C# CLR Problems... - C# Discussion Boards

Getting Child nodes count of an element

28-Feb-07 3:32

Hi,

you need SerialPort.Write Method (Byte[], Int32, Int32) to output arbitrary bytes,
and if your source is a text file with decimal numbers, then a loop containing
byte.TryParse() is the way to go.
If your string input is using hex, then you need NumberStyles.AllowHexSpecifier in
byte.TryParse()

Smile | :)

Luc Pattyn

[My Articles]

madhusri27-Feb-07 3:31

madhusri

27-Feb-07 3:31

Hi,

Heres a sample XML document:

<?xml version="1.0" encoding="utf-8"?>
<Sample>
<Name>

<FName>A</FName>

<MName>M</MName>

<LName>B</LName>
</Name>
<ID>1</ID>
</Sample>

If i get the count of childnodes of the node <name>, using the following statement: xmlNamenode.Childnodes.count, it returns 6 (i.e) it also includes the comments as a child node. Is there any way to directly get the count of number of elemets (excluding comment nodes) instead of alll the childnodes?

Thanks in advance

Regards
Madhu

Re: Getting Child nodes count of an element

Ennis Ray Lynch, Jr.27-Feb-07 3:46

Ennis Ray Lynch, Jr.

27-Feb-07 3:46

Xml naming convention is camelCase element names.

...

Use XPath. I believe there are several sample queries on the web that will give you the exact results you are looking for.

File Not Found

accesing form control values in class

balakpn27-Feb-07 3:22

balakpn

27-Feb-07 3:22

hi i want to acces a textbox text in the class file
wat i have to to do to get the values from forms in class
thanks

with regards
Balagurunathan.B

C# CLR Problems...

Illegal Operation27-Feb-07 3:04

Illegal Operation

27-Feb-07 3:04

Please Help!

I have created a class:

using System;
using System.Data.SqlTypes;
using System.IO;
using System.Collections.Generic;
using System.Text;
using Microsoft.SqlServer.Server;

namespace mySQL
{
public class SQLCLRIO
{
public static void WriteToFile(String content, String filename)
{
SqlPipe sqlP = SqlContext.Pipe();

try
{
File.WriteAllText(filename, content + "\n");
}
catch (Exception ex)
{
sqlP.Send("Error writing to file : " + ex.Message);
}
}
}
}

The problem is when I try to compile it into a dll I get the following.

"Microsoft.SqlServer.Server.SqlContext.Pipe' is a 'property' but is used like a 'method"

Illegal Operation

Making Computer Software Talk

Re: C# CLR Problems...

kubben27-Feb-07 3:11

kubben

27-Feb-07 3:11

remove the () at the end of the Pipe. You only have those if you are calling a method.

Ben

Re: C# CLR Problems...

Guffa27-Feb-07 3:12

Guffa

27-Feb-07 3:12

Remove ()

---
single minded; short sighted; long gone;

moving ellipse

t_nedelchev27-Feb-07 2:54

27-Feb-07 2:54

Hello everybody.
I am working with MVS2005.My project is C# project
How can I make e table with 10 raws and 10 columns and draw a moving ellipse over table.
Thanks for all.

Luc Pattyn28-Feb-07 3:36

28-Feb-07 3:36

Hi,

I am not sure what you mean by table. If its just a visual thing, you might consider
using a Panel, and drawing in it:
- 9 or 11 horizontal lines
- 9 or 11 vertical lines
- your ellipse (redrawn based on a Forms.Timer for animation)

Smile | :)

Luc Pattyn

[My Articles]

t_nedelchev28-Feb-07 21:07

28-Feb-07 21:07

Now I do this.
private void timer1_Tick(object sender, EventArgs e)
{
X1 += 5;
Y1 += 5;
Invalidate();
SolidBrush myBrush = new SolidBrush(Color.Green);
dataGridView1.Refresh();
Graphics grfx = dataGridView1.CreateGraphics();
grfx.FillEllipse(myBrush, X1, Y1, 15, 15);
}

But I ask is there any other way to do this

Luc Pattyn1-Mar-07 0:52

1-Mar-07 0:52

Hi,

some remarks:
1. you should call Dispose() on all objects you create from classes that offer a public
Dispose() method as soon as you dont need the objects any more. It applies to both
myBrush and grfx.
2. you could keep myBrush alive and reuse it over and over.
you should not do that with grfx
3. I would do the painting in a paint handler, not the timer tick (but of course the
x1/y1 update and the Invalidate() belong inside the tick handler). AS a result the
ellipse gets redrawn also every time it got damaged (e.g. when moving another window
over it without having to wait for the next timer tick (dont know what its period is).
BTW The PaintEventArgs offer you a free graphics, so you then dont need CreateGraphics
anymore, and dont have to Dispose() it.

Smile | :)

Luc Pattyn

[My Articles]

t_nedelchev1-Mar-07 2:41

1-Mar-07 2:41

Hi Can you send me a sample code how can I do this in paint handler
X and Y is updated in timer tick at 100ms.

Luc Pattyn1-Mar-07 7:18

1-Mar-07 7:18

Hi,

create and wire a paint handler for your dataGridView1 or add the relevant lines to an
existing one:

private SolidBrush myBrush = new SolidBrush(Color.Green);

private void dataGridView1_Paint(object sender, PaintEventArgs e) {
    Graphics g=e.Graphics;
    g.FillEllipse(myBrush, X1, Y1, 15, 15);
}

That should do it.

Smile | :)

Luc Pattyn

[My Articles]

t_nedelchev1-Mar-07 7:35

1-Mar-07 7:35

I'm so sorry but something wrong.
I try this any times today.
Is there something else in timer tick except to update X and Y value and to Invalidate().Because my dataGridView is repainted only when over it move another window.
Sorry but I'm beginer.

Luc Pattyn1-Mar-07 7:52

1-Mar-07 7:52

Hi,

if dataGridView1 is the only thing changed by your timer, then it also is the only
thing that needs to be invalidated, so try dataGridView1.Invalidate() there.

Dont be afraid to try a couple of things, you learn more by having a good balance
between doing some experiments and asking some questions...

Smile | :)

Luc Pattyn

[My Articles]

t_nedelchev1-Mar-07 8:01

1-Mar-07 8:01

It's my last question. Smile | :)

The effect is the same when in timer tick I make dataGridView1.Refresh();
Byt my dataGridView1 blink every timer tick

Luc Pattyn1-Mar-07 8:25