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• How to test to see if a computer has Excel installed (any version)?

  - by JPJedi

  I have a windows form application that when it starts needs to see if the user has Excel installed on the computer and if not display a message informing user that part of functionality will be disabled. Is their an easy way to perform this check? Working in Visual Studio 2008 with VB.Net

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• How to fill a Label.Text - Property via jQuery

  - by Jan-Frederik Carl

  Hello, I use ASP.NET and have a label control on my page, which I fill with the jQuery-Command $('#<%= myLabel.ClientID %>').html(content); .val() does not seem to work with this. Somehow, I have Problems getting the content in code-behind. In the code, the myLabel.Text-Property is still empty.

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• DataContractSerializer vs XmlSerializer: Pros and Cons of each serializer

  - by Vitalie Climenco

  My desktop application serializes objects using XmlSerializer. I was suggested to leverage DataContractSerializer instead. Under which scenarios should I use DataContractSerializer? Many thanks Comments. 1. The output XML file is stored locally. No other applications deserialize objects from that XML file. 2. My application runs with .NET Framework 3.5 SP1.

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• Adding Dropdown list to the particular column..using jquery

  - by kumar

  hi, Hi I need to append the dropdownlist box with certain values to the jquery grid column, that is default dropdownlist for perticular column.... I am using this type of jQuery grid http://www.trirand.net/demoaspnetmvc.aspx can anyone help me out.. Thanks

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• Code editor plugin for MS outlook 2003?

  - by user102533

  I constantly find myself sending .NET code snippets to other developers using MS outlook email. Is there a code editor plugin I can use that can help in formatting and copy/paste (something like SO editor?

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• Howto add postbackurl equivalent property to <div runat="server" />

  - by Snoop Dogg

  I need a div element to cause postback to the server. I can use window.location tough but then I think I won't be able to fire any event back on the server. How can I call the asp.net generated dopostback function properly? Thx in advance

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• String tokens in dotnet

  - by julio

  I am writing a app in dotnet which will generate random text based on some input. So if I have text like "I love your {lovely|nice|great} dress" I want to choose randomly from lovely/nice/great and use that in text. Any suggestions in c# or vb.net are welcome

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• gridview findcontrol in footer problem

  - by harold-sota

  I have a asp.net grid view with the property ShowFooter="True" and a item template as <FooterTemplate> <asp:DropDownList ID="Contetnt1InsertDropDownList" Width="100%" runat="server" DataSource="<%# GetValueForDropDownCombinationContent() %>" DataValueField="LOOKUP_ID" DataTextField="LOOKUP_NAME" > </asp:DropDownList> </FooterTemplate> in the code behind : Dim ddl As DropDownList = DirectCast(combinationViewGridView.FooterRow.FindControl("Loocup1InsertDropDownList"), DropDownList) in a RowCommand event the cast return a null value. Any ideas??

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• Using jpg file from uploaded file to use in Slidershow

  - by raju-soni

  How can i use pic in Slider show if I try to take the picture from Uploaded files and use them with AjaxControlToolKit SliderShow in C# . net

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• Dev environment for smart client application

  - by peanut

  Hi, we are starting a new smart client project, which is .net winform as client, connecting web service at application server in win 2003. currently, all developers are using win xp pro, to enalbe debugging at both client and server side, we try to get both client and web service installed on XP pc, but the web server require service account to be used for authentication to Active Directory which need IIS6, so it won't work on XP(xp only support IIS5). What is best way to work around this?

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• How to make and check a request with content-type as 'application/json'?

  - by kranthi

  hi all, In my asp.net page I have a webmethod which will return data in json.I would like to run this method only when the http request content-type is 'application/json'.I do not understand how do I make a request with content-type as 'application/json' and how to check if the request content-type is 'application/json'? Please help.. Thanks.

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• Sound Manager Classes for Windows

  - by Yakov

  I need some classes for playing short wav sounds, this classes would load this wav files into memory when an instance created, play sounds in background when needed, release this wav files from memory when an instance disposed. How can I do this on C# for windows (.Net 2.0)? (Win API's sndPlaySound, OpenAL or may be any wrapper) Ideally I would love to find an exist solution that simple and able to solve my task. Do you know any solutions for this issue?

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• How to convert Subsonic MVC 1.0 to MVC 2.0 final?

  - by coure06

  Here is the subsonic asp.net mvc application http://subsonicproject.com/docs/MVC_Starter_Template but its for MVC 1.0. How can i convert it to MVC 2.0?

