Re: Problem in DataGrid - C# Discussion Boards

Nish Nishant14-Jan-06 4:35

14-Jan-06 4:35

hellamasta wrote:
Now I'm watching at C++...but your answer is offensive, not all people are expert like you!!!
We are on a forum, so a minimal respect is necessary.

I am sorry if I offended you, but my reply was to a more general audience. Every week, we get questions from people where they want to deploy a managed .NET application on a machine that does not have the .NET framework on it. It clearly indicates that they have begun coding on .NET without getting even a basic understanding of the framework. It's frustrating to think that people would do that. It's like buying a car and beginning to drive on a busy road without understanding the basic traffic rules.

And note, I am no expert, just a guy who codes for a living.

Regards,
Nish

My blog : Nish’s thoughts on MFC, C++/CLI and .NET

Error in XML serialization

Jesper196613-Jan-06 3:08

Jesper1966

13-Jan-06 3:08

I've encountered an error in XML serialization, and was wondering whether any one else had seen the same error (MVS 2003 + .NET 1.1).

The error is: "The was an error reflecting type Example.XMLSerializationError", and occurs when I execute the following code

XmlSerializer xmlSerializer = new XmlSerializer(new XMLSerializationError().GetType());

And the error is caused by the public get property troubleMaker (below), which the serialization should ignore since there is no set method on the property! Uncomment the [XmlIgnore] attribute and no error occurs!

using System;<br />
using System.Collections;<br />
using System.Xml.Serialization;<br />
<br />
namespace Example {<br />
	[XmlRoot()]<br />
	public class XMLSerializationError {<br />
		public XMLSerializationError() {}<br />
<br />
		public int harmlessMember_;<br />
		private Queue troubleMaker_;<br />
<br />
		//[XmlIgnore]<br />
		public Queue troubleMaker {<br />
			get {<br />
				return troubleMaker_;<br />
			}<br />
		}<br />
<br />
<br />
	}<br />
}

Re: Error in XML serialization

Le centriste13-Jan-06 4:27

Le centriste

13-Jan-06 4:27

You need a get/set methods on properties for proper serializations. You get the reflection error because of the absence of the "set" method.

With XmlIgnore, the serialization simply ignores the property, hence you get no error.

--------

"I say no to drugs, but they don't listen."
- Marilyn Manson

Re: Error in XML serialization

Jesper196613-Jan-06 4:52

Jesper1966

13-Jan-06 4:52

Hi Michel,

Thank for the suggestion. But sadly you're mistaken.

Adding a set method isn't necesarry (XML reflection code should ignore the property), but even if I add the set method, the error still occurs.

Jesper

Re: Error in XML serialization

Le centriste13-Jan-06 19:33

Le centriste

13-Jan-06 19:33

Jesper1966 wrote:
But sadly you're mistaken

Unfortunatelay, I am human.

But I am a little surprised. I suggest, as you are already on the path to knowledge, to pursue on this avenue and keep me informed.

Thanks,
Michel

--------

"I say no to drugs, but they don't listen."
- Marilyn Manson

Problem in DataGrid

P. Gnana Prakash13-Jan-06 2:58

P. Gnana Prakash

13-Jan-06 2:58

Hi Friends,

I have used DataGrid in my application. My client requirement is the field change is written to the database as soon as the user navigates away from the field. Please suggest me how to do it.

Regards,
Prakash.

A Journey of thousand miles must begin with a single step.

Re: Problem in DataGrid

Drew McGhie13-Jan-06 5:44

Drew McGhie

13-Jan-06 5:44

Firstly, how are you databinding the data to the datagrid. Secondly, when you say "written to the database", do you mean a local or remote database?

Re: Problem in DataGrid

P. Gnana Prakash13-Jan-06 17:48

P. Gnana Prakash

13-Jan-06 17:48

Hi,

Did you mean how can i associate the data to my Grid ?

I have use thed following code to specify the datasource for my GridControl

DataView curView = ScheduleDataSet.Tables[ScheduleTableName].DefaultView;
curView.AllowEdit = true;
curView.AllowNew = false;
curView.AllowDelete = true;
dataGrid1.DataSource = curView;

So whenever the user modifies the data in the edit field, we have to reflect the changes in assoicated Dataset and the corresponding database also(in this case we have used the database as mysql).

Regards,
Prakash.

A Journey of thousand miles must begin with a single step.

Not a valid Win32 Application

Sharpoverride13-Jan-06 2:06

Sharpoverride

13-Jan-06 2:06

This is the message I keep getting more often the last few weeks..

And I only get it with my .Net Applications ...

The real question is why ?

I've reinstalled my .Net Framework ( 1.1 and 2.0 )

And the error still persisted

I reinstalled windows ( didn't format it ) and I still got it...

Finally I deleted the files and recompiled everything ? It worked... but the debug still gives that error ... Have to mention that this is the first time I ever received the error...

Do you know of any viruses that could cause something like this ? ???

I have a backup of my program ( the one I'm working for about 4 months .. and it's verry big ) Didn't get the message here... so I'm hoping it's a virus that I have at home /??

Does anyone know of any reason for why the message appears when I execute a program written in DotNET ?

