C# socket problem - C# Discussion Boards

Hello,

I have a listview control with bunch of entries. When the user
right-clicks on the item, I want a context menu to come up. So I
created a ContextMenu instance and assigned it to ListView.ContextMenu
property.

The problem is that the context menu comes up regardless of whether I
right-click on the item or the empty space or the column header. I want
it only to come up when the user right-clicks on an item. How can I
control the ContextMenu better?

Thank you very much and have a great day.

Khoramdin

On the mousedown event for the listview place the following code:
if (ListView1.GetItemAt(new Point(e.X, e.Y)) != null)
ListView1.ContextMenu = yourContextMenu;
else
ListView1.ContextMenu = null;

hello guys,
how i can change the skin of my form ?
for example :
like this
http://www.codeproject.com/showcase/FunnelIt/image001.jpg[^]
i want to know what steps are required to something like this or any skin i wan t

How To skin C# apps?

.NET toolkits for skinning support

-------------------------
Listen up! Teamwork means staying out of my way! (Seifer, Final Fantasy 8).

You can use .CSS file with .skin file.
.skin file affect your whole project.
.CSS file use for applay class only for particular control.

How to applay .skin file and .css
=========================================================================
Skin File
.skin file tage applay to whole application
Skin File
<asp:textbox runat="server" cssclass="txtBox">
<asp:label runat="server" cssclass="lblOptional">
.CSS File
body {
}
#fieldset
{
position: absolute;
font-weight: bold;
background-color:Silver;
}
#fieldset .txtBox {background-color:Red; }
#fieldset .lblOptional
{
color:Red;
}
.txtBox
{
border: 1px solid #1B3D6B;
font-size:1em;
background-color:#BBAAFF;
}
.lblOptional
{
color:Blue;
}

Parasania Sandip
MOB : 9879840216
Parasaniasandip@gmail.com
(M.C.A.,P.G.D.C.A.,B.I.T.& C.A.)

Hi,

I have a listView with oneClick activation enabled. It's working fine but there's a really ugly effect, that is when I pass the mouse over the items it blinks.

How can I stop that?

Please help.

Look here.

Hope it helps,

- Dmitry.

-------------------------
Listen up! Teamwork means staying out of my way! (Seifer, Final Fantasy 8).

The problem that I'm having is I'm not recieviing all of the data from my socket at 1 time. I'm receiving it in chunks. So I created a custom object that looks for
a specific string then raises a delegate indicating that the entire string was
received. I'm receiving data from 30 different devices so I'm using threads and the thread pool. For some reason every so often my buffer does'nt get cleared out
and the message gets stored wrong into my sql database.

I'm waiting for data with the following method:----------------------

rivate void WaitForData()
{
Waiting = true;

AsyncCallback GetDataCallBack = new AsyncCallback(ProcessData);

StateObject StObj = new StateObject();

StObj.WorkSocket = SockCLient;

//wait for more data
try //If the socket disconnects during the begin receive
{

SockCLient.BeginReceive(StObj.DataBuffer, 0, StObj.DataBuffer.Length,
SocketFlags.None, GetDataCallBack, StObj);

}
catch(Exception Ex)
{

SockCLient.Poll(1000, SelectMode.SelectRead); //this is to poll the socket for 1 second to get the status

if (SockCLient.Connected == false && SocketStillConnected() == false)
{
ConnectToDevice();
}

}
Waiting = false;
}

Receiving the data with the following code:----------------------------------

private void ProcessData(IAsyncResult Asr)
{
Array.Clear(Bytes, 0, Bytes.Length - 1);

StateObject SockId = (StateObject)Asr.AsyncState;

int IEndRec = 0;

try
{

IEndRec = SockId.WorkSocket.EndReceive(Asr);
}
catch
{
}

char[] Chars = new char[IEndRec + 1];

Decoder d = Encoding.UTF8.GetDecoder();

int CharLen = d.GetChars(SockId.DataBuffer, 0, IEndRec, Chars, 0);

//does some more stuff down here

waitfordata();

}

my string appender object looks like this:-------------------------------

public class StringAppender : TextBox
{

public StringAppender()
{
this.Multiline = true;
}

public delegate void TextReceived(string Value);

public event TextReceived TextDataReceived;

public string TextBox
{
get
{
return this.Text;
}
set
{
this.Text = value;
}
}

public void AppendText(string Text, string[] ValuesSearched, bool FirstRun)
{
Text = Text.Replace("\0", "");

if (Text.Length > 0)
{
try
{
this.Text = this.Text + Text;

foreach (string Str in ValuesSearched)
{
if (this.Text.IndexOf(Str) != -1)
{
TextDataReceived(this.Text.Substring(0, this.Text.IndexOf(Str)));

ClearText();
}
}
}
catch (Exception Ex)
{
throw Ex;
}
}
}

public void AppendText(string Text, string ValueSearched, bool FirstRun)
{

Text = Text.Replace("\0", "");

if (Text.Length > 0)
{
try
{
this.Text = this.Text + Text;

if (this.Text.IndexOf(ValueSearched) != -1)
{
TextDataReceived(this.Text.Substring(0, this.Text.IndexOf(ValueSearched)));

ClearText();
}

}
catch (Exception Ex)
{
throw Ex;
}
}

}

public void ClearText()
{
this.Text = "";

}

}

//----------------------------------------------------------------------

Jason E Cain

After reformatting your code so I could follow it properly, I see that there are multiple problems.

