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rhank you for youre kind help. i'm really struggling with this language..anyway, below was posted a specific ex, i dont have the strings in advance. i need to allocate memory for thr new string.
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This is the C# forum. You don't need to allocate memory for this because this is taken care of automatically. Your routine would probably be along the lines of:
public string MyReplace(string original, string valueToReplace, string replace)
{
if (original.IsNullOrEmpty || replace.IsNullOrEmpty ||valueToReplace.IsNullOrEmpty)
throw new Exception("One of the arguments is empty or null");
return orignal.Replace(valueToReplace, replace);
}
the last thing I want to see is some pasty-faced geek with skin so pale that it's almost translucent trying to bump parts with a partner - John Simmons / outlaw programmer
Deja View - the feeling that you've seen this post before.
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<br />
string str = "aaabbb";<br />
string toReplace = "aaa";<br />
string replacement = "zzz";<br />
<br />
str = str.Replace(toReplace, replacement);
life is study!!!
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thank you for you're kind help. the thing is tose are specific ex, i dont know in advance what will be my toreplace string and the replacement. also, i need to alocate memory for the new string
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Do you want us to write your entire project for you?
Dave Kreskowiak
Microsoft MVP - Visual Basic
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s="aaabbb";
s=s.Replace("aaa","zzz");
_____________________________________________________
Yea! I could be wrong...
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I made this SetUp project using VS 2005, that works fine.
The only thing is that when select prequisites from project properties, I select .NET Framework 2.0, then I select 'Install from the same location' it builds fine.
VS creates a folder in the bin>>debug dir. called dotnetfx, BUT, when I run the setup on another machine where .net 2.0 is not there, I recieve the Message box That .NET 2.0 is not installed ..blah blah blah..
I also tried to delete the Launch condition of .NET Framework , it does not go....
I searched on the net and found http://visualbasic.about.com/od/usingvbnet/a/SetupProj01_2.htm
I added the prerequisites but still, it doesn't install WHY?
_____________________________________________________
Yea! I could be wrong...
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Hi,
You are telling the installer that dotnetfx MUST be installed first AND that if it isn't then dotnetfx.exe can be found in the same location as your program AND to run that first. If this is what you want to do then you will have to distribute dotnetfx bundled with your program.
Glen Harvy
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hi all
does anyone know how to replace the carriage returns in excel ?
the carriage returns are going in fine ("\r\n") and I can remove them and replace them with nothing or whatever I want, but I need to keep the carriage return so I need to know what to change it to. Excel doesnt deal with normal carriage returns and they display as little square boxes.
atm I have :
dr["text_value"].ToString().Replace("\r\n","[WHAT DO I CHANGE TO HERE]")
this is a csv file I'm creating from a db so I just need to know what the correct value for a carraige return in excel is ?
hope tat makes sense.
any pointer well appreciated
tia
tim
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Hi there,
I am currently creating a windows service that calls a class. the class access a file in a certain folder to create a instance of this file(dll). When I call the dll from a console application it works very well with no problems.
When I do call it from a windows service it gives me an invocation exception error. What I did find was that the class has a problem with the file in the specific directory. I have checked user rights and ran the service as an administrator but it cannot access the file.
A friend of mine has precisely the same problem but on totally different sets of code. The only thing the same between his code and mine is that it is both services calling a dll trying to open a file in a specific location.
Can anyone please help me out here.
regards
Nic Scheepers
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In the Service snap in, bring up the properties for the service you have started. There is a log on tab, which identifies who the service logs in as. Check to see what this value is. Then, assign read/write privileges to that user to the directory that the file is present in.
the last thing I want to see is some pasty-faced geek with skin so pale that it's almost translucent trying to bump parts with a partner - John Simmons / outlaw programmer
Deja View - the feeling that you've seen this post before.
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Hi there
Thank you for the reply.
This is one of the first things I did and I used both an administrators username and my username to start the service with in the log-on tab. I also made sure they had the priveleges to read and write to the specific directory.
Another question relating to this : Can you use the "Assembly.Loadfrom" method in a service. Tis is basically where it originates from.
Regards
Nic Scheepers
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Hi Guys,
Does anyone know how to deal with leagcy binary .dat files in .Net i have a few systems in C that write to .dat files 1 example is the following structure:
typedef struct AccountIndexData {
char Account[12];
long Record;
} AccountIndex;
typedef struct AccountDataFormat{
char Account[12];
char Company[32];
char Address[4][32];
char TelFax[2][18];
char Contact[22];
int PriceLevel;
int Stop;
int Cash;
long First;
long Last;
long Limit;
long Balance[5];
int Lock;
} AccountData;
My question is how do i handle these files in & retrieve information from a .Net application
Thanks
Keith
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Try looking at the System.IO.BinaryReader class.
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If the file is a flat file (like old C days), just create a class, similar to structure above.
Then use a streamReader to read the info, and fill the object:
Something like:
while ((line = sr.ReadLine()) != null)
{
myClass.myProperty1 = line.Substring(0,5);
myClass.myProperty2 = line.Substring(5,2);
//etc..etc..
}
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ednrgc wrote: If the file is a flat file (like old C days), just create a class, similar to structure above.
Yes it is a flat file.
Thanks for the help i'll give that a go
Keith
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Use BinaryReader and its specialized methods such as ReadInt16 as appropriate.
Do not assume you can read everything using strings, that will fail due to terminating nulls,
and the difference between ASCII and Unicode.
Also be careful when reading characters:
if the file got created by a C/C++ program using char (8 bit each), you should read each char
with ReadByte and convert to Char (which takes 16-bit).
Luc Pattyn
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Does anybody know why is taking 4 seconds for a call to Connect(host, port) to complete?
If I try the same from a command prompt the connect is instantaneous.
The instance of the TcpClient class is created in 14-18 milliseconds but the Connect
is annoying ....
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i have a windows application. which contents a button and a list box when i click the button the list box is filled with the name of file. then i again copy some more file to directory when i click the button again then the name of same file and new file is displayed again which is obviuos.but what i want is in the secnd click it display only the files whic are copied on second instance i.e all the file in directory with out repetation.
well my problem is quiet complex if you have any idea regarding seacrhing in array where getfiles returns would be more appreciable.
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After the 1st process of the files, clear the listbox.
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As Ed Said Just clear the list box but do this before any processsing. So the first line of code in your button event would be:
ListBox.Items.Clear();
Keith
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hi
i want to use iframe tag and set src to one htm file that have picture, but when i use this tag,pictures is not appeare in my webpage,but when i use htm file in browser, it show pictures. where is the problem and how to full my htm file(with images) in ?
note : the images folder already exist in my project.
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Post your code, so we can see where the problem is.
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I do an electronic project, and I would like to know how can I communicate to usb port with c# (in visual studio program).
I only know that I need a dll file and I don't know where can I find it. 
tankes,guy.
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