Re: Why do we need to serialize data? - C# Discussion Boards

Re: Can WinForm app use Flash as background?

Eddy Vluggen28-Sep-09 4:43

28-Sep-09 4:43

Embed your flash in a webpage and show it in a WebBrowser[^] control. Set the Dock property to DockStyle.Fill Smile | :)

I are Troll Smile | :)

Re: Can WinForm app use Flash as background?

daveice28-Sep-09 18:02

daveice

28-Sep-09 18:02

But how can I draw some text and image above webbrowser?

Re: Can WinForm app use Flash as background?

Eddy Vluggen28-Sep-09 21:28

Eddy Vluggen

28-Sep-09 21:28

You can drop controls on the webbrowser. Most won't be transparent though.

Why do we need to serialize data?

Lijo Rajan28-Sep-09 3:51

Lijo Rajan

28-Sep-09 3:51

Hi all,

Can any one plse tell me the exact use of serialization? in which scenario
we can use it?

Regards
Lijo

Re: Why do we need to serialize data?

OriginalGriff28-Sep-09 3:55

OriginalGriff

28-Sep-09 3:55

Have you considered "File...Save"?

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

Re: Why do we need to serialize data?

Not Active28-Sep-09 3:57

Not Active

28-Sep-09 3:57

Honestly, is this[^] really so difficult for you WTF | :WTF:

only two letters away from being an asset

Re: Why do we need to serialize data?

vivasaayi28-Sep-09 3:58

vivasaayi

28-Sep-09 3:58

You may want to read the Wikipedia article.

http://en.wikipedia.org/wiki/Serialization[^]

http://aspalliance.com/983[^]

Re: Why do we need to serialize data?

Pete O'Hanlon28-Sep-09 4:18

Pete O'Hanlon

28-Sep-09 4:18

Lijo Rajan wrote:
Can any one plse tell me the exact use of serialization? in which scenario
we can use it?

Well, one way that serialisation is really useful is if you want to sell something over a period of weeks. What you do, is run something up to the a point known as the cliff hanger; at this point, you stop and leave people hanging until the next week where you run the next point in the serialisation.

"WPF has many lovers. It's a veritable porn star!" - Josh Smith

As Braveheart once said, "You can take our freedom but you'll never take our Hobnobs!" - Martin Hughes.

My blog | My articles | MoXAML PowerToys | Onyx

Re: Why do we need to serialize data?

Luc Pattyn28-Sep-09 5:53

Luc Pattyn

28-Sep-09 5:53

You may be confusing with this[^].

Smile | :)

Luc Pattyn

Local announcement (Antwerp region): Lange Wapper? Neen!

Re: Why do we need to serialize data?

Pete O'Hanlon28-Sep-09 8:42

Pete O'Hanlon

28-Sep-09 8:42

Confused? You will be.

"WPF has many lovers. It's a veritable porn star!" - Josh Smith

As Braveheart once said, "You can take our freedom but you'll never take our Hobnobs!" - Martin Hughes.

My blog | My articles | MoXAML PowerToys | Onyx

Open New Mail

tamir90128-Sep-09 3:43

tamir901

28-Sep-09 3:43

Hi,

When i click on a button a new mail page is open,
and at the body of the mail i put the text that was writen at richtextbox.

my problem is,
when the new mail page is open the text is writen at the same line.
How can i put the text exactly as it writen at the richtextbox.

here is my code:

<br />
            string mailTo = "";<br />
            string body = richTextBox2.Text;<br />
            string subject = textbox1.text;<br />
<br />
            string filename = string.Format("mailto:{0}?subject={1}&body={2}", mailTo, subject, body);<br />
<br />
            Process myProcess = new Process();<br />
            myProcess.StartInfo.FileName = filename;<br />
            myProcess.StartInfo.UseShellExecute = true;<br />
            myProcess.StartInfo.RedirectStandardOutput = false;<br />
            <br />
            myProcess.Start();

10x

Re: Open New Mail [modified]

Not Active28-Sep-09 3:55

Not Active

28-Sep-09 3:55

Try using the System.Net.Mail[^] classes, particularly MailMessage.

MailMessage msg = new MailMessage();
msg.From = "from@from.com";
msg.To = mailTo;
msg.Subject = subject;
msg.Body = body;
msg.IsBodyHtml = true;

only two letters away from being an asset

modified on Monday, September 28, 2009 11:54 AM

Re: Open New Mail

tamir90128-Sep-09 5:01

tamir901

28-Sep-09 5:01

Mark Nischalke wrote:
msg.BodyFormat = MailFormat.Html;

I don't have BodyFormat at msg object... Frown | :(

Re: Open New Mail

Not Active28-Sep-09 5:07

Not Active

28-Sep-09 5:07

It's a property on the MailMessage class, what do you mean you don't have it? Confused | :confused:

only two letters away from being an asset

Re: Open New Mail

tamir90128-Sep-09 5:28

tamir901

28-Sep-09 5:28

Mark Nischalke wrote:
It's a property on the MailMessage class, what do you mean you don't have it?

This is what i get on the line-

msg.BodyFormat = MailFormat.Html;

Cannot implicitly convert type 'string' to 'System.Net.Mail.MailAddress'

'System.Net.Mail.MailMessage' does not contain a definition for 'BodyFormat' and no extension method 'BodyFormat' accepting a first argument of type 'System.Net.Mail.MailMessage' could be found (are you missing a using directive or an assembly reference?)

