tried rearranging the function and moving its position. with no luck

Unless you have JSX installed, You can't just stick HTML elements into JavaScript like that. You will need to use quotes around all the HTML.
It looks like you're reusing the same tags anyway, why not stick all those tags into the HTML portion and update the values in Javascript? You can also update the CSS through JavaScript and set display:none if you want to hide an unused element.

I added the below to the html section
<div class="split right">
<div class="centered" id="showdata">
<form id="adminForm">
<table>
<tr>
<td> User Name </td>
<td>
<input type="String" name="UserName" placeholder="%s">
</td>
</tr>
<tr>
<td> Password </td>
<td>
<input type="String" name="UserPass" placeholder="%s">
</td>
</tr>
</table>
<input type="submit" value="Update Admin Details">
</form>
and the following to the script section
function admin(){
document.getElementById("wifiForm").style.display="none";
document.getElementById("tagForm").style.display="none";
document.getElementById("adminForm").style.display="block";
}

Related

Submit not submitting form but moving cursor to input field

I'm out of options and a bit frustrated. I'm not that familiar with HTML but I have got two forms one where a button of the type="submit" sends my view model to the server side controller and this here where it does not do it. In this form, if I click the submit button the cursor gets moved to the Surcharges[i].Price input field in my table instead. The only difference between the two forms is that this form here has input fields in the table whereas the other has select fields.
<form autocomplete="off" asp-controller="PriceList" asp-action="UpdateSurchargeFixPrices" enctype="multipart/form-data">
<div class="container">
<div class="card">
<div class="card-header bg-primary text-white">
<h4 class="text-center">#localizer["PriceListEdit"]</h4>
</div>
<div class="card-body">
<input hidden value="#Model.BackTo" asp-for="BackTo" />
<table class="table">
<thead>
<tr class="table-secondary">
<th>#localizer["Bezeichnung"]</th>
<th>#localizer["Gruppe"]</th>
<th>#localizer["Code"]</th>
<th>#localizer["Maximaler Wert in"] #Model.Currency</th>
<th>#localizer["Preis in"] #Model.Currency</th>
</tr>
</thead>
<tbody>
#if (Model.Surcharges != null)
{
for (int i = 0; i < Model.Surcharges.Count; i++)
{
<tr>
<td><input hidden value="#Model.Surcharges[i].Id" asp-for="Surcharges[i].Id" /><input value="#Model.Surcharges[i].Description" asp-for="Surcharges[i].Description" /></td>
<td>
<input value="#Model.Surcharges[i].Group" asp-for="Surcharges[i].Group" />
</td>
<td>
<input value="#Model.Surcharges[i].Code" asp-for="Surcharges[i].Code" />
</td>
<td>
<input value="#Model.Surcharges[i].MaxValue" asp-for="Surcharges[i].MaxValue" />
</td>
<td>
<input value="#Model.Surcharges[i].Price" asp-for="Surcharges[i].Price" />
</td>
</tr>
}
}
</tbody>
</table>
</div>
</div>
<a class="btn btn-primary" asp-controller="PriceList" asp-action="BackTo" asp-route-backTo="#Model.BackTo">#localizer["zurück"]</a>
<a class="btn btn-primary" asp-controller="PriceList" asp-action="NewSurchargeFixPrice">#localizer["neuer Aufschlag"]</a>
<button class="btn btn-primary" type="submit">#localizer["speichern"]</button>
</div>
</form>
I change the input field to
< input formnovalidate="formnovalidate".../>
and now I can reach the breakpoint in my controller.

