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  • Autoclick security for a like button

    - by Ali Davut
    Hi everyone I want to develop a button like 'facebook like button'. I am going to use it on my website and thinking it to share as iframe like facebook but I cannot think its securty because someone can develop a script that can click on it automatically. I thought a solution using sessions but I couldn't make an algorithm completely. How can I disallow autoclicks and which solution is the best? It can be any language I just want algorithm. Thanks, have a nice day.

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  • Response.Redirect exception

    - by Tedd Hansen
    Executing the line: Response.Redirect("Whateva.aspx", true); Results in: A first chance exception of type 'System.Threading.ThreadAbortException' occurred in mscorlib.dll An exception of type 'System.Threading.ThreadAbortException' occurred in mscorlib.dll but was not handled in user code The exception is because of the "true" part, telling it to end the current request immediately. Is this how it should be? If we consider: Exceptions are generally considered heavy, and many times the reason for ending the request early is to avoid processing the rest of the page. Exceptions show up in performance monitoring, so monitoring the solution will show a false number of exceptions. Is there an alternative way to achieve the same?

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  • How messages flows between computers connected with Internet or LAN ?

    - by Praveen
    Hi All, I have been doing Windows programming in .Net since last two years. Now I am shifting to web programming so I just stuck in understanding the fundamentals of web programming, after googling I came to StackOverflow to learn from all of you great guys. My confusion is about how messages flow between systems in distributed enviornment ? I mean suppose I want to send a message "Hello" to a system connected to LAN or Internet, then what will be the steps taken to send the message. Second thing is suppose my system is "A" and I wana send message to system "B" which is connected via a wire, so how the message flows on wire and how system "B" reads it from the wire ? Please someone explain me in a layman terms. Thank you all in advance.

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  • How can I create an http response from scratch?

    - by ispiro
    I have code that returns an http response, but it also includes the content of the page. How can I create a response from scratch so it won't include anything except what I put in it? My code now: GCheckout.AutoGen.NotificationAcknowledgment response = new GCheckout.AutoGen.NotificationAcknowledgment(); response.serialnumber = serialNumber; HttpContext.Current.Response.Clear(); HttpContext.Current.Response.BinaryWrite(GCheckout.Util.EncodeHelper.Serialize(response)); HttpContext.Current.Response.StatusCode = 200;

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  • I seem to have found a major flaw with MSDN Help???

    - by aperture8
    It seems MSDN Help sometimes does not tell you a memeber of a class (which can be a property or a method) is overloaded. For example DetailsViewInsertEventArgs.Values property link text. It says it's a ReadOnly property which is wrong! In fact one of the overloaded Values property is ReadOnly but another one can be used to set some values! So by reading MSDN you have no way to know you can set some values with this property! That's a shame! What's your opinion? I'm only a beginner.

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  • SkinId and Dynamic Control

    - by Alex
    Hi! I have some control that I add dynamically to my page: public partial class _Default : Page { protected override void CreateChildControls() { base.CreateChildControls(); var testControl = new TestControl { SkinID = "TestSkin" }; Controls.Add(testControl); } } I have the following skin file for this control: <cc:TestControl runat="server" SkinID="TestSkin" TestProperty="LALALA" /> But TestProperty is null (if control is static all works): public class TestControl : LinkButton { public string TestProperty { get; set; } protected override void OnPreRender(EventArgs e) { if (String.IsNullOrEmpty(TestProperty)) { throw new ArgumentNullException("TestProperty"); } } } Any ideas about how to fix it?

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  • How can i find which anchor has been clicked for download in destination page with out using query string

    - by Dorababu
    I am having a web form initially which have href as follows <a href="downloadInfo.aspx">ACH File Management System Trail(msi)</a> <a href="downloadInfo.aspx">ACH File Management System Trail(zip)</a> These are my two anchor tags when i click on this i will redirect both to a same page where user has to fill details and a mail will be send to the user for the given mail id. When the user clicks on mail i would like to have the download for which he opted to download. If msi means i would like to prompt msi file to be downloaded and if zip it should be downloaded I need this to be worked with out using query-string

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  • Beginner MVC question - Correct approach to render out a List and details?