'MailFormat' does not exist in the current context

Re: Open New Mail

Not Active28-Sep-09 5:54

Not Active

28-Sep-09 5:54

My fault the namespace should be System.Net.Mail, not System.Web.Mail and use IsBodyHtml = true

only two letters away from being an asset

Re: Open New Mail

tamir90128-Sep-09 9:49

tamir901

28-Sep-09 9:49

thanks,
can you please tell me how i open this at a new outlook mail?

RSA big numbers computation -> raise to power, how?.

AWriter28-Sep-09 3:37

AWriter

28-Sep-09 3:37

Hello to all!
I want to implement in C# the RSA algorithm to encrypt and decrypt some data. I've studiet a lot already about this algorithm, but the only thing that I don't understand how to work with very big numbers in C#, even in C++ or C.

The problem is, that in our days, the recommended minimal lenght of the RSA key is 1024 bits. So, the algorithm says:

* n = pq, where p and q are distinct primes.
* phi, φ = (p-1)(q-1)
* e < n such that gcd(e, phi)=1
* d = e-1 mod phi.
* c = me mod n, 1<m<n.
*="" m="cd" mod="" n.

this="" was="" taken="" from="" here:="" http:="" www.di-mgt.com.au="" rsa_alg.html#note1

so,="" the="" keys="" are="" combination:
cpub="(e," n);
cpriv="(d," n);

well,="" ok,="" lets="" say="" for="" example="" that="" we="" generate="" some="" numbers="" and="" obtain="" keys:

public="" key:="" 3,9312243439
private="" 6208033627,9312243439

the="" algorith="" says="" to="" encrypt="" data,="" you="" need="" do:

c="(m" at="" power="" e)="" then="" do="" (mod="" n),="" or="" in="" c#="" like:="" c="(Math.Pow(m," e))="" %="" n;

to="" decrypt="" data:

m="(C" d)="" d))="" n;

so,="" form="" here="" question:

<b="">How to raise a message, lets say the encrypted '10' to our d, that is 6208033627, to obtain the original message?

And after all, our d is only 33 bits length? Tha maximal System.Double value is some 10 at the 308 power.

What I don't understand? What I'm missing? Can anyone explain me this?
I will apreciate your explanation! Thank you in advance!

Re: RSA big numbers computation -> raise to power, how?.

Henry Minute28-Sep-09 5:04

Henry Minute

28-Sep-09 5:04

To do anything like these operations in practically any language in use today you will need to get, or write your own, 'big number library'.

There are several around for the .NET languages and a quick Google will find most of them. Be warned though, some are better than others, you'll have to try them, to find one that suits.

I understand that .NET 4.0 has one built in.

Henry Minute

Do not read medical books! You could die of a misprint. - Mark Twain
Girl: (staring) "Why do you need an icy cucumber?"
“I want to report a fraud. The government is lying to us all.”

Re: RSA big numbers computation -> raise to power, how?.

AWriter28-Sep-09 20:54

AWriter

28-Sep-09 20:54

So, the main idea is that really the numbers are raised to a power of 1024 bits? Huh, then this is a problem...

using data Adater to save in acess db, c# - update 3 tables

TGiril28-Sep-09 2:53

TGiril

28-Sep-09 2:53

Hi All
I have loaded 3tabes to my application. after the work is done, I wasnt to save it all.
using foreach(is there a better way?) I recreated from my different class objects 3 datatables.

now I have the tables, I think I added them to new ds
DataSet ds= new DataSet();
ds.Tables.Add(emp);
ds.Tables.Add(managers);
ds.Tables.Add(empToManagers);

did I do it write?
no my main question: in my db , I have 3 tables. some of the lines has been changed, deleted or some lines are new. what is the best way to update the db, without checking every line my self, I tried and got lost with the sql.
someone tokd me I can use adapter, but how?

(when I open th data, It is easy to se adapter
public DataSet GetDataSet(string tblName, string sql, DataSet ds)
{
adapter.SelectCommand.CommandText = sql;
adapter.Fill(ds, tblName);
return ds;
}
)

tnx

Repeating the question won't change the answer

Not Active28-Sep-09 3:48

Not Active

28-Sep-09 3:48

You have already asked this same question and received an answer http://www.codeproject.com/Messages/3213543/using-data-Adater-to-save-in-acess-db-csharp.aspx[^]

only two letters away from being an asset

problem with datetime in sqlCE

E_Gold28-Sep-09 1:23

E_Gold

28-Sep-09 1:23

hi
i have sqlCE DataBase, i have Tdate field (datetime)

i notice that his format is: MM/DD/YYYY

in my C# program i work with date in: DD/MM/YYYY format.

how i can insert to my sqlCE data base my C# format ?

thank's in advance

Re: problem with datetime in sqlCE

Ashfield28-Sep-09 1:31

Ashfield

28-Sep-09 1:31

Simple answer, you don't. The database actually stores the date (and time) as a number, not in any format. You need to do the formatting within your application.

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

Re: problem with datetime in sqlCE

Eddy Vluggen28-Sep-09 1:52

Eddy Vluggen

28-Sep-09 1:52

Dates don't have a specific format.

One simply writes the value "as date" to a "date field" in the database. It will be saved in a format-independent way. It's formatted as soon as you look at it. Thus, you should format the data after reading from the database, as soon as you display it.

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