Change input format in dynamic table: dropdown, number, date

I'm working on dynamic 3 column table that has 3 input text type : Product, quantity and date
This works good but i want to change type format:
Product column => Dropdown type
Quantity column => number type
Date column => Date type (dd-mm-yyyy)
How i do change it?
Thank you
Original source: link
Code online: https://jsfiddle.net/bvotcode/r61ptxe9/7/
HTML
<body>
<div id="wrapper">
<table align='center' cellspacing=2 cellpadding=5 id="data_table" border=1>
<tr>
<th>Product</th>
<th>Quantity</th>
<th>Date</th>
</tr>
<tr id="row1">
<td id="product_row1">Car</td>
<td id="quantity_row1">10</td>
<td id="date_row1">20/12/2021</td>
<td>
<input type="button" id="edit_button1" value="Edit" class="edit" onclick="edit_row('1')">
<input type="button" id="save_button1" value="Save" class="save" onclick="save_row('1')">
<input type="button" value="Delete" class="delete" onclick="delete_row('1')">
</td>
</tr>
<tr id="row2">
<td id="product_row2">Book</td>
<td id="quantity_row2">22</td>
<td id="date_row2">26</td>
<td>
<input type="button" id="edit_button2" value="Edit" class="edit" onclick="edit_row('2')">
<input type="button" id="save_button2" value="Save" class="save" onclick="save_row('2')">
<input type="button" value="Delete" class="delete" onclick="delete_row('2')">
</td>
</tr>
<tr id="row3">
<td id="product_row3">Laptop</td>
<td id="quantity_row3">44</td>
<td id="date_row3">19/01/2022</td>
<td>
<input type="button" id="edit_button3" value="Edit" class="edit" onclick="edit_row('3')">
<input type="button" id="save_button3" value="Save" class="save" onclick="save_row('3')">
<input type="button" value="Delete" class="delete" onclick="delete_row('3')">
</td>
</tr>
<tr>
<td><input type="text" id="new_product"></td>
<td><input type="text" id="new_quantity"></td>
<td><input type="text" id="new_date"></td>
<td><input type="button" class="add" onclick="add_row();" value="Add Row"></td>
</tr>
</table>
</div>
</body>
</html>
</body>
CSS
.pt-3-half { padding-top: 1.4rem; }
Javascript
function edit_row(no)
{
document.getElementById("edit_button"+no).style.display="none";
document.getElementById("save_button"+no).style.display="block";
var product=document.getElementById("product_row"+no);
var quantity=document.getElementById("quantity_row"+no);
var date=document.getElementById("date_row"+no);
var product_data=product.innerHTML;
var quantity_data=quantity.innerHTML;
var date_data=date.innerHTML;
product.innerHTML="<input type='text' id='product_text"+no+"' value='"+product_data+"'>";
quantity.innerHTML="<input type='text' id='quantity_text"+no+"' value='"+quantity_data+"'>";
date.innerHTML="<input type='text' id='date_text"+no+"' value='"+date_data+"'>";
}
function save_row(no)
{
var product_val=document.getElementById("product_text"+no).value;
var quantity_val=document.getElementById("quantity_text"+no).value;
var date_val=document.getElementById("date_text"+no).value;
document.getElementById("product_row"+no).innerHTML=product_val;
document.getElementById("quantity_row"+no).innerHTML=quantity_val;
document.getElementById("date_row"+no).innerHTML=date_val;
document.getElementById("edit_button"+no).style.display="block";
document.getElementById("save_button"+no).style.display="none";
}
function delete_row(no)
{
document.getElementById("row"+no+"").outerHTML="";
}
function add_row()
{
var new_product=document.getElementById("new_product").value;
var new_quantity=document.getElementById("new_quantity").value;
var new_date=document.getElementById("new_date").value;
var table=document.getElementById("data_table");
var table_len=(table.rows.length)-1;
var row = table.insertRow(table_len).outerHTML="<tr id='row"+table_len+"'><td id='product_row"+table_len+"'>"+new_product+"</td><td id='quantity_row"+table_len+"'>"+new_quantity+"</td><td id='date_row"+table_len+"'>"+new_date+"</td><td><input type='button' id='edit_button"+table_len+"' value='Edit' class='edit' onclick='edit_row("+table_len+")'> <input type='button' id='save_button"+table_len+"' value='Save' class='save' onclick='save_row("+table_len+")'> <input type='button' value='Delete' class='delete' onclick='delete_row("+table_len+")'></td></tr>";
document.getElementById("new_product").value="";
document.getElementById("new_quantity").value="";
document.getElementById("new_date").value="";
}
You're using the type="text" for all of the <input> tags. You should consider changing the type of the inputs in your edit_row function.
For numbers, the type of input should be number;
For dates, date;
And finally, to render a dropdown box, the best solution is to use a <select> tag instead of an <input>. Don't forget to write all the options of your dropdown inside of <option> tags (which should be all inside of one <select> tag); Here you can find a simple explanation on how to use the <select> tag.

