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Create, Update and HTTP Idempotence For developers building REST-based APIs, there is a great deal of misinformation and some understandable confusion about when to use HTTP PUT and when to use HTTP POST. Some say, POST should be used to create a resource, and PUT to modify one. Others that PUT should be used to create, and POST to modify one. Neither is quite right. Often, developers think of each HTTP method as a 1:1 relationship with CRUD operations: CRUD       HTTPCreate      POSTRead         GETUpdate     PUTDelete      DELETE This can be true, with…

I prefer to use FileZilla FTP Server above the traditional IIS FTP module. FileZilla comes with a lite and lean GUI, great logging tools, connection (speed)limits and more. If you do not know FileZilla Server or the Filezilla Client I strongly encourage you to try them out at https://filezilla-project.org/ Setting up the FileZilla Server is straightforward, but after configuration the user/groups and directory you can have some trouble setting up the Windows Server 2012 Firewall. Traditional FTP uses port 21, you should open this on your Firewall (see below) but…

Here’s a short tutorial on how to use log4net in C# 1. Get log4net from the apache website or use NuGet to include in your project it   2. Add the Appender section to your app.config. The following code uses a file for the logging: <configuration> <configSections> <section name=”log4net” type=”log4net.Config.Log4NetConfigurationSectionHandler,Log4net”/> </configSections> <log4net> <root> <level value=”DEBUG” /> <appender-ref ref=”LogFileAppender” /> </root> <appender name=”LogFileAppender” type=”log4net.Appender.RollingFileAppender” > <param name=”File” value=”log-file.txt” /> <param name=”AppendToFile” value=”true” /> <rollingStyle value=”Size” /> <maxSizeRollBackups value=”10″ /> <maximumFileSize value=”10MB” /> <staticLogFileName value=”true” /> <layout type=”log4net.Layout.PatternLayout”> <param name=”ConversionPattern” value=”%date [%thread]…

This .Net C# code snippet download image from URL. To use this function simply provide the URL of the image you like to download. This function read the image contents using URL and returns downloaded image as an image object. This function download image using web response stream. /// <summary>/// Function to download Image from website/// </summary>/// <param name=”_URL”>URL address to download image</param>/// <returns>Image</returns>public Image DownloadImage(string _URL){ Image _tmpImage = null; try { // Open a connection System.Net.HttpWebRequest _HttpWebRequest = (System.Net.HttpWebRequest)System.Net.HttpWebRequest.Create(_URL); _HttpWebRequest.AllowWriteStreamBuffering = true; // You can also specify additional…

Step 1. Set the “Language” report properties according to your regional requirements. In my case: “es-MX” Step 2. Use the respective Expression, im have: CDbl(Fields!SALE_PRICE.Value).ToString(“C”) When the report running you have before: and after Background Color If you want that the alternate row in a table will be other color, you have to click on the row on Background Color and insert the following expression: =IIF(RowNumber(“Statements”) Mod 2, “White”, “WhiteSmoke”) Change Language If you can change the language of a report it is necessary that you create a parameter (for…

The introduction of the dynamic keyword in C# 4.0 allows you to do a lot of things you couldn’t do otherwise, but it also makes it easy to forget that C# is still not a dynamic language, so there are limitations. Recently I found myself wanting to whip up a quick test page for something, with a very simple controller action and view. It wasn’t meant to be permanent, so creating a dedicated view model class in the project seemed like overkill. I figured I could just return an anonymous…

We can render the data as a HTML table and then give the content type as application/excel. Excel renders HTML content in proper format. To convert the Data collection to HTML i’m making use of Asp.Net GridView here. Though this is not very Asp.Net MVC way of doing it this serves the purpose. you could write your own methods to convert the data to html format instead of the gridview here. Code Snippet [HttpGet] public void GetExcel() { reviewDataContext rdc = new reviewDataContext(); //Bind the Data to Asp.Net DataGrid -…

