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• Mongodb performance on Windows

  - by Chris

  I've been researching nosql options available for .NET lately and MongoDB is emerging as a clear winner in terms of availability and support, so tonight I decided to give it a go. I downloaded version 1.2.4 (Windows x64 binary) from the mongodb site and ran it with the following options: C:\mongodb\bin>mkdir data C:\mongodb\bin>mongod -dbpath ./data --cpu --quiet I then loaded up the latest mongodb-csharp driver from http://github.com/samus/mongodb-csharp and immediately ran the benchmark program. Having heard about how "amazingly fast" MongoDB is, I was rather shocked at the poor benchmark performance. Starting Tests encode (small).........................................320000 00:00:00.0156250 encode (medium)........................................80000 00:00:00.0625000 encode (large).........................................1818 00:00:02.7500000 decode (small).........................................320000 00:00:00.0156250 decode (medium)........................................160000 00:00:00.0312500 decode (large).........................................2370 00:00:02.1093750 insert (small, no index)...............................2176 00:00:02.2968750 insert (medium, no index)..............................2269 00:00:02.2031250 insert (large, no index)...............................778 00:00:06.4218750 insert (small, indexed)................................2051 00:00:02.4375000 insert (medium, indexed)...............................2133 00:00:02.3437500 insert (large, indexed)................................835 00:00:05.9843750 batch insert (small, no index).........................53333 00:00:00.0937500 batch insert (medium, no index)........................26666 00:00:00.1875000 batch insert (large, no index).........................1114 00:00:04.4843750 find_one (small, no index).............................350 00:00:14.2812500 find_one (medium, no index)............................204 00:00:24.4687500 find_one (large, no index).............................135 00:00:37.0156250 find_one (small, indexed)..............................352 00:00:14.1718750 find_one (medium, indexed).............................184 00:00:27.0937500 find_one (large, indexed)..............................128 00:00:38.9062500 find (small, no index).................................516 00:00:09.6718750 find (medium, no index)................................316 00:00:15.7812500 find (large, no index).................................216 00:00:23.0468750 find (small, indexed)..................................532 00:00:09.3906250 find (medium, indexed).................................346 00:00:14.4375000 find (large, indexed)..................................212 00:00:23.5468750 find range (small, indexed)............................440 00:00:11.3593750 find range (medium, indexed)...........................294 00:00:16.9531250 find range (large, indexed)............................199 00:00:25.0625000 Press any key to continue... For starters, I can get better non-batch insert performance from SQL Server Express. What really struck me, however, was the slow performance of the find_nnnn queries. Why is retrieving data from MongoDB so slow? What am I missing? Edit: This was all on the local machine, no network latency or anything. MongoDB's CPU usage ran at about 75% the entire time the test was running. Edit 2: Also, I ran a trace on the benchmark program and confirmed that 50% of the CPU time spent was waiting for MongoDB to return data, so it's not a performance issue with the C# driver.

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• Umbraco CMS stripping ALT tags from images when content saved

  - by Yucel

  Umbraco CMS stripping ALT tags from images when content saved Umbraco is taking this < img alt="Your Title - for example Mr., Mrs., Ms." src="../media/21283/q16x16.gif" width="16" height="15" /> and turning it into this. <img alt="" src="/media/21283/q16x16.gif" width="16" height="15" rel="16,15" /> If I alter the alt tag after this processing then the alt tag is saved.

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• How to make ASP.NET MVC2 project templates to show up in VWD2008 Express?

  - by Seh Hui 'Felix' Leong

  OK I'm completely stumped here: I have installed (and reinstalled) ASP.NET MVC2 installed several times and I still can't see the ASP.NET MVC2 project templates shown in Visual Web Developer 2008 Express. I had checked the default project directory templates and had verified that those templates are installed, for example these templates files are found C:\Program Files\Microsoft Visual Studio 9.0\Common7\IDE\VWDExpress\ProjectTemplates\CSharp\Web\1033: EmptyMvcWebApplicationProjectTemplatev2.0.cs.zip MvcWebApplicationProjectTemplatev2.0.cs.zip Any idea of tracking what's the problem and fix it?

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• Convert PHP code to C#

  - by Rob

  Is there a web site or tool that will convert a piece PHP code to C#? something similar to http://converter.telerik.com/ or http://www.developerfusion.com/tools/convert/csharp-to-vb/

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• excel automation chart

  - by user330737

  Hi everyone, Can someone help to solve this problem. I have multiple chart on several worksheet. I want to use excel automation by csharp to edit chart. For example: All chart contain y-axis:Total, x-axis:Month. Chart type is Bar or Block. If the month is March then the Bar or Block is Red color. Any know?

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• Visual studio has gone crazy trying to create files

  - by zachary

  I downloaded Process Monitor and began monitoring my project directory that I am writing code in. I see endless entries every couple seconds of: Operation: Create File C:\Inetpub\wwwroot\csharp C:\Inetpub\wwwroot\code C:\Inetpub\wwwroot\web and so on for the rest of the templates Then it says the result is PATH NOT FOUND. What is happening? Has Visual Studio GONE CRAZY?!?!?!?!?!?!?!

