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I am a new c# programmer and i need to create a c# program which can connect to a network printer and swap the ports i.e if printer 1's port is 192.11.36.1 and printer 2's port is 192.11.36.3 i need to be able to swap these over by the click of a button then switch them back again. Please Help
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I am using System.Data.DataRelation object to get the child rows using DataRow.GetChildRows method. GetChildRows method works for 100000 records but when there are 100001 records it do not return any child rows. Is there any limitation for this?
Thanks
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Hi, my project is in ms studio 2005. when i use comm component(axWinSock)
in my project and again installed it to the client pc.
the program is not running.
"it gives an error project.exe encountered an error needs to close"
however
i installed .Net Freamwork 2.0 on that machine but problem is same..
i copied the mscomm.ocx file in the system32 folder but i could not solve this..
the mswsock.dll is also available on client side...
* What is the funda behind the comm component.. ?
* is there any program that I have to run on client machine..
![Rose | [Rose]](https://www.codeproject.com/script/Forums/Images/rose.gif)
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Use Dependancy Walker [^] to see if any dependancies are missing.
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What's a "funda"? 
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Hi,
What I would like to do is to monitor the whole registry in win xp. The best would be to receive an event when a registry key has changed/created/received but in a way that I could figure out which key was it.
So far I subscribed for quite a few RegistryTreeChangeEvent to see the tree changes in every hive. But the problem with this is that in RegistryTreeChangeEvent I couldn't figure out which key changed just the hive and the rootpath. I tried to find the change in the registry but it's very time and resource consuming.
My next idea would be to register for RegistryKeyChangeEvent and RegistryValueChangeEvent for every registry key but I'm guessing it would have a huge overhead.
So if anybody knows any way to receive events when something changes in the registry or how to monitor the whole registry at all then please tell me!
And I have read some articles here which were useful in general but it didn't solve my problem:
http://www.codeproject.com/KB/system/WMI_RegistryMonitor.aspx
http://www.codeproject.com/KB/system/registrymonitor.aspx
Thanks in advance,
Geri
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Hi Geri,
I think you may find something using "Windows Hooks" , you need to search for it , i am assuming that if registry value is changed a message or notification should be sent to the system , we can use "Windows Hooks" to get this message form the system's message queue (i am not not sure about the method , just try to mention a possible solution) , the above two methods u mentioned do pooling on to registry , which not good always 
-Regards
Bharat Jain
bharat.jain.nagpur@gmail.com
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Hi,
First of all thanks for your reply! I looked for some reading on the windows hooks you mentioned, but unfortunately I haven't had much luck. The thing is that I couldn't find any hooks which would give information about the registry. Actually I found these hook types:
* WH_CALLWNDPROC and WH_CALLWNDPROCRET Hooks
* WH_CBT Hook
* WH_DEBUG Hook
* WH_FOREGROUNDIDLE Hook
* WH_GETMESSAGE Hook
* WH_JOURNALPLAYBACK Hook
* WH_JOURNALRECORD Hook
* WH_KEYBOARD_LL Hook
* WH_KEYBOARD Hook
* WH_MOUSE_LL Hook
* WH_MOUSE Hook
* WH_MSGFILTER and WH_SYSMSGFILTER Hooks
* WH_SHELL Hook
http://msdn.microsoft.com/en-us/library/ms644959(VS.85).aspx
but none of them looks useful for me. If you have any other ideas or links where I could read more then it would be very much appreciated.
cheers
Geri
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hi,
I m devloping a windows application in which i want to give the facility to add water mark over existing video,i am using an Directshownet library for that.Any one help me for the same?
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hi,
What is the major differnce between private readonly fields and non private readonly fields... waiting for reply...
Regards,
Prajilal
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Exactly what it says. Private are private, public are public. Its a basic programming concept.
Bob
Ashfield Consultants Ltd
Proud to be a 2009 Code Project MVP
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DJ245 wrote: What is the major differnce between private readonly fields and non private readonly fields... waiting for reply...
'non'? 
A readonly field cannot, by definition, be written. A private readonly field cannot be read too (only an instance of the class defining such field can) while (for instance) a public readonly field can be (publically!) read.
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke
[My articles]
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Private fields are trickier to access by the public.
