Re: using a dll in my project - C# Discussion Boards

15-May-05 0:43

I have readed this article:
http://www.codeproject.com/cs/miscctrl/AlphaBlendTextBox.asp
it allow to download a dll to implement the custom textbox.
How can i use that dll in my project?
Thanks

MoustafaS15-May-05 1:37

15-May-05 1:37

add arefernce to it in your soulution explorer //if you are using VS.NET.

Anonymous15-May-05 1:50

15-May-05 1:50

can you tell me how? i'm newbie

MoustafaS15-May-05 1:59

15-May-05 1:59

In the solution explorer ,you will find icon called reference ,right click it ,and then click add reference and then browse to your dll .

Anonymous15-May-05 2:05

15-May-05 2:05

ok i've done thanks, but now to use that object inside my form ho can i do?

Anonymous15-May-05 2:12

15-May-05 2:12

i mean to see it in the toolbar, so i can drag in my form when i want how can i do?

MoustafaS15-May-05 2:16

Asynchronous Client/Server messages

15-May-05 2:16

If you were pointing at this from the beginning you wouldn't have the dll added to your project.
Just right click the toolbar and then choose Add/Remove items Link and click on it ,and then browse to your dll and every control contained in it will be added to the toolbox and then by only dragging it to your form the reference to this dll will be added automatically .

methodincharge14-May-05 23:37

methodincharge

14-May-05 23:37

Yet again I am stuck. I've followed many code examples, most of which are wholly different and do not explain the small details I am lacking in my implementation. Basically what has happened is that, using the Async message sending I have implemented, the messages run together and mix data, which is obviously no good. I assumed that the Async BeginSend took care of this, but I guess I was wrong, either that or I did it wrong. The code below is my basic implementation:

<br />
public void SendMessage(String msg) <br />
			{<br />
				try<br />
				{<br />
					if(m_sndCallBack == null) <br />
					{<br />
						m_sndCallBack = new AsyncCallback(OnDataSent);<br />
					}<br />
					SocketPacket packet = new SocketPacket();<br />
					packet.thisSocket = m_clientSocket;<br />
<br />
					packet.dataBuffer = Encoding.UTF8.GetBytes(msg);<br />
<br />
					m_clientSocket.BeginSend(packet.dataBuffer,<br />
						0, packet.dataBuffer.Length,<br />
						SocketFlags.None, <br />
						m_sndCallBack, <br />
						packet);<br />
				}<br />
				catch(SocketException se)<br />
				{<br />
					Debug.WriteLine(se.Message);<br />
				}	<br />
			}<br />
			public void OnDataSent(IAsyncResult asyn)<br />
			{<br />
				SocketPacket theSockId = (SocketPacket)asyn.AsyncState;<br />
				try<br />
				{<br />
					int iRx  = theSockId.thisSocket.EndSend (asyn);<br />
					theSockId.thisSocket = null;<br />
				}<br />
				catch (ObjectDisposedException )<br />
				{<br />
					Debug.WriteLine("Web.OnDataReceived: Socket has been closed");<br />
				}<br />
				catch(SocketException se)<br />
				{<br />
					Debug.WriteLine("Web.OnDataReceived: "+se.Message);<br />
				}<br />
			}<br />

Now my typical calling, which may be the problem? would be:
ClientServer.SendMessage("CONNECT:username:password");
...
ClientServer.SendMessage("REQUEST:STATUS");
ClientServer.SendMessage("REQUEST:LIST");

and the server receives:
CONNECT:username:passwordREQUEST:STATUS...

Am I supposed to be waiting on the data to be sent? And if so, should I not even implement the sending using Async code? Any help would be greatly appreciated.

S. Senthil Kumar15-May-05 2:53

S. Senthil Kumar

15-May-05 2:53

If your protocol demands that messages must be sent in a particular order, then you shouldn't use BeginSend. Each BeginSend will use a threadpool thread to run, so there is no guarantee as to the order in which the messages will actually be sent.

Waiting till the callback completes before sending the next message will solve your problem.

Regards
Senthil
_____________________________
My Blog | My Articles | WinMacro

methodincharge15-May-05 7:13

methodincharge

15-May-05 7:13

Where would the best place to implement the wait be?

If only I could find GOOD async code to model my implementation hah...
I am contemplating just writing synchronously and reading asynchronously because it doesnt really matter what order the messsages are received just that they are a single message.

Thanks

S. Senthil Kumar15-May-05 7:25

S. Senthil Kumar

15-May-05 7:25

Is it OK if the server receives message like
REQUEST:STATUSCONNECT:username:password... ??
That's what I meant by the ordering problem, your messages themselves could get mixed up.

I'd typically implement this by creating my own thread and running a queue system there. All messages to be sent are posted to the queue and the queue synchronously processes them.

