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• Maintaining session across relay domain?

  - by Steffen

  I'm building a payment page in asp.net, however the page where you order your items is run in HTTP (non-secure) on my domain. When redirecting the user to the payment site, I have to go through a different domain (my payment provider, from whom I borrow the SSL certificate), so my payment url ends up like https://www.paymentprovider.com/somescript.cgi/www.mydomain.com/mypaymentpage.aspx Now the problem is my session is lost, but I store the order in session, so I desperately needs it. Can I somehow send the SessionID in querystring, and restore the session from it - or do I need to stuff the entire order into querystring ? (Not too certain it'll fit though, it's rather long) Any help will be highly appreciated :-)

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• Alert on moving to a different page of a grid when user changes contents of textboxes in a Grid

  - by Ashish Gupta

  In a ASP.NET application I have a paging RadGrid which shows up textbox in each row. Outside the grid, there is an OK button to save the content of all the textbox. If user changes text in any one or more of the textbox and without clicking on the "OK" button, tries to move to a different page number (of the grid by clicking on the page number), he should be prompted for confirmation of save or cancel the changes. I am guessing that one can write a Javascript function which would look for any form input control (textbox in my case) and detect changes and If there are changes, would prompt the user. However, I am not sure where I can call this function from? Any suggestion on this or a better way to achieve this would be appreciated. I am using RadGrid but I guess this should be applicable to GridView as well.

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• Can backslash be encoded correctly in URL with URL rewrite?

  - by Millionbonus

  I am working on a ASP.NET MVC2 project. The problem is when a string which would be rewritten into URL that contains special character such as backslash or question mark. That will make URL wrong, even I have encoded it before. For example: 1. I have a product id "p001/2-2". 2. I encoded it into "p001%252f2-2" 3. The URL http://domain.com/ProductView/p001%252f2-2 will response HTTP Error 400 - Bad Request. How can I get it correct?

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• What might cause SQL error Cannot find the object "dbo.InspectionEvents" because it does not exist o

  - by mrtrombone

  Hi My ASP.Net app is periodically getting the error 'Cannot find the object dbo."XXXX" because it does not exist or you do not have permissions' when it tries to execute a specific stored procedure that writes to the database. I have seen a few forum posts about this issue but the strange thing is that the method works fine almost all of the time, just every now and then I see it in my error logs. Can anyone tell me why this might works Ok most of the time but occassionally fire the error? Application is C# using Enterprise Library 4.1 Data Access. Database is SQL Server 2005 Cheers

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• MembershipUser class CreateUser password paramter

  - by d3020

  I'm using the ASP.NET Configuration for my users and their roles. I'm also using the MembershipUser class with its function CreateUser. I have it working, but was curious about something. When I add a new user and pass this function its password parameter (which in this case is coming from a textbox on the page). It seems like it only finds and accepts that textbox value when it is 6 chars or more. For example, if I type in ab123 it'll say object not set to instance of an object. However if I do abc123 it works fine. Where is that being told to do that. I didn't know if this was something I could change or where it might be doing that. Thanks.

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• app_offline not being respected?

  - by Jonas

  I'm doing some tests with deploying an application using the app_offline.htm functionality in asp.net. I've found that if I have a working application, and I put an app_offline.htm file in the root, and then rename the \bin folder, my app_offline.htm file does not get displayed. If I rename the bin folder back to "bin", my app_offline.htm file gets displayed as expected. I had assumed/thought that the presence of app_offline would supersede anything else that happens...am I mistaken? This is on Windows 7/IIS 7.5.

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• Javascript top banner control [closed]

  - by Mike Pateras

  Possible Duplicates: How to show popup message like in stackoverflow Header message just like at Stack Overflow How to display a message on screen without refreshing like SO does? I'm looking for something like StackOverflow's banner that pops up (or rather drops down) from the top of the screen when you have a new alert. Preferably some javascript widget, though I'd be open to anything that will work with an ASP.Net MVC2 web page. All I'm looking for is a simple top-banner alert/message that looks good, preferably with a cancel button. Is there something like that, freely available?

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• What is the equivalent to IScriptControl for Web.UI.Page?

