C# Discussion Boards - CodeProject

Morgs Morgan7-Dec-09 5:00

7-Dec-09 5:00

Hi everyone
I have an XML file which I can read from using XmlDocument, XPath and XmlTextReader and all is well this far.
But is there a way that I can write data to an XML file, lets say entered from textboxes using the XmlDocument class? Confused | :confused:

Please I will appreciate any kind of help.. D'Oh! | :doh:

Re: XML

J4amieC7-Dec-09 5:17

J4amieC

7-Dec-09 5:17

XmlDocument, or (surprise, surprise) XmlTextWriter

Re: XML

PIEBALDconsult7-Dec-09 6:23

PIEBALDconsult

7-Dec-09 6:23

XmlDocument has a Write method, doesn't it?

Re: XML

wenjinxu7-Dec-09 23:05

wenjinxu

7-Dec-09 23:05

XmlDocument xmlDoc;
.......
change xmldoc
.......
xmlDoc.Save(filePath);

2D array to Image

umesh adiga7-Dec-09 4:55

umesh adiga

7-Dec-09 4:55

Hi
I am trying to convert a 2D rectangular array (type [,]) to Image.... I saw examples for 1D array to Image and 2D array of type[][] to Image. I am new to C#. Please some one direct me to a site or code snapshot that shows me how to do it.

Thanks a lot

umesh

Re: 2D array to Image

Md. Marufuzzaman7-Dec-09 9:09

Md. Marufuzzaman

7-Dec-09 9:09

Try like the following:
<pre>

e.Graphics.DrawImage(New Bitmap(tile(TilePos.X, TilePos.Y)), TilePos.X * 30, TilePos.Y * 30)
</pre>

Thanks
Md. Marufuzzaman

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Visual Studio Addin

LimitedAtonement7-Dec-09 3:53

LimitedAtonement

7-Dec-09 3:53

Dear Sirs,

Who is the pro at creating Visual Studio addins? I don't want to use one of those canning programs, but rather I would like to write one from scratch. There seems to be a lack of examples and the documentation is `so-so.' Specifically I'm trying to change the background color in a code window, but only a certain portion of the code window. Let me know if you know anything about this, or provide a link to some good documentation or a tutorial. Thanks!

In Christ,
Aaron Laws

http://ProCure.com

Need help in opening cash drawer

yousaf287-Dec-09 3:45

yousaf28

7-Dec-09 3:45

I have developed a POS system. I am having problem opening the cash drawer that is attached with receipt printer. I have searched alot but i am not been able to find the right code that can work for me. I am using CBM 1000 receipt printer. Is there any one who has done such app, please help/assist me.

Thanks

debit & credit question

Jassim Rahma7-Dec-09 2:12

Jassim Rahma

7-Dec-09 2:12

i have an off topic question and want to know your advise..

I am using C$ and i want to know what's recmonnaded in order to have the best result?

should I save the debit and credit in a table in the same field (trxn_amount with + or - sign? or save them in separate fields (trx_amount_debit and trxn_amount_credit?

Re: debit & credit question [modified]

Eddy Vluggen7-Dec-09 2:52

Eddy Vluggen

7-Dec-09 2:52

jrahma wrote:
should I save the debit and credit in a table in the same field (trxn_amount with + or - sign? or save them in separate fields (trx_amount_debit and trxn_amount_credit?

What do you mean with "best result"? From a developers' perspective, things that are the same go into the same table. Splitting them into separate tables gives no advantages that I can think of.

--edit--

I'd simply derive the credit/debit type from the amount, e.g., everything positive is credit. Developers don't store the same information twice. So, from a dev's view, storing the credit/debit type is redundant if it's value can be derived from the stored information.

Now, I have been told that this is inconvenient for reporting, and that it's rather convenient to have a flag in the database that indicates the direction of the transaction. The thing I missed, is that I could be credited $-1, and that would be something completely different from being debited a dollar.

I are Troll Suspicious | :suss:

modified on Monday, December 7, 2009 11:38 AM

Re: debit & credit question

Sunil G7-Dec-09 2:56

Sunil G

7-Dec-09 2:56

You should seperate field to store debit/credit type.
Value should be either Dr or Cr

Re: debit & credit question

yousaf287-Dec-09 3:50

yousaf28

7-Dec-09 3:50

save it in a same table with +ve and -ve sign Smile | :)

Re: debit & credit question

Shameel7-Dec-09 7:23

Shameel

7-Dec-09 7:23

Use separate columns to store debit and credit values.

If you are asked to get totals of debits and credits, you just do a SUM() without a need for WHERE clause.