    - by fizzer
    I'm trying to set up a page where I display a list of items and the details of the selected item. I have it working but wonder whether I have followed the correct approach. I'll use customers as an example I have set the aspx page to inherit from an IEnumerable of Customers. This seems to be the standard approach to display the list of items. For the Details I have added a Customer user control which inherits from customer. I think i'm on the right track so far but I was a bit confused as to where I should store the id of the customer whose details I intend to display. I wanted to make the id optional in the controller action so that the page could be hit using "/customers" or "customers/1" so I made the arg optional and stored the id in the ViewData like this: public ActionResult Customers(string id = "0") { Models.DBContext db = new Models.DBContext(); var cList = db.Customers.OrderByDescending(c => c.CustomerNumber); if (id == "0") { ViewData["CustomerNumber"] = cList.First().CustomerNumber.ToString(); } else { ViewData["CustomerNumber"] = id; } return View("Customers", cList); } I then rendered the User control using RenderPartial in the front end: <%var CustomerList = from x in Model where x.CustomerNumber == Convert.ToInt32(ViewData["CustomerNumber"]) select x; Customer c = (Customer)CustomerList.First(); %> <% Html.RenderPartial("Customer",c); %> Then I just have an actionLink on each listed item: <%: Html.ActionLink("Select", "Customers", new { id = item.CustomerNumber })% It all seems to work but as MVC is new to me I would just be interested in others thoughts on whether this is a good approach?

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  • How can i create a ModalPopupExtender control dynamically from a server control?

    - by Colour Blend
    I have a composite server control that does quiet a number of things; one of which is to display a ModalPopup OnClick of a dynamically generated HtmlAnchor control. I need to create this ModalPopupExtender control dynamically in my server control and trigger it from within. I have been able to create it and trigger it from a button created at design time but not at runtime. This is as a result of the ID assign to the link is always not found by the ModalPopupExtender control. I have tried assigning a static ID but no success. Can anyone help?

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  • Error handling in controllers with MVC

    - by twrn
    Does it make sense to do error handling and logging inside actions methods or handle the OnException method inside the controllers. One way means writing try/catches in all the action methods even when there is nothing to be done to recover from the error. Handling this at the controller level would allow logging and redirection to an error handler page without writing try/catches inside all the action methods. Which method makes the most sense? Here is example code of try/catches in an action method. [HttpPost] public ActionResult Delete(int id) { using (new Tracer("Project Controller")) { try { Logger.Write("Deleting project"); projService.DeleteProject(id); TempData["message"] = "Project Deleted successfully"; } catch (System.Exception ex) { HandleException(ex, "Project could not be deleted."); } return RedirectToAction("List"); } }

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  • What's the best practice for make username check like Twitter ?

    - by Space Cracker
    I develop registration form and it have username field, and it's required to be like twitter username check ( real time check ) .. i already develop as in every textbox key up I use jquery to pass textbox.Text to page that return if is username exist or not as following code : function Check() { var userName = $('#<%= TextBox1.ClientID %>').val(); if (userName.length < 3) { $('#checkUserNameDIV').html("user name must be between 3 and 20"); return; } $('#checkUserNameDIV').html('<img src="loader.gif" />'); //setTimeout("CheckExistance('" + userName + "')", 5000); CheckExistance(userName); } function CheckExistance(userName) { $.get( "JQueryPage.aspx", { name: userName }, function(result) { var msg = ""; if (result == "1") msg = "Not Exist " + '<img src="unOK.gif" />'; else if (result == "0") msg = "Exist" ; else if (result == "error") msg = "Error , try again"; $('#checkUserNameDIV').html(msg); } ); } but i don't know if is it the best way to do that ? specially i do check every keyup .. is there any design pattern for this problem or nay good practice for doing that ?

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  • Validation of viewstate MAC failed in Safari

    - by Midhat
    Hi I have a web app using forms authentication. When I perform the following steps Let the login cookie expire Click on a link that requires a logged in user The user is redirected to the login page Click the browser back button The user is redirected to the login page again Log in using a valid username/password I get this exception Validation of viewstate MAC failed. If this application is hosted by a Web Farm or cluster, ensure that configuration specifies the same validationKey and validation algorithm. AutoGenerate cannot be used in a cluster. This case appears only in safari (windows and mac). The fundamental difference between safari and other browsers is that when we click the back button in step 4, safari shows the login page again, while the other browsers show the previous page the user was working on. Please help in this regard

