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Re: Client and Server Program 0x3c031-Mar-09 7:02 0x3c0 31-Mar-09 7:02  There's a list of standard ports here, but that doesn't include ports opened by applications which don't follow standards. Your best bet is going with something unlikely, like 65535; alternatively anything over 49151 should work Re: Client and Server Program Vinziee1-Apr-09 0:28 Vinziee 1-Apr-09 0:28  thx i used port 8080 n its working perfectly fine thx for ur help but now there is another problem is it possible to use the same udpclient object for sending as well as recieving data i mean if i create a UDPcleint object like void send() { UDPClient client = new UDPClient(); client.Connect(server, 8080); cleint.send(nedata); } void recieve() { UDPClient client = new UDPClient(); IpEndpoint ip = new IPEndponit(server, 8080) client.Recieve(ref ip) .... } void main() { thread thd_send = new thread(new threadStart(send)); thread thd_send = new thread(new threadStart(recieve)); } } Re: Client and Server Program SeMartens31-Mar-09 9:18 SeMartens 31-Mar-09 9:18  On windows you can use the "netstat"-command. This will list all applications and the ports the occupy. It's not a bug, it's a feature! Check out my CodeProject article Permission-by-aspect. Me in Softwareland. Re: Client and Server Program Vinziee1-Apr-09 0:29 Vinziee 1-Apr-09 0:29  hey thx Sebastian ur soluion worked perfectly fine Re: Client and Server Program musefan31-Mar-09 0:49 musefan 31-Mar-09 0:49  you do know that error messages are not just random characters? mostly they tell you the problem and nearly always you can throw them into google and get an answer that will fix your problem in minutes.. both apply in this case Life goes very fast. Tomorrow, today is already yesterday. Re: Client and Server Program Vinziee31-Mar-09 1:23 Vinziee 31-Mar-09 1:23  hi musefan i tried googling but cudnt find proper ans if u cud help me with the coding then i wud be really grateful to you thx in advance Re: Client and Server Program EliottA31-Mar-09 2:15 EliottA 31-Mar-09 2:15  Text speak dictionary... 'u'='you' 'cud'='could' 'cudnt'='couldn't or couldnt' 'thx'='thanks' 'wud'='would' 'ans'='answer' and my personal favorite 'help me with the coding'='do it, send it to me for free, and I probably will stop trolling until I find something else I'm to lazy to research and fix' Check out the CodeProject forum Guidelines[^] Re: Client and Server Program agent00zelda31-Mar-09 2:30 agent00zelda 31-Mar-09 2:30  I am new to C# so I've been browsing the MSDN libraries to see how to use certain classes. After reading your post, I looked for and found the description of the UdpClient class. http://msdn.microsoft.com/en-us/library/system.net.sockets.udpclient.aspx There are examples on that site, but specifically you need to close your server connection, as the others were telling you. So, somewhere before the user closes the program, you have to call server.Close() I would recommend a finally block in your receive() method and closing the server there. But you would have to define server before the try block for this to work. Re: Client and Server Program Vinziee31-Mar-09 2:35 Vinziee 31-Mar-09 2:35  thx Mia Logan the actual problem lies with the server itself my client sends data properly but when i comes to receving the server throws an ecxception "the port can be used only once" this exception i'll check out msdn documentation of UDPClient as well thx for the advice Rotate and Resize a Rectangle Madmanxxx30-Mar-09 23:34 Madmanxxx 30-Mar-09 23:34  Guys, I need your help here. Appreciate any advice as I am not familiar with matrix. Everyone is asking me to use matrix. I have a rectangle that are draw using the on_paint function. The users can rotate or resize the rectangle. Currently I am using the m_graphics.RotateTransform(node.Angle); If the user DOES NOT rotate and just resize, everything is good. Just like MS Office. But once it is resize, everything when haywire. I am not able to use the mouse coordinate to track the height and width of the rectangle. Anyone can help? Thanks Daniel Re: Rotate and Resize a Rectangle Mustafa Ismail Mustafa30-Mar-09 23:40 Mustafa Ismail Mustafa 30-Mar-09 23:40  [joke] Unfortunately, no one can be told what the Matrix is. You have to see it for yourself. [/joke] Seriously though, what matrix are you talking about? What are you trying to emulate? If the post was helpful, please vote! Why won't the worm just leave me be? Re: Rotate and Resize a Rectangle Madmanxxx30-Mar-09 23:44 Madmanxxx 30-Mar-09 23:44  hahaha...funny... i am talking about system.drawing.drawing2d.matrix Re: Rotate and Resize a Rectangle Mustafa Ismail Mustafa31-Mar-09 0:07 Mustafa Ismail Mustafa 31-Mar-09 0:07  Ah. Then I'll have to retreat now and save face since I'm not one that has dabbled much in the graphics area. Someone ought to be along soon that can give you an answer that will most certainly be better than mine. You could, however, add a better description of your problem. If the post was helpful, please vote! Why won't the worm just leave me be? Re: Rotate and Resize a