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  • asp.net doesn't render Sys.WebForms.PageRequestManager._initialize code

    - by ajitatif
    i'm using the ASP.NET 2.0 Ajax Extensions on a web site. as always, everything is fine on local but the remote web site does not use ajax calls. my local server has the ASP.NET Ajax extensions installed but the remote one doesn't. i know that i should be able to use the Ajax extensions without installing them. so in turn, i added the extensions' .dll among the web site's references but still no luck. after my further investigation, i found out that local and remote pages have exactly the same HTML code rendered, except that the local (working) one has these lines //<![CDATA[ Sys.WebForms.PageRequestManager._initialize('ctl00$ContentPlaceHolder1$ScriptManager1', document.getElementById('aspnetForm')); Sys.WebForms.PageRequestManager.getInstance()._updateControls(['tctl00$ContentPlaceHolder1$updReportArgs','tctl00$ContentPlaceHolder1$updReport'], ['ctl00$ContentPlaceHolder1$chkTumu','ctl00$ContentPlaceHolder1$btnGetir'], [], 90); //]]> obviously, these are the lines of code that make callbacks possible. the question is why doesn't asp.net render these lines? what could be missing? by the way, the ScriptResource.axd and WebResource.axd doesn't give a 404 or anything, i can see through their js codes via Firebug. and one more thing: i'm unsure if it is related or not, but there are client-side asp.net validators on the page whose js code are not rendered either. again, those work fine locally. for further investigation you can see the remote site here : http://www.ajitatif.com/subdomains/nazer/Raporlar/danismanbasarim.aspx

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  • Convert asp.net webforms logic to asp.net MVC

    - by gmcalab
    I had this code in an old asp.net webforms app to take a MemoryStream and pass it as the Response showing a PDF as the response. I am now working with an asp.net MVC application and looking to do this this same thing, but how should I go about showing the MemoryStream as PDF using MVC? Here's my asp.net webforms code: private void ShowPDF(MemoryStream ms) { try { //get byte array of pdf in memory byte[] fileArray = ms.ToArray(); //send file to the user Page.Response.Cache.SetCacheability(HttpCacheability.NoCache); Page.Response.Buffer = true; Response.Clear(); Response.ClearContent(); Response.ClearHeaders(); Response.Charset = string.Empty; Response.ContentType = "application/pdf"; Response.AddHeader("content-length", fileArray.Length.ToString()); Response.AddHeader("Content-Disposition", "attachment;filename=TID.pdf;"); Response.BinaryWrite(fileArray); Response.Flush(); Response.Close(); } catch { // and boom goes the dynamite... } }

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  • Using ExtJS with ASP.NET, Webforms or MVC?

    - by TigrouMeow
    Hello, For a scenario using 0 ASP.NET controls at all but rather an 100% extJS interface, what would be the advantages of using ASP.NET MVC or ASP.NET WebForms? And the disadvantages? Is there a OBVIOUS way to do it properly? I would love to have feedback's on your experiences. Thank you!

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  • "Add Controller" / "Add View" in a hybrid MVC/WebForms ASP.NET application

    - by orip
    I have an existing WebForms project to which I'm adding MVC pages. I created an MVC project and copied the project type guids. It works fine, but I can't get Visual Studio to display the "Add Controller" or "Add View" wizards on my controllers and views directories (they're not /Controllers and /Views, they're in /Foo/Controllers and /Foo/Views). Is it possible to enable the wizards?

