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• C#. Document conversion to PDF

  - by Umar Siddique

  Hi. I need to convert below mentioned file formats to pdf using C#/VB.Net. User will upload the file using FileUpload control and system will returns the pdf file after converting the document. doc/docx to pdf xls/xlsx to pdf ppt/pps to pdf Does ITextSharp provide such facility ? Please Only mentioned open source or free libraries. Thanks

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• Collection<> vs List<>

  - by Ten Ton Gorilla

  What's the functional difference in Collection< and List< in .NET 3.5? When would you use a Collection instead of a List?

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• Windows - put HDD stand-by and sleep mode

  - by iulianchira

  How can I put a hard disk drive in stand-by or sleep mode in Windows, in a programmatic manner. Does the Windows API or any .Net libraries provide any functions to achieve this? (I am aware that I should probably not interfere with Windows's power management mechanism, but this is not something I intend to use in a production environment, it is a proof of concept for some algorithms).

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• Possible to run OData on a shared host in mixed auth mode?

  - by Malachi

  My host has been pretty good about helping to tweak things to get my various .NET peices working, but they are unwilling to change the IIS authorization settings. Presently my OData service whines about that. Have I got any options?

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• how to read values from the remote OPC Server

  - by Shailesh Jaiswal

  I have created one asp.net web service. In this web service I am using the web method as follows. The web service is related to the OPC ( OLE for process control) public string ReadServerItems(string ServerName) { string txt = ""; ArrayList obj = new ArrayList(); XmlServer Srv = new XmlServer("XDAGW.CS.WCF.Eval.1"); RequestOptions opt = new RequestOptions(); ReadRequestItemList iList = new ReadRequestItemList(); iList.Items = new ReadRequestItem[3]; iList.Items[0] = new ReadRequestItem(); iList.Items[0].ItemName = "ServerInfo.ConnectedClients"; iList.Items[1] = new ReadRequestItem(); iList.Items[1].ItemName = "ServerInfo.TotalGroups"; iList.Items[2] = new ReadRequestItem(); iList.Items[2].ItemName = "EventSources.Area1.Tracking"; ReplyItemList rslt; OPCError[] err; ReplyBase reply = Srv.Read(opt, iList, out rslt, out err); if ((rslt == null)) txt += err[0].Text; else { foreach (xmldanet.xmlda.ItemValue iv in rslt.Items) { txt += iv.ItemName; if (iv.ResultID == null) // success { txt += " = " + iv.Value.ToString() + "\r\n"; obj.Add(txt); } else txt += " : Error: " + iv.ResultID.Name + "\r\n"; } } return txt; } I am using the namespaces as follows using xmldanet; using xmldanet.xmlda; I have installed XMLDA.NET client component evaluation. In this there is an in built Test client which successfully reads the values of these data items from the remote OPC server. I also provides the template through which we can build the OPC based applications. In the above code I am trying to read the values of the data items but i am not able to read the values. I have applied the breakpoint. In that I can see that the condition if (iv.ResultID == null) becomes false & also there is null values in the variable rslt. Please tell me where I am doing mistake ? how should I correct my mistake ? can provide me the correct code ?

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• String literals vs constants for Session[...] dictionary keys

  - by FreshCode

  Session[Constant] vs Session["String Literal"] Performance I'm retrieving user-specific data like ViewData["CartItems"] = Session["CartItems"]; with a string literal for keys on every request. Should I be using constants for this? If yes, how should I go about implementing frequently used string literals and will it significantly affect performance on a high-traffic site? Related question does not address ASP.NET MVC or Session.

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• HyperLinks In DataGridView

  - by Hany

  I am working on C# application which is like a small search engine. The user will enter a word and the program will return the files that contains this word. I have an array of file paths (as strings) and I want to show these paths as links in a DataGridView, so that when the user clicks the file name the file will be opened. Note: I am working on C# Winforms, not ASP.net

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• Hot to find a control in a java runtime?

  - by Kovu

  Hi, I will write a proxy for something For this I must write data very ugly in 2 textboxes in a webpage (http://www.knuddelz.de). You see: username and password and a button with a login. How to find the control in C#.net 2.0 or 3.5 and wirte data in it?

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• phpBB vs DotNetNuke

  - by nCdy

  For community . I'm beginner at ASP.NET and noone at PHP ) but mostly people use PHP engines for community with a forums, I'm interesting in all aspects. Besides ... I want an beauty gallery there. And I don't really have no idea about vbulletin (I think I wont it) So what do you think about DotNetNuke ?

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• Transfer data from SQL Server table using query to Excel and vice-versa

  - by Abhishek Kapuria

  I want to transfer data from SQL Server table to Excel sheet using 3 tier architecture in asp.net 3.5. After user has made required changes in the Excel sheet I want Excel sheet to get uploaded and update data in the table with validation for proper data.

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• How can I override an inline style with an external css?

