C# Discussion Boards - CodeProject

Re: XNA Help

MasterSharp1-Dec-07 7:21

MasterSharp

1-Dec-07 7:21

I don't have the membership, soo it's not much use, but they do have some goodies.

- I love D-flat!

Large Quantities

MasterSharp1-Dec-07 4:52

MasterSharp

1-Dec-07 4:52

I understand the idea of how to make a bunch of rectangles in random places, but I just can't follow through. You would have rect1 - 25. You would have Random r. How would I make them draw at random places on a form? Thanks in advance.

- I love D-flat!

Re: Large Quantities

Luc Pattyn1-Dec-07 5:16

Luc Pattyn

1-Dec-07 5:16

Hi,

in the OnPaint method of the Control/Form you want to draw your shapes in, have a for loop
that generates random x,y,width,height values (all within legal bounds), and call
Graphics.DrawRectangle (or FillRectangle) for each of them.

Alternatively, generate those numbers elsewhere and store them; then have your OnPaint feed
them to Graphics.DrawRectangle.

Smile | :)

Luc Pattyn [Forum Guidelines] [My Articles]

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Re: Large Quantities [modified]

MasterSharp1-Dec-07 5:23

MasterSharp

1-Dec-07 5:23

How would I select a large amount of (say) rect1 - 25? I saw a post a while back that did something close, but I can't find it. It's like...

(my example)

rect(and a for loop here)<br />
{<br />
<br />
}

... or something like it

-- modified at 11:28 Saturday 1st December, 2007

- I love D-flat!

Re: Large Quantities

Luc Pattyn1-Dec-07 5:30

Luc Pattyn

1-Dec-07 5:30

Something along these lines:

List< Rectangle> rects=new List< Rectangle>;
Random rand=new Random();
for (int i=0; i< RECT_COUNT; i++) {
    int x=rand.Next(xBounds);
    int y=rand.Next(yBounds);
    int w=rand.Next(widBounds);
    int h=rand.Next(heiBounds);
    Rect r=new Rectangle(x,y,w,h);
    rects.Add(r);
}
...
Graphics g=e.Graphics;
foreach(Rectangle r in rects) {
    g.DrawRectangle(r);
}

Luc Pattyn [Forum Guidelines] [My Articles]

Re: Large Quantities

MasterSharp1-Dec-07 6:31

MasterSharp

1-Dec-07 6:31

Oh. Thanks.

- I love D-flat!

To clip the cursor into any trasnformed figure

SharjeelHKhan1-Dec-07 4:17

SharjeelHKhan

1-Dec-07 4:17

I want to clip the cursor into any closed figure that have been drawn using graphicspath and have been transformed aswell. I want this to be done in GDI of C#. The default clip property of cursor is limited to clip it under rectangular area.

Sharjeel H Khan

Help required

chanzeb1-Dec-07 4:12

chanzeb

1-Dec-07 4:12

I have declared an array like this

"ArrayList tableNames = new ArrayList();"

and I have added some values to it using
"tableNames.Add(row["TABLE_NAME"].ToString());"

Now I want to traverse it untill the last element.

Reply Hurry!

Regards,
chanzeb chaudhary

Re: Help required

Jyoti MCAD1-Dec-07 4:28

Jyoti MCAD

1-Dec-07 4:28

StringBuilder mybuilder=new StringBuilder();
foreach(string s in tableNames)
{
mybuilder.Append(s)
}

Re: Help required

Paul Conrad1-Dec-07 9:16

Paul Conrad

1-Dec-07 9:16

chanzeb wrote:

Reply Hurry!

That is rather rude.

"The clue train passed his station without stopping." - John Simmons / outlaw programmer

Re: Help required

Christian Graus1-Dec-07 9:44

Christian Graus

1-Dec-07 9:44

chanzeb wrote:
Reply Hurry

You must be joking.

Your question tells me that you're very new to C#. You should buy a beginner book and work through it. You should certainly be aware of basic language constructs like for each before you start trying to work with databases, etc.

Christian Graus - Microsoft MVP - C++

"also I don't think "TranslateOneToTwoBillion OneHundredAndFortySevenMillion FourHundredAndEightyThreeThousand SixHundredAndFortySeven()" is a very good choice for a function name" - SpacixOne ( offering help to someone who really needed it ) ( spaces added for the benefit of people running at < 1280x1024 )

Re: Help required

PIEBALDconsult1-Dec-07 10:24

PIEBALDconsult

1-Dec-07 10:24

First, learn about foreach.