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  • Ajax, Callback, postback and Sys.WebForms.PageRequestManager.getInstance().add_beginRequest

    - by user338262
    Hi, I have a user control which encapsulates a NumericUpDownExtender. This UserControl implements the interface ICallbackEventHandler, because I want that when a user changes the value of the textbox associated a custom event to be raised in the server. By the other hand each time an async postback is done I shoe a message of loading and disable the whole screen. This works perfect when something is changed in for example an UpdatePanel through this lines of code: Sys.WebForms.PageRequestManager.getInstance().add_beginRequest( function (sender, args) { var modalPopupBehavior = $find('programmaticSavingLoadingModalPopupBehavior'); modalPopupBehavior.show(); } ); The UserControl is placed inside a detailsview which is inside an UpdatePanel in an aspx. When the custom event is raised I want another textbox in the aspx to change its value. So far, When I click on the UpDownExtender, it goes correctly to the server and raises the custom event, and the new value of the textbox is assigned in the server. but it is not changed in the browser. I suspect that the problem is the callback, since I have the same architecture for a UserControl with an AutoCompleteExtender which implement IPostbackEventHandler and it works. Any clues how can I solve this here to make the UpDownNumericExtender user control to work like the AutComplete one? This is the code of the user control and the parent: using System; using System.Web.UI; using System.ComponentModel; using System.Text; namespace Corp.UserControls { [Themeable(true)] public partial class CustomNumericUpDown : CorpNumericUpDown, ICallbackEventHandler { protected void Page_PreRender(object sender, EventArgs e) { if (!Page.IsPostBack) { currentInstanceNumber = CorpAjaxControlToolkitUserControl.getNextInstanceNumber(); } registerControl(this.HFNumericUpDown.ClientID, currentInstanceNumber); string strCallServer = "NumericUpDownCallServer" + currentInstanceNumber.ToString(); // If this function is not written the callback to get the disponibilidadCliente doesn't work if (!Page.ClientScript.IsClientScriptBlockRegistered("ReceiveServerDataNumericUpDown")) { StringBuilder str = new StringBuilder(); str.Append("function ReceiveServerDataNumericUpDown(arg, context) {}").AppendLine(); Page.ClientScript.RegisterClientScriptBlock(typeof(CorpNumericUpDown), "ReceiveServerDataNumericUpDown", str.ToString(), true); } nudeNumericUpDownExtender.BehaviorID = "NumericUpDownEx" + currentInstanceNumber.ToString(); ClientScriptManager cm = Page.ClientScript; String cbReference = cm.GetCallbackEventReference(this, "arg", "ReceiveServerDataNumericUpDown", ""); String callbackScript = "function " + strCallServer + "(arg, context)" + Environment.NewLine + "{" + Environment.NewLine + cbReference + ";" + Environment.NewLine + "}" + Environment.NewLine; cm.RegisterClientScriptBlock(typeof(CustomNumericUpDown), strCallServer, callbackScript, true); base.Page_PreRender(sender,e); } [System.ComponentModel.Browsable(true)] [System.ComponentModel.Bindable(true)] public Int64 Value { get { return (string.IsNullOrEmpty(HFNumericUpDown.Value) ? Int64.Parse("1") : Int64.Parse(HFNumericUpDown.Value)); } set { HFNumericUpDown.Value = value.ToString(); //txtAutoCompleteCliente_AutoCompleteExtender.ContextKey = value.ToString(); // TODO: Change the text of the textbox } } [System.ComponentModel.Browsable(true)] [System.ComponentModel.Bindable(true)] [Description("The text of the numeric up down")] public string Text { get { return txtNumericUpDown.Text; } set { txtNumericUpDown.Text = value; } } public delegate void NumericUpDownChangedHandler(object sender, NumericUpDownChangedArgs e); public event NumericUpDownChangedHandler numericUpDownEvent; [System.ComponentModel.Browsable(true)] [System.ComponentModel.Bindable(true)] [System.ComponentModel.Description("Raised