  - by Jeff Dege

  We've been using IScriptControl to tie javascript objects to our UserControls and ServerControls, and it's worked fine. The problem is that ASP.NET seems to provide no method to tie a javascript object to a Page. Up to now, we've been putting plain functions in the global namespace, but I am developing a serious allergy to that practice. It'd be easy enough to wrap our functions into a javascript class, and to include the javascript file on the page, but how to instantiate the object, how to reference it from callback events, and how to pass data to it from the code-behind, I haven't figured out. Or rather, the methods we've been using up to now (hidden fields, emitted javascript strings, etc.), really bug me. Anyone have better ideas?

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• Run JavaScript after a DropDownList is DataBound

  - by Daniel Coffman

  I need to trigger a JavaScript function to be called AFTER a DropDownList on my ASP.NET WebForms page is DataBound, because the SelectedIndex of this DropDownList is the parameter to the JavaScript function. I've tried this various ways, but it seems that if I do it with pure JavaScript onload by using ClientScript.RegisterStartUpScript, the control can be found (because it hasn't been assigned a clientID yet?). If I use jQuery (document).ready { } it says that the DropDownList has no selectedIndex.value. So I need some JavaScript to run AFTER the control has a value set by the DataBind. How can I accomplish this? onChanged won't work because I need the function to fire on the first page load, with no user input. DataBinding the SelectedIndex of the DropDownList doesn't cause the JavaScript onChanged event to fire.

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• Does NInject work in medium trust hosting?

  - by Gabriel

  I'm doing shared hosting with GoDaddy and I developed a sample ASP.NET MVC app using Castle Windsor and unfortunately, it didn't work in a medium trust setting. Specifically, I got this error: "[SecurityException: That assembly does not allow partially trusted callers"... etc. GoDaddy is sadly not flexible in their trust policy. I'm not tied to Windsor and would like to try another one that will work under Medium Trust. I'd actually like to use NInject, but I've read people having mixed success. The only one I've read that works with no problem is Microsoft's Unity. My question is, does NInject work in medium trust? If not, what are my options?

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• XMLHttpRequest - JSON - .NET

  - by user318194

  I am trying to send JSON from my mozilla addon to my asp.net page. var myJSONObject = {"userName": una,"password": pass}; request = new XMLHttpRequest(); request.open("GET",http://www.google.com/jo=" + myJSONObject,true, null, null); on my .net page I have tried several ways of doing it but not able to find the best way to serialize and deserialize the code. All I need is to send the json data back n forth and parse it on C# n javascript. I am new to all this so any guidance and/or change in direction is appreciated.

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• Using LINQ-To-Entities to Generate Information

  - by parminder

  I am working on a website where a user can add tags to their posted books, much like is currently done for questions on Stack Overflow. Classes: Books { bookId, Title } Tags { Id Tag } BooksTags { Id BookId TagId } Here are few sample records. Books BookId Title 113421 A 113422 B Tags Id Tag 1 ASP 2 C# 3 CSS 4 VB 5 VB.NET 6 PHP 7 java 8 pascal BooksTags Id BookId TagId 1 113421 1 2 113421 2 3 113421 3 4 113421 4 5 113422 1 6 113422 4 7 113422 8 Questions I need to write something in LINQ to entity queries which gives me data according to the tags: Query: bookIds where tagid = 1 Returns: bookid: 113421, 113422 Query 2: tags 1 and 2 Returns: 113421 I need tags and their count to to show in related tags, so in first case my related tags class should have following result. RelatedTags Tag Count 2 1 3 1 4 2 8 1 Second Case: RelatedTags Tag Count 3 1 4 1 How do I do this in LINQ?

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• How to programatically record the start and end of an MVC FileResult for logging of incomplete downl

  - by Richard

  Hi, I have been investigating how My ASP.NET MVC application can log unsuccessful / incomplete downloads. I have a controller handling the file requests which currently returns a FileResult. What I need to record is the IPAddress, filename and when the download started, then the same data and when it completed. I have looked at intercepting the request start and end with an HttpModule and also IIS7 failed request tracing but am not sure which route would be best and have this feeling that maybe I am missing an obvious answer to the problem. Does anyone have any suggestions or know of any alternatives as this seems like something many people would want to know from their web server? Thanks for your help

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• Can someone explain me the parameter RETURN_VALUE ?