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  • windows service cannot access a webservice

    - by Tony
    Hi We have two servers, both are containing a local application connecting to local web service, applications and services are identical on both servers. One of the servers work just fine, The other one is just dead, I have impression the the security configuration are different on those servers. What prevents an application X from connecting a web-service, given that another application y on the same server can connect to it. and X is a windows service. What I should check, what is chances? Thanks

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  • Cast enum to integer

    - by Shanish
    I have a enum class called Gender and I have values in this like public enum GENDER { MALE = 1, FAMALE = 2, OTHERS = 3, } and in my business object I just created a property for this like public GENDER Gender { get { return gender; } set { gender = value; } } in my database its in type integer. For this I tried to assign the Gender value in the add function by its name Gender. but its showing error. Is it possible to cast the enum to integer so that it'll get the value automatically. can anyone help me out here....

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  • WCF TCP Protocol

    - by jobless-spt
    I want to host a WCF service with TCP Protocol. I can host the service using IIS or Windows Service. I need to know what port I need to open for this service for it to be accessible by client?

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  • Gridview "Freeze Pane" Solutions

    - by timeitquery
    I am looking for ways to implement scrolling in a gridview similar to freepanes in Excel. I need to keep the Header and the first columns static, and enable vertical and horizontal scrolling. I have seen commercial solutions, but I was looking for ways to make it work with the gridview.

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  • count of last item of the day

    - by frenchie
    I have a query in which one of the fields contains the count of status. The status can change several times a day and the count should be based on the final status of the day. For instance, this is what I have for Status1. CountStatus1 = (from status in MyDataContext.StatusHistories where status.UserID == TheUserID where status.StatusDateTime.Month == TheMonth.Month where status.StatusDateTime.Year == TheMonth.Year where status.NewStatus == 1 // where the LAST STATUS OF THE DAY == 1 select status.StatusID).Count() The problem is that I want to select the last status of the day to be equal to 1, and count those. The status for a day can change from 1 to 4 to 2 to 5 to 3 and then to finally to 1; if I write the query like this, the count will include 2 1's and then the 4,2,5 and 3 will also be counted in CountStatus4, CountStatus3, CountStatus"n". The return data is a monthly report grouped by day, where each day is a row. The structure of the query looks like this: var OutputStatusReport = from w in MyDataContext.WorkHistory where w.UserID == TheUserID where w.WorkDatetime.Month == TheMonth.Month where w.WorkDatetime.Year == TheMonth.Year group w by w.Datetime.Date into daygroups select new MyObjectModel { CountStatus1 = ...., CountStatus2 = ...., CountStatus3 =...... }; So I need the day of the count to match the day of daygroups. I'm struggling to figure this one out and any help is very welcome. Thanks.

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  • Post JSON array to mvc controller

    - by Yustme
    I'm trying to post a JSON array to a mvc controller. But no matter what i try, everything is 0 or null. I have this table that contains textboxes. I need from all those textboxes it's ID and value as an object. This is my java code: $(document).ready(function () { $('#submitTest').click(function (e) { var $form = $('form'); var trans = new Array(); var parameters = { TransIDs: $("#TransID").val(), ItemIDs: $("#ItemID").val(), TypeIDs: $("#TypeID").val(), }; trans.push(parameters); if ($form.valid()) { $.ajax( { url: $form.attr('action'), type: $form.attr('method'), data: JSON.stringify(parameters), dataType: "json", contentType: "application/json; charset=utf-8", success: function (result) { $('#result').text(result.redirectTo) if (result.Success == true) { return fase; } else { $('#Error').html(result.Html); } }, error: function (request) { alert(request.statusText) } }); } e.preventDefault(); return false; }); }); This is my view code: <table> <tr> <th>trans</th> <th>Item</th> <th>Type</th> </tr> @foreach (var t in Model.Types.ToList()) { { <tr> <td> <input type="hidden" value="@t.TransID" id="TransID" /> <input type="hidden" value="@t.ItemID" id="ItemID" /> <input type="hidden" value="@t.TypeID" id="TypeID" /> </td> </tr> } } </table> This is the controller im trying to receive the data to: [HttpPost] public ActionResult Update(CustomTypeModel ctm) { return RedirectToAction("Index"); } What am i doing wrong?