after the number has been increased or decreased")] protected virtual void OnNumericUpDownEvent(object sender, NumericUpDownChangedArgs e) { if (numericUpDownEvent != null) //check to see if anyone has attached to the event numericUpDownEvent(this, e); } #region ICallbackEventHandler Members public string GetCallbackResult() { return "";//throw new NotImplementedException(); } public void RaiseCallbackEvent(string eventArgument) { NumericUpDownChangedArgs nudca = new NumericUpDownChangedArgs(long.Parse(eventArgument)); OnNumericUpDownEvent(this, nudca); } #endregion } /// <summary> /// Class that adds the prestamoList to the event /// </summary> public class NumericUpDownChangedArgs : System.EventArgs { /// <summary> /// The current selected value. /// </summary> public long Value { get; private set; } public NumericUpDownChangedArgs(long value) { Value = value; } } } using System; using System.Collections.Generic; using System.Text; namespace Corp { /// <summary> /// Summary description for CorpAjaxControlToolkitUserControl /// </summary> public class CorpNumericUpDown : CorpAjaxControlToolkitUserControl { private Int16 _currentInstanceNumber; // This variable hold the instanceNumber assignated at first place. public short currentInstanceNumber { get { return _currentInstanceNumber; } set { _currentInstanceNumber = value; } } protected void Page_PreRender(object sender, EventArgs e) { const string strOnChange = "OnChange"; const string strCallServer = "NumericUpDownCallServer"; StringBuilder str = new StringBuilder(); foreach (KeyValuePair<String, Int16> control in controlsToRegister) { str.Append("function ").Append(strOnChange + control.Value).Append("(sender, eventArgs) ").AppendLine(); str.Append("{").AppendLine(); str.Append(" if (sender) {").AppendLine(); str.Append(" var hfield = document.getElementById('").Append(control.Key).Append("');").AppendLine(); str.Append(" if (hfield.value != eventArgs) {").AppendLine(); str.Append(" hfield.value = eventArgs;").AppendLine(); str.Append(" ").Append(strCallServer + control.Value).Append("(eventArgs, eventArgs);").AppendLine(); str.Append(" }").AppendLine(); str.Append(" }").AppendLine(); str.Append("}").AppendLine(); Page.ClientScript.RegisterClientScriptBlock(typeof(CorpNumericUpDown), Guid.NewGuid().ToString(), str.ToString(), true); } str = new StringBuilder(); foreach (KeyValuePair<String, Int16> control in controlsToRegister) { str.Append(" funcsPageLoad[funcsPageLoad.length] = function() { $find('NumericUpDownEx" + control.Value + "').add_currentChanged(").Append(strOnChange + control.Value).Append(");};").AppendLine(); str.Append(" funcsPageUnLoad[funcsPageUnLoad.length] = function() { $find('NumericUpDownEx" + control.Value + "').remove_currentChanged(").Append(strOnChange + control.Value).Append(");};").AppendLine(); } Page.ClientScript.RegisterClientScriptBlock(typeof(CorpNumericUpDown), Guid.NewGuid().ToString(), str.ToString(), true); } } } and to create the loading view I use this: //The beginRequest event is raised before the processing of an asynchronous postback starts and the postback is sent to the server. You can use this event to call custom script to set a request header or to start an animation that notifies the user that the postback is being processed. Sys.WebForms.PageRequestManager.getInstance().add_beginRequest( function (sender, args) { var modalPopupBehavior = $find('programmaticSavingLoadingModalPopupBehavior'); modalPopupBehavior.show(); } ); //The endRequest event is raised after an asynchronous postback is finished and control has been returned to the browser. You can use this event to provide a notification to users or to log errors. Sys.WebForms.PageRequestManager.getInstance().add_endRequest( function (sender, arg) { var modalPopupBehavior = $find('programmaticSavingLoadingModalPopupBehavior'); modalPopupBehavior.hide(); } ); Thanks in advance! Daniel.

