C# Discussion Boards - CodeProject

Venkatraj16-May-02 0:31

16-May-02 0:31

How do I authenticate a user account, given the user name, password and domain(if any), using C#? Basically I am trying to avoid duplication of the user database just for this purpose..

Re: NTLM Authentication

Rama Krishna Vavilala16-May-02 14:38

Rama Krishna Vavilala

16-May-02 14:38

There is a classes that you may look at System.Net.NetworkCredential, System.Net.AuthenticationManager. But it works in conjunction with webrequests. See if it might be possible to use it

Otherwise you may need to use LogonUser API.

Running Page_Load Event

Gavin_Mannion15-May-02 23:41

Gavin_Mannion

15-May-02 23:41

Hi All,

I am having an annoying problem that hopefully you can explain to me.
I have some code in my Page_Load event that load previous data into all the textboxes on a form.

I then enter my new data and submit, but for some reason it is clearing all the data in my form before submitting, the only reason that I can come up with is that it is loading the Page_Load event which is populating the form with blanks from my database?

Does this make any sense and can I fix this?

Thanks,
Gavin

Re: Running Page_Load Event

AndyG16-May-02 4:54

AndyG

16-May-02 4:54

try this:

<br />
if(!IsPostBack)<br />
{<br />
     //Populate TextBoxes<br />
}<br />

Andy Gaskell, MCSD MCDBA

Re: Running Page_Load Event

Gavin_Mannion16-May-02 4:58

Gavin_Mannion

16-May-02 4:58

That solves it..

Thanks,

Is there a decent reason on why it is running the Load_Page after I push submit and before the actual submit?

Re: Running Page_Load Event

AndyG16-May-02 8:00

AndyG

16-May-02 8:00

This might help.

Andy Gaskell, MCSD MCDBA

Network connection on remote machine and WMI

KobyBoy15-May-02 12:05

KobyBoy

15-May-02 12:05

Hello All,

Is it possible to find out what kind of connection a remote machine has open ? I need to know both the inbound and outbound connections. Can WMI do to for me ?

-Koby

ResourceManager

15-May-02 10:23

Hi,

How can I iterate the resource file? Like if I want to read all the values from the resource file how can I do it also I want to read in the same order as it is in resource file. Also I want to use the ResourceManager to do that.

Thanks a ton.

BackgroundImage + Centering...

Zombies with Coffee, LLC15-May-02 5:47

Zombies with Coffee, LLC

15-May-02 5:47

It's easy to set a background image...

BackgroundImage = ((Bitmap)(resources.GetObject("$this.BackgroundImage")));

But I don't want it tiled. I'd rather have it centered in the middle of the form.

Any thoughts?

Thanks!!

Re: BackgroundImage + Centering...

James T. Johnson15-May-02 8:10

James T. Johnson

15-May-02 8:10

You can draw it yourself through the Paint or PaintBackground event.

protected override OnPaint(PaintEventArgs e)
{
  base.OnPaint(e);
  int x, y;
 
  x = (ClientSize.Width - backgroundImage.Width) / 2;
  y = (ClientSize.Height - backgroundImage.Height) / 2;
 
  e.Graphics.DrawImageUnscaled(backgroundImage, x, y);
}

Where backgroundImage is an Image containing the image you want to draw in the background. You shouldn't also set the BackgroundImage property of the form because it will still tile the image in the background AND draw this one centered in the client area.

James

Simplicity Rules!

Re: BackgroundImage + Centering...

Zombies with Coffee, LLC15-May-02 8:29

Zombies with Coffee, LLC

15-May-02 8:29

Thanks James.

