Develop Reference

Controller action called twice from Ajax post

It's been hours I'm searching for a solution.
I'm developing a C# and ASP.NET application using MVC.
It's a direct mail management application. I have a page that searches for duplicates in the companies database, then displays it in a list.
Then, when the user clicks on the company name, he lands on a page that displays the duplicates for this company.
To do so, on the search page I made an Ajax request to my controller action "Fiche", which will use the parameters sent to build the request and return the viewmodel filled with the company's duplicates.
The action is called once, with the right parameters, but then, it's called twice, with parameters set to false for the booleans and null for the string. So, I don't manage to retrieve the duplicates for the company.
Here is my click event :
$(a).click(function () {
//some code that sets the variables used in cc
var cc = {
rsoc: raison_sociale,
adr1: adresse,
cp: code_postal,
ville: ville_entreprise,
tel: telephone,
mail: e_mail,
user_id: code_cotisant,
profileConf: sessionStorage.getItem('categ')
}
$.ajax({
url: "#Url.Action("Fiche", "Doublons")",
type: "POST",
contentType: "application/json",
data: JSON.stringify({ cc: cc, rsoc: $(this).text() }),
success: function(response) {
response ? alert("It worked!") : alert("It didn't work.");
}
});
})
Here is my controller action :
public ActionResult Fiche(CompareConfiguration cc, string rsoc)
{
bool categorie = cc.profileConf != null ? true : false;
Models.Entreprise entreprise = new Models.Entreprise();
DataTable dt_doublons = new DataTable();
if (rsoc != null)
{
dt_doublons = entreprise.search_doublons(cc.Rsoc, cc.Adr1, cc.CP, cc.Ville, cc.Tel, cc.Mail, cc.User_Id, categorie, cc.profileConf.Split(','));
for (int i = 0; i < dt_doublons.Rows.Count; i++)
{
if(rsoc != dt_doublons.Rows[i]["rsoc"].ToString())
{
dt_doublons.Rows[i].Delete();
}
}
dt_doublons.AcceptChanges();
}
return View(getDoublons(dt_doublons));
}
private DoublonsViewModel getDoublons(DataTable dt_doublons)
{
DoublonsViewModel dblVM = new DoublonsViewModel()
{
ListeDoublons = new List<EntrepriseAndContacts>(),
dt_doublons = dt_doublons
};
for (int i = 0; i < dt_doublons.Rows.Count; i++)
{
EntrepriseAndContacts eac = new EntrepriseAndContacts();
eac.Id = Convert.ToInt32(dt_doublons.Rows[i]["id_entreprise"]);
eac.Rsoc = dt_doublons.Rows[i]["rsoc"].ToString();
eac.nb_doublons = Convert.ToInt32(dt_doublons.Rows[i]["nb_doublons"]);
eac.Etat_entreprise = Convert.ToInt32(dt_doublons.Rows[i]["importee"]);
eac.Etat_contact = Convert.ToInt32(dt_doublons.Rows[i]["importe"]);
eac.User_id = dt_doublons.Rows[i]["user_id"].ToString();
eac.CVI = dt_doublons.Rows[i]["cvi"].ToString();
eac.Nom = dt_doublons.Rows[i]["nom"].ToString();
eac.Prenom = dt_doublons.Rows[i]["prenom"].ToString();
eac.Mail = dt_doublons.Rows[i]["mail"].ToString();
dblVM.ListeDoublons.Add(eac);
}
return dblVM;
}
And the link :
foreach (var doublon in Model.ListeDoublons)
{
<tr>
<td class="center size-15 height-25">
#doublon.Rsoc
</td>
<td class="center size-15 height-25">#doublon.nb_doublons</td>
</tr>
}
I tried to return false or to preventDefault on the click event but the view "Fiche" wasn't loaded anymore so it's not a solution in this case. I must be doing something wrong !
Edit : I've added [HttpPost] before my action but now the view isn't found.