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  • Problem with Ajax [SYS.webforms.pagerequestmanagerserver exception]

    - by Homam
    I'm new in web development, I have a problem in a web application after deployment (it's not appeared in my development machine), The error in IE after enable the debug mode: SYS.webforms.pagerequestmanagerserver error exception has been thrown by the target of an invocation scriptresources.axd The error is shown when an Ajax ModalPopupExtender is opened. Inside the popup there's a user control and inside the user control there's a RadGrid from telerik contains a RadAsyncUpload in a GridTemplateColumn kindly ask me for any extra information Thanks in advance

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  • Sys.WebForms.PageRequestManagerParserErrorException in IE6

    - by Hugo Zapata
    I have a problem with UpdatePanels and IE6. ( Sys.WebForms.PageRequestManagerParserErrorException ) The version of .NET is 2.0. The strange thing is that if i open Fiddler to capture the requests, IE6 starts working ok!.. If i close Fiddler, then IE6 starts to report the problem. The problem is that i can't see the request because when Fiddler is monitoring, the error stops appearing. Any suggestions ? Thanks

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  • Sys.WebForms.PageRequestManagerServerErrorException

    - by vaibhavd
    I am using the asp.net with c# and using the update pannel as well as flash control i am getting the error sometime not all time and no page navigate after then plz help me out following is the massange on the pop up window:- "Sys.WebForms.PageRequestManagerServerErrorException: An unknown error occurred while processing the request on the server. The status code returned from the server was: 0" Please Help me out sence may on the demo time the application may carsh

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  • How to implement a Client-side Ajax Login on Asp.Net MVC (A link to the solution for Asp.Net Webform

    - by Matt
    Hi, I'm trying to implement a client-side ajax login on Asp.Net MVC. I used to have this set up just fine on WebForms, but now that I've moved to MVC it's giving me some troubles. If you'd like a tutorial on Client-side Ajax Login for Asp.Net Webforms, it can be found here -- Easy, A++ Now... for some reason it's not working for Asp.Net MVC. I used the exact same tutorial as for the Webforms, except when it executes the ssa.login() (equivalently: Sys.Services.AuthenticationService.login()) it's not doing anything. I have alerts in both the onLoginComplete() function and the onError() function. As well I have an alert before the ssa.login gets called and right after... function loginHandler() { var username = $("#login_UserName").val(); var password = $("#login_Password").val(); var isPersistent = $("#login_RememberMe").attr("checked"); var customInfo = null; var redirectUrl = null; // Log them in. alert("try login"); ssa.login(username, password, isPersistent, customInfo, redirectUrl, onLoginComplete, onError); alert("made it here"); } The first alert fires but the second one doesn't which means the function is failing. Here's the function I pulled from Asp.Net Ajax to show you: function(c, b, a, h, f, d, e, g) { this._invoke(this._get_path(), "Login", false, { userName: c, password: b, createPersistentCookie: a }, Function.createDelegate(this, this._onLoginComplete), Function.createDelegate(this, this._onLoginFailed), [c, b, a, h, f, d, e, g]); } Anyone have any idea of why it's failing?

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  • First ASP.NET WebForms application completed, should I jump into MVC now?

    - by farhad
    I just finished my first Asp.net intranet application using WebForms, and now I am considering learning MVC. My questions are: I mainly use LINQ for CRUD purposes instead of SQL, should I also learn hard coded SQL or just stick to LINQ EF? Is it a good idea to start learning MVC now and use it on all my future projects or is it too early for me? Do employers favour MVC over WebForms when recruiting junior developers?

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  • ASP.Net WebForms requiredfieldvalidator not working in FireFox?

    - by larryq
    I have a WebForms app that uses a field validator on a dropdownlist. It works in IE but not FireFox. This is pretty straightforward stuff I'm doing. Here are the setups for the dropdown and validator: <asp:DropDownList ID ="dmbFileActNo" runat="server" CssClass="DROPDOWN_MEDIUM" AutoPostBack="True"></asp:DropDownList> <asp:requiredfieldvalidator EnableClientScript="true" id="rfvFileActNo" Display="None" ControlToValidate="dmbFileActNo" Runat="server" InitialValue="-1"></asp:requiredfieldvalidator> I'm running ASP.Net 2.0 on the web server. Javascript is enabled on the FireFox browser-- this problem happens on all FF browsers I've tested, on multiple everyday machines, so I don't believe it's due to a locked down install.

