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• How to export large data to Excel

  - by mavera

  I have a criteria page in my asp.net application. When user clicks report button, firstly in a new page results are binded to a datagrid, then this page is exported to excel file with changing content type method. That normally works, but when large amount of data comes, system.outofmemoryexception is thrown. Does anyone know a way to fix this problem, or another usefull technic to do?

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• How to differentiate between two class of same name in different css on same page.

  - by Rajesh Rolen- DotNet Developer

  on my asp.net page i am linking 2 css files which are used by 2 different controls but the main problem is that one class name is same in both so they are conflicting with each other, please tell me how can i distinguish between them. Both are of jquery, 1 is slider control and another one is time picker control. and they are conflicting on their background image as i want to change background image of slider control's scroller. Please give me solution..

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• Telerik RadSchedular lowercase t in "today"! WTF?

  - by Galilyou

  Telerik's RadSchedular asp.net control got today misspelled. They put it with a lowercase t instead of uppercase T, how can I fix this? Take a look here for a demo

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• Haw can i use a value from a session variable within the attribute of a control?

  - by William Calleja

  I have an ASP control custom built and I need to pass a value taken from a session variable to it like so: <custom:control id='mycontrol' value="+Session['myControlValue']+"> ... </custom:control> the above code obviously doesn't work, I need a way to insert the Session value in the control in this way somehow, can anyone help?

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• How do you register a callback to codebehind that is called when the service call completes?

  - by jphenow

  I'm using a web service with an ASP page. I'd like to keep most of what is going on here happening on the service, but I need to call one function from the codebehind. How do I do this and keep it asynch.? How do you register a callback to codebehind that is called when the service call completes? Thanks!!

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• Is application is runned under IIS or VS web-server

  - by zerkms

  How to determine whether asp.net (mvc2) application is running under IIS (7) or VS internal web-server? Clarification why I need this: I'm composing different dependency graph for IoC-container (ninject) that depends on the workaround (develop - when local VS, and production - when IIS) Or may be another great solution so I can simply differ 3 workarounds: local (VS), test server (IIS) or production server (IIS). How in this case to differ the server? By PC name?

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• Source cannot be found - step through disassembly

  - by dotnetdev

  Hi, I have an ASP.NET web app. I reference an external .dll, made by another team member. When first stepping through my code (which calls this dll's class and method), I get an error (runtime of course) stating that the source cannot be found and if I want to step through disassembly. What causes this? Also, is it possible to add .pdb files to a project's references? Thanks

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• Session state server saying extended class no serializable

  - by jenson-button-event

  I am storing an object in session state (using local session state server), class def is: [Serializable] public class ExtendedOAuth2Parameters : OAuth2Parameters but the service is still reporting: Unable to serialize the session state. In 'StateServer' and 'SQLServer' mode, ASP.NET will serialize the session state objects, and as a result non-serializable objects or MarshalByRef objects are not permitted. [SerializationException: Type 'Google.GData.Client.OAuth2Parameters' in Assembly 'Google.GData.Client, Version=2.1.0.0, Culture=neutral, PublicKeyToken=04a59ca9b0273830' is not marked as serializable.] How to get around it?

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• Sharing login credentials on localhost with 2 web applications on IIS7, possible?

  - by Blankman

  I have 2 asp.net web applications running in IIS7: http://app1.local/ and http://app2.local/ My host.ini file just maps the above urls to localhost: ::1 app1.local ::1 app2.local I added the same machine key to both their web.config's. When I sign into app2, and then go to app1, the call to Request.IsAuthenticated is false? Should this work?

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• Seo friendly Accordion menu

  - by strakastroukas

  Hello, currently i use the accordion menu provided by the asp.net toolkit. The problem is that it is not Seo friendly. So what i am looking for is an accordion menu with the following characteristics. 1) Seo friendliness 2) Preserving of the selected index, on post-backs. 3) Small in k bytes 4) Free of charge Do you have anything in mind?

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• Shipping application required

  - by zohair

  Hi, Can anyone recommend a good FREE shipping application where I can get rates from different courier services, and perform tracking of packages. If there aren't any free ones, do the courier services themselves have API's or webservices of their own? We were thinking of creating an ASP.NET web application in C# that got quotes from FedEx, Purolator, and Canada Post for a specified package. Any help/suggestions are welcome Thank you

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• Convert byte to boolean string in HyperLinkField.DataNavigateUrlFormatString

  - by abatishchev

  I have a asp:GridView with a HyperLinkField. It's DataNavigateUrlFormatString property is set to View.aspx?id={0}&isTechnical={1} Select command of appropriate SqlDataSource returns columns of type INT and BYTE (from SQL Server 2008). So displayed string becomes something like View.aspx?id=1&isTechnical=1. But I want to display isTechnical=true|False, i.e. Convert.ToBoolean(row["isTechnical"]).ToString().ToLowerInvariant(). How to implement such conversion in page markup?

