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I want to fill out a form when opening a page (it's a page where you edit your profile information).
Here is my code:
<head>
<script type="text/javascript">
function addValues() {
document.getElementById("datePicker").value = ViewBag.b.DateOfBirth.ToShortDateString();
document.getElementById("name").value = ViewBag.b.Username;
document.getElementById("username").value = ViewBag.b.Username;
document.getElementById("password").value = ViewBag.b.Password;
document.getElementById("lastname").value = ViewBag.b.Lastname;
}
</script>
</head>
<body onload="addValues()">
<h2>EditProfile</h2>
<form action="~/Authentication/EditProfile" method="post">
<table>
<tr>
<td>Username:</td>
<td><input type="text" name="username" id="username" /></td>
</tr>
<tr>
<td>Password:</td>
<td><input type="text" name="password" /></td>
</tr>
<tr>
<td>Name:</td>
<td><input type="text" name="name" id="name" /></td>
</tr>
<tr>
<td>Last name:</td>
<td><input type="text" name="lastname" /></td>
</tr>
<tr>
<td>Date of birth:</td>
<td><input type="date" name="dateofbirth" id="datePicker" /></td>
</tr>
<tr>
<td colspan="2">
<input type="submit" value="Save" />
</td>
</tr>
</table>
</form>
</body>
When loading a page, it doesn't fill out the information, and I can't find the mistake.
Is there a better way of doing this?
The rendered JavaScript looks like:
function addValues() {
document.getElementById("datePicker").value = 11.9.2001. 00:00:00;
document.getElementById("name").value = Mirko;
document.getElementById("username").value = micro;
document.getElementById("password").value = 123456789;
document.getElementById("lastname").value = Mijanovic;
}
991
asked Feb 01 '26 03:02
You missed setting the id for some of the <input/> elements.
<head>
<script type="text/javascript">
// Example data
const ViewBag = {
b: {
DateOfBirth: '2020-09-30',
Username: 'username',
Password: 'password',
Lastname: 'lastname'
}
};
function addValues() {
document.getElementById("datePicker").value = ViewBag.b.DateOfBirth;
document.getElementById("name").value = ViewBag.b.Username;
document.getElementById("username").value = ViewBag.b.Username;
document.getElementById("password").value = ViewBag.b.Password;
document.getElementById("lastname").value = ViewBag.b.Lastname;
}
</script>
</head>
<body onload="addValues()">
<h2>EditProfile</h2>
<form action="~/Authentication/EditProfile" method="post">
<table>
<tr>
<td>Username:</td>
<td><input type="text" name="username" id="username" /></td>
</tr>
<tr>
<td>Password:</td>
<td><input type="text" name="password" id="password" /></td>
</tr>
<tr>
<td>Name:</td>
<td><input type="text" name="name" id="name" /></td>
</tr>
<tr>
<td>Last name:</td>
<td><input type="text" name="lastname" id="lastname" /></td>
</tr>
<tr>
<td>Date of birth:</td>
<td><input type="date" name="dateofbirth" id="datePicker" /></td>
</tr>
<tr>
<td colspan="2">
<input type="submit" value="Save" />
</td>
</tr>
</table>
</form>
</body>
</html>Hope this helps,
66
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