C# Discussion Boards - CodeProject

Re: How to capture the data entered by the user

CWIZO31-Aug-06 22:47

CWIZO

31-Aug-06 22:47

You write a event handler for the Key_Press (or Key_Down) event for the control you wan't to capture.

--------------------------------------------------------
My portfolio & development blog
Q:What does the derived class in C# tell to it's parent?
A:All your base are belong to us!

Re: How to capture the data entered by the user

King Shez1-Sep-06 2:06

King Shez

1-Sep-06 2:06

thankx for ur response , but man i am making a window service it would be running at the back end as window process,there would be no user control in front of the user where the user enters the data and i can get the data in key press event of my application , so that would not be the case here,plz reply ASAP ,

Calculation Problems

Gavin Roberts31-Aug-06 22:05

Gavin Roberts

31-Aug-06 22:05

Hi all,

I've been working on a Graph class for our web stats system and i'm having a few problems.

After getting some help of a few guys/gals (not sure) from here, I solved many problems and then hit another one.

I have currently got a class that generates an image of a graph which has X and Y Axis labels all correctly placed.

Now my problem is, how can I display my values in a staticly sized image?

My working space is 150hx650w. My X and Y Labels are all placed in the right place, and I need to calculate how tall I need to make my bars to reflect their value.

So my values are now : 0,0,4,0,90,172,0 (graph shows stats for the last 7 days)

At first I thought 150*value/100 would give me a percentage of the height, which I could simply draw

but when I tried it against the 172, my return value was 258.

Has anyone got any idea's on how to solve this. Maths was my strong subject at school, but i've forgotten most of it.

Thanks everyone.

Gav

Re: Calculation Problems

Marek Grzenkowicz31-Aug-06 22:11

Marek Grzenkowicz

31-Aug-06 22:11

bar = bar_max * value / value_max

For example:
bar = 150 * 172 / 172 = 150
bar = 150 * 90 / 172 = 78

Re: Calculation Problems

Gavin Roberts31-Aug-06 23:14

Gavin Roberts

31-Aug-06 23:14

THANK YOU!

I knew it would be simple, but I didn't think it was THAT simple.

How to run a url [modified]

Support12331-Aug-06 21:18

Support123

31-Aug-06 21:18

Hi all,

I just want to know what i'm doing wrong when trying to access a website thru cmd. I send the command from my application to cmd prompt. "http://bulksms.2way.co.za/5567/eapi/submission/send_sms/2/2.0?username=itgoeshere&password=blahblah&message=hi+ma&msisdn=0820820820"
I want this link to run thru cmd. please help

If you know how to just run a url without sending it to command prompt (if that is easier) that would be great help

thank you in advance

"Many of life's failures are people who did not realize how close they were to success when they gave up." Thomas A. Edison

Re: How to run a url

Support12331-Aug-06 22:44

Support123

31-Aug-06 22:44

Okay, if figured out how to run a url directly from C# but i opens up my default web-browser. I want to run the url without the having the user see the url. i'm using the "Process.Start(URL)" to run the url.

Is there a way to not open any windows (like the web-browser) and still run the url?

"Many of life's failures are people who did not realize how close they were to success when they gave up." Thomas A. Edison

Re: How to run a url

Stefan Troschuetz31-Aug-06 23:18

Stefan Troschuetz

31-Aug-06 23:18

Take a look at the HttpWebRequest class.

"Programming today is a race between software engineers striving to build bigger and better idiot-proof programs, and the Universe trying to produce bigger and better idiots. So far, the Universe is winning." - Rick Cook

www.troschuetz.de

Re: How to run a url

Support1231-Sep-06 1:10

Support123

1-Sep-06 1:10

Thank you, I came across an article that gave the following code

HttpWebRequest Request;
StreamReader ResponseReader;
Request = ((HttpWebRequest)(WebRequest.Create(URL)));
ResponseReader = new StreamReader(Request.GetResponse().GetResponseStream());

when i run the code it says: "the underlining connection was closed. The remote name could not be resolved"

What does that mean?

"Many of life's failures are people who did not realize how close they were to success when they gave up." Thomas A. Edison

How to add checkbox in datagrid in windows application

indiaone31-Aug-06 19:32

indiaone

31-Aug-06 19:32

Hi,

I want to add checkbox in datagrid.I know we can use
DataGridColumnStyle boolCol = new DataGridBoolColumn();

but problem is this one taking only bool value. but my column value is string.

i have to make checkbox check or uncheck depending upon the status.
status is one of the field in my table and it's containg I or A.

any solution for this.plz help me.

thanks

Re: How to add checkbox in datagrid in windows application

WillemM31-Aug-06 23:06

WillemM

31-Aug-06 23:06

I think it's saver to change the select Query and translate the I or A values into true or false. You might want to checkup on the CASE OF syntax for SQL 2000/2005.

WM.

What about weapons of mass-construction?

DataGridView Question

kalyanPaladugu31-Aug-06 18:06

kalyanPaladugu

31-Aug-06 18:06

I have a dataGridView and just three rows.