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• Create thumbnail image in c#

  - by Lalit

  Hi,I want to display the thumbnail image in grid view from file location . how to generate that of .jpeg file I am using C# language with asp.net

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• How to check user id already exists

  - by Sheery

  Hi Friends, I am a beginner coder, i am building a project using C# Asp.Net in which i am registering users with a user id, now my question is that how to check that the user id is already exists in the user table or not when user trying to register, i am using sql server 2000?

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• Selectable GridView Row

  - by Hany

  I have a GridView on my ASP.NET page. What I want is to execute a function when I click on the row, and I also want to change the style of this row. I don't want to use the select button of type command field. Any help please?

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• How can I get started with using WF 4.0 in typical web site scenerios?

  - by user193189

  I have developed for SharePoint and in those cases it is clear how workflow can help (You have documents that needs approval and there are built in SharePoint workflows for this) But now I am doing standard ASP.NET web CRUD apps with WCF. I would like to find a way to get WF 4.0 invovled but I am not sure how to do it and never see any examples.... Can anyone give me some basic scenerios that I could use WF for?

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• Web Request error "Logon failure: unknown user name or bad password". Any ideas?

  - by Shri

  I am trying to write a file to a network drive from my asp.Net application and i get this error - Logon failure: unknown user name or bad password. Any ideas? I am able to write to a local drive line C:/temp But when I try to save the file to a network drive such as \Server\Folder, I get the error mentioned above. Any ideas people?

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• Difference between id and name tag attributes HTML

  - by yongjieli

  Hi guys what is the difference between the id and name attributes? they both seem to serve the same purpose of providing an identifier. I would like to know (specifically with regards to ASP.net web forms) whether or not using both is necessary or encouraged for any reasons. Thanks guys!

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• Disable a button on click

  - by Hitz

  I have a button control. Once the user clicks on it, the click event should fire and then the button should get disabled. How can I do this? I have the option to use JQuery or JavasSript or both. Here is my button declaration: <asp:Button ID="Button1" runat="server" Text="Click Me" onclick="Button1_Click" /> On the button click code behind, I have added a Response.Write(). That should get executed and then the button should be disabled

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• Error creating new user by Admin

  - by rahul

  I am creating a web application using Form Authentication of Asp.Net with C# and back end Sql Server. Here in my application administrator login and creates new users. I am using the create user wizard under login controls. My problem is when the new user is created by Admin he is automatically logged out and logged in with new user credentials which he has just created. Any help would be highly appreciated.

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• datagrid speed issue

  - by girish

  i m binding gridview in asp.net application... i m about to bind some thousand records in datagrid... on RowDataBound event of the grid i need to check if the log in user is authorised to view the perticuler record...so i need to send database request...like wise such other two to three operation requires to send request to database.... about three to four request are sended to database during each row bound of the gridview...is it effective on speed of the grid?

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• Restoring web reference in Visual Studio 2008

  - by Mark Cheeseborough

  I had a web reference set in my VS2008 ASP.NET project, but due to some source control weirdness it is no longer listed in the project. I have the set of files in the Web References folder under my project. There's a .wsdl, .disco and several .datasource files. Is there any way to re-add this web reference through the existing files rather than using the "Add Web Reference" dialog?

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• Captcha loading problem in popup

  - by Dev

  I am using jquery.load() to load a page on click of a button. The page that will be loaded contains a captcha. When that page is getting loaded due to the captcha it is making the page to reload again and it is not showing anything. If i am removing the captcha from the load page it is working fine. I am using ASP.NET. Can anyone help me?

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• how to Design a vista like button using CSS

  - by GayaMani

  can any one tell me the way to design vista like buttons using CSS for the application in ASP.NET. For the Buttons like Save,delete,Cancel etc

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• How to implement Datasource property on custom controls?

  - by Jibu P C_Adoor

  Hii, I m working in Asp.net 2.0 with C#.... I have a custom control and i have to use 'Datasource' property which is exactly like a repeater having. Any idea regarding this pls help me.

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