  - by Aaron Fischer

  I am trying to restyle a table generated by an asp.net gridview control. The problem I have is that the gridview is generating an inline styles. How do I make the browser render my css rather then the html style attribute?

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• Visual Studio 2005 doesn't support Sql Server 2008

  - by Erez

  I'm developing Reporting services on VS2005 and have to connect to SQL Server 2008. The following Error occurs: "This server version is not supported. You must have Microsoft SQL Server 2005 Beta 2 or later." I found on the net a patch for it, but it doesn't work (link to patch) "The upgrade patch cannot be installed by the Windows Installer Service because the program to be upgraded is missing, or the upgrade patch may update a different version of the program." what else can I do ? :(

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• Get selected Value from dropdownlist after submit?

  - by sam

  Hi guys, I populate dropdownlist in ASP.NET webforms: <asp:DropDownList runat="server" ID="salesman"></asp:DropDownList> users= Buslayer.GetSalesRep(); foreach (userentity user in users) { salesman.Items.Add(new ListItem(user.FirstName + " " + user.LastName, user.UserID.ToString())); } after submission, I am still getting selected index = 0, I tried all of this: Response.Write("" + salesman.SelectedValue); Response.Write("" + salesman.SelectedItem.Value); Response.Write("" + salesman.SelectedIndex); none works, ????????????????????????????? thanks

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• Right align controls in blueprint css

  - by Sash

  Is there anyway we can right-align a control/set of controls in a page? I am using BlueprintCSS framework in asp.net Thanks, Sashidhar Kokku

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• How to determine Threading Model of given COM library?

  - by Jakub Šturc

  I have a COM library I should use in my ASP.NET MVC application. However I am unsure about its thread apartment model. How can I determine it?

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• how close to excel ergonimics can you make jqgrid

  - by oo

  I have been looking through [this jqgrid documentation][1] and see the example: i wanted to see how close you can get to data entry that is close to excel like moving arrows keys changes selection supporting Copy and paste from one cell to another column fills for a particular value. Is this asking to much for the web? If its not possible, are there other third party asp.net mvc components that do have these capabilities.

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• Activate jQuery accordion section with validation errors

  - by Khalil Dahab

  I am using xVal for client validation in an ASP.NET MVC application. Since I have too many fields in one of the forms, I split it into sections and used jQuery accordion to display one section at the same time. Is there a way to activate the accordion section which contains validation errors when the user clicks submit?

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• Java web service serialization

  - by Polaris

  I use Java service in .NET application. I can see and use enums which is used in web methods as parametrs but can't see enums which is not used in any web wethod.

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• Return <bar>foo</bar> instead of <string>foo</string> in WCF rest method

  - by Joannes Vermorel

  I have a REST web method in .NET 3.5: [OperationContract] [WebInvoke(UriTemplate = "", Method = Verbs.Get)] public string GetBar() { return "foo"; } The response gets formatted as <string>foo</string> while I would prefer <bar>foo</bar> instead. Does anyone know how to do that? I feel I am missing something obvious.

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• Convert DateTime to Past tense string

  - by Shawn Mclean

  In .net, is there a way to convert DateTime to past tense easily (built in function or 3rd party library): eg. 4 mins ago Something similiar to how the date is on Stackoverflow.

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• How can I restrict reflection for certain assemblies?

  - by viky

  In my .net application I want to restrict reflection to certain assemblies. I mean I want that my a particular assembly can be reflected by only some predefined assemblies not by any other than that. How can i do that?

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• Replace all & that are not a HTML entity using C#

  - by Eddie

  Basically a dup of this question using php, but I need it for C#. I need to be able to replace any & that is not currently not any HTML entity (e.g. &amp;) before outputting to screen. I was thinking a regex, but I'm not sure if .Net has something built in that will do this.

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• Is the WCF REST Starter Kit still current?

  - by jonhobbs

  I've been researching the possibility of building a REST service in .net and came across the WCF REST Starter Kit. It looks useful but the latest preview release came out over a year ago and there doesn't seem to be a production release. Does that mean it's not being worked on by MS any more? Has it been superseded by something better?

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• C# and Spring: How to serialize objects into Spring xml files ?

  - by Francois

  Hi all, I am wondering if it is possible to save objects into Spring language... In Java it seamed possible (search for spring java marshalling). But Google did not help me finding what I am looking for concerning Spring Net. So, I am asking if you guys know one tool that includes this feature. Any help would be appreciated. Francois

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• Performance Hosting under WAS vs Host as Service?

  - by ashraf

  I have some performance issue when I host WCF service (net.tcp) under WAS (IIS 7). It is working fine when I host service under console application. The issue is WCF Become Slow After Being Idle For 15 Seconds and a solution. After applying Wenlong Dong workaround delay is gone, but it does not work in WAS (IIS 7). I tried to put "ThreadPoolTimeoutWorkaround.DoWorkaround()" in static AppInitialize() as suggested here, still no luck. Thanks

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