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  • Hit external url from code-behind

    - by Steven
    I have a form on my site. The user enters their e-mail and selects a location from a dropdown. I then need to post that data to an external site by hitting a url with the user's location and e-mail in the query string. I'm doing this like so: string url = "http://www.site.com/page.aspx?location=" + location.Text + "&email=" + email.Text; HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url); HttpWebResponse response = (HttpWebResponse)request.GetResponse(); My client says that I am not hitting their server, but when going through the debugger, I'm getting a response from their server. I also tried tracking what was happening by using Firebug, and I noticed that there was no POST made to that external site. What am I doing wrong here?

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  • Cannot open database requested by the login. The login failed. Login failed for user

    - by Cipher
    Hi, I have copied a DB from one my computers and using it here. On trying to open the page which requires the fetching content from DB, on con.open I am getting this exception: Unable to open the physical file "E:\Program Files\Microsoft SQL Server\MSSQL10.SQLEXPRESS\MSSQL\DATA\cakephp.mdf". Operating system error 32: "32(The process cannot access the file because it is being used by another process.)". Unable to open the physical file "E:\Program Files\Microsoft SQL Server\MSSQL10.SQLEXPRESS\MSSQL\DATA\cakephp_log.LDF". Operating system error 32: "32(The process cannot access the file because it is being used by another process.)". Cannot open database "cakephp" requested by the login. The login failed. Login failed for user 'Sarin-PC\Sarin'. I have attached the database from Management Studio Express 2008 and I have also checcked the connection string. Here it is: <connectionStrings> <add name="cn" connectionString="server=.\sqlexpress;database=cakephp;integrated security=true;uid=sarin;pwd=******"/> </connectionStrings> In Visual Studio, when I test the connection, it says "Test connection succeeded". However, there is one strange thing going on. When I login to the Management Studio, there is no + sign with the newly attached database, as shown. If the full WebConfig is reqiured to be seen, I have pasted it here: http://pastebin.com/sVAuN0Ug

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  • Inconsistent Routing Results in MVC

    - by HapiDjus
    Seems I'm still missing something to the MVC routing concept. I have a route that follows nearly the same pattern as another route in an area but for what ever reason I get a 404 every time I attempt to run it. I've tried to use Phil Haack's Route Tester DLL and according to that it hits the correct route (matched route comes out to common/itemhistory/{contentid}). When I try to run it for real, it blows up. I'm trying to map a call to a JsonResult by passing a Guid. I've had success with other routes working fine (common is an area in my site). What could I be doing wrong? context.MapRoute( "ItemHistory", "common/itemhistory/{contentid}", new { controller = "common", action = "GetItemHistory" }, new { contentid = @"^(\{){0,1}[0-9a-fA-F]{8}\-[0-9a-fA-F]{4}\-[0-9a-fA-F]{4}\-[0-9a-fA-F]{4}\-[0-9a-fA-F]{12}(\}){0,1}$" } ); context.MapRoute( "Common_default", "common/{action}", new { controller="common", action = "Index" } );

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  • MVC3 html.TextBox

    - by BigTommy79
    I have login view that takes a LoginPageViewModel: public class LoginPageViewModel : PageViewModel { public string ReturnUrl { get; set; } public bool PreviousLoginFailed { get; set; } public LoginFormViewModel EditForm { get; set; } } which is rendered in the view. When a user tries to log in I only want to post the LoginFormViewModel (Model.EditForm) to the controller: public ActionResult Login(LoginFormViewModel loginDetails) { //do stuff } Using Html.TextBox I can specify the name of the form field manually 'loginDetails.UserName' and post back to the controller and everything works. @model Web.Controllers.User.ViewModels.LoginPageViewModel @using (Html.BeginForm()){ @Html.Hidden("loginDetails.ReturnUrl", Model.ReturnUrl) @Html.LabelFor(x => x.EditForm.UserName, "User Name:") @Html.TextBox("loginDetails.UserName", Model.EditForm.UserName) @Html.ValidationMessageFor(x => x.EditForm.UserName) ..... But what I want to do is to use the staticaly typed helper, something like: @Html.TextBoxFor(x => x.EditForm.UserName) But I'm unable to get this to work. Are you only able to post back the same model when useing the strongly typed helpers? Is there something I'm missing on this? Intellisense doesn't seem to give any clues such as a form field string.

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