Lazar Mihai
Highschool student

Re: Not a valid Win32 Application

André Ziegler13-Jan-06 3:44

André Ziegler

13-Jan-06 3:44

Do you have the right .net framework version installed? x86/amd64 for you processor?

'A programmer is just a tool which converts caffeine into code'

Re: Not a valid Win32 Application

Sharpoverride13-Jan-06 3:53

Sharpoverride

13-Jan-06 3:53

yes... I have the write framework... i wrote the damn think

I should have it.. since I designed it ...

It's framework2.0... anyway ... it's probably a virus... formating should solve it ...

I can't figure out any other solution

Lazar Mihai
Highschool student

Re: Not a valid Win32 Application

mitooki13-Jan-06 4:01

mitooki

13-Jan-06 4:01

Did you write the .NET Framework 2 on your own or get some of your mates to help? Unsure | :~

Re: Not a valid Win32 Application

Sharpoverride13-Jan-06 4:06

Sharpoverride

13-Jan-06 4:06

>... I was talking about .. my program... not the framework but I can see how you could confuse it ... sorry ... Sniff | :^)

Lazar Mihai
Highschool student

Re: Not a valid Win32 Application

Daniel Grunwald13-Jan-06 5:33

Daniel Grunwald

13-Jan-06 5:33

Lazar Mihai ( Sharp Override ) wrote:
Do you know of any viruses that could cause something like this ? ???

I cannot name any specific virus, but I think a lot of them try to attach themselves to .exe files and are not aware that .NET assemblies have a different file format.

Re: Not a valid Win32 Application

Tom Larsen13-Jan-06 6:26

Tom Larsen

13-Jan-06 6:26

What do you mean "execute a program written in DotNET ?"? Did you write this program yourself? What compiler are you using?? Use ildasm first to make sure you have a valid .Net Assembly let alone something that is runable.

Adding table into database

peppepinna13-Jan-06 0:35

peppepinna

13-Jan-06 0:35

Hi all, i have a question: it's possible to fill a dataset with all the tables of my database?

thanx

Re: Adding table into database

MudkiSekhon13-Jan-06 0:52

MudkiSekhon

13-Jan-06 0:52

I think it may be possible. The dataset has Tables collection which stores all the tables that u are storing. U have to test it by using maximum number of tables.

Regards,
Sandy Sekhon

Re: Adding table into database

peppepinna13-Jan-06 1:53

peppepinna

13-Jan-06 1:53

Thanx but i can fill my dataset with select command, and the select command it's possible only at one table.
If i have a database with no tables and i want to adding a table by code i dont know how i can do this.

Regards

Re: Adding table into database

Sharpoverride13-Jan-06 1:50

Sharpoverride

13-Jan-06 1:50

I had the same question a while ago... it's verry simple

you take a command object for example :

OleDbCommand createTable = new OleDbCommand();
createTable.Connection = aValidConnectionObject;
createTable.CommandText = "CREATE TABLE TableName
{
obj varchar(0),

}
";

I'm not sure on the sql part... but that is the main idea.
I have an example written at school .. have to look into it!

Lazar Mihai
Highschool student

zipping and unzipping

pankaj b13-Jan-06 0:27

pankaj b

13-Jan-06 0:27

Hi all,
Can anybody provide me the code for zipping a folder and all its subfolder in a zip file and other utility to unzip any zipped file.

Re: zipping and unzipping

MrEyes13-Jan-06 2:07

MrEyes

13-Jan-06 2:07

You need to look at SharpZipLib which you can find here:

http://www.icsharpcode.net/OpenSource/SharpZipLib/Default.aspx[^]

for pliu_2000

Sasuko12-Jan-06 23:54

Sasuko

12-Jan-06 23:54

referring to this thread [^] :

i use access 2003 and i'm creating a software that uses Access Database (.mdb) jointly the .exe to archive some information.
I don't want to use SQL server or MySQL couse i've not the license and i don't want the user forced to buy one.
So i use Microsoft Access Database that is more elastic and easy.
Now when i got intallation of Access 2003 i don't saw the option JET or Other... so how can decide to install the one more performant Access?
If i decide to use JET with Access 2003, how do i create store procedure within?

Referring to crypted password within webconfig, can you show me some web pages that talk about that?
Vary vary thanks

Marshalling char**

ceno12-Jan-06 23:34

ceno

12-Jan-06 23:34

Hi everybody, I have a problem marshalling char**. Confused | :confused:

It's supposed to be an array of strings, returned by C++ dll function. The function returns structure, which contains several members, and some of them are char**. How to marshall them? Pls. help me with the problem, I'm stuck on it for ages... Cry | :((

Ceno

PrintPreviewDialog question

Stanciu Vlad12-Jan-06 22:44

Stanciu Vlad

12-Jan-06 22:44

Is there possible to customize the text shown into the dialog that displays the page that is beeing printed onto a printPreviewDialog?

protected internal static readonly ... and I wish the list could continue ...

File Access over a UNC

exhaulted12-Jan-06 22:09

exhaulted

12-Jan-06 22:09

Hi folks, anyone know how to access files using a unc name and a fileStream? The user will have to provide the correct login details on a form i have created but i don't know how to create the connection to get at the files.

Cheers

Kev

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