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Re: Writing a Type to Binary File

JamesBarnes31-Jul-07 1:11

JamesBarnes

31-Jul-07 1:11

Thanks for the quick reply (again Big Grin | :-D

), it was very helpful ^^

how to make sure Socket has connected?

Gavin Roberts31-Jul-07 0:56

Gavin Roberts

31-Jul-07 0:56

Hi all,

I would like to be able to correctly determine whether I have connected to my Host before trying to login.

Everything I can think of trying has failed.

If I try connecting to 192.168.0.1 110 it says its connected, but has 0 bytes Available. Which is great, and works for valid and invalid addresses whilst debugging, but as soon as I remove all breakpoints it comes back with errors on the valid addresses.

I done a quick search, and found using a mixture of Poll and Available which unfortunately doesn't work either.

Basically I don't want any code to continue until I have a Connected and Communicating Socket.

Any idea's?

Regards

Gav

Re: how to make sure Socket has connected?

led mike31-Jul-07 4:21

led mike

31-Jul-07 4:21

Gavin Roberts wrote:
it comes back with errors

What errors?
What "comes back with errors"?

Gavin Roberts wrote:
Basically I don't want any code to continue until I have a Connected and Communicating Socket.

Then check for the error and if present don't continue

Re: how to make sure Socket has connected?

Gavin Roberts31-Jul-07 5:08

Gavin Roberts

31-Jul-07 5:08

Sorry. Basically I use Socket.Available to check if any data is available before continuing which whilst stepping through with a debugger, works fine as soon as I run the code with no breakpoints Socket.Available returns 0.

I am currently using Socket.Read to check but that is quite slow.

Cheers for the reply.

Gav

Re: how to make sure Socket has connected?

led mike31-Jul-07 5:41

led mike

31-Jul-07 5:41

Gavin Roberts wrote:
I am currently using Socket.Read to check but that is quite slow.

Slow?? Read will read quit fast when the TCP/IP stack has received the data from the remote socket. If it is "slow" then the network connection or remote server must be slow.

Under normal network and server conditions for a POP3 Server, you can do a blocking "Connect" and when that returns you can "Read" the "OK" message sent by the Server immediately. There should be no significant delay. If there is, then you have a network issue or the POP3 Server is slow.

Re: how to make sure Socket has connected?

Gavin Roberts31-Jul-07 6:08

Gavin Roberts

31-Jul-07 6:08

I am using Socket.Connect to connect.

At the moment, I am having to use Socket.Receive to determine whether the connection is valid or not.

I was using Socket.Available, but this only seemed to work when I was stepping through each line using Visual Studio. As soon as I removed all breakpoints and allowed it to continue as normal, Socket.Available returned incorrect data, as if it hadn't enough time to populate.

Socket.Receive is slow for a invalid Connection, and i'd prefere to speed this up.

Thanks

Gav

Re: how to make sure Socket has connected?

pbraun31-Jul-07 8:45

pbraun

31-Jul-07 8:45

Gavin Roberts wrote:
Socket.Receive is slow for a invalid Connection, and i'd prefere to speed this up.

Socket.Receive is blocking which means that it will only return after it has received data or the connection has been closed.

To check if the connection is valid you will have to look at the socket options available to see if any of those help. Also you should be checking the return status of Socket.Connect to see if it connected properly and if you are not catching any exceptions around the Socket.Connect, then you will be missing information that may lead to the answer you are seeking.

An inference from the above is that the socket should be valid by the time the receive method is called.

Phil

Re: how to make sure Socket has connected?

led mike31-Jul-07 9:06

led mike

31-Jul-07 9:06

Gavin Roberts wrote:
I am using Socket.Connect to connect.

Ok but have you "read" the documentation[^]

You are expecting certain behavior based on "what" if you haven't read the documentation? Just guessing?

Unrecognized attribute 'xmlns'

kalyan_241631-Jul-07 0:46

kalyan_2416

31-Jul-07 0:46

hi Unrecognized attribute 'xmlns'
all i a getting an error while running a asp.net web application in visual studio 2005
please help mee
actually i did all
1) aspnet_regiis -i
2) going to properties of iis

actuallly i installed 2008 web edition and windows pre release once in between i stopped the installation then reinstalled later
from the time i stopped in between i not able to run web application please help me
byebye

Re: Unrecognized attribute 'xmlns'

Vasudevan Deepak Kumar31-Jul-07 0:58

Vasudevan Deepak Kumar

31-Jul-07 0:58

http://forums.asp.net/p/994229/1297442.aspx[^]

Vasudevan Deepak Kumar
Personal Homepage
Tech Gossips

Re: Unrecognized attribute 'xmlns'

prasanna muthuramalingam31-Jul-07 1:42

prasanna muthuramalingam

31-Jul-07 1:42

in controlpanel goto adminstrative tool->iis->website->defaultwebsite->(rightclick and click properties)from the tab clickasp.net and change the version from 1.1 to 2.0 if it is not changed and try it again

prasanna muthuramalingam

Re: Unrecognized attribute 'xmlns'

kalyan_241631-Jul-07 1:52

kalyan_2416

31-Jul-07 1:52

dude
my problem is like this see the next part of my question
i have installed .net framework 3.5 version and i dont get that option in iis tab

How to get installed products on a system

Yosh_31-Jul-07 0:41

Yosh_

31-Jul-07 0:41

Hi all,
Please i got a problem. I have a program that runs underneath to help for security. When i have another version of that program, i have to install that stealth program again, which sometimes leads to conflict.
Question: Is there a way i can check for the existence of that program on the system to know if installation should continue?
Probably something with System.Management or File.Exists()?

Thanx a lot.

