Re: Serialization - C# Discussion Boards

Re: host application and add-in application

mav.northwind4-Jun-08 20:21

4-Jun-08 20:21

Hi!
I think you're using the wrong approach. Shared Add-ins are meant to be used in MS Office Applications _only_.
If you want your application to act as a plugin host, you'll have to design it explicitely to do so.

Try searching CP, there are several articles about the subject (although I don't know if there are any in MC++, but the concepts are the same regardless of programming language).

Regards,
mav

--
Black holes are the places where God divided by 0...

DataSet Fill

mehrdadc484-Jun-08 11:09

mehrdadc48

4-Jun-08 11:09

Hi,
I create a dataset by Add New Item -> DataSet to my project, and add a tableAdapter to it.
Then I used this dataset as a dataSource of a report (crystalReport).
When I Get 'Preview data' in dataset, I see my records, but when running the application my report is empty.
I think I must Fill dataset by some code, is it true? how can do it? or problem is other thing?

Best wishes

Re: DataSet Fill

Christian Graus4-Jun-08 11:16

Christian Graus

4-Jun-08 11:16

I would recommend avoiding all those 'Add New Item->Dataset' and tableAdapter options, if you write actual code, you get a lot more control.

Christian Graus

Please read this if you don't understand the answer I've given you

"also I don't think "TranslateOneToTwoBillion OneHundredAndFortySevenMillion FourHundredAndEightyThreeThousand SixHundredAndFortySeven()" is a very good choice for a function name" - SpacixOne ( offering help to someone who really needed it ) ( spaces added for the benefit of people running at < 1280x1024 )

Re: DataSet Fill

PIEBALDconsult4-Jun-08 12:40

PIEBALDconsult

4-Jun-08 12:40

I'll second that. If it's not visible on the form don't add it with the designer.

Of course, I also don't use DataAdapters/TableAdapters or DataSets anyway.

Serialization [modified]

netJP12L4-Jun-08 10:50

netJP12L

4-Jun-08 10:50

I remember during the class lecture my teacher said whenever you are trasferring an object through wire make that object as a Serialized. I have seen example how to make a class serialized in class and online. But i have 2 questions.

1 But why do we need to make it and why can't i just send an object and the receiving function write
whatever the object contains? Currently i am writing to a file without any seriazation i don't have any problems.

2. In xmlSerialzation how can i update only specific elements and it's sub elements rather than re-writing the entire object which may have so many elements? i.e I do'nt want to write the entire object just the changed data to be written again.

I know I have to search for that speicfic node and then write but any example shall help me alot.

Thanks

modified on Wednesday, June 4, 2008 4:57 PM

Re: Serialization

Christian Graus4-Jun-08 11:00

Christian Graus

4-Jun-08 11:00

1 - Serialisation automates the process of representing the contents of a class as text. If you have another way of doing that, it's going to work just the same, so long as the code on both ends knows how to deal with the stream.

2 - how do you mean, exactly ?

Re: Serialization

netJP12L4-Jun-08 11:17

netJP12L

4-Jun-08 11:17

Thanks for answering but...

1. How one can utilize the benefit of represting the contents of a class as text? What about an image in xml file can that be converted to a readable text format.

2. Lets say a parent object that has many different types of child objects are written to a xml file. When a child object is changed only that to be rewritten to the xml file. I don't want to rewrite the entire parent object so i can have quick save functionality.

Re: Serialization

Christian Graus4-Jun-08 11:28

Christian Graus

4-Jun-08 11:28

netJP12L wrote:
What about an image in xml file can that be converted to a readable text format.

Not really

netJP12L wrote:
Lets say a parent object that has many different types of child objects are written to a xml file. When a child object is changed only that to be rewritten to the xml file. I don't want to rewrite the entire parent object so i can have quick save functionality.

OK, you have to write the entire file, but you could write code to manage what you're describing, I think. You'd have to cache the serialised text, serialisation by default does not do that. You'd also have to track changes to know which bits to recreate.

Re: Serialization

PIEBALDconsult4-Jun-08 12:45

PIEBALDconsult

4-Jun-08 12:45

netJP12L wrote:
trasferring an object through wire

I expect that doesn't include files.

You don't need to, but it may be good practice for when you do need to.

Also, I would always write custom serialization; the automated serialization is generally too limited.

How can I get the user session ID/Token?

MeNot4-Jun-08 8:55

MeNot

4-Jun-08 8:55

Hi
I need to take the user session ID number (maybe is called session token or SID) in my windows C# application, it is a unique number per session, same user different sessions should have different numbers. I tried a lot of ways (almost everything from win32) without success....

