.NET (Core and Framework)

How to call a web service in a Smart Device Project ?

29-Jul-11 6:26

If you have to ask you're in the wrong career. Perhaps something in sales would better suit you.

I know the language. I've read a book. - _Madmatt

Re: creating exe

Abhinav S30-Jul-11 2:26

Abhinav S

30-Jul-11 2:26

You need to invoke the compiler csc.exe.
You can do this via Visual Studio directly by using the Build menu option or via the command line[^].

Too much of heaven can bring you underground
Heaven can always turn around
Too much of heaven, our life is all hell bound
Heaven, the kill that makes no sound

rashmita pal26-Jul-11 19:12

rashmita pal

26-Jul-11 19:12

How to call a web service in a Smart Device Project ?

Re: How to call a web service in a Smart Device Project ?

Eddy Vluggen28-Jul-11 8:39

Eddy Vluggen

28-Jul-11 8:39

There are video's on MSDN that explain the most common tasks[^]. Two of them are examples on calling a webservice.

Bastard Programmer from Hell Suspicious | :suss:

OpenSSL (cpp) .net RSA key exchange

Volker Biermann25-Jul-11 3:38

Volker Biermann

25-Jul-11 3:38

Hello,
I have a problem concerning OpenSSL and dotnet encryption. I would like to transform a RSA public and private key generated by OpenSSL into a dotnet one. This key is then used for further actions. For security reasons the usage of an external keystore or keyfile is not a solution. I have included a small part of an old cpp code I have to use and have marked two lines where I think it is possible to export the keys. The RSA key structure comes from an extenal PKI server. In fact the PKI server delivers an array of public keys for selected users when sending a message. The private key for each user is always stored local. Could one help me?

Thanks a lot for your help
Volker

############## start code ##############

typedef struct _KEY_POINT 
{
                unsigned short size;
                unsigned short key_size;
                unsigned long crc;
                unsigned char key_data[1];
} KEY_POINT, * PKEY_POINT;

unsigned char * encryptRSA( const unsigned char * pSrcBuffer,
                            unsigned long * pBufferSize,
                            const PKEY_POINT pPublicKey)
{
RSA * pRsa = NULL;
// ------------- snip ---------------------------------------------------------
                unsigned char * pPublic_data = pPublicKey->key_data;
                pRsa = d2i_RSAPublicKey(&pRsa, (const unsigned char **)&pPublic_data, pPublicKey->key_size);
// Here chance to export *pRsa as .net public keye e.g. as string (base 64 encoded)
// ------------- snip ---------------------------------------------------------
}

unsigned char * decryptRSA( const unsigned char * pSrcBuffer,
                            unsigned long * pBufferSize,
                            const PKEY_POINT pPrivateKey)
{
RSA * pRsa = NULL;
// ------------- snip ---------------------------------------------------------
                unsigned char * pPublic_data = pPublicKey->key_data;
                pRsa = d2i_RSAPrivateKey(&pRsa, (const unsigned char **)&pPublic_data, pPublicKey->key_size);
// Here chance to export *pRsa as .net private key e.g. as string (base 64 encoded)
// ------------- snip ---------------------------------------------------------
}

############## end code ##############

how to build a hierarchy with binding list.

dessiymartin25-Jul-11 0:27

dessiymartin

25-Jul-11 0:27

Hello,

I am making an application and needs to build a hierarchy with binding list. if anybody knows how to get this, please help.

Re: how to build a hierarchy with binding list.

robertalis26-Jul-11 1:34

robertalis

26-Jul-11 1:34

Hello,

.Net Grid supports various methods of data binding giving programmers a broad choice in application implementation. Generally speaking, data binding is a way to connect graphical components to data sources that greatly simplifies application logic, reduces code volume and greatly improves application quality. Here is the solution of your problem hierarchy with binding list

Source: .Net Runtime 2.0 Error , EventID:5000, Eventtype: clr20r3 P4 mysql.data P5 5.0.7.0,P6 464b5d79,P7 21c,P8 76,P9 mysql.data.mysqlclient.mysql, P10 NIL.

surender.m21-Jul-11 21:01

surender.m

21-Jul-11 21:01

Pls help resolve the issue.