Hope this time I can post an answer because I found a solution to my problem.
I removed the [HttpPost] before the action Fiche and while passing in the method for the first time, I stored the parameters cc and rsoc in two session variables. Then, I reassign it to cc and rsoc, so when it passes in the method for the second time with cc and rsoc empty, it retrieves them by the session. It's not a nice solution but I've got no time left and it works.
public ActionResult Fiche(CompareConfiguration cc, string rsoc)
{
if(cc.Adr1 != false || cc.Rsoc != false || cc.CP != false || cc.Ville != false || cc.Tel != false || cc.Mail != false || cc.User_Id != false)
{
Session["cc"] = cc;
Session["rsoc_entreprise"] = rsoc;
}
cc = (CompareConfiguration)Session["cc"];
rsoc = Session["rsoc_entreprise"].ToString();
bool categorie = cc.profileConf != null ? true : false;
Models.Entreprise entreprise = new Models.Entreprise();
DataTable dt_doublons = new DataTable();
if (rsoc != null)
{
dt_doublons = entreprise.search_doublons(cc.Rsoc, cc.Adr1, cc.CP, cc.Ville, cc.Tel, cc.Mail, cc.User_Id, categorie, cc.profileConf.Split(','));
for (int i = 0; i < dt_doublons.Rows.Count; i++)
{
if(rsoc != dt_doublons.Rows[i]["rsoc"].ToString())
{
dt_doublons.Rows[i].Delete();
}
}
dt_doublons.AcceptChanges();
}
return View(getDoublons(dt_doublons));
}

implementing Invisible Google reCaptcha for asp.net application ?

This is my ASP.NET form. I want to add invisible recaptcha to it with server side validation. Can someone please help?
I can do client side validation but it doesnt use secret key. My another questions is Do we need secret key for invisible recaptcha?
Please see serverside code that i used for google recaptcha but it is not working for Invisible recaptcha. I am getting this error : -
reCAPTCHA Error: missing-input-response: Not Valid Recaptcha
<div id="ContactFormDiv" runat="server">
<div class="form-row form-required">
<asp:Label ID="YourNameLabel" runat="server" AssociatedControlID="YourNameTextBox"> Your Name:</asp:Label>
<asp:TextBox ID="YourNameTextBox" runat="server" CssClass="form300" MaxLength="150"></asp:TextBox>
</div>
<div class="form-row form-required">
<div id='recaptcha' class="g-recaptcha"
data-sitekey="site key"
data-callback="onSubmit"
data-size="invisible">
</div>
</div>
<div class="form-row-buttons">
<asp:Button ID="SendMessageButton" ClientIDMode="Static" runat="server" Text="Send Message" CssClass="buttonPositive"
CausesValidation="True" OnClick="SendMessageButton_Click" />
</div>
</div>
Javascript Code
<script type="text/javascript" src="https://www.google.com/recaptcha/api.js" async defer></script>
Serverside Code
public class MyObject
{
public string success { get; set; }
}
public static string ReCaptcha_Key = "------------------Site Key-----------------";
public static string ReCaptcha_Secret = "--------------Secret Key ---------------";
public bool ValidateReCaptcha()
{
bool Valid = false;
//start building recaptch api call
var sb = new StringBuilder();
//Getting Response String Append to Post Method
string Response = Request["g-recaptcha-response"];
string url = "https://www.google.com/recaptcha/api/siteverify?secret=" + ReCaptcha_Secret + "&response=" + Response;
sb.Append(url);
//make the api call and determine validity
using (var client = new WebClient())
{
var uri = sb.ToString();
var json = client.DownloadString(uri);
var serializer = new DataContractJsonSerializer(typeof(RecaptchaApiResponse));
var ms = new MemoryStream(Encoding.Unicode.GetBytes(json));
var result = serializer.ReadObject(ms) as RecaptchaApiResponse;
//--- Check if we are able to call api or not.
if (result == null)
{
lblmsg.Text = "Captcha was unable to make the api call";
}
else // If Yes
{
//api call contains errors
if (result.ErrorCodes != null)
{
if (result.ErrorCodes.Count > 0)
{
foreach (var error in result.ErrorCodes)
{
lblmsg.Text = "reCAPTCHA Error: " + error;
}
}
}
else //api does not contain errors
{
if (!result.Success) //captcha was unsuccessful for some reason
{
lblmsg.Text = "Captcha did not pass, please try again.";
}
else //---- If successfully verified. Do your rest of logic.
{
lblmsg.Text = "Captcha cleared ";
Valid = true;
}
}
}
}
return Valid;
}
public bool temp = true;
protected void SendMessageButton_Click(object sender, EventArgs e)
{
temp = ValidateReCaptcha();
if (temp == false)
{
lblmsg.Text = "Not Valid Recaptcha";
lblmsg.ForeColor = System.Drawing.Color.Red;
}
else
{
lblmsg.Text = "Successful";
lblmsg.ForeColor = System.Drawing.Color.Green;
}
Page.Validate();
if (this.Page.IsValid == true && temp == true)
{ //Page and invisible recaptcha is valid }
}
I am getting this error : -
reCAPTCHA Error: missing-input-response: Not Valid Recaptcha