Second, learn about System.Collections.Generic.List<string>.

Third, learn that the .ToString() on your row["TABLE_NAME"] is likely unnecessary, try a cast instead.

Fourth, if you're already traversing a DataTable why are you even asking?

what will i do to have an inputed value in a textbox in form 1...

genesis151-Dec-07 4:08

genesis15

1-Dec-07 4:08

what will i do to have an inputed value in a textbox in form 1 and and have that value appears on another textbox in form2?

thanks!!

Re: what will i do to have an inputed value in a textbox in form 1...

Giorgi Dalakishvili1-Dec-07 4:17

Giorgi Dalakishvili

1-Dec-07 4:17

This article will help you: Passing Values between Forms in .NET 1.x with C# and VB.NET examples[^]

#region signature
my articles
#endregion

Open and Close a form on one Button

LodySharp1-Dec-07 2:29

LodySharp

1-Dec-07 2:29

hello can sombady help me with this problem.
i want open and close a form with wan button.
Confused | :confused:

Re: Open and Close a form on one Button

Anthony Mushrow1-Dec-07 2:34

Anthony Mushrow

1-Dec-07 2:34

Open and close the SAME form with one button, or two different forms?
Have you tried this yourself yet? Did you come to a problem, and if so, what was it?

My current favourite word is: PIE!

I have changed my name to my regular internet alias. But don't let the 'Genius' part fool you, you don't know what 'SK' stands for.
-The Undefeated

Re: Open and Close a form on one Button

Paul Conrad1-Dec-07 9:18

Paul Conrad

1-Dec-07 9:18

Please rephrase question because it is not very clear what you are wanting to do.

"The clue train passed his station without stopping." - John Simmons / outlaw programmer

event question

thepersonof1-Dec-07 1:51

thepersonof

1-Dec-07 1:51

hi I have an event defined in a base class. I'd like to raise this directly from a derived class, but the compiler won't let me do this, so instead I created a method RaiseMyEvent(...) to raise the event in the base class. Can I raise the event a simpler way? (otherwise I'd need to create a RaiseEventX function for each event..)

thanks!

Re: event question

Zoltan Balazs1-Dec-07 11:48

Zoltan Balazs

1-Dec-07 11:48

No you can't.
There is a really good article on events here
[^].

Network integrated solutions | Flickr
A practical use of the MVC pattern

awhat is refrence

wasimsharp1-Dec-07 0:55

wasimsharp

1-Dec-07 0:55

when we create application form in visual c# in solution tab there is some think name refrence what is this plz any tell me in detail

wasim khan

Re: awhat is refrence

pmarfleet1-Dec-07 2:19

pmarfleet

1-Dec-07 2:19

If you define a reference to another assembly in a project, you can call code in that assembly from the project.

BTW, this is a pretty basic question. You should really read a beginner's book on C#.

Paul Marfleet

"No, his mind is not for rent
To any God or government"
Tom Sawyer - Rush

Re: awhat is refrence

Paul Conrad1-Dec-07 9:19

Paul Conrad

1-Dec-07 9:19

pmarfleet wrote:
You should really read a beginner's book on C#.

I believe so.

"The clue train passed his station without stopping." - John Simmons / outlaw programmer

How to Detect a device connection?

Vicky2Galaxy1-Dec-07 0:50

Vicky2Galaxy

1-Dec-07 0:50

Hi...I am trying to detect connection of a device with system using com port...i want to show a message box when a device is plugged in and plugged out.....How can i do it?

Vishal

Re: How to Detect a device connection?

Luc Pattyn1-Dec-07 2:54

Luc Pattyn

1-Dec-07 2:54

Hi,

there basically are two approaches, both requiring some cooperation from the device:

1.
by hardware signaling:
if your device is pulling one of the control pins, you can detect that by looking at
some SerialPort properties (CtsHolding, CdHolding, ...) or wiring its PinChanged event.
Of course that would not tell you for sure which device is attached.

2.
by software polling:
the device might periodically send some data, which you could read (possibly thru the
DataReceived event); or you could periodically ask it to send something (timer+Write+Read).

Smile | :)

Luc Pattyn [Forum Guidelines] [My Articles]

Re: How to Detect a device connection?

Vicky2Galaxy1-Dec-07 20:52

Vicky2Galaxy

1-Dec-07 20:52

Thanks a lot buddy....i am sure now that i can implement it..

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