Re: How can I get the user session ID/Token?

Gareth H4-Jun-08 9:03

Gareth H

4-Jun-08 9:03

MeNot,

I am guessing you're talking ASP.NET. This?[^]

Regards,
Gareth.

(FKA gareth111)

Re: How can I get the user session ID/Token?

MeNot4-Jun-08 9:51

MeNot

4-Jun-08 9:51

No, it's windows application, every windows session has a ID (if I am sure).
My problem is that I log the user in a service (in another machine) using just his user id, but if he restart his machine I should be able to log him again, and for this I need an information about his session at windows.

cast object[] as Type[] ?

FocusedWolf4-Jun-08 8:12

FocusedWolf

4-Jun-08 8:12

Hi, i'm trying to write a function where i can do this:

private bool ParameterCheck(Type[] expected, object[] actual)
        {
            if (actual.Length != expected.Length)
                return false;

            for (int i = 0; i < actual.Length; i++)
            {  
                if(actual[i] as expected[i] == null) //vs won't let me do this
                    return false;
            }

            return true;
        }

The goal is to check if a object array is the same length and same type as some expected parameters.

Re: cast object[] as Type[] ?

Judah Gabriel Himango4-Jun-08 8:21

Judah Gabriel Himango

4-Jun-08 8:21

FocusedWolf wrote:
if(actual[i] as expected[i] == null)

if (actual[i].GetType() != expected[i])

Life, family, faith: Give me a visit.

From my latest post: "How differently the psalmist saw it! How blessed -- how truly happy with real joy! -- is the man who delights in the Law of the Lord."

Judah Himango

Re: cast object[] as Type[] ?

leppie4-Jun-08 11:09

leppie

4-Jun-08 11:09

Oops, wrong answer, see mine Smile | :)

xacc.ide - now with TabsToSpaces support
IronScheme - 1.0 alpha 4a out now (29 May 2008)

Re: cast object[] as Type[] ?

User of Users Group4-Jun-08 11:31

User of Users Group

4-Jun-08 11:31

I see them both wrong, see another one Smile | :)

Re: cast object[] as Type[] ?

leppie4-Jun-08 11:58

leppie

4-Jun-08 11:58

You could, but them the method would not be called paramatercheck.

xacc.ide - now with TabsToSpaces support
IronScheme - 1.0 alpha 4a out now (29 May 2008)

Re: cast object[] as Type[] ?

Judah Gabriel Himango4-Jun-08 12:00

Judah Gabriel Himango

4-Jun-08 12:00

Bah, well, I made his code compile, didn't fix his problems. Call me an ugly patcher. Wink | ;)

Re: cast object[] as Type[] ?

leppie4-Jun-08 11:11

leppie

4-Jun-08 11:11

Look at Type.IsInstanceOfType()

xacc.ide - now with TabsToSpaces support
IronScheme - 1.0 alpha 4a out now (29 May 2008)

Re: cast object[] as Type[] ?

User of Users Group4-Jun-08 11:30

User of Users Group

4-Jun-08 11:30

Brilliance.

You would have thought that runtime would let you call the method and catch the exception

Smile | :)

(no language in the world should allow for that scenario)

help me [modified]

Member 36339924-Jun-08 7:50

Member 3633992

4-Jun-08 7:50

can any one help me. i am new to c# and i have to make an online timetable schedular using round robin algorithm. plz can any one help me in this plz plz this is my final project plz help me

modified on Wednesday, June 4, 2008 1:56 PM

Re: help me

Wes Aday4-Jun-08 8:22

Wes Aday

4-Jun-08 8:22

Member 3633992 wrote:
my final project

Oh I hope you have a flame retardant suit.....

Why is common sense not common?
Never argue with an idiot. They will drag you down to their level where they are an expert.
Sometimes it takes a lot of work to be lazy
Individuality is fine, as long as we do it together - F. Burns

Re: help me

carbon_golem4-Jun-08 8:22

carbon_golem

4-Jun-08 8:22

//Changelog:
//4/25/2008
// -Original post by SpacixOne
//4/30/2008 
// -Updated Exception handler from Greeeg's suggestion.
// -Changed to more appropriate namespace
using System;
using System.Collections.Generic;
using System.Text;
using System.Net;
using System.IO;

namespace NeedsCode
{
    class Program
    {
        static void Main(string[] args)
        {
            throw new NotImplementedException("The program code needs to be implemented.");
        }
    }
}

“It is practically impossible to teach good programming to students that have had a prior exposure to BASIC: as potential programmers they are mentally mutilated beyond hope of regeneration.”
-Edsger Dijkstra