This is how I implemented the working sample:
-- Client Side (Refer to Google Documentation )
<head>
<!-- Google Invisible Captcha -->
<script src='https://www.google.com/recaptcha/api.js'/>
<script>
function onSubmit(token) {
document.getElementById("htmlForm").submit();
}
</script>
</head>
<body>
<form id="htmlForm" action="Default.aspx" method="post">
<input name="txtName" />
<input name="txtEmailAddress" />
<button class="g-recaptcha btn btn-default"
data-sitekey="-------------------Site key--------------"
data-callback="onSubmit">
Submit Request
</button>
</form>
</body>
-- Server Side (keeps secret Key)
public static bool IsValidCaptcha()
{
var secret = "--------------Secret Key ---------------";
var req =
(HttpWebRequest)
WebRequest.Create("https://www.google.com/recaptcha/api/siteverify?secret=" + secret + "&response=" + HttpContext.Current.Request.Form["g-recaptcha-response"]);
using (var wResponse = req.GetResponse())
{
using (StreamReader readStream = new StreamReader(wResponse.GetResponseStream()))
{
string responseFromServer = readStream.ReadToEnd();
if (!responseFromServer.Contains("\"success\": false"))
return true;
}
}
return false;
}

I also have similar problem and it looks like it is harder to find any decent example. However, I saw that you have set
data-callback="onSubmit"
but I didn't see where you have defined that method. Is it there? Could that be what are you missing?

How can I scan a document using ASP.net MVC 5 with the help of Twain

Please help me out by sharing the step by step procedure to achieve the scanning functionality using Twain in ASP.Net MVC5. Thank you

Solution is here:
In ASP.Net/Core Project you send message to call winform project:
var start = function () {
var i = 0;
var wsImpl = window.WebSocket || window.MozWebSocket;
window.ws = new wsImpl('ws://localhost:8181/');
ws.onmessage = function (e) {
$('#submit').hide();
$('#scanBtn').hide();
$('.loader').show();
if (typeof e.data === "string") {
//IF Received Data is String
}
else if (e.data instanceof ArrayBuffer) {
//IF Received Data is ArrayBuffer
}
else if (e.data instanceof Blob) {
i++;
var f = e.data;
f.name = "File" + i;
storedFiles.push(f);
formdata.append(f.name, f);
var reader = new FileReader();
reader.onload = function (e) {
var html = "<div class=\"col-sm-2 text-center\"
style=\"border: 1px solid black; margin-left: 2px;\"><img
height=\"200px\" width=\"200px\" src=\"" + e.target.result + "\"
data-file='" + f.name + "' class='selFile' title='Click to
remove'><br/>" + i + "</div>";
selDiv.append(html);
$('#submit').show();
$('#scanBtn').show();
$('.loader').hide();
}
reader.readAsDataURL(f);
}
};
ws.onopen = function () {
//Do whatever u want when connected succesfully
};
ws.onclose = function () {
$('.dalert').modal('show');
};
}
window.onload = start;
function scanImage() {
ws.send("1100");
};
https://javascript.info/websocket
In Winforms Project you scan document and send graphic data back to Asp.Net/Core project:
public partial class Form1 : Form
{
ImageCodecInfo _tiffCodecInfo;
TwainSession _twain;
bool _stopScan;
bool _loadingCaps;
List allSockets;
WebSocketServer server;
public Form1()
{
InitializeComponent();
if (NTwain.PlatformInfo.Current.IsApp64Bit)
{
Text = Text + " (64bit)";
}
else
{
Text = Text + " (32bit)";
}
foreach (var enc in ImageCodecInfo.GetImageEncoders())
{
if (enc.MimeType == "image/tiff") { _tiffCodecInfo = enc; break; }
}
this.WindowState = FormWindowState.Minimized;
this.ShowInTaskbar = false;
allSockets = new List<IWebSocketConnection>();
server = new WebSocketServer("ws://0.0.0.0:8181");
server.Start(socket =>
{
socket.OnOpen = () =>
{
Console.WriteLine("Open!");
allSockets.Add(socket);
};
socket.OnClose = () =>
{
Console.WriteLine("Close!");
allSockets.Remove(socket);
};
socket.OnMessage = message =>
{
if (message == "1100")
{
this.Invoke(new Action(()=> {
this.WindowState = FormWindowState.Normal;
}));
}
};
});
}
Link to project.
https://github.com/mgriit/ScanAppForWeb
You can remake this project, as you want.