If you tried to close a window using javascript window.close() method in IE7, and as you may noticed a message will prompt “The Webpage you are viewing is trying to close the window. Do you want to close this window”. Because of the security enhancements in IE7, you can’t close a window unless it is opened by a script. so the walkaround will be to let the browser thinks that this page is opened using a script then closing the window. below is the implementation. 1- Create a javascript function…

At times you want to accept user input in your web applications by presenting them with a wizard driven user interface. A wizard driven user interface allows you to logically divide and group pieces of information so that user can fill them up easily in step-by-step manner. While creating a wizard is easy in ASP.NET Web Forms applications, you need to implement it yourself in ASP.NET MVC applications. There are more than one approaches to creating a wizard in ASP.NET MVC and this article shows one of them. In Part…

UPDATE: As of jquery.validation version 1.8+ hidden input fields are not validated by default, which means that the wizard form is submitted without client-side validation being performed. The solution is to set the default back to validating everything in the JavaScript section by including the following line; $.validator.setDefaults({ ignore: “” }); I’ve also added a sample project at the bottom of this post.  For small MVC sample application I’m fiddling with on my spare time, I wanted to be able to split my form up in smaller parts, much like…

In default template of asp.net mvc 4.0, Layout.cshtml has following code for menu: <nav> <ul id=”menu”> <li>@Html.ActionLink(“Home”, “Index”, “Home”)</li> <li>@Html.ActionLink(“About”, “About”, “Home”)</li> <li>@Html.ActionLink(“Contact”, “Contact”, “Home”)</li> </ul></nav> Which is hard-coded for all users. We’ll create partial view for menu to reduce complexity. Right click on Shared folder in Views > select Add > click ViewEnter Name: _Menu and set “Create as a partial view” option true > click AddIt’ll open blank cshtml page. Define Menu Items: In normal asp.net webforms app, Sitemap file is used to define structure. Here we’ll define…

The error is: [A]System.Web.WebPages.Razor.Configuration.HostSection cannot be cast to [B]System.Web.WebPages.Razor.Configuration.HostSection. Type A originates from ‘System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35’ in the context ‘Default’ at location ‘C:\windows\Microsoft.Net\assembly\GAC_MSIL\System.Web.WebPages.Razor\v4.0_2.0.0.0__31bf3856ad364e35\System.Web.WebPages.Razor.dll’. Type B originates from ‘System.Web.WebPages.Razor, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35’ in the context ‘Default’ at location ‘C:\Users\e.rossini\AppData\Local\Temp\Temporary ASP.NET Files\root\55c43b6b\aa340995\assembly\dl3\a83c308f\965a638d_c896cf01\System.Web.WebPages.Razor.dll’. Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.InvalidCastException: [A]System.Web.WebPages.Razor.Configuration.HostSection cannot be cast to [B]System.Web.WebPages.Razor.Configuration.HostSection. Type A originates from ‘System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35’ in…

  namespace PSC{ public class Bollettini { public bool getCode(string strCode) { bool rtn = true; if (strCode.Length != 50) { return false; } int first = Convert.ToInt16(strCode.Substring(0, 2)); Bollettino = strCode.Substring(2, first); int second = Convert.ToInt16(strCode.Substring(first + 2, 2)); Contocorrente = strCode.Substring(first + 4, second); int third = Convert.ToInt16(strCode.Substring(first + second + 4, 2)); string tmp = strCode.Substring(first + second + 6, third); Importo = Convert.ToDecimal(tmp) / 100; int fouth = Convert.ToInt16(strCode.Substring(first + second + third + 6, 1)); Codice = strCode.Substring(first + second + third + 7, fouth);…

using System;using System.Text;using Google.GData.Client;using System.Net;using System.Xml;using System.Text.RegularExpressions;namespace BloggerDevSample{ class ConsoleSample { /** Lists the user’s blogs. */ static void ListUserBlogs(Service service) { Console.WriteLine(“\nRetrieving a list of blogs”); FeedQuery query = new FeedQuery(); // Retrieving a list of blogs query.Uri = new Uri(“https://www.blogger.com/feeds/default/blogs”); AtomFeed feed = null; feed = service.Query(query); foreach (AtomEntry entry in feed.Entries) { Console.WriteLine(” Blog title: ” + entry.Title.Text); } } /** Lists the user’s blogs and returns the URI for posting new entries * to the blog which the user selected. */ static Uri SelectUserBlog(Service service) {…

