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It's a bit of an odd scenario since real serial ports don't tend to disappear, and it doesn't seem this possibility was taken into account when Microsoft wrote the SerialPort class: There's no event that indicates Com-port "disappearance" in it.
I guess your best option would be to start a separate thread that polls SerialPort.IsOpen every now and then: Most likely this will throw the error you got earlier when you disconnect the USB adapter, so you can catch that to see if the port's still there... Of course, you'll need to catch it at any other reference to SerialPort as well, that's just decent programming.
Alternatively, there might be a class somewhere in the .Net framework that monitors USB devices, don't have any experience with that. Could very well be a p/invoke kind of thing.
Standards are great! Everybody should have one!
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I Need Some Code For Detecting Seriao Port As COM post Of My System. But Every where written in .Net2.0 Serialport.Port name space is used but iam develope my project in .Net1.1 then plaese Help ME
Thanks
In Advance
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Hello All,
Actually i am new with C# and need to overload assignment operator(=) in C#,
when i am trying to overload assignment operator as follows
public static operator = (double a)
{
}
but it gives error as "overloadable unary operator expected"
plz sufggest me what i have to do?
thanks
Bankey
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Hi bankey,
"=" can't be overloaded in C#.
For your information other oerators like, . , ?:, ->, new, is, as, sizeof too can't be overloaded.
Regards,
Panicker.
P.S. Mark as answer if you feel the reply is appropriate.
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Hi,
you can implement implicit conversions though, so that may or may not solve your problem.
look for the implicit keyword.
Luc Pattyn [Forum Guidelines] [My Articles]
This month's tips:
- before you ask a question here, search CodeProject, then Google;
- the quality and detail of your question reflects on the effectiveness of the help you are likely to get;
- use PRE tags to preserve formatting when showing multi-line code snippets.
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Hello Friends,
I have a problem with print and printpreview.
I an using this code to print but there is a problem
Bitmap memoryImage = new Bitmap(panel1.Width, panel1.Height);
panel1.DrawToBitmap(memoryImage, panel1.ClientRectangle);
printDocument1.Print();
that it print one barcode on one page and another barcode on another page. As i want that it will utilize whole page means i know that on page page there should be 5 barcodes so how can i achive this....
And how can i show Print Preview
Thanks
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Wrap the particular application up in a CCW. (Com Callable Wrapper).
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Could you please tell me a bit in detail? Which application you want me to wrap?
A guidance to some kind of example will be very nice. Thanks for a reply.
Regards,
Pavas
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Hi,
Is there any control in C# , In which we can load rtf wtih header and footer and do margin setting as well.
If you have any idea about this, then please inform me at
khaleek_ahmad@yahoo.com
Thanks in advance
Khaleek ahmad
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You can use richtextbox to load rtf files but I'm not sure whether you will be able to manipulate with margin settings. You could give it a try though. I guess you can achieve what you want using this article: Integrating Microsoft Word in your .NET applications[^]
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I am trying to write code for compiler using Codedom. I am unable to compile code which uses COM references. The code gives file not found exeception while adding COM reference to Compiler parameter object even if it is present in the output folder of the code to compile(No idea why).
The possible solution I can search of is to get the executable path for the code to compile because those dlls are present in the same folder(I may be wrong here).
How can I get the executable path of the code that will be compiled??
or
Am I going with wrong approach?? If yes, then how to solve this issue????
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Did you generate the assembly you are adding with 'tlbimp'. You can't add a direct reference to a COM library.
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I am working on a addin in that one part is to move mails from one folder to other folder
like this i am getting both folder info..
string S_fold = rm.GetString("Source folder");
MAPIFolder oFolder1 = null;
oFolder1 = oExp.Session.GetDefaultFolder(OlDefaultFolders.olFolderInbox).Folders[S_fold];
The above source folder is sub folder of inbox similarly i have destination folder also...
so can anybody tell me now ... how to move mail from one folder to another is thereany existing function is there..
i was trying like copy the mail to destination and then deleting the mail from source but
i am not able to copy mails from one folder to other though i can copy the folder
please help me here...
Thanks in advance...
vikas da
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How can I have a delegate or button continue an ongoing process that was stoped. And how do pause a process at a set interval(see below).
for (int i=1; i<=10000; i++)
{
for (int j=1; j<=10; j++)
{
a = a + 1;
}
//Pause process here everytime
//Continue process with button is pressed
}
Thanks in advance
Michael
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Are you not able to implement with timers or Thrading ?