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hi..friend,
I tried PDFBox. i am working on window apllication dot net framwork 3.5 and as per your information i added .dll file-
# IKVM.GNU.Classpath.dll
# PDFBox-0.7.3.dll
# FontBox-0.1.0-dev.dll
# IKVM.Runtime.dll
in my application and also used this code to open pdf,here is my code...
string Ppath = "C:\\Documents and Settings\\Administrator\\Desktop\\sample \\KT_19100101\\AC_01\\0001.pdf";
PDDocument doc = PDDocument.load(Ppath );
PDFTextStripper pdfStripper = new PDFTextStripper();
but i got error message like..
expected='startxref' actual='13' org.pdfbox.io.PushBackInputStream@158d014
string aaa = pdfStripper.getText(doc);
so please send realted code to my mail id... bettiahamit@gmail.com
i really appriciated you.
i am waiting your response.
thx,
amit
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raj231362 wrote: as per your information i
You're mistaken. I didn't tell you anything. If you want to continue a discussion with someone, reply on that thread.
raj231362 wrote: expected='startxref' actual='13' org.pdfbox.io.PushBackInputStream@158d014
Are you sure your PDF is well formed
raj231362 wrote: so please send realted code to my mail id... bettiahamit@gmail.com
You are an idiot.
1 - if you registered with this email, you would get any reply emailed to you
2 - putting your email on a public forum is a good way to get spam
3 - why would we email someone who wants our help but apparently doesn't value this forum enough to read it ?
Christian Graus
Driven to the arms of OSX by Vista.
"I am new to programming world. I have been learning c# for about past four weeks. I am quite acquainted with the fundamentals of c#. Now I have to work on a project which converts given flat files to XML using the XML serialization method" - SK64 ( but the forums have stuff like this posted every day )
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hi Christian,
sorry for that mistake...
please help me if there is such mistaken by me...what is this..!!
help me..!!
thx
raj
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I don't know how use this library.
I 'll advise you to use the iTextSharp library which is well know by a large number of developpers.
It seems to be easier to get tutorial on the net...
modified on Friday, April 24, 2009 5:45 AM
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hi..tom,
thx for ur warm response...
if there is any related topic or example??
which provide me some help...!!
i am waiting ur response.
thx
raj
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I think you were able to it yourself, it pretty easy  :
Here
The first answer is a Code project link, so you can also search on the website before annoying people with small talk
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Hi All,
I have a file to send to client rtu. I want to display progress bar while sending file. How it should be implemented in windows form in c#.
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Well, the progress bar should run on another thread. I assume you get some sort of callback as the file is sent to tell you how much has been sent ?
Christian Graus
Driven to the arms of OSX by Vista.
"I am new to programming world. I have been learning c# for about past four weeks. I am quite acquainted with the fundamentals of c#. Now I have to work on a project which converts given flat files to XML using the XML serialization method" - SK64 ( but the forums have stuff like this posted every day )
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public void GetCookie()
{
string subkeyName,subkeyValue;
string str = null;
str = Request.QueryString["productid"];
Addtocart.Value = str;
Addtocart.Expires = DateTime.Now.AddDays(1);
Response.Cookies.Add(Addtocart);
for (int i = 0; i < Request.Cookies.Count; i++)
{
AppCookie = Request.Cookies[i];
output.Append("Name = " + AppCookie.Name + "
");
if (AppCookie.HasKeys)
{
for (int j = 0; j < AppCookie.Values.Count; j++)
{
subkeyName = Server.HtmlEncode(AppCookie.Values.AllKeys[j]);
subkeyValue = Server.HtmlEncode(AppCookie.Values[j]);
output.Append("Subkey name = " + subkeyName + "
");
output.Append("Subkey value = " + subkeyValue +
"
");
}
}
else
{
output.Append("Value = " + Server.HtmlEncode(AppCookie.Value) +
"
");
}
}
CacheMsg.Text = output.ToString();
}
Through above coding we try to store more than two cookies but we didn't achieved.....so is there any way to store more then two cookies
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hi,
i developed a small project. where i used a axwinsock comm component.
its runs on my machine, the setup.exe works on my pc. but when i try it to client pc
it gives an error "Project1.exe has encountered a problem and needs to close"
try tried other project and they were working...
My question is that "Is that the problem of comm component" ?
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ddravin2000 wrote: but when i try it to client pc
it gives an error "Project1.exe has encountered a problem and needs to close"
First of all which Framework did you used ? Does the client system having the same framework?
Does all dll present in the Client System?
Try to build a setup project, Add all dependency with the setup and then install it on client system then try.
cheers,
Abhijit
CodeProject MVP
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