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• Cell value is read as #### in excel

  - by Sathish

  I am reading a cell value from excel using named range in my case sometime the column width is smaller then the value that is present in the cell and hence it is appearing as ##### when it is huge number. when i read this from csharp it is reading as #####. Any fix for this

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• using IE credentials to log on with c#

  - by james

  Hi i am writing a HTML parser for helping with some job duties, I can enter the site using IE explorer. but using csharp code i get an error i have tried using client.Credentials = CredentialCache.DefaultNetworkCredentials; client.Proxy.Credentials = CredentialCache.DefaultCredentials; i don't get the requested page, but an error page. if i can view page in explorer there must be a way to retrieve its html in C# (note that same page in other browsers requires authintication - not in IE) appreciate the help

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• Clarification How CRF(Conditional random Field) works using examples

  - by Moges.A

  I read different documents how CRF(conditional random field) works but all the papers puts the formula only. Is there any one who can send me a paper that describes about CRF with examples like if we have a sentence "Mr.Smith was born in New York. He has been working for the last 20 years in Microsoft company." if the above sentence is given as an input to train, how does the Model works during the training taking in to consideration for the formula for CRF? Moges.A

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• Pop3 to SMTP message custom forwarder in C#

  - by Troy

  I'd like to write a service that periodically checks a POP3 account for new messages and based on custom business logic forwards the messages to an appropriate "To", and possibly changes the "From" as well. I might need to keep some messages on the server until certain conditions are ready for them to be forwarded. I found a sample using Chilkat .NET components that might work: http://www.example-code.com/csharp/pop3_forwarder.asp My question is: Are there any other examples of this in the .NET space using any other components? Thanks!

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• Best way to parse float?

  - by boris callens

  What is the best way to parse a float in CSharp? I know about TryParse, but what I'm particularly wondering about is dots, commas etc. I'm having problems with my website. On my dev server, the ',' is for decimals, the '.' for separator. On the prod server though, it is the other way round. How can I best capture this?

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• VS2008 Smart Device Class Library Project Template

  - by Nelson Reis

  I was trying to create a new Class Library project targeted for the .NET Compact Framework. However, when I select "New project - Smart Device" I only have the Smart Device Project template. I've checked the folder: C:\Program Files\Microsoft Visual Studio 9.0\Common7\IDE\ProjectTemplates\CSharp\SmartDevice\1033 It contains several project templates: SmartDeviceClassLibrary SmartDeviceConsoleApplication SmartDeviceEmptyProject SmartDeviceWindowsApplication SmartDeviceWindowsControlLibrary None of those are shown on my IDE. How can I use one of those project templates?

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• Should I allow sending complete structures when using PUT for updates in a REST API or not?

  - by dafmetal

  I am designing a REST API and I wonder what the recommended way to handle updates to resources would be. More specifically, I would allow updates through a PUT on the resource, but what should I allow in the body of the PUT request? Always the complete structure of the resource? Always the subpart (that changed) of the structure of the resource? A combination of both? For example, take the resource http://example.org/api/v1/dogs/packs/p1. A GET on this resource would give the following: Request: GET http://example.org/api/v1/dogs/packs/p1 Accept: application/xml Response: <pack> <owner>David</owner> <dogs> <dog> <name>Woofer</name> <breed>Basset Hound</breed> </dog> <dog> <name>Mr. Bones</name> <breed>Basset Hound</breed> </dog> </dogs> </pack> Suppose I want to add a dog (Sniffers the Basset Hound) to the pack, would I support either: Request: PUT http://example.org/api/v1/dogs/packs/p1 <dog> <name>Sniffers</name> <breed>Basset Hound</breed> </dog> Response: HTTP/1.1 200 OK or Request: PUT http://example.org/api/v1/dogs/packs/p1 <pack> <owner>David</owner> <dogs> <dog> <name>Woofer</name> <breed>Basset Hound</breed> </dog> <dog> <name>Mr. Bones</name> <breed>Basset Hound</breed> </dog> <dog> <name>Sniffers</name> <breed>Basset Hound</breed> </dog> </dogs> </pack> Response: HTTP/1.1 200 OK or both? If supporting updates through subsections of the structure is recommended, how would I handle deletes (such as when a dog dies)? Through query parameters?

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• Using the HTML 'label' tag with radio buttons

  - by GlenPeterson

  Does the label tag work with radio buttons? If so, how do you use it? I have a form that displays like this: First Name: (text field) Hair Color: (color drop-down) Description: (text area) Salutation: (radio buttons for Mr., Mrs., Miss) I'd like to use the label tag for each label in the left column to define its connection to the appropriate control in the right column. But If I use a radio button, the spec seems to indicate that suddenly the actual "Salutation" label for the form control no longer belongs in the label tag, but rather the options "Mr., Mrs., etc." go in the label tag. I've always been a fan of accessibility and the semantic web, but this design doesn't make sense to me. The label tag explicitly declares labels. The option tag selection options. How do you declare a label on the actual label for a set of radio buttons? UPDATE: Here is an example with code: <tr><th><label for"sc">Status:</label></th> <td>&#160;</td> <td><select name="statusCode" id="sc"> <option value="ON_TIME">On Time</option> <option value="LATE">Late</option> </select></td></tr> This works great. But unlike other form controls, radio buttons have a separate field for each value: <tr><th align="right"><label for="???">Activity:</label></th> <td>&#160;</td> <td align="left"><input type="radio" name="es" value="" id="es0" /> Active &#160; <input type="radio" name="es" value="ON_TIME" checked="checked" id="es1" /> Completed on Time &#160; <input type="radio" name="es" value="LATE" id="es2" /> Completed Late &#160; <input type="radio" name="es" value="CANCELED" id="es3" /> Canceled</td> </tr> What to do?