HTML Login Page

I am trying to create a simple login page for a server:
<html>
<head>
<title>Login Page</title>
</head>
<body>
<form name="loginForm" method="post" action="login.php">
<table>
<tr>
<td colspan=2><center><font size=4><b>HTML Login Page</b></font>
</center></td>
</tr>
<tr>
<td>Username:</td>
<td><input type="text" size=25 name="userid"></td>
</tr>
<tr>
<td>Password:</td>
<td><input type="Password" size=25 name="pwd"></td>
</tr>
<tr>
<td ><input type="Reset"></td>
<td><input type="submit" onclick="return check(this.form); load();"
value="Login">
</td>
</tr>
</table>
</form>
<script language="javascript">
function check(form)
{
if(form.userid.value == "n" && form.pwd.value == "n")
{
return true;
}
else
{
alert("Error Password or Username")
return false;
}
</script>
</body>
</html>
The HTML above is how i would like the page to look, however i want to add another function that when the login button is pressed i would like the page to take me to a different page like google for example.
Is there anyway I can do this?
Through Html you can do something like:
<form action="http://google.com">
<input type="submit" value="Go to Google">
</form>

HTML with JavaScript Form validation and JQuery Mobile

In a HTML form I am using JavaScript Form validation to avoid empty fields. This is the code for the form:
<form method="post" name="form1" onsubmit="return validateForm()" action="<?php echo $editFormAction; ?>">
<table align="center">
<tr valign="baseline">
<td nowrap align="right">Nickname:</td>
<td>
<input type="text" name="nickname" value="" size="32">
</td>
</tr>
<tr valign="baseline">
<td nowrap align="right">Email:</td>
<td><input type="text" name="email" value="" size="32"></td>
</tr>
<tr valign="baseline">
<td nowrap align="right">Password:</td>
<td><input type="text" name="password" value="" size="32"></td>
</tr>
<tr valign="baseline">
<td nowrap align="right"> </td>
<td><input type="submit" value="Insert record"></td>
</tr>
</table>
<input type="hidden" name="estado" value="0">
<input type="hidden" name="MM_insert" value="form1">
</form>
And this is the JavaScript function:
<script>
function validateForm()
{
var x=document.forms["form1"]["nickname"].value;
if (x==null || x=="")
{
alert("First name must be filled out");
return false;
}
}
</script>
As expected, if the user clicks on the submit button and the field 'nickname' is empty, the Alert Dialog is shown, but after closing it, the form is submitted. I am using Dreamweaver as editor and JQuery Mobile in my web, may be this is the problem.
Any help is welcome.
Working example: http://jsfiddle.net/Gajotres/vds2U/50/
HTML:
<!DOCTYPE html>
<html>
<head>
<title>jQM Complex Demo</title>
<meta http-equiv='Content-Type' content='text/html; charset=utf-8'/>
<meta name="viewport" content="width=device-width; initial-scale=1.0; maximum-scale=1.0; minimum-scale=1.0; user-scalable=no; target-densityDpi=device-dpi"/>
<link rel="stylesheet" href="http://code.jquery.com/mobile/1.4.2/jquery.mobile-1.4.2.min.css" />
<!--<script src="http://code.jquery.com/jquery-1.10.1.min.js"></script>-->
<script src="http://code.jquery.com/mobile/1.4.2/jquery.mobile-1.4.2.min.js"></script>
</head>
<body>
<div data-role="page" id="index" data-theme="a" >
<div data-role="header">
<h3>
First Page
</h3>
Next
</div>
<div data-role="content">
<form method="post" id="form1" name="form1" action="" data-ajax="false">
<table align="center">
<tr valign="baseline">
<td nowrap align="right">Nickname:</td>
<td>
<input type="text" name="nickname" value="" size="32"/>
</td>
</tr>
<tr valign="baseline">
<td nowrap align="right">Email:</td>
<td><input type="text" name="email" value="" size="32"/></td>
</tr>
<tr valign="baseline">
<td nowrap align="right">Password:</td>
<td><input type="text" name="password" value="" size="32"/></td>
</tr>
<tr valign="baseline">
<td nowrap align="right"> </td>
<td><input type="submit" value="Insert record"/></td>
</tr>
</table>
<input type="hidden" name="estado" value="0"/>
<input type="hidden" name="MM_insert" value="form1"/>
</form>
</div>
<div data-role="footer" data-position="fixed">
</div>
</div>
<div data-role="page" id="second" data-theme="a" >
<div data-role="header">
<h3>
Second Page
</h3>
Back
</div>
<div data-role="content">
</div>
<div data-role="footer" data-position="fixed">
</div>
</div>
</body>
</html>
JavaScript:
$(document).on('submit', '#form1', function(){
var x=document.forms["form1"]["nickname"].value;
if (x==null || x=="") {
alert("First name must be filled out");
return false;
} else {
return true;
}
});
Changes:
jQuery Mobile has its own way of form handling, you need to disable it if you want to have classic form handling. It is done via attribute data-ajax="false".
Never use inline javascript with jQuery Mobile, I mean NEVER.
For me this is working fine :
<script>
function validateForm()
{
var x=document.forms["form1"]["nickname"].value;
if (x==null || x=="")
{
alert("First name must be filled out");
return false;
}else{
return true;
}
}
</script>
Just added a else statement. It's working fine for me.
I think your code should work. But If not you can make some changes as
Change 1 Remove Submit event from tag
<form method="post" name="form1" action="<?php echo $editFormAction; ?>">
Change 2.
Change submit button to default button and validate event here
<input type="button" onclick="javascript:validateForm();" value="Insert record">
Change 3.
Now change in javascript Add code form sub
<script>
function validateForm()
{
var x=document.forms["form1"]["nickname"].value;
if (x==null || x=="")
{
alert("First name must be filled out");
}else{
document.forms["form1"].submit();
}
}
</script>

