Is there a way to send data to an aspcontrol say a label called label1? Via jquery?
I know jquery only likes html but is there a way to just send the raw text to an asp control using a similar method below:
<script type="text/javascript">
$(function () {
$('button').click(function () {
$(document).ready(function () {
var x = $('textarea').val();
$('textarea').val('');
var label = $("#<%= Label1.ClientID %>");
var newdiv = $("<div></div>").html(x).attr('id', 'test');
$('#test1').append(newdiv);
var serializer = new XMLSerializer();
label.text(serializer.serializeToString(newdiv));
return false;
});
});
});
</script>
I think the bigger issue is asp.net changes the id and trying to get that in the code isn't that easy.
Can you use the name attribute? If so you can just look for the name attribute containing your name using the jquery selector '[ name *="YourName"]'
EDIT: I meant to add firebug is a great help for examining page elements and figuring exactly what you can use (Ex: asp.net adds a name attribute to a button by default) and whats going on (like your return false failing) then tweaking your jquery from the watch window.
Sample asp.net form content:
<p>
<asp:TextBox ID="TextBox1" name="TextBox1" runat="server" Rows="3"></asp:TextBox>
</p>
<p>
<asp:Button ID="Button1" runat="server" Text="Button" /></p>
<p>
<asp:Label ID="Label1" name="Label1" runat="server" Text="Label"></asp:Label>
</p>
<div id="test1"></div>
jquery:
$(function () {
$('[name*= "Button1"]').click(function () {
var x = $('[name*= "TextBox1"]').val();
var newdiv = $("<div></div>").html(x).attr('id', 'test');
$('#test1').append(newdiv);
$('[name*= "Label1"]').text($('#test1').html());
$('[name*= "TextBox1"]').val('');
return false;
});
});
Here's how to do it without jQuery:
<%# Page Inherits="System.Web.UI.Page" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>Test</title>
<script type="text/javascript" src="App_Resources/JavaScript/jquery-1.4.4.min.js"></script>
</head>
<body>
<form runat="server">
<asp:Label ID="testLabel" runat="server" Text="test" />
<script type="text/javascript">
$(document).ready(function ()
{
var label = document.getElementById("<%= testLabel.ClientID %>");
var div = document.createElement("div");
div.innerText = "content";
label.innerText = div.outerHTML;
});
</script>
</form>
</body>
</html>
Related
i do have a linkbutton that do some codebehind on c#.
and i want that, after the codebehind is done, and the result comes back to the page, the scroll moves to a certain div.
<html>
<head>
</head>
<body>
<asp:LinkButton ID="lb1" runat="server" OnClick="lb1_Click"> Click Aqui </asp:LinkButton>
<div id=myDiv> Hi! </div>
</body>
</html>
code behind:
protected void lb1_Click(object sender, EventArgs e)
{
//do something in database
// then back to the page, and scroll to MyDiv
}
This could help you, just change in the javascript the file that have the code and it will output the things in the file called
<script type="text/javascript">
function lb1_Clicks() {
$.ajax({
url: "getInfo.php",//set the file that will do the magic output
success: function(response) {
$('.myDiv').html(response).fadeIn();
}
});
}
</script>
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
</head>
<body>
<asp:LinkButton ID="lb1" runat="server" OnClick="lb1_Click()"> Click Aqui </asp:LinkButton>
<div class="myDiv"><!-- your code will update here || example hello World--></div>
</body>
</html>
<!-- getInfo.php -->
<?PHP
echo "hello world";
?>
I am new to C# and JQuery. I try to add jquery to a C# WebForm project.
What I want to do is this:
Add a button to a webform.
If that button is clicked serverside then display a JQuery dialogbox
This is the code that I have - if I click the button nothing happens.
I wonder where the problem is....
.aspx file:
<%# Page Language="C#" AutoEventWireup="true" CodeBehind="frmMain.aspx.cs" Inherits="Dialog_YES_NO_mit_JQuery.frmMain" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<script src='http://ajax.googleapis.com/ajax/libs/jquery/1.8.0/jquery.min.js' type="text/javascript"></script>
<script type="text/javascript">
function ShowPopup(message) {
$(function () {
$("#dialog").html(message);
$("#dialog").dialog({
title: "jQuery Dialog Popup",
buttons: {
Close: function () {
$(this).dialog('close');
}
},
modal: true
});
});
};
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
Dialogbox using JQuery<br />
<br />
<asp:Button ID="btnDemo1" runat="server" OnClick="btnDemo1_Click" Text="Demo1" />
<br />
</div>
</form>
</body>
</html>
.aspx.cs file :
public partial class frmMain : System.Web.UI.Page
{
protected void btnDemo1_Click(object sender, EventArgs e)
{
string message = "Message from server side";
//ClientScript.RegisterStartupScript (this.GetType(), "Popup", "ShowPopup('" + message + "');", true);
ClientScript.RegisterClientScriptBlock(this.GetType(), "Popup", "ShowPopup('" + message + "');", true);
}
}
}
Here's a complete example that works:
You need to add a reference to jQuery UI library after the reference to jQuery as this is where the dialog logic is defined
You need to add a reference to the jQuery UI CSS file to enable the modal popup styling.
