SSL sockets - C# Discussion Boards

Re: SerializationException With DataTable

Wender Oliveira23-Aug-05 4:48

23-Aug-05 4:48

Sebastian, thanks for your attention

First it throws an exception about Serializable Attribute not found, so, I marked all my datatable classes as [Serializable()]. Then, I tried again and got that exception. I tried to reimplement ISerializable interface but I didn't understande how to do this.

Wender Oliveira
.NET Programmer

Re: SerializationException With DataTable

miah alom23-Aug-05 4:39

miah alom

23-Aug-05 4:39

If you are deriving from the DataTable class, then you must add the following code

protected MyDataTable(SerializationInfo info, StreamingContext context):base(info, context)
{
}

Re: SerializationException With DataTable

Wender Oliveira23-Aug-05 7:23

Wender Oliveira

23-Aug-05 7:23

Thanks, I didn't try but it seems to work.

I did an workaround and now works... Smile | :)

Tks...

Wender Oliveira
.NET Programmer

DirectX getting bogged down with nothin to do? - C#

YawgmothIII23-Aug-05 3:41

YawgmothIII

23-Aug-05 3:41

Hello,

I've been programming a C# game engine, mainly just for fun and learning purposes. The project is going very well and i've learned alot seeing as this is my first time working with DirectX, but even though the project is going well i continuously run into the same problem.

I'm building my Engines around the idea of an RTS game and i have 3 seperate engines. The Game Engine(master) and then 2 lower engines the Sprite Engine(DirectDraw) and my Object Engine(Manages Units).

Since i'm still testing things there are times when there are no units on the screen. If this happens and i don't have any debug information being drawn then it begins to lag extremely. Its obviously hard to tell whats going on because it only does it when theres a blank white screen displayed, but i first noticed it in how laggy the responses are in the keyboard.

I'm at a total loss as to why giving DirectX nothing to do would lag my program? any ideas?

Heres a segment of my code from the Sprite engine that actually draws stuff on the screen:

back.ColorFill(Color.White);<br />
				// Draw the Object to the back buffer using source copy blit<br />
				<br />
				for (int i=0; i <= AnimQPt; i++)<br />
				{<br />
					for (int z=0; z <= AnimQ[i].spriteCluster.TotalSprites; z++)<br />
					{<br />
						back.DrawFast(AnimQ[i].spriteCluster.sprites[z].point.X, AnimQ[i].spriteCluster.sprites[z].point.Y, Models[AnimQ[i].intModelID].Sprites[AnimQ[i].spriteCluster.sprites[z].SpriteID].SpriteSurface, AnimQ[i].spriteCluster.sprites[z].rectangle, DrawFastFlags.SourceColorKey);<br />
					}<br />
				}<br />
				if (bObjectNumDisplay)<br />
				{<br />
					for (int i=0; i <= AnimQPt; i++)<br />
					{<br />
						back.DrawText(AnimQ[i].pointDisplay.X, AnimQ[i].pointDisplay.Y, AnimQ[i].intUnitID.ToString("N0"), false);<br />
					}<br />
					back.DrawText(10, 10,"ScreenWidth = " +Screen.Width.ToString()+ "  ScreenHeight = " +Screen.Height.ToString()+ "  XPos = " +AnimQ[0].pointDisplay.X +"  YPos = " +AnimQ[0].pointDisplay.Y +"  Current Point = " +this.AnimQ[0].spriteCluster.sprites[0].rectangle.ToString() + " ElapsedTime = " +this.AnimQ[0].pointDisplay.ToString(), false);<br />
				}

The variable AnimQPt would normally be -1 if there are no units on the screen.

Re: DirectX getting bogged down with nothin to do? - C#

Judah Gabriel Himango23-Aug-05 5:15

Judah Gabriel Himango

23-Aug-05 5:15

How are you rendering the scene - a OnPaint->Invalidate() call (thus making OnPaint be called over and over again)? If so, that could be a cause of your problems; doing OnPaint and Invalidate is extremely inefficient, lots of overhead. It wasn't meant to be used in this manner.

Check out Managed DirectX creator Tom Miller's blog posting here[^] regarding the best, most efficient way to render your scene.