At this moment, none of the browsers support scanning out of the box. You need to use a third-party library (not part of Microsoft's .NET core components). Below example uses Scanner.js, which is a product offered by our company:
Enable Scanning from TWAIN Scanners to ASP.NET Pages: Step by Step
Below steps use Scanner.js as example; they may differ for other products.
1) Include the scanning library in your HTML code:
<script type="text/javascript" src="//asprise.azureedge.net/scannerjs/scanner.js"></script>
2) Add a button to trigger the scanning process:
function scanToJpg() {
scanner.scan(displayImagesOnPage,
{
"twain_cap_setting" : {
"ICAP_PIXELTYPE" : "TWPT_RGB", // Color
"ICAP_XRESOLUTION" : "100", // DPI: 100
"ICAP_YRESOLUTION" : "100",
"ICAP_SUPPORTEDSIZES" : "TWSS_USLETTER" // Paper size: TWSS_USLETTER, TWSS_A4, ...
},
"output_settings" :
[
{
"type" : "return-base64",
"format" : "jpg"
}
]
}
);
}
3) Handle the scan result - display, upload, etc.
Below code creates an img element for each image scanned to display on the current web page:
/** Processes the scan result */
function displayImagesOnPage(successful, mesg, response) {
var scannedImages = scanner.getScannedImage(response, true, false); // returns an array of ScannedImage
for(var i = 0; (scannedImages instanceof Array) && i < scannedImages.length; i++) {
var scannedImage = scannedImages[i];
processScannedImage(scannedImage);
}
}
/** Images scanned so far. */
var imagesScanned = [];
/** Processes a ScannedImage */
function processScannedImage(scannedImage) {
imagesScanned.push(scannedImage);
var elementImg = createDomElementFromModel( {
'name': 'img',
'attributes': {
'class': 'scanned',
'src': scannedImage.src
}
});
document.getElementById('images').appendChild(elementImg);
}
For examples of scanning into PDF formats and direct uploading, please visit the code repository: https://github.com/Asprise/scannerjs.javascript-scanner-access-in-browsers-chrome-ie.scanner.js

Add code in page base to header C#

I have the following code in my MasterPageBase.cs file:
protected override void OnLoad(EventArgs e)
{
string url = Request.Path;
var page = _ContentPageRepository.GetContentPageByUrl(url, ConfigurationManager.GetSiteID());
if (page != null)
{
PageBase.SetTitle(page.Title);
PageBase.SetDescription(page.Description);
PageBase.SetKeywords(page.Keywords);
}
else
{
this.ProcessSiteMap();
}
this.AddGACode();
base.OnLoad(e);
}
I need this.AddGACode(); to get added to the head section of the page, but when I view the source of the page as I am running the solution, I see that this is adding it to the body section of the page.
I have tried Page.Header.Controls.Add(AddGACode()); and get the following errors:
The best overloaded method match has some invalid arguments and cannot convert from 'void' to 'System.Web.UI.Control'
What can I do to get this code added to the head? TIA
EDIT: Request to see the AddGACode method:
private void AddGACode()
{
var gaCode = SiteManager.GetSite().GoogleAnalyticsCode;
if (!String.IsNullOrEmpty(gaCode) && Response.StatusCode == 200)
{
if (!ConfigurationManager.EnableUniversalGATracking)
{
ClientScriptManager cs = Page.ClientScript;
StringBuilder csText = new StringBuilder();
csText.Append("<script type=\"text/javascript\">");
csText.Append(String.Format("var _gaq = _gaq || []; _gaq.push(['_setAccount', '{0}']); ", gaCode));
csText.Append("_gaq.push(['_trackPageview']); (function() { var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true; ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s); })();");
csText.Append("</script>");
cs.RegisterClientScriptBlock(GetType(), "GACode", csText.ToString());
}
else
{
ClientScriptManager cs = Page.ClientScript;
StringBuilder csText = new StringBuilder();
csText.Append("<!-- Universal GA Code --><script type=\"text/javascript\">");
csText.Append(String.Concat("(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){ (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o), m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m) })(window,document,'script','//www.google-analytics.com/analytics.js','ga'); ga('create', '", gaCode, " ', 'auto'); ga('send', 'pageview');"));
csText.Append("</script>");
cs.RegisterClientScriptBlock(GetType(), "GACode", csText.ToString());
}
}
}
EDIT:
This code is in the AddGACode method. There is still this.AddGACode(); in the OnLoad of the page that seems to duplicate the code with this edit, but both codes will disappear if I delete this.AddGACode(); from OnLoad
ClientScriptManager cs = Page.ClientScript;
StringBuilder csText = new StringBuilder();
csText.Append("<!-- Universal GA Code --><script type=\"text/javascript\">");
csText.Append(String.Concat("(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){ (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o), m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m) })(window,document,'script','//www.google-analytics.com/analytics.js','ga'); ga('create', '", gaCode, " ', 'auto'); ga('send', 'pageview');"));
csText.Append("</script>");
cs.RegisterClientScriptBlock(GetType(), "GACode", csText.ToString());
LiteralControl lc = new LiteralControl(csText.ToString());
Page.Header.Controls.Add(lc);