  - by Ronnie Chester Lynwood

  hello. I want to know what does RETURN_VALUE means! I'm stucked at this thing. how to use RETURN_VALUE on MSSQL SP ? thanks.. ASP: Set cmdDB = Server.CreateObject("ADODB.Command") With cmdDB .ActiveConnection = ADOConM .CommandText = "usp_jaljava_member_select" .CommandType = adCmdStoredProc .Parameters.Append .CreateParameter("RETURN_VALUE", adInteger, adParamReturnValue, 0) .Parameters.Append .CreateParameter("@TLoginName", adVarChar, adParamInput, 15,lcase(TLoginName)) .Parameters.Append .CreateParameter("@TPassword", adVarChar, adParamInput, 20,TPassword) .Parameters.Append .CreateParameter("@retval", adVarChar, adParamOutput, 50) ' .Parameters.Append .CreateParameter("@TPinCode", adVarChar, adParamInput, 15,TPinCode) .Execute,,adExecuteNoRecords RetVal = .Parameters("@retval") Ret = Trim(.Parameters("RETURN_VALUE")) 'Set .ActiveConnection = Nothing End With Set cmdDB = Nothing UTid = RetVal MSSQL SP: CREATE PROCEDURE usp_jaljava_member_select @TLoginName varchar(15), @TPassword varchar(20), @retval varchar(50) OUTPUT --@TPinCode varchar(15) AS

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• Do a database query on Textbox onblur event

  - by user279521

  I am using asp.net 3.5 with C#. I need to do a database lookup when a user enters ProductID in txtProductID. I guess doing javascript is out of the question since this will have to be server side call. I wrote this code in the page_load event of the webpage: protected void Page_Load(object sender, EventArgs e) { txtProductID.Attributes.Add("onblur", "LookupProduct()"); } protected void LookupUser() { //Lookup Product information on onBlur event; } I get an error message: Microsoft JScript runtime error: Object expected How can I resolve this ?

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• RenderAction in an HtmlHelperExtension Method?

  - by TimLeung

  I am trying to call the RenderAction Extension Method within my own Html Helper: System.Web.Mvc.Html.ChildActionExtensions.RenderAction(helper, "account", "login"); this is so that along with some additional logic, I would like all html helpers to use a common method name structure when calling it on the view: <%= Html.CompanyName().RenderAccount() %> but the problem I am having is that, asp.net will complain about not finding the actual route it needs to process. It does not take in the parameters of "controller" to be used as the action and "login" to be used as the action. It seems to only reference the current route. Any ideas how I can package up the RenderAction?

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• Weird problem: IE8 user can't authenticate with web service

  - by NovaJoe

  I have an asp.net app. It has a page that requires authentication. The authenticated user can view the page because he/she is authenticated. The page makes a jQuery Ajax call to a WCF service. The WCF service checks that the user is authenticated via HttpContext. I have a user that is using WinXP and IE8. This user can authenticate to the page, but when the Ajax call is made from the page to the wb service, the user recieves my "session not authenticated" message on the page, generated by the service and displayed on the page. When I use the same OS/browser combo, the page and service work just fine, as expected; no errors. What option in this user's IE settings would cause this behavior?

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• Where and how to validate and map ViewModel?

  - by chobo

  Hi, I am trying to learn Domain Driven Design and recently read that lots of people advocate creating a ViewModels for your views that store all the values you want to display in a given view. My question is how should I do the form validation? should I create separate validation classes for each view, or group them together? I'm also confused on what this would look like in code. This is how I currently think validation and viewmodels fit in to the scheme of things: View (some user input) - Controller - FormValidation(of ViewModel) - (If valid map to ViewModel to Domain Model) - Domain Layer Service - Infrastructure Thanks! P.S. I use Asp.net MVC with C#

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• How to implement dynamic changing password for this scenario?

  - by Mike108

  What is the Best practice of dynamic changing password for this scenario? The scenario is: There are three web apps using ASP.NET. App1 checks the passwords of app2/app3 to authenticate the identity, and if app2/app3 is authenticated then app1 is allowed to receive information from App2 and App3. And app1 has to change the passwords of app2/app3 every two hour for security reason. Is it possible that there is a way to implement this scenario without app1 saving the passwords of app2/app3 for security reason? Or is there any best practice for dynamic changing password scenario?