Source: .Net Runtime 2.0 Error
EventID:5000

EventType clr20r3,P1 test.exe,P2 1.0.0.0,P3 .., P4 mysql.data P5 5.0.7.0,P6 464b5d79,P7 21c,P8 76,P9 mysql.data.mysqlclient.mysql, P10 NIL.

Console Application abruptly closing with above error in EventLog.
Not able to find out the cause.

Any help will be appriciated, thanks inadvance.

No Defeat Is Final Until You Stop Trying!.......

CROSSPOST`

Dave Kreskowiak22-Jul-11 8:04

Dave Kreskowiak

22-Jul-11 8:04

Don't post the same question in multiple forums. It just makes it harder to collaborate on answers.

A guide to posting questions on CodeProject[^]

Dave Kreskowiak

Re: Source: .Net Runtime 2.0 Error , EventID:5000, Eventtype: clr20r3 P4 mysql.data P5 5.0.7.0,P6 464b5d79,P7 21c,P8 76,P9 mysql.data.mysqlclient.mysql, P10 NIL.

surender.m27-Jul-11 20:25

surender.m

27-Jul-11 20:25

Resolved issue...

There was mysql dump backup running which caused unhandled exception for .net applications, so applications were closed abruptly.

As the mysql user for .net applications not having enough permissions, they got terminated with unhandled exception[you are not owner of this thread], Now we have provided sufficient permissions for the user and everything is working perfect.

Hope this may help someone who face this issue.

No Defeat Is Final Until You Stop Trying!.......

How can i dynamic increaseTable's Column for RDLC.

ZhiLiangLin18-Jul-11 15:27

ZhiLiangLin

18-Jul-11 15:27

Hi,I want to dynamic increase some column for table of RDLC!i'm not sure how many column in the Table.

Re: How can i dynamic increaseTable's Column for RDLC.

ZhiLiangLin18-Jul-11 23:39

ZhiLiangLin

18-Jul-11 23:39

。。

Pixel Shader

Mehdi Ghiasi14-Jul-11 23:45

Mehdi Ghiasi

14-Jul-11 23:45

Hello,

How to detect if the computer has Pixel Shader? (in VB.NET or C#)

Regards.

Mehdi Ghiasi

DataBindings, BindingContext's, CurrencyManagers etc...

paper6714-Jul-11 5:19

paper67

14-Jul-11 5:19

Just curious. I have a master form with a DataGridView on it showing me the records of a DataTable. The same form also holds 3 buttons. (An "Insert", "Update" and "Delete" button).
Clicking "Insert" I do :

CustomerForm Form = new CustomerForm(m_CustomerDT.NewCustomerRow());
:
if (Form.ShowDialog() == DialogResult.OK)
m_CustomerDT.AddCustomerRow(Form.CustomerRow);

Clicking "Update" I do :

CustomerForm Form = new CustomerForm(m_CustomerDT[DataGrdVw.SelectedRows[0].Index]);
:
Form.ShowDialog();

In the CustomerForm_Load handler I initialize my CustomerForm controls like :

if (!m_CustomerRow.IsNull("LastName"))
{
LastNameTxtBx.Text = m_CustomerRow.LastName;
:
}

In the OKButton_Click handler I do the opposite, saving the values back in the DataRow.

Everything works fine that way, but is it the correct way to go ??
Shouldn't I use DataBindings, BindingContext's, CurrencyManagers etc ... If so, why and how should that translate for my context ?

Re: DataBindings, BindingContext's, CurrencyManagers etc...

RobCroll26-Jul-11 19:02

RobCroll

26-Jul-11 19:02

I'd say in a Windows Forms project that is perfectly acceptable and gives you the control you need to validate the data entered.

In WPF however you really want to take advantage of the binding model within WPF and MVVM.

I have heard that people are successfully implementing MVVM in Windows Forms which would be a nice way to go.

"You get that on the big jobs."