This adds the script into the head tag:
LiteralControl lt = new LiteralControl("<script type='text/javascript'>alert('test');</script>");
Header.Controls.Add(lt);
UPDATE
LiteralControl lt = new LiteralControl(AddGACode());
Header.Controls.Add(lt);
...
private string AddGACode()
{
var result = string.Empty;
var gaCode = SiteManager.GetSite().GoogleAnalyticsCode;
if (!String.IsNullOrEmpty(gaCode) && Response.StatusCode == 200)
{
StringBuilder csText = new StringBuilder();
csText.Append("<script type=\"text/javascript\">");
if (!ConfigurationManager.EnableUniversalGATracking)
{
csText.Append(String.Format("var _gaq = _gaq || []; _gaq.push(['_setAccount', '{0}']); ", gaCode));
csText.Append("_gaq.push(['_trackPageview']); (function() { var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true; ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s); })();");
}
else
{
csText.Append(String.Concat("(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){ (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o), m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m) })(window,document,'script','//www.google-analytics.com/analytics.js','ga'); ga('create', '", gaCode, " ', 'auto'); ga('send', 'pageview');"));
}
csText.Append("</script>");
result = csText.ToString();
}
return result;
}

I'd keep your markup, in this instance your ga scripts, on mastpage itself. In the head tag add two literals, gaGaq and gaUniversal an then use you logic to contol the visibility of them.
<head runat="server"><script type="text\javascript">
<asp:Literal id="gaGaq" runat="server">
<!-- Put you gaq code here-->
<!-- Keep {0} as a place holder for gaqCode -->
</script>
</asp:Literal>
<asp:Literal id="gaUniveral" runat="server">
<script type="text\javascrtip">
<!-- Put you universal code here-->
<!-- Keep {0} as a place holder for gaqCode -->
</script>
</asp:Literal>
</head>
C#
private void AddGACode()
{
var gaCode = SiteManager.GetSite().GoogleAnalyticsCode;
if (!String.IsNullOrEmpty(gaCode) && Response.StatusCode == 200)
{
if(ConfigurationManager.EnableUniversalGATracking)
{
//Set gaCode
gaUniversal.Text = string.Fomat(gaUniveral.Text, gaCode);
}
else
{
//Set gaCode
gaGaq.Text = string.Format(ga.Text, gaCode);
}
gaUniversal.Visible = ConfigurationManager.EnableUniversalGATracking;
gaGaq.Visible = !ConfigurationManager.EnableUniversalGATracking;
}
else
{
//Hide Both literals if no gaCode
gaUniversal.Visible = gaGaq.Visible = false;
}
}
You could also look at putting all this into a custom control. If you're interested in taking that route I wrote a blog article on exactly that for the gaq style google analytics so I could drop it onto my many asp.net websites. The code in that article owuld need to be modified to suite your needs but should be enough to get you stared.

