The Big Programming Thread - Page 200

On November 22 2012 10:09 Craton wrote:
I'm having issues with deserializing some json with C#.

Suppose this is a snippet of the json I'm being sent (repeated many times, but nothing else other than id/name):

[
    {
  	"id":0,
	"name":"N/A"
    },
    {
        "id":1,            
        "name":"Annie"            
    },
    {
        "id":2,            
        "name":"Olaf"            
    }    
]

If the top level was named, I'd do something like

    [DataContract]
    public class ChampList
    {
        [DataMember(Name = "SOMENAME")]
        public ElophantChamp[] ElophantChamps { get; set; }
    }

    [DataContract]
    public class ElophantChamp
    {
        [DataMember(Name = "id")]
        public int ID { get; set; }

        [DataMember(Name = "name")]
        public string Name { get; set; }

    }

and then deserialize it by calling this:

HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
HttpWebResponse response = (HttpWebResponse)request.GetResponse();

DataContractJsonSerializer jsonSerializer = new DataContractJsonSerializer(typeof(ChampList));
object objResponse = jsonSerializer.ReadObject(response.GetResponseStream());
ChampList jsonResults = objResponse as ChampList;

But in the case where there is no top level container object and I can't have blank datamember name, what do I do? I just get a null value if I leave the DataMember unnamed (i.e. leave it as [DataMember])

On November 22 2012 14:53 Craton wrote:
I wouldn't have to grumble over non-answers if they were actual answers.

It took three posts just to force an angry reply out of you that what I'm using MIGHT not be able to do what I want. Instead, you got up on your "look at how great this thing I prefer is, change all your code to suit my personal preference" why? "because I personally feel the thing you're using is shit, but I'm not going to bother actually trying to help you"

If you don't want people getting "uppity," then provide actual answers. Exponentially so when I came out and explicitly said all I want to know is what I have to tweak and then got the exact same kind of non-answer.

On November 22 2012 15:08 Datz2Ez wrote:
Hi TL programmers.

I have a big project in mind and I didn't know who I should turn to to ask questions about "where to start". Here is a short intro of me.

I am a 22 years old man that finish CEGEP in web programming / design (CEGEP is between university and high school). I just started university in computer engineer. I have a good project in mind however I need a low level language to achieve my goal.

After some research, I found out that C++ was the way to go. So I took a 10h tutorial on Lynda.com but that didn't really help me. It was more about what are types, how to declare a functions, and what a statement is. So i kept reading tutorials doing quiz here and there. The more I get into C++ the more loss i get. I feel like there is so much to know at the same time. So many way to acheive an objective and I'm never sure about what is the most effective way to handle my problem.

So basically i need some help about either a great book or so clever example to help me master all the native method that C++ offers.

On November 22 2012 15:08 Datz2Ez wrote:
Hi TL programmers.

+ Show Spoiler [rest of post] +

On November 22 2012 15:47 phar wrote:
Learning to assume that other people are right and working back through their logic instead of assuming that I'm right and trying to go from there has been the most valuable thing I've learned so far working in software development. Time and time again it has gotten me to quicker, cleaner, and easier to extend solutions, simply by taking the effort to figure out exactly why what someone was recommending is a good idea (or if it turns out to be a shitty idea, making absolutely sure it is). Even if that means re-writing something I just spent 60+ hours on. Really does suck when it comes down to that, but it's almost always just my fault for not fully figuring out the design and not enough talking with other people before I dove into coding.

On November 22 2012 16:10 Fyodor wrote:
Stroustrup's book is really outdated right now I think. Covers only C++98 which means you're learning some obsolete/deprecated things, missing important features. New edition in feb. though.

On November 22 2012 16:09 Craton wrote:

I agree. As an example, I've rewritten my current program twice for the sake of learning and improving and have plans to do it again in the future. I think new developers find that just about everyone has spent time writing and rewriting large amounts of code, if not entire programs from scratch just for the sake of figuring things out and getting better.

I would definitely never assume others are right, though. That's always a disaster waiting to happen. You should take what anyone says with a many grains of salt and do more research on it.

Connecting to the earlier conversation, though, I'll point out that using one library vs another doesn't really teach you much, even though it can take significant amounts of time to recode. I certainly agree that it's worth being familiar with the different solutions, just budget your time on areas where you actually need improvements (be it for performance, maintainability, shoring up ignorance, etc.)

On November 22 2012 18:38 zatic wrote:
My current approach is to dynamically add event listeners to all generated form elements. They would change a global variable on the change event. The autosave function would check if that variable has been changed before submitting.

Does this sound good? I vaguely remember that "change" doesn't capture all changes for all form elements. I might be wrong (or maybe it's only in IE?). Does it fire for changes on the value that are done by Javascript and not user interaction? Also needs IE < 9 compatibility so I am aware I need to write some of the code twice.

On November 22 2012 18:38 zatic wrote:
Hey guys, maybe you can give me some ideas how to approach this:

I have a black box backend system that dynamically generates HTML forms. As far as I can tell it's J2EE with Struts 1. I have access to the JSP files, but I am asked to change as little as possible.

The generated forms have an auto-save functionality (all in Javascript) that basically just invokes a struts action to save the form in regular intervals. The change they want is to only trigger the auto-save when there has actually been a change since the last auto-save.

Ideally I would do this all in newly introduced Javascript, with only a few lines changed in the existing auto-save Javascript functionality.

My current approach is to dynamically add event listeners to all generated form elements. They would change a global variable on the change event. The autosave function would check if that variable has been changed before submitting.

Does this sound good? I vaguely remember that "change" doesn't capture all changes for all form elements. I might be wrong (or maybe it's only in IE?). Does it fire for changes on the value that are done by Javascript and not user interaction? Also needs IE < 9 compatibility so I am aware I need to write some of the code twice.

On November 22 2012 18:38 zatic wrote:
Hey guys, maybe you can give me some ideas how to approach this:

I have a black box backend system that dynamically generates HTML forms. As far as I can tell it's J2EE with Struts 1. I have access to the JSP files, but I am asked to change as little as possible.

The generated forms have an auto-save functionality (all in Javascript) that basically just invokes a struts action to save the form in regular intervals. The change they want is to only trigger the auto-save when there has actually been a change since the last auto-save.

Ideally I would do this all in newly introduced Javascript, with only a few lines changed in the existing auto-save Javascript functionality.

My current approach is to dynamically add event listeners to all generated form elements. They would change a global variable on the change event. The autosave function would check if that variable has been changed before submitting.

Does this sound good? I vaguely remember that "change" doesn't capture all changes for all form elements. I might be wrong (or maybe it's only in IE?). Does it fire for changes on the value that are done by Javascript and not user interaction? Also needs IE < 9 compatibility so I am aware I need to write some of the code twice.

On November 22 2012 16:09 Craton wrote:I would definitely never assume others are right, though. That's always a disaster waiting to happen. You should take what anyone says with a many grains of salt and do more research on it.