Can I derive a new chart control from MSChart?

spainchaud12-Jul-11 5:11

12-Jul-11 5:11

I am developing a numerical modeling package for Geophysical applications, and need a well log chart control. I have tried using MSChart, but it does not even come close to the look of a well log. I know of at least one commercial product, but the license fees are prohibitive.

As an example, a typical well log has a logarithmic Y axis from 0.2 - 2000, with major ticks at 1, 10 100, and 1000. If I use MSChart my major ticks are on 0.2, 2, 200 2000, and the labels read 0.199999999, 1.9999999, etc.

Also in a well log the Y scale is actually part of the legend, with each curve getting is own scale.

There are other differences, so the question is can I derive my own control from MSChart, so I can get more control over the chart behavoir? I have never created a control, so I would need a pointer to some book or tutorial. I got nothing from a google search. Thanks.

Not Active12-Jul-11 5:26

12-Jul-11 5:26

spainchaud wrote:
tried using MSChart, but it does not even come close to the look of a well log.

Given this then why do you want to derive from it? I would say you would be better of creating your own control.

I know the language. I've read a book. - _Madmatt

spainchaud12-Jul-11 7:58

12-Jul-11 7:58

There are several reasons I don't make my own control:

1.) MSChart has a lot of nice functionality I would like to reuse.

2.) It is not in my job decription. If I spend too much time making a chart control I will be looking for a new job. I need to pick my battles carefully, and make sure I can win them quickly. As a scientist, I have some discretion on what I work on, but I must justify it in the end.

Not Active12-Jul-11 9:04

12-Jul-11 9:04

OK, so yes, derive from it and create your own functionality. Use Reflector to explore what it does if necessary and override where needed.

spainchaud wrote:
It is not in my job decription.

Not to be rude, but what the hell are you doing here then?

I know the language. I've read a book. - _Madmatt

spainchaud12-Jul-11 9:50

12-Jul-11 9:50

Learning something, I hope.

Where I work the scientists typically hand poorly written and undocumented Fortran code to the application engineer, and say "it's your problem to make it work".

I am trying to change that by wrapping the Fortran in properly documented and tested C# classes, before the software engineer gets it. Then work with that engineer to integrate my library with his application.

A really good plotting package will help me with my testing. The software engineers get licenses for fancy commercial plotting packages, the scientists have to scrounge around.

Not Active12-Jul-11 10:14

12-Jul-11 10:14

spainchaud wrote:
I am trying to change that by wrapping the Fortran in properly documented and tested C# classes, before the software engineer gets it.

I understand your goal, yet from the perspective of a professional software developer, I would rather the time be spent on improving the process of gather and documenting the requirements. I don't want code from some novice that will most likely be thrown away and never used anyway. You understand the problem you need solved, it is the job of the software engineer to know and use his tools, skills and experience to meet your requirements.

How would you feel if one of the engineers started mucking about in the lab and making suggestions to you on how to do your work?

I know the language. I've read a book. - _Madmatt

spainchaud12-Jul-11 12:42

12-Jul-11 12:42

I does not bother me if they throw my code away, since I know it would be used as a starting point to write even better code, and I would learn from that process. I throw my own code away often, and replace it with better code.

But I know that wont happen. The software engineers were very happy to hear that I was making a library that would be readily integrated into there application, be under source control from the start, and my responsibility to debug. They are also happy to give this novice pointers on design and organization.

The end product will see lots of inflexible undocumented Fortran replaced with a flexible class library in C#. The only Fortran left will be the core Fortran calculations, that very few understand. If the software engineers really wanted to do this job I would have been glad to help define requirements and test their code, but there we no volunteers, except me.

This is also a good project to get me started in C#, after 30 years of Fortran a change of pace is nice.

Abhinav S16-Jul-11 8:19

Abhinav S

16-Jul-11 8:19

spainchaud wrote:
so the question is can I derive my own control from MSChart, s

Yes technically this should be possible to do.
The question for you however would be, how useful would it be for you to do that.

Too much of heaven can bring you underground
Heaven can always turn around
Too much of heaven, our life is all hell bound
Heaven, the kill that makes no sound

spainchaud16-Jul-11 13:38