Regards
Senthil
_____________________________
My Blog | My Articles | WinMacro

Check if a user is a member of a local group

methodincharge16-May-05 7:34

methodincharge

16-May-05 7:34

Thanks, works beautifully, I figured the problem was the Async sending but I wasn't sure.

Power Builder

quocbao14-May-05 21:26

quocbao

14-May-05 21:26

who's use powerbuilder tool or have ebook ! please help me.
thank you very much.

Johny Ng14-May-05 19:42

Johny Ng

14-May-05 19:42

Hi folks,

I want to write a piece of code to check if a domain user is member of a local group in my machine. I've read some articles but I don't think I can use LDAP here.
Could you guys give me a hint?

Thanks a bunch.

c# and DCOM

Millzy14-May-05 10:22

Millzy

14-May-05 10:22

Hi,

I'm trying to write an Out of proc DCOM server in C#. I have the Server written, its now a COM object so thats done.

Where i'm stuck is this. As far as I kmow, DCOM works by having a stub object on the machine that the server is running on, and then a proxy on each of the client machines that communicates with the stub object.

How are the stub and proxy objects created? I'm told that in C++, they are created automatically but I am developing this in C# so I need to know if it works the same. The client is written in C++ and the DCOM server is written in C#.

Any help or comments will be appreciated

Thanks

Millzy

Voice Over IP

charbelzibara14-May-05 9:20

charbelzibara

14-May-05 9:20

hi to all of you, i'm developing a voice over IP application
i need it for a web page also
i studied the directX to include directX sound i suppose
i need it but that didn't work on asp.net
all i found over the internet is applications made in c++
i needed for .net languages so i have 2 questions :
1- is directX Applicable in web pages
2- the way to develop a library of my own what do need to code in this library so i can used it as a component

i really do need help about this cause i found such components on the internet but are not for free
and if i buy it i don't suppose they send me the source code

so for all the experienced out there DO YOU HAVE THE SOLUTION i need HELP
send me mail to charbel_zibara@hotmail.com

Re: Voice Over IP

Dave Kreskowiak15-May-05 5:57

Dave Kreskowiak

15-May-05 5:57

ASP.NET is a server-side only technology that generated HTML pages for a client. You cannot use DirectX in an ASP.NET app. Since a web page cannot access hardware on the client computer, you'll have to develop a control that the client will have to install to do VoIP. No, I don't have ANY code to do this, nor do I have any source of information on it.

RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome

DateTime

Bahadir Cambel14-May-05 9:15

Bahadir Cambel

14-May-05 9:15

How could I change the format of the DateTime ?
The local Date is in the "dd-mm-yyyy" but SqlDbType is in "mm-dd-yyyy" format .
Thanks in advance.

Re: DateTime

quilkin14-May-05 10:34

quilkin

14-May-05 10:34

We use
time.ToString("G", DateTimeFormatInfo.InvariantInfo);
and you should also consider using
time.ToUniversalTime();
before storing times in the database, to avoid problems with daylight saving.

Re: DateTime

Luis Alonso Ramos14-May-05 17:13

Luis Alonso Ramos

14-May-05 17:13

If you want to store a date in SQL server, use parametized queeries, and that'll solve the problem, in any format SQL Server uses.

DateTime myDateTime = .....
string sql = "UPDATE People SET BirthDate = @Date WHERE ID_person = 1";
SqlCommand cmd = new SqlCommand(sql, conn);
cmd.Parameters.Add("@Date", myDateTime);
cmd.ExecuteNonQuery();

That will save the correct date, no matter what format is the local computer, and/or SQL Server's computer using.

Alternatively, there's a way to change the date format for SQL Server, but I don't remember the exact syntax. Using parametized queries, I don't need it.

Also, parametized queries help avoid SQL injection attacks, so I'll recommend them for every circumstance.

-- LuisR

Luis Alonso Ramos
Intelectix - Chihuahua, Mexico

Not much here: My CP Blog!

Re: DateTime

pubududilena15-May-05 18:15

pubududilena

15-May-05 18:15

hi,
easy way is give dateTime as string Format..
ex:-
DateTime.Now.ToString("MM/dd/yyyy hh:mm:ss tt")

Now No need to worry when local time and sqldbtype is different.

regards,
pubudu.

Newbie: Q regarding Sorting DataGrid

nad226314-May-05 8:36

nad2263

14-May-05 8:36

Hello,

In Windows Forms, I have a datagrid that is sortable by clicking on the column headers.

Say 2nd record is already selected and I sort the datagrid.

Now the previously selected row is unselected. At this point how do I get the index to this previously selected row to have it selected again.

Thank you.

Re: Newbie: Q regarding Sorting DataGrid

MoustafaS14-May-05 14:41