<script src='http://ajax.googleapis.com/ajax/libs/jquery/1.8.0/jquery.min.js' type="text/javascript"></script>
<script src="http://code.jquery.com/ui/1.11.1/jquery-ui.min.js"></script>
<link href="https://cdnjs.cloudflare.com/ajax/libs/jqueryui/1.11.4/jquery-ui.css" rel="stylesheet">
<script type="text/javascript">
function ShowPopup(message) {
$(function () {
$("#dialog").html(message);
$("#dialog").dialog({
title: "jQuery Dialog Popup",
buttons: {
Close: function () {
$(this).dialog('close');
}
},
modal: true
});
});
};
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
Dialogbox using JQuery<br />
<br />
<asp:Button ID="btnDemo1" runat="server" OnClick="btnDemo1_Click" Text="Demo1" />
<br />
<div id="dialog"></div>
</div>
</form>
</body>
Output:
here an example that works for me :
code behind :
protected void ShowDialogClick(object sender, EventArgs e)
{
ScriptManager.RegisterClientScriptBlock(this.Page, this.GetType(), Guid.NewGuid().ToString(), "ShowDialogJS();", true);
}
aspx :
<script type="text/javascript">
function ShowDialogJS() {
jQuery("#dialog").dialog();
}
</script>
<asp:Button runat="server" ID="btnShowDialog" Text="Show Dialog"
OnClick="ShowDialogClick"></asp:Button>
EDIT :
I have two js files for jQuery :
<script src="ressources/jQuery/scripts/jquery-1.11.4.js" type="text/javascript"></script>
<script src="ressources/jQuery/scripts/jquery-ui-1.11.4.js" type="text/javascript"></script>
try this
aspx
`
<form id="form1" runat="server">
<div>
Dialogbox using JQuery<br />
<div id="dialog"></div>
<br />
<asp:Button ID="btnDemo1" runat="server" OnClick="btnDemo1_Click" Text="Demo1" />
<br />
</div>
</form>
`
added
<div id="dialog"></div>
i also added javascirpt files
<script src="http://code.jquery.com/jquery-1.11.1.min.js"></script>
<script src="http://code.jquery.com/ui/1.11.1/jquery-ui.min.js"></script>
I'm using this gauge in my contentplaceholder.
http://www.dariancabot.com/projects/jgauge_wip/
MyControl.ascx:
<link rel="stylesheet" href="Scripts/jgauge.css" type="text/css" />
<script type="text/javascript" src="Scripts/jquery-1.8.0.js"></script>
<script language="javascript" type="text/javascript" src="Scripts/jgauge-0.3.0.a3.js"></script>
<script language="javascript" type="text/javascript" src="Scripts/jQueryRotate.2.2.js"></script>
<script language="javascript" type="text/javascript" src="Scripts/excanvas.min.js"></script>
<div id="<%=this.ClientID%>_ctl" class="jgauge" ></div>
<script type="text/javascript">
$(document).ready(function () {
var isPostBack = <%= Page.IsPostBack ? "true" : "false" %>;
if(isPostBack == "true")
{
Sys.WebForms.PageRequestManager.getInstance().add_endRequest(EndRequestHandler);
prm.add_endRequest(onEndRequest);
}
else{
var <%=this.ClientID%>_ctl;
<%=this.ClientID%>_ctl = new jGauge();
<%=this.ClientID%>_ctl.id = '<%=this.ClientID%>_ctl';
<%=this.ClientID%>_ctl.init();
}
});
function EndRequestHandler(sender, args){
var <%=this.ClientID%>_ctl;
<%=this.ClientID%>_ctl = new jGauge();
<%=this.ClientID%>_ctl.id = '<%=this.ClientID%>_ctl';
<%=this.ClientID%>_ctl.init();
}
</script>
In MyPage.aspx: (Contains dynamically created table having several such controls. putting the generated table on placeholder)
<asp:UpdatePanel ID="up1" runat="server">
<ContentTemplate>
<asp:PlaceHolder id="phMain" runat="server" />
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="myBtn" />
</Triggers>
</asp:UpdatePanel>
<asp:Button ID="myBtn" runat="server" Text="Refresh" />
I have script manager on master page:
<asp:ScriptManager ID="ScriptManager1" runat="server" EnablePartialRendering="true"></asp:ScriptManager>
But after async postback (hitting 'myBtn'), gauge disappears. Please Help. Trying to solve it since couple of days.
