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what is com?

md_refay23-Jul-07 1:10

md_refay

23-Jul-07 1:10

i need to know waht is com ?

md_refay

Re: what is com?

ekynox23-Jul-07 1:18

ekynox

23-Jul-07 1:18

Did u try google, can't be that hard to research it
http://www.google.com/search?hl=en&rlz=1B3GGGL_enAU232AU232&q=component+object+model&btnG=Search

Re: what is com?

leckey23-Jul-07 3:06

leckey

23-Jul-07 3:06

He asked the other day what ajax is. I don't think he's heard of Google.

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Re: what is com?

ekynox23-Jul-07 12:01

ekynox

23-Jul-07 12:01

its actually quite amusing in his profile he has listed COM as one of his interests. Another person who needs to be spoonfed answers I'm just wondering what sort of software developers enjoy being spoonfed.

Re: what is com?

Colin Angus Mackay23-Jul-07 1:20

Colin Angus Mackay

23-Jul-07 1:20

What is the context?

COM can be the top level domain for companies
COM can be the serial port
COM can be Component Object Model

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How to differentiate between dates?

help as an alias23-Jul-07 1:00

help as an alias

23-Jul-07 1:00

Hi All,

Plz give code me code to take a difference between two date (difference must be in the days) . Big Grin | :-D

Thanx in advance,

Nikesh Kr. Yadav

CSS Infotech
Sec- 31
Gurgaon,
Haryana(India)

Re: How to differentiate between dates?

originSH23-Jul-07 1:04

originSH

23-Jul-07 1:04

Timespan timespan = (dateTime1 - dateTime2);
timespan.TotalDays;

Re: How to differentiate between dates?

help as an alias23-Jul-07 1:05

help as an alias

23-Jul-07 1:05

thank you

Nikesh Kr. Yadav

CSS Infotech
Sec- 31
Gurgaon,
Haryana(India)

Re: How to differentiate between dates?

originSH23-Jul-07 1:47

originSH

23-Jul-07 1:47

reading xml file in C#

S Palip23-Jul-07 0:57

S Palip

23-Jul-07 0:57

hi,

how to read the following xml file in C#. Plz can any one help.

<record>
<student id="1">
<class> 5

Science

<unit>5
<street> river street

<aa>
<bb>
<footballteam> MU

<student id="2">
<class> 10

Mathematics

<unit>1
<street> lake street

<aa>
<bb>
<footballteam> RM

Thanx and regards,

pls Confused | :confused:

Re: reading xml file in C#

Christian Graus23-Jul-07 1:00

Christian Graus

23-Jul-07 1:00

You need to check 'Ignore HTML tags' in order to post XML. The answer is that the XmlDocument class or XmlDataDocument class will read this file, if it's on disc, or will accept it as a string. What I think you mean is, how do you access information in the file ? For that, you need to learn XPath, and the XML DOM. XPath is the language used to search for XML nodes, and the DOM is the standard interface that the aforementioned classes offer for searching, and modifying XML.

Christian Graus - Microsoft MVP - C++

"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )

Re: reading xml file in C#

S Palip23-Jul-07 15:21

S Palip

23-Jul-07 15:21

- <record>
- <student id="1">
<Class>5</Class>
<section>Science</section>
- <Address>
<unit>5</unit>
<street>river street</street>
</Address>
<aa />
<bb />
<FootballTeam>MU</FootballTeam>
</student>
- <student id="2">
<Class>10</Class>
<section>Mathematics</section>
- <Address>
<unit>1</unit>
<street>lake street</street>
</Address>
<aa />
<bb />
<FootballTeam>RM</FootballTeam>
</student>
</record>

Re: reading xml file in C#

WillemM23-Jul-07 1:01

WillemM

23-Jul-07 1:01

You are going to get errors using the example from your post. It has become unreadable.
Can you repost the XML, with the "Ignore Html tags in this message" enabled?

WM.

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"What? Its an Apple MacBook Pro. They are sexy!" - Paul Watson
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Re: reading xml file in C#

Kevin McFarlane23-Jul-07 1:55

Kevin McFarlane

23-Jul-07 1:55

Have a look at the tutorials here.

http://quickstart.developerfusion.co.uk/quickstart/howto/default.aspx[^]

Kevin

using user control

cyn823-Jul-07 0:47

cyn8

23-Jul-07 0:47

hi, I'm a beginner here. I've create an empty user control. I wish to allow a shape(rectangle, circle,etc) to be able to be drawn onto it. i got a function in the user control class:

void AddRect(Graphics shape,float x,float y)
{
shape.DrawRectangle(x,y,20,20);
}

in form class:
Graphics graph;
private Rectangle rectangle=new Rectangle(0,10,50,50);

graph = Graphics.FromImage(m_objDrawingSurface);
graph.Clear(SystemColors.Control);
ShapeCanvasl shape=new ShapeCanvasl();
shape.AddRect(graph,rectangle.X,rectangle.Y);

However, it draws on the form and not exactly on the user control. Any help is much appreciated.