Instead of calling another method for "ClearText()", try putting in the line "this.Text = string.Empty;" in place of the call to "ClearText()". The alternative is to clear the buffer before the call to "BeginRead()".

Phil

heya guys ... I'm gonna start writing a NEW windows exactly like what Microsoft did . and I'm gonna be another bill gates ... pouyan Gates or somthing ...

if you wanna be in my crew let's START OVER .... Cool | :cool:

What ever it is your smokin' I suggest you stop.

Upcoming events:
* Glasgow: Introduction to AJAX (2nd May), SQL Server 2005 - XML and XML Query Plans, Mock Objects, SQL Server Reporting Services...

Never write for other people. Write for yourself, because you have a passion for it. -- Marc Clifton

My website

You wanted to know how to crack windows[^] and I guess you have found a way out. Best of Luck Big Grin | :-D

Well good luck with that then. We'll see you in 20 years when you've finished coding it. Oh wait, MS will have moved on by then.

Deja View - the feeling that you've seen this post before.

20 years?? You're assuming he'd ever get v1.0 released!

At least it'll be entertaining to watch. We can all recline in our lounges and watch the little lunatic bound off up the hill, into the sunset, yelling "Charge!" at the top of lungs. Big Grin | :-D

Dave Kreskowiak
Microsoft MVP
Visual Developer - Visual Basic
2006, 2007

For some reason, I just had to vote your post as Spam. It was an uncontrollable, involuntary response to the daft insanity of your "idea" as I spit my Coke all over my monitors.

Dave Kreskowiak
Microsoft MVP
Visual Developer - Visual Basic
2006, 2007

Dave Kreskowiak wrote:
It was an uncontrollable, involuntary response to the daft insanity of your "idea" as I spit my Coke all over my monitors.

Tech, life, family, faith: Give me a visit.
I'm currently blogging about: Virginia Tech Shootings, Guns, and Politics
The apostle Paul, modernly speaking: Epistles of Paul

Judah Himango

Why do exactly the same, there must be some opportunity to do better... Smile | :)

Luc Pattyn

[My Articles]

please let me know best ways for multi-user application, in simple way, we shared a folder on server pc and link to it in application, but in this case, all clients could visit files and copy them!

hamid_m wrote:
please let me know best ways for multi-user application

That's kind of vague, don't you think? Do you want multiple people running the app from the same network share, or do you want multiple people running your app hitting the same database? SQL Server or Access?

hamid_m wrote:
we shared a folder on server pc and link to it in application, but in this case, all clients could visit files and copy them!

Of course, that's what a file share is for!

Dave Kreskowiak
Microsoft MVP
Visual Developer - Visual Basic
2006, 2007

multiple people running app from their pc that linked to network and work with one database in server shared folder.
not important sql server or access, i mean how can i do this without get folder access to clients, i dont want client visit files and shared folder

hamid_m wrote:
work with one database in server shared folder

This means that you'd be using an Access database, which is file based. You have absolutely no choice but to put the .MDB file in a network shared folder, and giving the users Read and Write permissions to the share and the folder. No choice what-so-ever.

The only way to do it so you don't need a share is to use a REAL database engine that works on TCP/IP, like SQL Server or MySQL.

Dave Kreskowiak
Microsoft MVP
Visual Developer - Visual Basic
2006, 2007

Dave Kreskowiak wrote:
The only way to do it so you don't need a share is to use a REAL database engine that works on TCP/IP, like SQL Server or MySQL.

would you please help me to check sql server by tcp/ip connection?

What do you mean by "check sql server"??

Dave Kreskowiak
Microsoft MVP
Visual Developer - Visual Basic
2006, 2007

i mean create and check what you say about TCP/IP connection by sql server.
is there any tutorial or sample for it?
thanks

All you have to do is look in the documentation for the System.Data.SqlClient namespace. There's tons of examples. The only thing missing from them is a connection string, which will be specific to your environment. You can find examples of those at ConnectionString.com[^].

Dave Kreskowiak
Microsoft MVP
Visual Developer - Visual Basic
2006, 2007