C#, VB.Net, XML and mass consumption of coffee.

First of all, I have to admit that I decided to take a vacation. Vacation from everything – work, freelance, projects, blog, etc. It’s summer and despite the crappy weather here in Toronto, I am spending time with my family which actually rocks. Now vacation is over, let’s get back to coding – today I wanted to continue with Twitter examples. Twitter seems to be very hot, and I was curious as to how to get the most out of it from the coding perspective. Here is a tiny function that gets the followers of a user, providing we know the username and password:

public string FetchFollowers(string userName, string password)
{
using (var client = new WebClient())
{
client.Credentials = new NetworkCredential(userName, password);
try
{
using (var stream = client.OpenRead("http://twitter.com/statuses/followers.xml"))
{
using (var reader = new StreamReader(stream))
{
return reader.ReadToEnd();
}
}
}
catch (WebException ex)
{
//insert code to deal with exception HERE
}
}
return string.Empty;
}

There are two types of “connection” between the people on twitter – followers and friends – I am too lazy to look up the difference between the two, but if you want list of friends then line 8 in the function above should look like this:

using (var stream = client.OpenRead("http://twitter.com/statuses/friends.xml"));

I usually stuff the output of that in XML and then do what I need to do with it.

Let me take a break for now, next time we will cover posting to Twitter (status update).

BTW, first part of this could be found here

Currently I am involved in a project where number of things have to be done using Twitter API. What really amazes me today is the quality of API’s available to developers. Twitter is a perfect example of such API. I will try to publish some code that I used to accomplish several tasks starting with getting the details of a Twitter user providing you are aware of the user password and username.

Following code will retrieve a variety of information about a Twitter account:

public string FetchUserDetailsAsXml(string userName, string password, string IDorScreenName)
{

}


That’s pretty much it. Need System.Net and System.Web for this, obviously. What you get out of that looks like this:

As we can see from above, I am not an avid Twitter user myself, but I find that the API produced by Twitter is extremely well done. In Part 2 and 3 I will cover sending new update and getting followers.

Well, live and learn. This was an interesting day. I am working on a little project right now, can’t really discuss details, and quite frankly it is nothing that I am going to be too proud of once it is done. But this is not the point. I had to do some minor IO work with this and this is when I found that instead of doing stuff like:

try
{
if ((sLineIn = _srCfMCCSV.ReadLine()) == null)
//do stuff here
}catch(){}

I can simply do

File.ReadAllLines();


I guess I was stuck on .Net 1.3 for so long, I completely skipped 2.x and now 3.5 is full of surprises. I know I am behind times, need to catch up soon. Gone to do some reading.

I know that all 1337 hax0rz (sorry, I promise I will not be doing this any more, as a matter of fact it really bugs me when people are using this 1337 crap) are using stuff like Ruby and Python, I know that system programming is for old farts and the future is in web development and all that. I am not disputing this, but there are some cool things you can do with C# and Windows coding. For some bizzare reason, I feel that it might be a good idea to publish some code which I find neat. One of the reasons I like C# is that generally if you need a solution to a particular problem, it is most likely to be alot simpler then what I think. Here is how you get the list of all installed fonts loaded into a ComboBox. Read more…