C# Discussion Boards - CodeProject

How to write array of strings on a binary file

28-Oct-06 1:50

I think you mean shell extensions.

These series of articles may be a good start. Click here[^].

Regards

Bahaa Hany28-Oct-06 1:15

Bahaa Hany

28-Oct-06 1:15

that the code i wrote
FileStream w = new FileStream("d:\\HufmanCompression.txt",FileMode.Create);
BinaryWriter writer = new BinaryWriter(w);
for (i = 0; i < array.Length;i++ )
writer.Write(array[i]);
w.Close();

The output i need is to write a binary file with a very small size(it is a compression prog)

thanx for ur time

Guffa28-Oct-06 1:43

28-Oct-06 1:43

And the problem is...?

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Nader Elshehabi28-Oct-06 1:46

28-Oct-06 1:46

I don't seem to see a question in your message? What's your problem exactly? Your code is one way of doing it. What's wrong with it?

Ps.
Make sure to call writer.Flush() at the end of your code before slocing the stream.

Regards

S. Senthil Kumar28-Oct-06 3:36

S. Senthil Kumar

28-Oct-06 3:36

Doesn't Close flush the stream?

Regards
Senthil [MVP - Visual C#]
_____________________________
My Blog | My Articles | WinMacro

Nader Elshehabi28-Oct-06 3:49

28-Oct-06 3:49

Well, in his case Close() will flush the FileStream, but not the BinaryWriter. So I suggested that he'd call writer.Flush() to flush the BinaryWriter too.

Regards

Guffa28-Oct-06 4:29

28-Oct-06 4:29

But he's closing the writer. That flushes the writer, closes the writer, flushes the stream and closes the stream.

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Nader Elshehabi28-Oct-06 4:40

28-Oct-06 4:40

IIRC he called

w.Close();

and w is the FileStream. How does that close the BinaryWriter -named in his code writer-?

Regards

Guffa28-Oct-06 5:10

Get Table Fields Description

28-Oct-06 5:10

Yes, you are right in that. I didn't read the code thorougly enough, and was confused by the naming of the variables and what the code really should have been doing. He closes the stream when he should really close the writer instead.

The best way is of course to close the writer, not the stream:

writer.Close();

If you close the stream, you can solve the problem with the buffering in the writer by flushing the writer first, but it still leaves the writer in a confused and unusable state when the stream is closed.

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freshonlineMax28-Oct-06 0:55

freshonlineMax

28-Oct-06 0:55

Hi I want to get sql server table fields Description, I want to use them for my datagrids header text.
So how can i get field description from database table?
Tanks

Nader Elshehabi28-Oct-06 1:53

28-Oct-06 1:53

freshonlineMax wrote:
I want to get sql server table fields Description

What makes you think there ought to be one? Take a look at DataColumn class in your documentation, you'll see it has no description member. I usually name my columns in the database in a human friendly way so that I'd name the DataGridColumns with the same string using a loop -with some modifications of course like removing underscores-.

Regards

Robert Rohde28-Oct-06 3:33

Robert Rohde

28-Oct-06 3:33

Just because the DataColumn class doesn't have such a property doesn't mean there is now way to get this info...

Robert

Nader Elshehabi28-Oct-06 3:51

28-Oct-06 3:51

Robert Rohde wrote:
doesn't mean there is now way to get this info...

And what other ways do you know to get that information? Also when you make a Sql table where do you put that information?

Regards

Re: Get Table Fields Description [modified]

freshonlineMax28-Oct-06 8:03

freshonlineMax

28-Oct-06 8:03

Dear Nade Elshahabi
Please don't answer your friend's questions with an another question and let others to help and show the best way.
I had a code to fetch database informations, but i lose it in my harddisk.
If you don't have information about a subject you don't have to answer.
I know you want to help, but others me be think, my problem have been solved.