I was able to solve this with by going:
$(document).ready(function () {
Sys.WebForms.PageRequestManager.getInstance()
.add_endRequest(<%=this.ClientID%>_ctlEndRequestHandler);
var <%=this.ClientID%>_ctl;
<%=this.ClientID%>_ctl = new jGauge();
<%=this.ClientID%>_ctl.id = '<%=this.ClientID%>_ctl';
<%=this.ClientID%>_ctl.init();
});
function <%=this.ClientID%>_ctlEndRequestHandler(sender, args){
var <%=this.ClientID%>_ctl;
<%=this.ClientID%>_ctl = new jGauge();
<%=this.ClientID%>_ctl.id = '<%=this.ClientID%>_ctl';
<%=this.ClientID%>_ctl.init();
}
The only real difference is that the postback checks are no longer taking place. Your underlying problem is that $(document).ready will not fire on partial postbacks, which means that isPostBack is never actually getting set to true. Because of this, Sys.WebForms.PageRequestManager.getInstance().add_endRequest(EndRequestHandler); was never executing, meaning that your EndRequestHandler never ran.
Edit
The other issue is that naming the method EndRequestHandler is guaranteed to cause problems if you have more than one of the control at the same time. To get around this, I appended <%=this.ClientID%>_ctl to the name of EndRequestHandler to ensure it was unique.
More info:
How do I use a jQuery $(document).ready and an ASP.NET UpdatePanel together?
http://encosia.com/document-ready-and-pageload-are-not-the-same/
I am using jQuery to set some values in hidden fields, which are being set perfectly.
But the problem is hidden fields don't show me the values until I submit the form.
Is there away to get at the values before the form is submitted.
<script language="JavaScript" src="http://j.maxmind.com/app/geoip.js"></script>
<script src="Scripts/jquery-1.4.1.min.js" type="text/javascript"></script>
<script type="text/javascript">
$(document).ready(function () {
$("#hdnCountryCode").val(geoip_country_code());
$("#hdnCountyName").val(geoip_country_name());
$("#hdnCity").val(geoip_city());
$("#hdnRegionCode").val(geoip_region());
$("#hdnRegion").val(geoip_region_name());
$("#hdnLatitude").val(geoip_latitude());
$("#hdnLongitude").val(geoip_longitude());
});
</script>
<body>
<form id="form1" runat="server">
<asp:HiddenField runat="server" ID="hdnCountryCode" />
<asp:HiddenField runat="server" ID="hdnCountyName" />
<asp:HiddenField runat="server" ID="hdnCity" />
<asp:HiddenField runat="server" ID="hdnRegionCode" />
<asp:HiddenField runat="server" ID="hdnRegion" />
<asp:HiddenField runat="server" ID="hdnLatitude" />
<asp:HiddenField runat="server" ID="hdnLongitude" />
<asp:Button runat="server" ID="btnV" Text="s" onclick="btnV_Click" />
<%
Google.Values Send = new Google.Values();
Send.CountryName = hdnCountyName.Value;
Send.CountryCode = hdnCountryCode.Value;
Send.RegionName = hdnRegion.Value;
Send.RegionCode = hdnRegionCode.Value;
Send.City = hdnCity.Value;
Send.Latitude = hdnLatitude.Value;
Send.Longitude = hdnLongitude.Value;
%>
</form>
</body>
With the code above the values of the hidden fields when passing to the properties of my class is giving me "". But when I use button click event same code returns me all the values which i need
To get the values you need to get the rendered id, and this is done like:
$("#<%=hdnCountryCode.ClientID%>").val(geoip_country_code());
You can see this code:
<head>
<title>Test</title>
<script language="JavaScript" src="http://j.maxmind.com/app/geoip.js"></script>
<script language="JavaScript" src="http://code.jquery.com/jquery-1.8.1.min.js"></script>
<script type="text/javascript">
$(document).ready(function () {
var countryCode = geoip_country_code();
var countryName = geoip_country_name();
$('#countryCode').html(countryCode);
$('#countryName').html(countryName);
});
</script>
</head>
<body>
<p>
CountryCode: <span id="countryCode">countryCode</span>
<p>
<p>
CountyName: <span id="countryName">CountyName</span>
<p>
</form>
</body>
</html>
I am working with the C#, ASP.NET framework [very new to this environment]. This is what I want to achieve:
Pass data from jQuery Datepicker textbox to controller
Parse the date, database query from the selected range
Asynchronously, send queried rows back to page to update content
Here is the HTML:
<form id="date" runat="server">
<asp:Label AssociatedControlId="from_date" Text="From:" runat="server" />
<asp:TextBox ID="from_date" Text="" runat="server" />
<asp:Label AssociatedControlId="to_date" Text="To:" runat="server" />
<asp:TextBox ID="to_date" Text="" runat="server" />
</form>
I have this snippet on the client side to handle the change event:
var dates = $('#from_date, #to_date').datepicker({
if ( this.id == "to_date" )
$('#to_date').change();
});
To call in the controller:
protected void to_date_UpdateHandler( object sender, EventArgs e ) {
/* from here, I would query within the ranges in the "from_date"
and "to_date" textboxes */
}
Obviously, this will cause a page refresh, but I want to pass the data along asynchronously. How should I go about achieving this? Thank you.