/***********************/
Parwej Ahamad
g.parwez@gmail.com
/***********************/
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MessageBox.Show is going to stop the process and it will restart when you close the box.
Christian Graus - Microsoft MVP - C++
"also I don't think "TranslateOneToTwoBillion OneHundredAndFortySevenMillion FourHundredAndEightyThreeThousand SixHundredAndFortySeven()" is a very good choice for a function name" - SpacixOne ( offering help to someone who really needed it ) ( spaces added for the benefit of people running at < 1280x1024 )
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try
Thread.Sleep(<MILISECS>);
TVMU^P[[IGIOQHG^JSH`A#@`RFJ\c^JPL>;"[,*/|+&WLEZGc`AFXc!L
%^]*IRXD#@GKCQ`R\^SF_WcHbORY87??6?N8?BcRAV\Z^&SU~%CSWQ@#2
W_AD`EPABIKRDFVS)EVLQK)JKSQXUFYK[M`UKs*$GwU#(QDXBER@CBN%
Rs0~53%eYrd8mt^7Z6]iTF+(EWfJ9zaK-i?TV.C\y<p?jxsg-b$f4ia>
--------------------------------------------------------
128 bit encrypted signature, crack if you can
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I already considered sleep, but this won't work I have a timer that needs to start the process at set intervals using a delegate.
Michael
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so then you should use MessageBox as Christian Graus said
or use timer_tick event intead of for loop
TVMU^P[[IGIOQHG^JSH`A#@`RFJ\c^JPL>;"[,*/|+&WLEZGc`AFXc!L
%^]*IRXD#@GKCQ`R\^SF_WcHbORY87??6?N8?BcRAV\Z^&SU~%CSWQ@#2
W_AD`EPABIKRDFVS)EVLQK)JKSQXUFYK[M`UKs*$GwU#(QDXBER@CBN%
Rs0~53%eYrd8mt^7Z6]iTF+(EWfJ9zaK-i?TV.C\y<p?jxsg-b$f4ia>
--------------------------------------------------------
128 bit encrypted signature, crack if you can
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How does that help ?
Christian Graus - Microsoft MVP - C++
"also I don't think "TranslateOneToTwoBillion OneHundredAndFortySevenMillion FourHundredAndEightyThreeThousand SixHundredAndFortySeven()" is a very good choice for a function name" - SpacixOne ( offering help to someone who really needed it ) ( spaces added for the benefit of people running at < 1280x1024 )
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ah, i thought the pause is time bound
TVMU^P[[IGIOQHG^JSH`A#@`RFJ\c^JPL>;"[,*/|+&WLEZGc`AFXc!L
%^]*IRXD#@GKCQ`R\^SF_WcHbORY87??6?N8?BcRAV\Z^&SU~%CSWQ@#2
W_AD`EPABIKRDFVS)EVLQK)JKSQXUFYK[M`UKs*$GwU#(QDXBER@CBN%
Rs0~53%eYrd8mt^7Z6]iTF+(EWfJ9zaK-i?TV.C\y<p?jxsg-b$f4ia>
--------------------------------------------------------
128 bit encrypted signature, crack if you can
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Given:
a textBox1 with a key event
typing in a string and a unicode(i.e letter "a with circumflex") to be inserted whenever a letter "a" is pressed
problem:
after it inserting the letter, it added an extra "a" at the front
and the cursor does not stay at inserted-position. It start at the front
instead.
Expect to be:
get rid of the extra letter and move the keep the cursor at where it perform the inserting process.
I used the remove() but didn't work
my code is as follow. Please help me.
private void keyDown(object sender, System.Windows.Forms.KeyEventArgs e)
{
int curPos = textBox1.SelectionStart;
if(e.KeyValue.ToString()=="65")
{ char[] unicode = {'\u00E2'};
textBox1.Text = textBox1.Text.Insert(cur,new string(unicode));
}
}
VyT
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Well, perhaps you need to read the docs. The a has been pressed, and you're not removing it, you're just inserting an extra character. Try the Replace method instead perhaps ?
And, store the cursor pos before and reset it after.
Christian Graus - Microsoft MVP - C++
"also I don't think "TranslateOneToTwoBillion OneHundredAndFortySevenMillion FourHundredAndEightyThreeThousand SixHundredAndFortySeven()" is a very good choice for a function name" - SpacixOne ( offering help to someone who really needed it ) ( spaces added for the benefit of people running at < 1280x1024 )
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