Regards

Nader Elshehabi28-Oct-06 8:15

28-Oct-06 8:15

freshonlineMax wrote:
Please don't answer your friend's questions with an another question

I wasn't asking for an answer. I was proving my point of view that there is no description for Sql columns. If Robert knew how to get it he would have posted the answer. BTW where did you put that description anyway?!!

freshonlineMax wrote:
I had a code to fetch database informations, but i lose it in my harddisk.

Database information?? You mean that present in the INFORMATION_SCHEMA? Check the INFORMATION_SCHEMA.COLUMNS table and see if it has a description field!!

freshonlineMax wrote:
If you don't have information about a subject you don't have to answer.

freshonlineMax wrote:
I know you want to help, but others me be think, my problem have been solved.

Sure! And forgive me -turely- if I blocked someone else from answering you. Your post is still there. He who has answer, let him benefit us all!!

-- modified at 14:26 Saturday 28th October, 2006

Regards

freshonlineMax28-Oct-06 19:44

freshonlineMax

28-Oct-06 19:44

Hello Again
Dear friend 'Nader Elshehabi'
I solve my problem my self! Cool | :cool:

Now i can help myself, you(if agree) and others (if it's useful!)

Just run below query in sqlServer:

SELECT     objtype, objname, name, value
FROM         ::fn_listextendedproperty(NULL, 'user', 'dbo', 'table', 'YourTablename', 'column', DEFAULT) AS fn_listextendedproperty_1

If we want to get special column's description, we should type column's name instead of 'DEFAULT'. Field 'value' refers to column's description.

Regards Smile | :)

Robert Rohde28-Oct-06 19:16

Robert Rohde

28-Oct-06 19:16

Hi,

maybe this[^] is a good start.

Robert

Creating minidumps for windows forms in c#.net 2.0

lainoo28-Oct-06 19:35

lainoo

28-Oct-06 19:35

you can retrieve data from SQL select :
select b.name,c.value from syscolumns b, sysobjects A,sysproperties c where a.name ='bed' and a.id=b.id and b.id=c.id and b.colorder=c.smallid

then use this rows to modify your datagridview column tex

if you can design this, i may design class for you:

SetDatagridColumnTextBySqlDescribe(DatagridView dview)

Think ...

pranu_1327-Oct-06 23:06

pranu_13

27-Oct-06 23:06

Hi all,

Can anyone tell me how do we create minidumps for crashes and hangs in windows applications c#.net 2.0.

I have used ThreadException handler and AppDomain.CurrentDomain.UnhandledException handler to catch exception and log the information.

But what can be done in case of a crash or hang in application.
Can i use ADPlus for this, if so how to implement it??????..........

Thanks,
Pranu.

Re: Creating minidumps for windows forms in c#.net 2.0

Nader Elshehabi27-Oct-06 23:20

Session Problem. Pls Help

27-Oct-06 23:20

If your program crashes you won't be able to use it to dump its own memory now, would you? Big Grin | :-D

Anyway, if you implement exception catching well in your program, it shouldn't crash or hang -specially in a managed environment like .Net where you can't screw up with pointers-, it's unhandled exceptions that makes your program crash, and windows Xp or later provides an automatic memory dump for your application. Most user won't know how to extract the data from the report and send it to you, but if Hex dump is one of your favourite languages you can simulate the scenario and read it as you please -not convenient as you can see-.

pranu_13 wrote:
Can i use ADPlus for this, if so how to implement it??????

Read this[^].

Regards

subrata.jana27-Oct-06 21:44

subrata.jana

27-Oct-06 21:44

Hi
I have 2 page 1)Master 2)Pop-Up(window.open). Now i open 2 of this master page. From 1 of them i open this popup which is part of same session and copy the url and past it in other opened master page which has different session. Now if i press Go the the current session is being modified by the popup-ups session.

Why is it so ?? Why session variable become null. I have checked google and taken all possible measure still no luck.

Pls help me.

Thanks in advance.

Re: Session Problem. Pls Help

Guffa28-Oct-06 1:34