I wrote dataGrid_RowEnter and dataGrid_RowLeave event. Basically i am changing the color to red of the row in the Row_Enter event and in the RowLeave and changing the color back to no color. I have also button in the same form. I have not written any thing on the button. but even if i click the button RowLeave event is firing and changing back my color. Is there a way around it. Is this the
normal behavior.

Thanks
kal

Re: DataGridView Question

Not Active31-Aug-06 18:17

Not Active

31-Aug-06 18:17

If your button is not within the row then yes it is normal behavior, you have left the row to click on the button hence the RowLeave event being fired.

only two letters away from being an asset

working with 2D Array

signimage31-Aug-06 17:52

signimage

31-Aug-06 17:52

int[] W=new int[10];
int[][] wind=new int[2][];
Color c1 = h.GetPixel(1,1);
W[0]=c1.ToArgb();
wind[0][0]=W[0];

this code give me run time error at wind[0][0]=W[0]; I do not know why,is there any error,can some one guide me,

Re: working with 2D Array

Martin#31-Aug-06 20:00

Martin#

31-Aug-06 20:00

Hello,

Yes you have a null ref. exception here.

wind[0] and wind[1] are not initialized

//Constructor code
for(int x=0;x<wind.Length;x++)
{
wind[x] = new int[10]; //for example
}

Hope that helps!

All the best,

Martin

Re: working with 2D Array

jjansen31-Aug-06 20:03

jjansen

31-Aug-06 20:03

You forgot to allocate the size of the second dimension of variable wind.
You need to do something like this:

int[][] wind = new int[2][];<br />
wind[0] = new int[3];<br />
wind[1] = new int[5];

Set the size of the first dimension to 2 (you've done that). Then you need to set the sizes of the second dimension for each of the elements (!) in the first dimension.

By the way, if you want the sizes of the second dimension to be the same, you might consider using a two-dimensional array like this:
int[,] wind = new int[2, 3];

Re: working with 2D Array

Martin#31-Aug-06 20:28

Martin#

31-Aug-06 20:28

Hello,

jjansen wrote:
By the way, if you want the sizes of the second dimension to be the same, you might consider using a two-dimensional array like this:
int[,] wind = new int[2, 3];

Thank you for the information about the 2D-array. (never used it before)

How do I get access to a spezial array?
(int[] intarray = wind[0]) //doesn't work

Thanks for your time

Martin

Shell Namespace Extension Question

RSL-REK31-Aug-06 14:33

RSL-REK

31-Aug-06 14:33

Hello,
I am trying to implement drag within my shell namespace extension. I noticed that in MFC you are able to set up a message area to attach to the events such as OnBeginDrag.

My question is; How do I attach to those events using c#?

Thank you,
Rick

Rick

Print Document Control

omar el halwagy31-Aug-06 13:41

omar el halwagy

31-Aug-06 13:41

iwant to know what the unit which we messauer with on this document and what to do to convert it to centemeter
as example
Graphics grahpics = e.Graphics;
Brush brush = new SolidBrush(Color.Black);
Pen pen = new Pen(brush);
Font font = new Font("Arabic Transparent",22);
grahpics.DrawString("Omar",font,brush,50,50);
this 50 is the cordinate what by which unit its and how if i want to as example if i want to begain with cordiate 2 cintimeter how can i can comvert it

Re: Print Document Control

Nader Elshehabi31-Aug-06 14:17

Nader Elshehabi

31-Aug-06 14:17

Hello

AFAIK the units used in printing are "tenthes of inch". ie. 1Unit = 0.1Inch

You can write your own transforming method, knowing that each inch = 25.5 mm
=> each unit = 0.255 mm
=> each mm = 3.92 unit

so if you got your dimensions in mm, just multiply them by this factor (3.92), and they will be in "hundredths of an inch" just like the .Net printing methods and objects want.

Example:
2cm = 20mm => 20 X 3.92 = 78 Unit

Regards

Re: Print Document Control

omar el halwagy1-Sep-06 1:15

omar el halwagy

1-Sep-06 1:15

thanks for help

Mesh flip

mirano31-Aug-06 13:28

mirano

31-Aug-06 13:28

How to flip mesh object in DirectX horizontally or vertically?

Sarajevo, Bosnia

Re: Mesh flip

eggie531-Aug-06 23:03

eggie5

31-Aug-06 23:03

How about rotating the world?

Device.Transform.World = Matrix.RotationX(radian);

/\ |_ E X E GG

Re: Mesh flip

mirano31-Aug-06 23:11

mirano

31-Aug-06 23:11

This is not an option. I want to flip a specific mesh, not the whole world, as there are many meshes in the world that should retain its positions.

Sarajevo, Bosnia

"Unable to start debugging" error

haytham_mohammad31-Aug-06 13:02

haytham_mohammad

31-Aug-06 13:02

i downloaded a web application and when i run the project this msg popped up to me.
Error while trying to run project: Unable to start debugging on the web server.the project is not configured to be debugged.

thanks in advance.

haitham

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.