I have a registration form in ASP.NET 2.0. I want to save my registration form fields either by clicking on submit button or they should be saved every five seconds.
For example I have three fields in my registration page:
UIDPWDName
The user has entered UID and PWD and whilst he is entering Name the previous values should be saved without interruption of user inputs
How would I do this in ASP.NET?
You could do this with a snippet of Javascript & jQuery. Have a function that's fired by a timer that periodically reads the form data you want to save and posts it back to a SaveDraft.aspx page. In this page persists the data somewhere (such as a database).
If the user logs out or their session is lost you can query for this data and pre-populate the form if the data exists.
On your data entry ASPX page:
// Usual ASP.NET page directives go here
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<script type="text/javascript" src="Scripts/jquery-1.4.1.min.js" ></script>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:textbox id="username" runat="server" /><br />
<asp:textbox id="password" runat="server" /><br />
<asp:textbox id="realName" runat="server" /><br />
<asp:button id="Submit" onclick="Submit_Click"
usesubmitbehavior="true" runat="server" />
</div>
</form>
<script type="text/javascript">
$(document).ready(function () {
// Configure to save every 5 seconds
window.setInterval(saveDraft, 5000);
});
// The magic happens here...
function saveDraft() {
$.ajax({
type: "POST",
url: "SaveDraft.aspx",
data: ({
username: $("#<%=username.ClientID %>").val(),
password: $("#<%=password.ClientID %>").val(),
realName: $("#<%=realName.ClientID %>").val()
}),
success: function (response) {
alert('saved draft');
}
});
}
</script>
</body>
</html>
In your SaveDraft.aspx page:
public partial class SaveDraft : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
string username = Request.Form["username"];
string password = Request.Form["password"];
string realName = Request.Form["realName"];
// Save data somewhere at this point
}
}
That should get you started.
Response.Form("username") - VB uses parenthesis (round brackets) instead of square brackets.