Everything has its beauty but not everyone sees it.

Re: How to get installed products on a system

Luc Pattyn31-Jul-07 1:00

Luc Pattyn

31-Jul-07 1:00

Hi,

you can detect the existence of the EXE file with File.Exists() but if the app
is running, you will not be able to overwrite it.

you can detect the EXE being active by checking the running processes, e.g.
with Process.GetProcesses(). You could try to kill the process if it is running,
after making sure it is your program to begin with.

Of cource, a security app should protect itself against being killed and/or
overwritten. I have seen security apps that consist of more than one EXE that
keep watch on each other. As soon as one exe sees another part is missing,
it launches the app; if that occurs say every second (or based on a FileSystemWatcher
assuming it is fast enough), it becomes hard to manually kill it all.

Smile | :)

Luc Pattyn

try { [Search CP Articles] [Search CP Forums] [Forum Guidelines] [My Articles] }
catch { [Google] }

Re: How to get installed products on a system

Yosh_1-Aug-07 3:41

Yosh_

1-Aug-07 3:41

Hi Luc,
is there not a way i can query the system registry to get a list of installed products? Cos the installation path of the EXE to be sought might be dynamic.
thanx

He who goes for revenge must first dig two graves.

Re: How to get installed products on a system

Luc Pattyn1-Aug-07 3:53

Luc Pattyn

1-Aug-07 3:53

I'm afraid that is a complex matter; AFAIK there is not just one way of registering
an installed product, it may reside in lots of registry branches.

Part of the solution may be to watch for all the known file associations,
they obviously must point back to the EXE that needs to be launched when a
file gets double-clicked in Windows Explorer.

Smile | :)

Luc Pattyn

try { [Search CP Articles] [Search CP Forums] [Forum Guidelines] [My Articles] }
catch { [Google] }

Problem in mdi form

deepaksringr31-Jul-07 0:21

deepaksringr

31-Jul-07 0:21

hi friend my problem is in mdi form there are some menu and one menu option is login by clicking login the next page login page open it show in mdi form but after clicking ok button which exist in login page we want another page open but it not happened
so please tell me but to do

deepak chandra

Re: Problem in mdi form

Martin#31-Jul-07 0:44

Martin#

31-Jul-07 0:44

Hello,

A code snipped would help us I think!

Are you call "Show" or "ShowDialog" to open the 'login' page over the menu?
If you use "ShowDialog", you can not open on other Form from that, I guess.
If you open the second Form than with Show, the Dialog Form will close.

All the best,

Martin

Re: Problem in mdi form

deepaksringr31-Jul-07 0:58

deepaksringr

31-Jul-07 0:58

no i haven't used dialog

ok button what will i write ?by which another page open and show in mdi form

deepak chandra

Re: Problem in mdi form

Yosh_31-Jul-07 0:55

Yosh_

31-Jul-07 0:55

deepaksringr wrote:
hi friend my problem is in mdi form there are some menu and one menu option is login by clicking login the next page login page open it show in mdi form but after clicking ok button which exist in login page we want another page open but it not happened
so please tell me but to do

A little code snippet will be helpful.

Everything has its beauty but not everyone sees it.

Update the dataset into database table

chandragupta.k30-Jul-07 23:37

chandragupta.k

30-Jul-07 23:37

Hi all ,
I need to update the changes made on the dataset to database ,i wrote the following code but its getting updated to database ,please help me somebody

The code like this
Da=new SqlDataAdapter("SELECT * FROM MailsInQueueTest",sqlcon);
SqlCommandBuilder builder = new SqlCommandBuilder(Da);
sqlcon.Open();
Da.Fill(MailDataset);

foreach(DataRow dr in MailDataset.Tables[0].Rows)
{
if((Convert.ToInt16(dr[0]))==1)
{
dr.Delete();
}
}
MailDataset.AcceptChanges();
builder.GetUpdateCommand ();//.GetDeleteCommand();
Da.Update(MailDataset);

Thanks In Advance
Chandra Gupta

WPF Treeview with Checkboxes

Johan Lombaard30-Jul-07 23:37

Johan Lombaard

30-Jul-07 23:37

I need to define a treeview with xaml that has a checkbox on each node without binding it to a data source. Can anyone help me ?

Johan Lombaard

Only two things are infinite, the universe and human stupidity, and I'm not sure about the former - Albert Einstein

Start a Windows Forms application from a Windows Service

usermans30-Jul-07 23:30

usermans

30-Jul-07 23:30

Hello,
I was trying to make a Windows Service that monitors a certain condition and starts a Windows Forms application when the condition is met.
I used the
System.Diagnostics.Process.Start(@"c:\app.exe");
but whenever this line runs the application (the Windows Forms application) fails.
I tried the same code to run the application "app.exe" from another Windows Forms applcication and it worked fine?
Can anybody please tell me why is this happening?

Re: Start a Windows Forms application from a Windows Service

Luc Pattyn30-Jul-07 23:45

Luc Pattyn

30-Jul-07 23:45

Hi,

if your app has a GUI, it can only run when someone has logged on,
unless you perform an "impersonation". You'll have to look that up,
I don't know any details.

Smile | :)

Luc Pattyn

try { [Search CP Articles] [Search CP Forums] [Forum Guidelines] [My Articles] }
catch { [Google] }

Re: Start a Windows Forms application from a Windows Service

justintimberlake30-Jul-07 23:58

justintimberlake

30-Jul-07 23:58

make sure ur service is desktop interactive i.e go to service(SCM) and right click ur service to see the property under logon tab check allow service to interact with desktop the ur System.Diagnostics.Process.Start(@"c:\app.exe"); will work. interaction can aslo be done programmaticalyy.do u want that also

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