C#

Re: How to format highlighted text in textbox?

9-Jun-05 17:19

yeah, you have to use a richTextBox. and with the rich formatting, you could do something like:

richTextBox1.SelectionColor = colors.blue;

that sort of thing.

Julianne_juju10-Jun-05 12:33

Julianne_juju

10-Jun-05 12:33

Thank you for your reply.
Unfortunally, my code is for a web application but not windows so that I cannot use richtextbox.
And I work on vs2003, which doesnt provide "selectedtext" function for textbox.

But I found a way could solve the problem by javascript pbbly. Smile | :)

A string thing i cannot figure out

sameerhanda9-Jun-05 10:11

sameerhanda

9-Jun-05 10:11

I have an Excel automation engine that collects data from a specified cell in the Execel worksheet. Well when I get the data back and parse it based on a "," I get the following string from the worksheet "\"devbng:BNGDetail\"". Well I need to get rid of the '\' and the extra '"'. Well I have tried everything i could think of
I wrote the following

_serverName.Replace("\\","");
_serverName.Replace('\"',' ');

But no avail, well any help would be greatly appreciated.

Thanks

Re: A string thing i cannot figure out

Christian Graus9-Jun-05 12:20

Christian Graus

9-Jun-05 12:20

There's a Remove method also, isn't there ?

Christian Graus - Microsoft MVP - C++

Re: A string thing i cannot figure out

Jack Bond13-Jun-05 2:14

Jack Bond

13-Jun-05 2:14

Ignore this entire post if _serverName is not a string object.

Strings are immutable, so the code you have now is essentially a no-op, i.e. it's returning a new instance of a string that is not being stored by anything, and the original value of _serverName is unchanged. Have you tried:

_serverName = _servername.Replace("\\", "");

setting an object to null, what happens?

devin1239-Jun-05 9:56

Re: setting an object to null, what happens?

9-Jun-05 9:56

Hi,

After I am done with the object, when I set that object to null, what I am doing there. (Is it, I am setting manually no references to the object or I am reclaming the memory used by the object or I am doing both)

Thanks
Devin.

Colin Angus Mackay9-Jun-05 12:14

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9-Jun-05 12:14

devin123 wrote:
After I am done with the object, when I set that object to null, what I am doing there.

You are setting the reference to the object to null, not the object itself. If there are no references to an object the garbage collector can remove the object from memory. If the reference is a local variable then when the method goes out of scope the reference will no longer exist and the object (assuming no other references) will get cleaned up.

Does this help?

Re: setting an object to null, what happens?

devin1239-Jun-05 12:21

How to reclaim the memory manually

9-Jun-05 12:21

That helped me.

devin1239-Jun-05 9:54

9-Jun-05 9:54

Hi,

I know GC does memory management manually. If i want to manually reclaim the memory of an object, how can I do it.

Thanks
Devin

Colin Angus Mackay9-Jun-05 12:15

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9-Jun-05 12:15

Of a single object, you cannot.

In general, you can call GC.GarbageCollect() to force a garbage collection, however this is not recommended as the system is tuned to perform this at optimal times.

devin1239-Jun-05 12:30

9-Jun-05 12:30

Then what does, GC.Collect() do
what is differnce between them

Devin

Colin Angus Mackay9-Jun-05 12:33

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9-Jun-05 12:33

Sorry, I was going from memory. I meant GC.Collect()

From MSDN: GC.Collect()[^]: Forces garbage collection for all generations.

devin1239-Jun-05 12:43

9-Jun-05 12:43

I think using GC.Collect we achieve finalization not memory reclaimation. Is I am right. Explain.

Colin Angus Mackay9-Jun-05 12:49

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9-Jun-05 12:49

It will reclaim the memory. If an object requires it then the finaliser will be called first. The finalisation process is inefficient and objects that have finalisers will also have a Dispose() method. So, you should call Dispose() on an oject if it has that method. The Dispose() method will generally suppress the finalisation on that object making garbage collection more efficient.

devin1239-Jun-05 13:56

9-Jun-05 13:56

Thka colin for your help.

subdirectories

Pyro Joe9-Jun-05 9:25

9-Jun-05 9:25

hey everyone,
I've been searching for a way to get an array that includes every directory within a selected directory. say the parent directory was called "hello", I want to get every directory, even the directories within the directories returned. (i.e. hello/hieveryone/helloagain/). There is a "Directory.GetDirectories" method, but this only returns the directories immediately below the selected one. How do I get all the ones below that one, and below that one and send them to an array? all the levels below would be nice, but atleast a minimum of 12 levels below the directory. sry for the wordiness, I didn't know how else to word it. thanks a lot for your help!

Christian Graus9-Jun-05 12:21

Christian Graus

9-Jun-05 12:21

You need to write a recursive function, that is, one that 'collects' all the directories within your main one, and calls itself for each, so it keeps drilling down.

Christian Graus - Microsoft MVP - C++

Colin Angus Mackay9-Jun-05 12:23

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9-Jun-05 12:23

Pyro Joe wrote:
How do I get all the ones below that one, and below that one and send them to an array?

By doing a recursive call like this:

public ArrayList Directories(DirectoryInfo startDir)
{
    ArrayList list = new ArrayList();
    DirectoryInfo[] dirs = startDir.GetDirectories();
    foreach(DirectoryInfo dir in dirs)
    {
        list.Add(dir);
        list.AddRange(Directories(dir));        
    }  
}

See how the Directories() calls itself, but for the subdirectory.

Does this help?

DISCLAIMER: I typed the code directly in so there may be some syntax errors

Pyro Joe9-Jun-05 17:15

9-Jun-05 17:15

yeah, thanks! I was gonna try to use a while loop, but that could get really complex logic-wise. but the foreach thing is really handy. thanks!

Pyro Joe10-Jun-05 9:59