Since the values have a wide distribution of data, indexes created on these columns tend to be larger. The separate column solution avoids creation of indexes on these columns.

Re: debit & credit question

Gerry Schmitz7-Dec-09 18:42

Gerry Schmitz

7-Dec-09 18:42

"Classic" bookkeeping / accounting reports and forms always show the Debits and Credits in separate columns.

While your calculations for figuring out "account balances" may require a bit more work, your reporting requirements, GUI / Forms design, and batch balancing are greatly simplified.

(The DBA types will shriek in horror, however)

Determine Least Significant Digits

MumbleB7-Dec-09 2:08

MumbleB

7-Dec-09 2:08

Hi Guys. I need to know how to determine the least significan't digits from a number. Now, I'm calculating a bunch of numbers and the total comes to say 17 digits in total. I need to only use ythe last significant 12 digits from the 13 digits. HOw do I determine what the least significant digits are?

As an example:
The calulated value is: 865807311427710

From this number I want to only obtain 807311427710.

The problem I am having is that the calculated value can be any amount of digits long.

Any help will be greatly appreciated.

Thanks

Excellence is doing ordinary things extraordinarily well.

Re: Determine Least Significant Digits

OriginalGriff7-Dec-09 2:13

OriginalGriff

7-Dec-09 2:13

Brute force and ingnorance approach: Convert to a string, use substring to get the right hand end.

No trees were harmed in the sending of this message; however, a significant number of electrons were slightly inconvenienced.

This message is made of fully recyclable Zeros and Ones

"Rumour has it that if you play Microsoft CDs backwards you will hear Satanic messages.Worse still, is that if you play them forwards they will install Windows"

Re: Determine Least Significant Digits

MumbleB7-Dec-09 2:19

MumbleB

7-Dec-09 2:19

Sounds easy enough but the problem is that I have no idea how long the string will be. It could be 20 digits, 30 digits, 15 digits or 12 digits. Sigh | :sigh:

Excellence is doing ordinary things extraordinarily well.

Re: Determine Least Significant Digits

OriginalGriff7-Dec-09 2:28

OriginalGriff

7-Dec-09 2:28

So? Why would you care?
number.ToString() doesn't care how long it is.
string.Length tells you how long the other one is.
You know how many digits you want to keep...

Re: Determine Least Significant Digits

MumbleB7-Dec-09 2:40

MumbleB

7-Dec-09 2:40

Aye, I got it. Below is what I have done.

FinalHash = homingTotal + OverFlow + ContraHash;
string hashfinal = Convert.ToString(FinalHash);
int length = hashfinal.Length;
int remove = length - 12;
outhash = hashfinal.Substring(remove, 12);
finalhashtotal = Convert.ToInt64(outhash);

Excellence is doing ordinary things extraordinarily well.

Re: Determine Least Significant Digits

Covean7-Dec-09 2:29

Covean

7-Dec-09 2:29

How about

long lDigits = lCalulatedVal % 1000000000000;

this should do the trick.

Greetings
Covean

Convert a structure to a byte array (C# 3.5)

stefanidou7-Dec-09 1:30

stefanidou

7-Dec-09 1:30

Hello

Could you please help me to make a convertion from a structure to byte array?
Is there any function to do that?
I would appreciate if you could give a short sample of code Smile | :)

Thanks

Re: Convert a structure to a byte array (C# 3.5)

Abhinav S7-Dec-09 1:34

Abhinav S

7-Dec-09 1:34

http://www.developmentnow.com/g/36_2009_10_0_0_205962/How-to-convert-a-structure-to-byte-array-.htm[^]

Generating a Unique ID.

farshad1237-Dec-09 1:00

farshad123

7-Dec-09 1:00

I want to generate a Unique ID as this. Unique ID Should Look like this "CID-00001,CID-00002,CID-00003.....".

I need a class to generate this. First i need to check the database for the previous ID.

If there is No Data it should generate the ID as "CID-00001" else it get the last ID and increment it by one and store it to the database.
I need the C# code for this.

Thank you.

Re: Generating a Unique ID.

dan!sh 7-Dec-09 1:03

dan!sh

7-Dec-09 1:03

Have you tried anything?

50-50-90 rule: Anytime I have a 50-50 chance of getting something right, there's a 90% probability I'll get it wrong...!!

Re: Generating a Unique ID.

Ashfield7-Dec-09 1:10

Ashfield

7-Dec-09 1:10

Yes, posted a question here in the hope of somebody giving him the code Smile | :)

Bob
Ashfield Consultants Ltd
Proud to be a 2009 Code Project MVP

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