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• Call Mono C# Compiler

  - by Lennie

  Hi, For calling MS C# compiler there is CSharpCodeProvider (http://msdn.microsoft.com/en-us/library/microsoft.csharp.csharpcodeprovider.aspx) but how do I call the Mono compiler? I want to know if there was any errors after compilation.

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• Remove and split data into multiple columns in select statement.

  - by Muhammad Kashif Nadeem

  I have data like following table I want to remove Titles ( Mr. Miss, Dr etc) from name and want to split data into First name and last name if two names exists. I want this in select statement. I can remove title using CASE statement but unable to split name into tow in same case statement. I want data like this but in select statement, title removed and name splitted.

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• Can you restrict entering an invalid entries with jquery ui autocomplete

  - by oo

  when using the jquery ui autocomplete, i would thought there would be an option to force only valid key entry based on the list. Is there anyway to not allow invalid keys so you can only enter valid items in the list? if my list has (csharp, java, python) i can start typing "abcds . ." and it lets me type it in. I want only valid entries to be allowed.

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• WPF application template not available in Visual Studio 2010

  - by Stuart Helwig

  I have just installed Visual Studio 2010. when I attempt to create a new project in c#, there is no option for a WPF application. There is for Visual Basic. The WPFApplicaton.zip flie does exist in C:\Program Files\Microsoft Visual Studio 10.0\Common7\IDE\ProjectTemplates\CSharp\Windows\1033 What could be wrong here?

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• Equivalent of http://www.cplusplus.com/ for C# .net

  - by David Relihan

  Hi Folks I've read through a lot of the "Learn C# .Net" questions just to see if this question was answered already (directly or indirectly). I program mostly in C++ so I find the website http://www.cplusplus.com/ invaluable and there's rarely a day when it is not open in my browser! However, I'm just wondering is there an C# .Net equivalent that people find themselves constantly referencing? The best I'm aware of is: http://stackoverflow.com http://msdn.microsoft.com/en-us/vcsharp/aa336809.aspx http://www.java2s.com/Tutorial/CSharp/CatalogCSharp.htm Thanks,

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• Excel Automation

  - by sltsta

  Hi All, Does everyone know how to create custom button in the excel that display simple window form in csharp language? For example: A button called "Show" in the excel toolbar that show messagebox pop up.

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• Read all the cell values from a given range in excel

  - by Sathish

  Read all the cell values from a given range in excel in csharp suppose i have range from E2 to E16 i want to read values from cell E2 to E16 please help

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• How to make a simple grafical interface in C# for DCRAW

  - by Espinas.iss

  Hello, i have a problem. I need to make a simple GUI in Visual Studio 2008 using C Sharp that uses a Dave Coffins DCRAW written in C but I don't know how to "connect" dcraw.c (DCRAW source code) file with Csharp... UFRAW is the example of grafical interface that uses dcraw but I can't find it's source code. My application should be very simple: to recognize raw file on digital camera or any disc and uses one interpolatio algorithm on that raw file.

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• Adding menus in WindowActivate Event

  - by Sathish

  I am designing a Shared Add-in for Excel in Csharp and now i am adding the custom menu in OnStartupComplete event but now i want this to be moved to WindowActivate event. I have added the event but it is not firing. Please help me

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• Good examples of .NET (C#) open source projects ported to Java?

  - by JasDev

  I notice several well-known projects in java that were ported to C# .NET. Some examples: Hibernate - NHibernate JUnit -- NUnit Ant -- NAnt Lucene -- Lucene.Net, NLucene iText -- iTextSharp log4j -- log4net Quartz -- Quartz.NET I was curious about the reverse situation: what are the notable .NET projects that have been ported to the java world? I looked at the list of projects at http://csharp-source.net but didn't see any obvious ones.

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• Is there a MergedGradientBrush in wpf?

  - by AKRamkumar

  Suppose I had two brushes. One that was a linear gradient brush that was from Dark to light One was a radial brush that went from Dark to light. How could I merge the brushes so that when I apply them, I can apply both at once. EG Check this: 1) http://www.codeproject.com/KB/vista/WindowsVistaRenderer/VistaRenderer4.gif 2) http://www.codeproject.com/KB/vista/WindowsVistaRenderer/VistaRenderer5.gif How could I (In WPF/XAML) merge both into one gradient and then refer to that? (This is Mr. Menendez's Images from Codeproject)

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