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  • ASP.NET Routing (in WebForms)not working when deployed under IIS,Works in IDE

    - by Shyju
    I have an ASP.NET web application(webforms,not MVC) developed in VS 2008 and i have implemented ASP.NET web forms URL routing by following this link http://www.4guysfromrolla.com/articles/051309-1.aspx#postadlink It works pretty good when i run it on the Visual studion IDE.But does not works when i created a site under my IIS (IIS 5.1 in XP) and deployed the same files there.I have set ASP.NET version as 2.0 in the Properties window of my application too.But does not work. Any idea Why ? Is there anything else to be setup ? Thanks in advance

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  • ASP.NET Ajax Error: Sys.WebForms.PageRequestManagerParserErrorException

    - by Phil Bennett
    My website has been giving me intermittent errors when trying to perform any Ajax activities. The message I get is Sys.WebForms.PageRequestManagerParserErrorException: The message received from the server could not be parsed. Common causes for this error are when the response is modified by calls to Response.Write(), response filters, HttpModules, or server trace is enabled. Details: Error parsing near ' So its obviously some sort of server timeout or the server's just returning back mangled garbage. This generally, unfortunately not always, happens when the site has been idle for a while. Anybody else been able to overcome this? Thanks

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  • How to replicate this screenshot in WebForms?

    - by AngryHacker
    I need to replicate the following in ASP.NET WebForms using a GridView. But I am not sure where to start. Basically I need 3 columns. The checkbox (which sometimes needs to be disabled), and 2 standard text columns. I've gone through the tutorial and I can see how to basically dump text data into a GridView, but not clear on how to implement checkboxes, particularly ones that needs to be disabled once in a while. And I have to replicate the style of the screenshot (e.g. border on the bottom). Having trouble with that as well. How do I swing something like that?

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  • Working with DataBinding and Page_Load in ASP.NET MVP

    - by Joel
    I'm using WebForms MVP to create some simple reporting applications. Most of these applications consist of a few search criteria inputs and a ComponentArt datagrid that I'm populating with data from the database. Most of the markup is in a UserControl, which is in a content page with a master page. My problem is that the control's Page_Load event is firing before the control events that caused the postback in the first place. Basically, the user clicks the search button, and Page_Load is fired BEFORE Search_Click. This is messing with the databinding scheme I've been using. So that's the question: Why is my Page_Load event firing before the event handler, and what can I do about it? I don't THINK this problem is related to WebForms MVP or ComponentArt, but obviously I could be wrong. Thanks.

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  • jscript1.js error in webforms when applying routing

    - by Sean N
    Hello I have a project using webforms. I applied routing on one of the page. My route is structure like this : http://localhost:3576/Request/Admin/Rejected/ = http://localhost:3576/Request/{role}/{action}/{id} Everything works great but i have a javascript error: Webpage error details User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.04506.30; .NET CLR 3.0.04506.648; .NET CLR 3.5.21022; InfoPath.2; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729) Timestamp: Fri, 7 May 2010 13:35:54 UTC Message: Syntax error Line: 3 Char: 1 Code: 0 URI: http://localhost:3576/Request/Admin/Rejected/JScript1.js I think it's trying to route to the file where i stored my javascript functions. Any suggestion?

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  • HTTP POSTed files automatically uploaded to root directory

    - by Baddie
    I just inherited an ASP.NET WebForms web application that I was tasked with refactoring. One of the features is a file upload and while debugging I noticed that as soon as a file is posted to a certain page/handler, it is automatically uploaded to the root directory of the application. The file is then moved to the proper location. I can't seem to figure out whats causing this automatic upload of the file. Is there something I'am overlooking in ASP.NET WebForms that allows this to happen? Is it an IIS configuration or something?

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  • How to access controls collection of dynamically loaded aspx page?