The other possibility is that you're doing something too heavy; too many allocations, too much drawing to the screen, too many garbage collections going on. It's tough to say without a knowledge of the codebase.

Tech, life, family, faith: Give me a visit.
I'm currently blogging about: Who is Jewish, the Trivia Game!
Judah Himango

No templates in C#

Tomerland23-Aug-05 2:49

Tomerland

23-Aug-05 2:49

Dear Gurus,

I have the following problem (reduced from more complicated stuff):

I want to process different types of data in a class (in the example I simply store the data).

The problem here (in C#) to my best understanding is, that I have to write an extra function for each data-type. This can be much more easily managed in C++ via Templates.

How do I manage such a problem in C#?

Class-Example:

   public class Action    {<br />
<br />
        public void storeValue(int    i)   {  m_intValue    = i;   }<br />
        public void storeValue(char   c)   {  m_charValue   = c;   }<br />
        public void storeValue(double d)   {  m_doubleValue = d;   }<br />
<br />
        private     int     m_intValue;<br />
                    char    m_charValue;<br />
                    double  m_doubleValue;<br />
    }

Thank you for your help

Re: No templates in C#

mav.northwind23-Aug-05 3:11

mav.northwind

23-Aug-05 3:11

Hi!

Either you use .NET 2.0, where a template system is supported, or you use public void storeValue(object o) and sacrifice type-safety.

Nevertheless, you can query the real type of the object passed to your function using the typeof or is operators.

Regards,
mav

SSL sockets

g00fyman23-Aug-05 2:45

g00fyman

23-Aug-05 2:45

hi to all,

how do i go about implementing remoting using SSL sockets?. i have googled for SSL sockets + C# and im getting alot of middleware and 3rd aprty products. is it possible without these, or is it just harder Smile | :)

links to learn from would be good, or msdn docs too.

kind regards,
g00fy

Ethical axioms are found and tested not very differently from the axioms of science. Truth is what stands the test of experience.
Albert Einstein

Re: SSL sockets

Werdna23-Aug-05 6:32

Werdna

23-Aug-05 6:32

.net 2 has support for ssl streams (SslStream class)
in 1.1 you have to use 3rd party products.

If you need more info, look at http://lab.msdn.microsoft.com/productfeedback/viewfeedback.aspx?feedbackid=d772e3b3-2697-43b9-a1bd-d05ffd74f685[^]
and then scroll to attachments.

Re: SSL sockets

g00fyman23-Aug-05 13:25

g00fyman

23-Aug-05 13:25

thank you kindly

g00fy Smile | :)

how to zip and unzip folder through c#

mkani23-Aug-05 1:58

mkani

23-Aug-05 1:58

hi i am mukesh
i want zip and folder through coding zip on client and unzip on server

mukesh

Re: how to zip and unzip folder through c#

Frank Kerrigan23-Aug-05 2:09

Frank Kerrigan

23-Aug-05 2:09

Use DOS/cmd scripts with WIPZIP

Re: how to zip and unzip folder through c#

Bojan Rajkovic23-Aug-05 8:45

Bojan Rajkovic

23-Aug-05 8:45

Use #ziplib from ICSharpCode...
http://www.icsharpcode.net/OpenSource/SharpZipLib/Default.aspx[^]

Re: how to zip and unzip folder through c#

Anonymous26-Aug-05 7:21

Anonymous

26-Aug-05 7:21

You can use the zip libraries through J#. I did this a while back, but I completely forget the details. I don't remember whether I wrote that part in J# and exposed it to C#, or whether it was directly accessible from C#. Now I'm being too lazy to go look it up for you, but this should get you going in the right direction... You can always post back more questions if you need more help.

What type of project in c# .net

dabuskol23-Aug-05 0:50

dabuskol

23-Aug-05 0:50

Guys,

I need to developed a program in C# that runs every midnight and this program will be executed by our server. This will read data from SQL server and send notification to specific person. The question is which Type of project will I be using "Console Application", "Windows application", "Windows Server"????