why is push not updating the list

javascript
$scope.addCustomer = function() {
$scope.customers=[{name:'bob',city:'delhi'},{name:'david',city:'bombay'}];
$scope.customers.push({name:$scope.newCustomer.name,city:$scope.newCustomer.city
}
html
<br/>
Customer name :<br />
<input type="text" ng-model="newCustomer.name" />
<br/>
Customer city :<br />
<input type="text" ng-model="newCustomer.city" />
<button ng-click="addCustomer()">Add customer</button>
I tried listing all the customer names in an unordered list but the new customer is not getting added to the list.
How can i add the niew customer to the list ?
Try this:
$scope.customers=[{name:'bob',city:'delhi'},{name:'david',city:'bombay'}];
$scope.addCustomer = function() {
$scope.customers.push({name:$scope.newCustomer.name,city:$scope.newCustomer.city});
}
Working exmaple: http://jsfiddle.net/bateast/aVWpQ/
Don't assign value to $scope.customers in addCustomer().
You can try this:
<div ng-controller="test">
Customer name :<br />
<input type="text" ng-model="newCustomer.name" />
<br/>
Customer city :<br />
<input type="text" ng-model="newCustomer.city" />
<button ng-click="addCustomer()">Add customer</button>
<table>
<thead>
<tr>
<th>name</th>
<th>city</th>
</tr>
</thead>
<tbody>
<tr ng-repeat="customer in customers">
<td>{{customer.name}}</td>
<td>{{customer.city}}</td>
</tr>
</tbody>
</table>
</div>
<script>
function test($scope){
$scope.customers=[{name:'bob',city:'delhi'},{name:'david',city:'bombay'}];
$scope.addCustomer = function(){
$scope.customers.push({name:$scope.newCustomer.name,city:$scope.newCustomer.city});
alert($scope.customers.length)
}
}
</script>