It's a little unclear from your question which particular jQuery 'datepicker' plugin you are using, so I will proceed to use the jQuery UI date picker for this example.
First off, there are some things you should be aware of when working with jQuery and ASP.NET WebFroms. Specifically, up until very recently, when server controls are rendered, their IDs get mangled by .NET. It is usually a good idea to stick to CSS classes when doing lots of client side scripting, but if you must use IDs, you can select controls like so:
var $toDate = $('input[id$=to_date]');
Secondly, you will need to communicate with the server via WebMethods or by configuring an ASPX page to return XML or JSON. ASP.NET MVC really makes this easy, but it's possible in WebForms and definitely worth your time (I despise UpdatePanels).
Now to some code.
ASPX:
<%# Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>Example ASP.NET/jQuery Datepicker</title>
<link type="text/css" rel="stylesheet" href="http://ajax.microsoft.com/ajax/jquery.ui/1.8.5/themes/redmond/jquery-ui.css" />
<script type="text/javascript" src="http://ajax.microsoft.com/ajax/jquery/jquery-1.4.2.js"></script>
<script type="text/javascript" src=" http://jquery-json.googlecode.com/files/jquery.json-2.3.min.js"></script>
<script type="text/javascript" src="http://ajax.microsoft.com/ajax/jquery.ui/1.8.5/jquery-ui.js"></script>
<script type="text/javascript">
// On DOM ready...
$(function() {
// Cache the date pickers
var $fromPicker = $('.from_date'),
$toPicker = $('.to_date');
// Init the date pickers
$fromPicker.datepicker();
$toPicker.datepicker();
// Handle change event for 'to' date
$toPicker.change(function(e) {
// Get the dates
var fromDate = $fromPicker.datepicker('getDate');
var toDate = $(this).datepicker('getDate')
// prepare the data to be passed via JSON
var dates = {
fromDate: fromDate,
toDate: toDate
};
// Call the web method
$.ajax({
type: 'POST',
url: 'Default.aspx/GetDate',
data: $.toJSON(dates),
contentType: 'application/json; charset=utf-8',
dataType: 'json',
success: function(msg) {
alert(msg.d);
}
});
});
// Log errors
$(".log").ajaxError(function() {
$(this).text("Error in ajax call.");
});
});
</script>
</head>
<body>
<form id="form1" runat="server">
<asp:ScriptManager ID="ScriptManager" EnablePageMethods="true" runat="server">
</asp:ScriptManager>
<asp:Label ID="from_date_lbl" AssociatedControlID="from_date" Text="From:" runat="server" />
<asp:TextBox ID="from_date" CssClass="from_date" Text="" runat="server" />
<asp:Label ID="to_date_lbl" AssociatedControlID="to_date" Text="To:" runat="server" />
<asp:TextBox ID="to_date" CssClass="to_date" Text="" runat="server" />
<asp:Label ID="log_lbl" CssClass="log" runat="server" />
</form>
</body>
</html>
ASPX.CS
using System;
using System.Web.Services;
public partial class _Default : System.Web.UI.Page
{
[WebMethod]
public static string GetDate(string fromDate, string toDate)
{
DateTime dtFromDate;
DateTime dtToDate;
// Try to parse the dates
if (DateTime.TryParse(fromDate, out dtFromDate) &&
DateTime.TryParse(toDate, out dtToDate))
{
// Perform calculation and/or database query
return "success!";
}
return null;
}
}