I tried to use the Console Application but when I tried to execute the sqldataadapter statement it gives me an error <code>"Additional Information: Request for the permission of type System.data.sqlclient.sqlclientpermission,System.Data, Version=1.0.5000 ...</code> but when I run the same sqldataadapeter in WEb project it works perfect.

Please I need the answer ASAP... thanks.

Re: What type of project in c# .net

Frank Kerrigan23-Aug-05 0:56

Frank Kerrigan

23-Aug-05 0:56

How are you connecting in your code, use a SQL server account rather than trusted account as it will be lost once the system service runs the code.
The console app is the righ one to use.

Re: What type of project in c# .net

dabuskol23-Aug-05 1:24

dabuskol

23-Aug-05 1:24

Yes, I am glad I am on the right track. This is how I connect.

SqlConnection objconn = new SqlConnection("server=server1;database=Personnel;uid=person;pwd=person123;");<br />
objconn.Open();<br />
SqlDataAdapter objadap = new SqlDataAdapter(sSelect,objconn);<br />
objadap.Fill(DSEmployee);<br />
objconn.Close();

Does it mean the I will replace the current connection ID with the connection ID/password that I am using in connecting to the sql server?

Thanks for your help.

Re: What type of project in c# .net

Frank Kerrigan23-Aug-05 1:43

Frank Kerrigan

23-Aug-05 1:43

Yes,

you need a connection string like this

SERVER=SQLserver;uid=user;password=pass;DATABASE=Sales

Also you have to go into SQL server enterprise manager and create a SQL Server user (one not based on a domain account) with enough rights on the required database to insert change data etc..

MeasuringString with complete accuracy

Anonymous23-Aug-05 0:31

Anonymous

23-Aug-05 0:31

Dear ones,
I have a specified width, and a long string. I want to know with complete accuracy how much of the string fits in that width for a give font. I have used MeasureString,GenericTypographics, TextRenderingHint etc. But i am not satisfied with the results. Give me any clue,function,API etc that could give the exact string that fits in that specified width.

Re: MeasuringString with complete accuracy

Guffa23-Aug-05 0:46

Guffa

23-Aug-05 0:46

In what way are you not satisfied with the results?

---
b { font-weight: normal; }

Windows Event Log

afterdeath22-Aug-05 22:31

afterdeath

22-Aug-05 22:31

hi,

I create in my application a new custom system log and send all my logs to it. In some cases, the log gets corrupted, and the solution I have is to either clear the log or remove it and create a new one instead.

Is there a way to actually find which entries are invalid and remove them and keep the rest of the entries available for me? Or is it possible to go through the entries, and copy the valid ones to a new log file?

Thanks

Re: Windows Event Log

leppie22-Aug-05 23:21

leppie

22-Aug-05 23:21

afterdeath wrote:
Is there a way to actually find which entries are invalid and remove them and keep the rest of the entries available for me?

I think you better find out what you are doing to get these invalid messages. D'Oh! | :doh:

^{xacc-ide 0.0.15 now with C#, MSIL, C, XML, ASP.NET, Nemerle, MyXaml and HLSL coloring - Screenshots}

Re: Windows Event Log

afterdeath22-Aug-05 23:45

afterdeath

22-Aug-05 23:45

I know what leads to corrupt my log. sometimes a hard shutdown makes my logs corrupt, a system crash can give me that. I'm not looking for a way to prevent it, I'm looking for a way to repair it without clearing or deleting the log.

Re: Windows Event Log

leppie22-Aug-05 23:53

leppie

22-Aug-05 23:53

How are you using the EventLog? Are your sure you dispose of it after every write, or do u keep an instance static? If the latter, thats likely the cause of the problem. Use the static methods to write as they will properly close the eventlog after writing to it.

^{xacc-ide 0.0.15 now with C#, MSIL, C, XML, ASP.NET, Nemerle, MyXaml and HLSL coloring - Screenshots}

Re: Windows Event Log

afterdeath23-Aug-05 1:26

afterdeath

23-Aug-05 1:26

Thanks, this did help in minimising the cause of getting a corrupted log. Smile | :)

And I found on the net an actual way of reparing the corrupted one and/or export the entries to HTML or Excel sheet.

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.