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• doctype syntax error

  - by Andrew Welch

  Do you see any problem with this: I'm in ASP.net and I'm using pikachoose jquery slideshow. It works fine in IE and was working in Firefox. However, somehow it's now stopped working in firefox and firebug is giving the doctype line above out as a syntax error and $ is not defined for the jquery script? Any ideas Thanks Andy

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• jquery / javascript for upload the file from browser to server

  - by Lalit

  Hi, I am developing the application in asp.net mvc with c#. I want the functionality that , a div will popup, so that i can facilate to use to upload the image file from his browser to server , in application domains file system. as usual. This question may be repeat , but i expect something more like how to build this scenario, and what are the security issues may come? and what care have to take while coding in the security perspective ?

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• Lazy resolution of dependency injection

  - by Balaji

  I have .net classes I am using unity as IOC for resolving our dependencies. It tries to load all the dependencies at the beginning. Is there a way (setting) in Unity which allows to load a dependency at runtime?

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• Get handle from "Oracle Developer Forums Runtime" appications...

  - by emdadgar2

  Dear all... I want to get textbox handle from "Oracle Developer Forums Runtime" appications to read it's text with VB.NET or C# But cannot!!!! Please help...

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• ChildControl of a childcontrol is null when calling from Main control

  - by Jan Schoenrock

  Hello I built a webusercontrol in asp.net which contains a databound dropdown. When I directly put this control into a webform it runs well. But if I try to add this control as childcontrol to another control at runtime Childcontrol childcontrol = new Childcontrol (); maincontrol.controls.add(childcontrol) , the dropdown of the childcontrol is not instatiated (is null) so that I run in an exception by trying to bind the data to the dropdown.

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• String to datetime

  - by SARAVAN

  I have a string 12012009 input by the user in ASP.NET MVC application. I wanted to convert this to a DateTime. But if I do DateTime.TryParse("12012009", out outDateTime); it returns a false. So I tried to convert 12012009 to 12/01/2009 and then do DateTime.TryParse("12/01/2009", out outDateTime); which will work But I don't find any straight forward method to convert string 12012009 to string "12/01/2009". Any ideas?

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• XML size limit for XslCompiledTransform.

  - by brain_pusher

  Is there any limit for XML size for which XSLT is applied by XslCompiledTransform in .NET (3.5)? Also, is there any limitation for a length of parameteres passed to XSLT?

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• Backslash escaping in RegularExpressionValidator

  - by frogbot

  I need to ensure that the input value contains at least one dot, so i use the following: <asp:RegularExpressionValidator runat="server" ControlToValidate="MyInput" Text="*" ErrorMessage="must contain at least one dot" ValidationExpression="\.+" /> And that doesn't work. By inspecting the page source i can see that ASP.NET escapes the backslash character so in java-script it looks like "\\.+". Why does it do so and how do i prevent RegularExpressionValidator from escaping it?

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• How to find source of submit using javascript

  - by Rajesh Rolen- DotNet Developer

  Please help me to solve this problem: I have a form in which i have written onSubmit calling a javascript function. please tell me in that javascript function how can i check that who was the event generater ( i mean on which button click this even raised).. Note: onsubmit function call is in form tag.. i am using javascript and asp.net

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• prevent autodropdown by jquery datepicker

  - by snarebold

  hi when I append jquery datepicker to my asp textbox, by clicking on it, my browser auto shows the history of the dates i typed in a dropdownlist. Can I prevent this? Set textbox to readonly isn't a good idea because asp.net doesn't read the values from read only fields in code behind. any other ideas? thank you and best regards. marc

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• How to 'do' ByVal in C#

  - by Jouke van der Maas

  As I understand it, C# passes parameters into methods by reference. In vb.net, you can specify this with ByVal and ByRef. The default is ByVal. Is this for compatibility with vb6, or is it just random? Also, how can I specify what to use in C#? I kind of like the idea of passing parameters by value.

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• How to safely remove global.asax from web service

  - by Niklas

  I have a web service asp.net project which has a global.asax with empty Application_Start and Application_End implementations. As far as I can understand, in this case it is of no use and could be removed (correct me if I'm wrong). Do I need to do anything other than delete global.asax and global.asax.cs (such as change something in web.config or in the project settings)? Just asking in order to not screw up some dependencies I'm not aware of...

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