ASP.NET NumericUpDownExtender with button hold support?

Hi I am trying to get an "UpDown" button which allows the user to hold the increment/decrement button to quickly and easily increment/decrement a decimal value. I have been trying this using the ajaxToolkit:NumericUpDownExtender but this seems to only allow increment/decrement with button clicks. This is rather clunky since the value is a percentage. Any ideas of a better way to handle this within ASP.NET?

I was able to make this pretty simply with javascript using a timer.
Here is the ASPX part of it:
<asp:TextBox ID="Factor" runat="server" MaxLength="6" Width="60"/>
<input id ="UpButton" value="▲" type="button" onmousedown="timerID = setInterval(function(){FactUp()},100);" onmouseup="clearInterval(timerID);"/>
<input id ="DownButton" value="▼" type="button" onmousedown="timerID = setInterval(function(){FactDown()},100);" onmouseup="clearInterval(timerID);"/>
And the javascript:
var timerID = 0;
function FactDown() {
var obj = document.getElementById('Factor');
var num = parseFloat(obj.value)
if (isNaN(num)) {
return;
}
num -=0.01;
obj.value = num.toFixed(2);
}
function FactUp() {
var obj = document.getElementById('Factor');
var num = parseFloat(obj.value);
if (isNaN(num)) {
return;
}
num += 0.01;
obj.value = num.toFixed(2);
}

Add reference on this script to ScriptManager control's Script collection:
Sys.Extended.UI.NumericUpDownBehavior.prototype._clearClickInterval = function () {
if (this._clickInterval != null) {
window.clearInterval(this._clickInterval);
this._clickInterval = null;
}
};
Sys.Extended.UI.NumericUpDownBehavior.prototype._setDownClickInterval = function () {
this._clearClickInterval();
this._clickInterval = window.setInterval(this._clickDownHandler, 200);
};
Sys.Extended.UI.NumericUpDownBehavior.prototype._setUpClickInterval = function () {
this._clearClickInterval();
this._clickInterval = window.setInterval(this._clickUpHandler, 200);
};
Sys.Extended.UI.NumericUpDownBehavior.prototype.addIntervalHandlers = function () {
this._clickInterval = null;
this._buttonMouseUpHandler = Function.createDelegate(this, this._clearClickInterval);
if (this._bUp) {
this._upButtonMouseDownHandler = Function.createDelegate(this, this._setUpClickInterval);
$addHandler(this._bUp, 'mousedown', this._upButtonMouseDownHandler);
$addHandler(window, 'mouseup', this._buttonMouseUpHandler);
}
if (this._bDown) {
this._downButtonMouseDownHandler = Function.createDelegate(this, this._setDownClickInterval);
$addHandler(this._bDown, 'mousedown', this._downButtonMouseDownHandler);
$addHandler(window, 'mouseup', this._buttonMouseUpHandler);
}
};
var legacyInitialize = Sys.Extended.UI.NumericUpDownBehavior.prototype.initialize,
legacyDispose = Sys.Extended.UI.NumericUpDownBehavior.prototype.dispose;
Sys.Extended.UI.NumericUpDownBehavior.prototype.initialize = function () {
legacyInitialize.apply(this);
this.addIntervalHandlers();
};
Sys.Extended.UI.NumericUpDownBehavior.prototype.dispose = function () {
legacyDispose.apply(this);
this._clearClickInterval();
if (this._upButtonMouseDownHandler) {
$removeHandler(this._bUp, 'mousedown', this._upButtonMouseDownHandler);
$removeHandler(window, 'mouseup', this._buttonMouseUpHandler);
this._upButtonMouseDownHandler = null;
}
if (this._downButtonMouseDownHandler) {
$removeHandler(this._bDown, 'mousedown', this._downButtonMouseDownHandler);
$removeHandler(window, 'mouseup', this._buttonMouseUpHandler);
this._downButtonMouseDownHandler = null;
}
this._buttonMouseUpHandler = null;
};
Not sure, but might be required to call addIntervalHandlers() function expicitely on an extender instance.
You can check this script if you'll add at the end this line: $find("ctl00_SampleContent_NumericUpDownExtender4").addIntervalHandlers() and execute it from browser's console on this page: NumericUpDown Demonstration The last extender will handle mouse button hold.