Your method certainly works and perfectly fits the bill, but was trying to think of a very .NETish way of doing it. (Trying to convert from MFC to .NET)

I came up with the idea of putting a PictureBox on the form, then set the image and the propertiesDock=fill and SizeMode=CenterImage and it worked perfectly.

ms word

shmuelt15-May-02 3:10

shmuelt

15-May-02 3:10

can someone give me a code
for handling word (as com object or else)
from c#
i realy need a way to add template, change font and size
i know how to open show each

Re: ms word

SHaroz20-May-02 7:54

SHaroz

20-May-02 7:54

check out this file in the .NET framework:

FrameworkSDK\Samples\Technologies\Interop\Applications\Office\Word\wordApp.cs

If you can't find it, just reply to this message and I'll email it to you.

SetWindowsHookEx

14-May-02 23:41

I'm trying to use SetWindowsHookEx in C# so that I can get APPCOMMAND and KEYBOARD events from any window (not just my thread).
I created a DLL and put SetWindowsHookEx there, and then I'm using DllImport so that I can install hook in C# code.
As I receive events, I send a message to C# code through PostMessage.

The problem is that, even though I'm running SetWindowsHookEx globally, I just get events if my app window is focused. And if I use PostMessage, app runs really slow and almost crashes my machine, even though I have a powerful PC.

Has anyone here tried it before? If so, did you get a good performance? How?

I could do it perfectly in C++, but I need to use it in C#...

Thanks,
-Ricardo

Passing byte array from C# to C++

Ollie14-May-02 22:48

Ollie

14-May-02 22:48

Hi,

Have a little trouble passing a byte array in C# into a C++ implemented web service, the C# code is:-

FileStream fs = new FileStream("c:\\work\\temp\\Waremouse.mp3", FileMode.Open);

BinaryReader Reader = new BinaryReader(fs);
Reader.BaseStream.Seek(0, SeekOrigin.Begin);

long lLength = Reader.BaseStream.Length;
Int32 nLength = System.Convert.ToInt32(lLength);

byte[] bData = Reader.ReadBytes(nLength);
fs.Close();

//**********************************************
//C++ Web Service.......
m_FileServer.UploadFile("Waremouse.mp3", bData);
//**********************************************

The C++ is implement as COM interface as shown below

__interface IFBFileServerService
{
//Uploads a file onto the web server....
[id(1)] HRESULT UploadFile([in] BSTR bstrFileName, [in] byte* bData);
//Downloads a file from the web server...
[id(2)] HRESULT DownloadFile([in] BSTR bstrFileName, [out, retval] byte** bData);

};

The problem is that an exception is thrown in the client application

Cheers for any help
Confused | :confused:

web services provider!

zhoujun14-May-02 19:41

zhoujun

14-May-02 19:41

i download the "screen saver"(screensaver_JTJ.csproj);
and i wonder why it can download the codeproject.com's latest posts.it's code may be like this:

codeProject.LatestBrief latest = new codeProject.LatestBrief();

int nInterval = latest.GetArticleLatestUpdatePeriod();

arArticles.Clear();

codeProject.ArticleBrief[]articles=latest.GetLatestArticleBrief(latest.GetMaxArticleListLength());

TextActor a;

int nText = nTextPos;

Point velocity = new Point(0, -3);

if (null != articles)
foreach (codeProject.ArticleBrief article in articles)
{
if (article != null)
{
a = new TextActor(article.Title);

......
and it has a latest.wsdl file which i think related to it.
i want to know how to do that?i mean if i have a website like codeproject.com,how can i download such things?
any documents or articles that relate to that topic?
thanks in advance!
Confused | :confused:

Re: web services provider!

Ravi Bhavnani14-May-02 19:56

Ravi Bhavnani

14-May-02 19:56

See this article!

/ravi

"There is always one more bug..."
http://www.ravib.com
ravib@ravib.com

Ooops!

Ravi Bhavnani14-May-02 20:00

Ravi Bhavnani

14-May-02 20:00

Sorry, I was too hasty in posting my reply. You'd have to convert my MFC code to C#.

/ravi

"There is always one more bug..."
http://www.ravib.com
ravib@ravib.com

Re: Ooops!

Nish Nishant14-May-02 20:13