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• Register javascript array from code behind in facebook

  - by Ahmy

  I need to set a javascript array from code behind using C# in Asp.Net2008 the problem now is that when i register the array using the following C# code: string ArrVal = ""; string Sep = ""; for (int i = 0; i < 17; i++) { ArrVal += Sep + FilesCount[i].ToString(); Sep = ","; } Page.ClientScript.RegisterArrayDeclaration("FilesArr", ArrVal); And the Client code is : var FileName = FilesArr[0]; in any web application it is working well but at my application that is released in the facebook platform the javascript code doesn't see the array but in ordinary web application the javscript code see the registered array can any one tell me why this problem occurrs ? Thanks in advance for any reply and trial.

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• Providing SaaS functionality to a .NET portal with DLLs

  - by Abdullah Jibaly

  I'm not sure I'm asking the right question here, but I'm looking to provide web based functionality from one ASP.NET application to another remote 'portal-like' application. Is it possible to simply give the portal a DLL? As an example, let's say the SaaS web app has a patient-entry form that I want to be able to use from the portal application. I would like the portal app to be able to set preferences (permissions, color, style, etc), make a function call, and have that capability presented within a certain div or something. Is there any .NET technologies that provide this kind of integration?

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• Telerik RadControls RadFormDecorator - Tow Problem About Positioning

  - by LostLord

  hi my dear friends ... i am using asp.net with c# web app in vs 2008 problem 1: i do not know why Telerik RadControls- RadFormDecorator Moves some controls (such as Buttons or chech boxes) and changes their positioning up or down in my form after viewing in browser... i put those controls in a cell of a table ... but not help i had this problem about radajaxmanager and by setting UpdatePanelsRenderMode property to inline problem solved - but here there is no property like that... what is going on here? problem2: i decorated my buttons and chechboxes with radformdecorator (telerik radcontrols) control... when i click on a checkbox to set it to true or false so my webpage positioning goes to up (like when postback occurs , but this is not postback) how can i prevent this problem ? thanks for attention

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• Sessionstate not being saved between pages

  - by Grant

  Hi, i am having problems with an asp.net c# site whereby i am setting a session state object to true and then redirecting to another page that needs to check the value of the session state object and it is null. Sometimes it is set correctly and other times is is simply null. When i debug on my local machine it works perfectly every time. Only when i upload to my web server does this temperamental behaviour happen. As it is based around the security of the site it is obviously important that the session data be valid and accurate every time. Is session state data unreliable? AFAIK its set to inproc, cookieless, 30 min timeout, vanilla installation of IIS. Does anyone have any suggestions? Perhaps i need to thread.sleep inbetween the storing of the session data and the reading? NB: the time between the write and the read is about 70ms.. ample time for the data to be written to RAM.....

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• Error: A SQLParamenter wtih ParameterName @myparm is not contained by this SQLParameter Collection

  - by SidC

  Good Morning, I'm working on an ASP.NET 3.5 webforms application and have written the following code: Protected Sub btnSubmit_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnSubmit.Click Dim connectionString As String = WebConfigurationManager.ConnectionStrings("Diel_inventoryConnectionString").ConnectionString Dim con As New SqlConnection(connectionString) Dim adapter1 As New SqlDataAdapter adapter1.SelectCommand = New SqlCommand adapter1.SelectCommand.CommandType = CommandType.StoredProcedure adapter1.SelectCommand.CommandText = "PartSproc" Dim parmNSN As New SqlParameter("@NSN", SqlDbType.NVarChar) Dim parmName As New SqlParameter("@PartName", SqlDbType.NVarChar) txtNSN.Text = adapter1.SelectCommand.Parameters("@NSN").Value txtSearch.Text = adapter1.SelectCommand.Parameters("@PartName").Value Dim dt As New DataTable() adapter1.Fill(dt) MySearch.DataSource = dt MySearch.DataBind() End Sub When I run the page, I receive the error A SQLParameter with @NSN is not contained by this SQLParameter Collection. I tried using apostrophes around the @NSN and @PartName but that does not work either and presents expression expected error. How might I rectify the above code so that it references the @NSN and @PartName parameters correctly? Thanks, Sid

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• MVC Application Design

  - by Paul Brown

  Hello I am about to create my first proper application in ASP.NET MVC3. It is basically a jobs site with 3 levels: 1) Users - No registration and can view all jobs posted on the website 2) Posters - Need to register and login to post adverts 3) Admin - Need to register and login to post adverts and review postings before they go live Would you suggest I use the same Jobs controller for the three levels I mention above? With a LIST action to show jobs to "Users" and a CREATE & EDIT action for the "Posters" & "Admin"? Thanks Paul

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