Thanks

Handling Large Memory

satsumatable23-Jul-07 0:26

satsumatable

23-Jul-07 0:26

Imagine 2 GB of memeory map data and if user changes a bit we should be able to find the resultant change in the binary location update that specific byte.

Give me some larger memory based comparison APIs in .NET.

Re: Handling Large Memory

WillemM23-Jul-07 1:04

WillemM

23-Jul-07 1:04

Depending on how you are implementing the interface to change the data it can be quite simple or very complex. If you do it like this:

public void ChangeData(int offset,byte newData) {
  if(offset < 0 || offset > memoryMap.Size) {
    throw new ArgumentException(offset);
  }

  memoryMap.Seek(offset,SeekOrigin.Begin);
  memoryMap.Write(newData);

  if(MemoryMapChanged != null) {
    MemoryMapChanged(this,new MemoryMapChangedEventArgs(offset));
  }
}

it's pretty simple to detect changes.
(memoryMap is a MemoryStream or a FileStream configured for read/write access)

WM.

What about weapons of mass-construction?
"What? Its an Apple MacBook Pro. They are sexy!" - Paul Watson
My blog

Execute program automatically at a prescribed time daily.

javid4u23-Jul-07 0:17

javid4u

23-Jul-07 0:17

Hi All,

I have completed writing a program in C#. It works fine. But my task is to execute it automatically at a prescribed time daily.

Plz let me know how to achieve this.

~Javid

Re: Execute program automatically at a prescribed time daily.

Pete O'Hanlon23-Jul-07 0:41

Pete O'Hanlon

23-Jul-07 0:41

You need to use the task scheduler. To schedule a task, you run the "at" command with the /every and time parameters. For instance

at 12:02PM /every:M,T,W,Th,Fr,S,Su "c:\myprograms\myProgram.exe"

runs the program myProgram.exe every day at 12:02 PM. You can achieve a similar effect by setting up the command through the task scheduler.

Deja View - the feeling that you've seen this post before.

Re: Execute program automatically at a prescribed time daily.

javid4u23-Jul-07 0:53

javid4u

23-Jul-07 0:53

Hi Pete O'Hanlon,

Thank you for your reply. I thought of writing a program for it. Your reply made my life easier. I will try it.

~Javid

Generic Edit/Copy, Paste, Cut items in WinForms

AndrusM23-Jul-07 0:05

AndrusM

23-Jul-07 0:05

I have Winforms MDI application where forms contain TextBoxes and
DataGridViews.

Edit menu DropDownOpening contains:

private void editToolStripMenuItem_DropDownOpening(object sender, EventArgs
e) {
pasteToolStripMenuItem.Enabled = Clipboard.ContainsText();
}

DropDownOpening event does not fire.

Why ?

How to implement Edit / Copy, Paste, Cut items ?

Andrus.

Andrus

Re: Generic Edit/Copy, Paste, Cut items in WinForms

Christian Graus23-Jul-07 0:14

Christian Graus

23-Jul-07 0:14

AndrusM wrote:
DropDownOpening event does not fire.

Why ?

Impossible to say, we can't see where you hook it up, or when you expect it to fire.

AndrusM wrote:
How to implement Edit / Copy, Paste, Cut items ?

Depends entirely on the data you want to cut/copy/paste, but mostly you move it between the clipboard and your application.

Christian Graus - Microsoft MVP - C++

"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )

Deleting temporary file

-spy-22-Jul-07 23:57

-spy-

22-Jul-07 23:57

hey guyz how can i delete the temporary file that i created, whenever i retrieved the image saved in my database.. it keeps on growing..i hope u can help me regarding these...

here is the code

string strfn = Convert.ToString(DateTime.Now.ToFileTime());
FileStream fs=new FileStream(strfn,FileMode.CreateNew,FileAccess.Write);
fs.Write(imageByte,0,imageByte.Length);
fs.Flush();
fs.Close();
picBox.Image = Image.FromFile(strfn);

Re: Deleting temporary file

blackjack215023-Jul-07 0:05

blackjack2150

23-Jul-07 0:05

System.IO.File.Delete(...)

Re: Deleting temporary file

Luc Pattyn23-Jul-07 1:52

Luc Pattyn

23-Jul-07 1:52

Hi,

FromFile keeps the file locked.

Replace the last line picBox.Image = Image.FromFile(strfn); by the following (approx):

Bitmap bm = Image.FromFile(strfn);
picBox.Image=new Bitmap(bm);
bm.Dispose();
File.Delete(strfn);

Luc Pattyn

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