“HTTP Error 500.19 - Internal Server Error” in IIS 7 / 7.5

by Vivek 12/15/2009 1:15:00 AM

I was testing a simple WCF application deployed on my IIS 7.5 machine. This was working fine on my development Windows 7 IIS 7.5 client machine but as soon as I deployed it on my Windows Server 2008 R2 IIS 7.5 machine the application threw the following error: HTTP Error 500.19 - Internal Server Error The requested page cannot be accessed because the related configuration data for the page is invalid. Here’s what we need to keep in mind. Check the error code 0x80070032. You wi... [More]

Tags: 500.19 - internal server error, 0x80070032

.NET | IIS | IIS 7 | Troubleshooting

Programming “gotcha” when you code for Vista and beyond!

by rahul 2/7/2009 3:37:29 PM

If you blog, and haven’t used any of my plug-ins for Windows Live Writer, may be you should. In this post though, the agenda is not to push you to install the plug-ins but tell you about my experience with Application.StartupPath and how problematic it could be!!! Well, it all started when I decided to write a few plug-ins for my favorite Windows Live Writer. The SDK was easily available, and I found that any new plug-in was required to be installed in the Plug-in folder inside WLW Installation... [More]

Tags: tips and tricks, .net

LINQ Performance - Part 1 - LINQ to Collection

by rahul 1/27/2009 7:18:23 AM

There are multiple benchmarking results already out there for LINQ. The reason why I am doing this again is the because I have heard multiple times that the latest version of LINQ contains a lot of improvements. My current configuration is... Windows Server 2008 Enterprise SP 1Visual Studio 2008 SP14GB RAM System.Core version 3.5.30729.1 In this post, I will take a look at the results ONLY from LINQ to Collection (An array of strings). You can play around with the code and post other findings (... [More]

Tags: .net, linq, performance

.NET | LINQ | Performance

Timepass... Fix the code...

by rahul 1/27/2009 5:10:07 AM

Create a C# Console application, and paste the following code in the Main method... for (int i = 0; i < 5; i++) { //Generating a Random number between 0 and 100000 int intRandomElement; Random r = new Random(); intRandomElement = r.Next(1, 100000); Console.WriteLine(intRandomElement); } If you run this code in debug mode, you should be able to get the output as expected. But if y... [More]

Tags: .net, c#, timepass

.NET | C# | Timepass

Explaining Delegates in C# - Part 7 (Asynchronous Callback - Way 4)

by rahul 1/25/2009 6:55:00 AM

This is the final part of the series that started with... Callback and Multicast delegates Events One more Event Asynchronous Callback - Way 1 - BeginInvoke > EndInvoke Asynchronous Callback - Way 2 - BeginInvoke > AsyncWaitHandle.WaitOne(x) > EndInvoke > AsynWaitHandle.Close() Asynchronous Callback - Way 3 - BeginInvoke > Poll for result's IsCompleted > EndInvoke In this scenario, if we go with the husband-wife-kiddo analogy, I will need to introduce another guy! No no... [More]

Tags: .net, c#, delegates

.NET | C# | Delegates

Explaining Delegates in C# - Part 6 (Asynchronous Callback - Way 3)

by rahul 1/23/2009 9:02:56 AM

By now, I have shown the following usages of delegates... Callback and Multicast delegates Events One more Event Asynchronous Callback - Way 1 - BeginInvoke > EndInvoke Asynchronous Callback - Way 2 - BeginInvoke > AsyncWaitHandle.WaitOne(x) > EndInvoke > AsynWaitHandle.Close() In this part, we will take a look at how you could use polling to figure out if the Asynchronous call is complete. So,... [More]

Tags: .net, c#, delegates

.NET | C# | Delegates

Explaining Delegates in C# - Part 5 (Asynchronous Callback - Way 2)

by rahul 1/22/2009 4:28:21 AM

In this part of making asynchronous programming with delegates, we will talk about a different way, which is a little better than Way 1. In the previous post, it was like a husband telling his wife... You know honey, I have a lot of work to do. Why don't you help me up by doing something that you can do pretty well . In the meantime, I will take care of some other stuff. As soon as I am done, I promise I will pick you up. Notice that, although it looks like a good way of getting the work done, i... [More]

Tags: .net, c#, delegates

.NET | C# | Delegates

Explaining Delegates in C# - Part 4 (Asynchronous Callback - Way 1)

by rahul 1/22/2009 4:25:32 AM

So far, I have discussed about Callback, Multicast delegates, Events using delegates, and yet another example of events using delegates. In this post, I will take this topic one step forward and show you an example of Asynchronous callbacks using delegates. Let's say a client calls a method that takes 40 minutes to complete, how do we communicate with the client? Option 1> Keep showing that busy Cursor for 40 minutes!!! Option 2> Keep updating the clie... [More]

Tags: .net, c#, delegates

.NET | C# | Delegates

Explaining Delegates in C# - Part 3 (Events again)

by rahul 1/20/2009 12:57:14 PM

I was thinking that the previous post on Events and Delegates was quite self-explanatory. A couple of days ago, I received an email which said that may be it is not that good as to explain what I want to achieve in life through that event. So, I thought why not write another post on Delegates and Events to make things clearer from a practical (or may be not so practical, "BUT" just another simple and practical example. There is no harm in trying, after all...) Here is the requirement... You have... [More]

Tags: .net, c#, delegates

.NET | C# | Delegates

A C# Argument Parser for a Windows Console Application

by praveen 1/11/2009 9:01:56 AM

There are a multitude of Argument Parsers available online. So why am I writing my own? Well to be frank… I did a search and couldn’t find anything that would be either “easy” to implement. I know that this is not much, but hope other programmers might find this useful if they are as lazy as I am and looking for a quick solution :-) I was actually looking for a parser which would return something like a Hashtable which i can loop through and load the values into properties of some sort. So here... [More]

Tags: console application, argument parser, c#

.NET | C# | Tips and Tricks | Code Snippet

“HTTP Error 500.19 - Internal Server Error” in IIS 7 / 7.5

Programming “gotcha” when you code for Vista and beyond!

LINQ Performance - Part 1 - LINQ to Collection

Timepass... Fix the code...

Explaining Delegates in C# - Part 7 (Asynchronous Callback - Way 4)

Explaining Delegates in C# - Part 6 (Asynchronous Callback - Way 3)

Explaining Delegates in C# - Part 5 (Asynchronous Callback - Way 2)

Explaining Delegates in C# - Part 4 (Asynchronous Callback - Way 1)

Explaining Delegates in C# - Part 3 (Events again)

A C# Argument Parser for a Windows Console Application

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