    - by Naasir
    Let's say I have two webforms, A.aspx and B.aspx, where B.aspx contains some simple web controls such as a textbox and a button. I'm trying to do the following: When A.aspx is requested, I want to dynamically call and load B.aspx into memory and output details of all the controls contained in B.aspx. Here is what I tried in the codebehind for A.aspx: var compiledType = BuildManager.GetCompiledType("~/b.aspx"); if (compiledType != null) { var pageB = (Page)Activator.CreateInstance(compiledType); } foreach (var control in pageB.Controls) { //output some details for each control, like it's name and type... } When I try the code above, the controls collection for pageB is always empty. Any ideas on how I can get this to work? Some other important details: both webforms utilize a master page (so the web controls in b.aspx are actually placed within a "content" tag) I've also tried using BuildManager.CreateInstanceFromVirtualPath. No luck.

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  • Registering custom webcontrol inside mvc view?

    - by kastermester
    I am in the middle of a project where I am migrating some code for a website from WebForms to MVC - unfortunatly there's not enough time to do it all at once, so I will have to do some... not so pretty solutions. I am though facing a problems with a custom control I have written that inherits from the standard GridView control namespace Controls { public class MyGridView : GridView { ... } } I have added to the web.config file as usual: <configuration> ... <system.web> ... <pages> ... <controls> ... <add tagPrefix="Xui" namespace="Controls"/> </controls> </pages> </system.web> </configuration> Then on the MVC View: <Xui:MyGridView ID="GridView1" runat="server" ...>...</Xui:MyGgridView> However I am getting a parser error stating that the control cannot be found. I am suspecting this has to do with the mix up of MVC and WebForms, however I am/was under the impression that such mixup should be possible, is there any kind of tweak for this? I realise this solution is far from ideal, however there's no time to "do the right thing". Thanks

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  • Section or group name 'cachingConfiguration' is already defined - but where?

    - by Richard Ev
    On Windows XP I am working on a .NET 3.5 web app that's a combination of WebForms and MVC2 (The WebForms parts are legacy, and being migrated to MVC). When I run this from VS2008 using the ASP.NET web server everything works as expected. However, when I host the app in IIS and try to use it, I see the following error Section or group name 'cachingConfiguration' is already defined. Updates to this may only occur at the configuration level where it is defined. Source Error: Line 24: </sectionGroup> Line 25: <section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler, log4net"/> Line 26: <section name="cachingConfiguration" type="Microsoft.Practices.EnterpriseLibrary.Caching.Configuration.CacheManagerSettings,Microsoft.Practices.EnterpriseLibrary.Caching, Version=4.1.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" /> Line 27: </configSections> Line 28: Sure enough, if I remove the offending line (line 26 in the error message) from my web.config then the app runs correctly. However, I really need to find out where the duplicate definition of this is. It's nowhere in my solution. Where else could it be?

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  • How to get at specific HTML elements of a document using C# and Hide them/Show them etc.

    - by LaserBeak
    Basically I want to load a HTML document and using controls such as multiple check boxes which will be programmed to hide, delete or show HTML elements with certain ID's. So I am thinking I would have to set an inline CSS property for visibility to: false on the ones I want to hide or delete them altogether when necessary. I need this so I don't have to edit my Ebay HTML templates in dreamweaver all the time, where I usually have to scroll around messy code and manually delete or add tags and their respective content. Whereas I just want to create one master template in dreamweaver which has all the variations that my products have, since they are all of the same genre with slight changes here and there and I just need to enable and disable the visibility of these variants as required and copy + paste the final html. I haven's used Windows Forms before, but tried doing this in WebForms which I do know a bit. I am able to get the result that I want by wrapping any HTML elements in a <asp:PlaceHolder></asp:PlaceHolder> and just setting that place holders visibility to false after the associated checkbox is checked and a postback occurs, finally I add a checkbox/button control that removes all the checkboxes, including itself etc for final html. But this method seems just like too much pain in the ass as I have to add the placeholder tags around everything that I need control over as ordinary html elements do not run at server, also webforms injects a bunch of Javascript and ViewState data so I don't have clean HTML which I can just copy after viewing the page source. Any tips/code that you can suggest to achieve the desired effect with the least changes required to existing HTML documents? Ideally I would want to load the HTML document in, have a live design preview of it and underneath have a bunch of well labelled checkboxes programmed to hide, delete or show elements with certain ID's. Thanks...

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