First download and install Google API from here:https://code.google.com/p/google-gdata/downloads/list Add a reference to “Google Data API Core Library”,and use the following function: public static bool AddPost(string title, string bodyHTML, string[] labels) {     Service service = new Service(“blogger”, “<program name>”);     service.Credentials = new GDataCredentials(“<username>”, “<password>”);     AtomEntry newPost = new AtomEntry();     newPost.Title.Text = title;     newPost.Content = new AtomContent();     newPost.Content.Content = bodyHTML;     newPost.Content.Type = “html”;     foreach (string label in labels)     {         AtomCategory cat = new AtomCategory();         cat.Scheme = new Uri(“https://www.blogger.com/atom/ns#”);         cat.Term =…

This article demonstrates how to create / show a lock screen icon that will identify your Windows Phone 8 app on the lock screen. Here are a few quick steps you can follow: Step1. Create a new Windows Phone 8 application project in Visual Studio. Step2. Add a PNG image to your project, that will be displayed on the lock screen. Image requirements: Size: 38 x 38 Type: PNG Colors: The image must contain only white pixels, optionally  with some level of transparency Add a sample icon that meets the…

Live tiles are one of the signature features of Windows Phone and are used to represent your app on the start screen of the phone and give the user quick access to your app. Live tiles also enable apps to show notifications to the user on the home screen and starting with Windows Phone 8 – on the lock screen. While, the Primary (or default) tile appears on the phone’s start screen only when a user pins your application, secondary tiles are created programmatically by the application and multiple such…

In this series of tutorials, we build an entire Contact Management application from start to finish. The Contact Manager application enables you to store contact information – names, phone numbers and email addresses – for a list of people. We build the application over multiple iterations. With each iteration, we gradually improve the application. The goal of this multiple iteration approach is to enable you to understand the reason for each change. Iteration #1 – Create the application. In the first iteration, we create the Contact Manager in the simplest…

Building a Contact Management ASP.NET MVC Application (C#) In this series of tutorials, we build an entire Contact Management application from start to finish. The Contact Manager application enables you to store contact information – names, phone numbers and email addresses – for a list of people. We build the application over multiple iterations. With each iteration, we gradually improve the application. The goal of this multiple iteration approach is to enable you to understand the reason for each change. Iteration #1 – Create the application. In the first iteration,…

I have the following collection / table Category Type Detail CostAuto Hybrid AC 80Auto Hybrid Sunroof 100Auto Standard AC 120Motorcycle Standard Radio 60 Is there a way with linq to get this to pivot to look like this? Category Type AC Radio Sunroof Auto Hybrid 80 0 100 Auto Standard 120 0 0Motorcycle Standard 0 60 0 use the let keyword to generate a key for use with the group by clause like so: var query = from item in list let key = new { Category = item.Category, Type…

The ASP.NET MVC 5 Framework is the latest evolution of Microsoft’s ASP.NET web platform. It provides a high-productivity programming model that promotes cleaner code architecture, test-driven development, and powerful extensibility, combined with all the benefits of ASP.NET. ASP.NET MVC 5 contains a number of advances over previous versions, including the ability to define routes using C# attributes and the ability to override filters. The user experience of building MVC applications has also been substantially improved. The new, more tightly integrated, Visual Studio 2013 IDE has been created specifically with MVC…

The Battery API makes a nice addition to the WP8 SDK. I can see in the near future that some applications will display the battery metrics on a Live Tile or in the application that hides the System Tray. The Battery API is pretty easy to use: Get the Battery instance with Battery.GetDefault() Bind to the event RemainingChargePercentChanged. The battery properties are: RemainingChargePercent: gets a value that indicates the percentage of the charge remaining on the phone’s battery RemainingDischargeTime: gets a value that estimates how much time is left until…