Rectangle musefan31-Mar-09 0:22 musefan 31-Mar-09 0:22  hmmm... so you can resize correctly? just the rotating you cant get working? i think you will be best posting some of your code for the rotating of the object. Because your post does not help to identify the problem as it is. Life goes very fast. Tomorrow, today is already yesterday. Re: Rotate and Resize a Rectangle Madmanxxx31-Mar-09 0:32 Madmanxxx 31-Mar-09 0:32  This is the snipnet of the code Rect m_rect = new Rectangle(X, Y, Width, Height); Assuming X = 10, Y = 8 W=100 and H=200 I rotate the rectangle at point (X,Y) at 45 degree graphics.TranslateTransform(X,Y); graphics.RotateTransform(angle); The rotation work perfectly. No issue with that. Then I want to resize the rectangle by using the bottom right lower corner. Assuming the right lower corner point is move to (450, 350) How do i redraw the rectangle? thanks Dan Re: Rotate and Resize a Rectangle musefan31-Mar-09 0:45 musefan 31-Mar-09 0:45  Well I assume you are doing all your drawing in a paint event? whenever you make an alteration to an object this paint event will need to be called, you can call the Invalidate() function on a panel for example What you basically need to do if you have not already taken this approach is to have a global collection of objects (shapes that you want to draw etc.) then you iterate though each object and draw it using its propoerties (location, size, color etc.) within the paint event I think one issue with the method you are taking is that you are rotating/resizing the graphics object as a whole, and therefore if you have multiple objects then they will not resize/rotate as they should do if you need to drag a corner of an object you will need to look into collision detection between the cursor and the objects in your collection. Life goes very fast. Tomorrow, today is already yesterday. Re: Rotate and Resize a Rectangle Madmanxxx31-Mar-09 0:54 Madmanxxx 31-Mar-09 0:54  Actually everything is working including I am able to allow the user to drag the corner point. Just that after they drag the point to a new location, I am not able to redraw back the rectangle. I need someway to calculate the height and width based on the new point Re: Rotate and Resize a Rectangle musefan31-Mar-09 1:00 musefan 31-Mar-09 1:00  Ok so you just need to set the Height and Width properties of the object based on the Cursor position - the object positions example.... newHeight = mouseYPos - shape.Location.Y; newWidth = mouseXPos - shape.Location.X; note that the mouse position needs to be relative to the control the shape is drawn on Life goes very fast. Tomorrow, today is already yesterday. Re: Rotate and Resize a Rectangle Madmanxxx31-Mar-09 1:09 Madmanxxx 31-Mar-09 1:09  how to i do "mouse position needs to be relative to the control the shape is drawn on " I did the about, it is working for NON rotate rectangle. But for rotate, everything is off.... Re: Rotate and Resize a Rectangle musefan31-Mar-09 1:15 musefan 31-Mar-09 1:15  well what control are you drawing onto? you take the location of that control in relation to screen, then you subtract its value from the Cursor.Location values. that will give you position relative to the control you are using Life goes very fast. Tomorrow, today is already yesterday. Re: Rotate and Resize a Rectangle Madmanxxx31-Mar-09 21:32 Madmanxxx 31-Mar-09 21:32  i am just drawing it on a white panel. After the rectangle is rotated. due to the rotation angle, i cannot just use the X and Y value of the cursor.location. Re: Rotate and Resize a Rectangle musefan31-Mar-09 21:46 musefan 31-Mar-09 21:46  ahhhhh.... now i think i get your problem. if the rectangle is at a 45 degree angle then you need to be able to stretch/shrink it width ways or height ways. if this is correct then im not sure of the best method to take but initial thoughts would be to first detect which of the four points of the rectangle is furthest to the left, this one will not change, then all the others are moved to the right depending on how much the mouse has changed. then for the height you would move all points except the one furthest to the top. Sorry I cant think to suggest anything else Life goes very fast. Tomorrow, today is already yesterday. Re: Rotate and Resize a Rectangle Madmanxxx31-Mar-09 22:25 Madmanxxx 31-Mar-09 22:25  sob sob... thanks for the assistance thus far. Guys, anyone else can help? I saw an article that someone manage to solve it but the link is no longer valid. http://nopaste.rautemarcel.de/[^] create enum at run time a.hamidy30-Mar-09 23:13 a.hamidy 30-Mar-09 23:13  Dear All, I have a DataTable which has 8 records and it will have more records at later too. the data table has two fields (columns) which is "Id" and "Name". I would like to create enum based on "Name" field and the value of enum based on "Id" field. Is it possible to create enums at run time using c#. Re: create enum at run time musefan30-Mar-09 23:18 musefan 30-Mar-09 23:18  Well how exactly are you hoping to use them? Life goes very fast. Tomorrow, today is already yesterday.

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