making two different style of datagridview's one cell - C# Discussion Boards

Trollslayer30-Dec-10 8:35

Trollslayer

30-Dec-10 8:35

Buy the software, sounds like it will be cheaper.

Join the cool kids - Come fold with us[^]

Bernhard Hiller30-Dec-10 19:54

Bernhard Hiller

30-Dec-10 19:54

Keith Barrow wrote:
You could also sync with the clock in a connected GPS system, I think these need to be accurate

Not necessarily, see my post to the lounge (http://www.codeproject.com/Lounge.aspx?msg=3558840[^]) which shows real data proving the inaccurateness of a GPS unit clock.

Rob Philpott30-Dec-10 1:35

Rob Philpott

30-Dec-10 1:35

Well, if the clock on the PC is wrong and you have no internet connection, its going to be hard to know what the time is. Impossible perhaps. What you do have is Environment.TickCount, which is the number of very small 'ticks' (order of tens of nanoseconds I think) since start up. If you know the time is correct when you start up, you can use this and a bit of maths to keep telling the correct time even if the clock changes.

Regards,
Rob Philpott.

arun_pk30-Dec-10 2:04

arun_pk

30-Dec-10 2:04

Hello Rob

will this workout if i dont run the system regularly?

i want to implement a trial version kinda thing
for thirty days
Frown | :(

were i dont have internet Frown | :(

Rob Philpott30-Dec-10 2:08

Rob Philpott

30-Dec-10 2:08

No, it won't I'm afraid. That's a tricky problem but have a look around and I'm sure you'll find some discussion on it on the net. Instead of a 30 day trial, would being able to only run the app a certain number of times be an alternative?

Regards,
Rob Philpott.

making two different style of datagridview's one cell

OriginalGriff30-Dec-10 2:16

OriginalGriff

30-Dec-10 2:16

Without an external clock source, which cannot be altered by the user, you can't do this with complete reliability.
However, you can set up a service (which must be running in order to use your app) which monitors the current time, and records it. If it is changed backwards, then it can cause a "validation failure" on your app. This can't catch every thing, and it has to be carefully done (avoid Summer time changes causing a problem, etc.) but it can be reasonably effective.
Other options:
1) Run time limited to n hours. After your app has executed for n hours, refuse to start. This tends to be more reliable (and more friendly) as people know where they are.
2) Function limited version.

To be honest, any trial protection is a pain for honest people, and a challenge for the dishonest. It generally isn't too difficult to circumvent and you can spend more on adding it to your app than you save in lost sales...

Real men don't use instructions. They are only the manufacturers opinion on how to put the thing together.

Erdinc2729-Dec-10 21:11

Erdinc27

29-Dec-10 21:11

hey guys..i want to change wordS' styles in a single cell of my datagridview
for example in a cell i have "AsdAsd.CvbCvb"..i want it to make as AsdAsd CvbCvb..to do that i declared two cellstyle

DataGridViewCellStyle mystyle1 = new DataGridViewCellStyle();
DataGridViewCellStyle mystyle2 = new DataGridViewCellStyle();

mystyle1.Font = new Font(dataGridView1.Font, FontStyle.Regular);
mystyle2.Font = new Font(dataGridView1.Font, FontStyle.Italic);

and to get the words in my cells i made this

for (int i = 0; i < dataGridView1.Rows.Count; i++)
           {
               for (int j = 1; j < dataGridView1.Columns.Count; j++)
               {
                   string split = dataGridView1.Rows[i].Cells[j].Value.ToString();
                   string[] split2 = split.Split(new char[] { '.' });

                   foreach (string item in split2)
                   {
                       dataGridView1.Rows[i].Cells[j].Value = split2[0].ToString()+"/*/*" + split2[1].ToString();
                   }
               }
           }

but the point is that i dont know how to apply that styles to the words i got by splitting?
can anyone suggest me a way

vemedya.com

Re: making two different style of datagridview's one cell

_Erik_30-Dec-10 0:17

_Erik_

30-Dec-10 0:17

I think you can create two classes, one inheriting from DataGridViewColumn and the other one from DataGridViewCell, where you can use a RichTextBox control to show your data with the format you need. I have never done this, but I guess it is not too hard. Read the documentation about these two classes.

On the other hand, I would like to help you improve your code:

All of these lines (I have added some comments):

string split = dataGridView1.Rows[i].Cells[j].Value.ToString();
string[] split2 = split.Split(new char[] { '.' }); // split.Split('.') is better

// This loop is useless. Yoy can remove it
foreach (string item in split2)
{
    // Are you sure split2 array has two or more items?
    // and since split2 is a string[], there is no need of ToString() for split2[0] and split2[1]
    dataGridView1.Rows[i].Cells[j].Value = split2[0].ToString()+"/*/*" + split2[1].ToString();
}

Give the same result as:

dataGridView1[j,i].Value = dataGridView1[j,i].Value.ToString().Replace(".", "/*/*");

But there is a difference: if you do not have a "." char, your code would also throw an exception.

Re: making two different style of datagridview's one cell

Henry Minute30-Dec-10 3:16

Henry Minute

30-Dec-10 3:16

As far as I know there is no way to do this with the 'standard' DataGridViewTextBoxColumn or DataGridViewTextBoxCell.

You can do it with the DataGridViewRichTextBoxColumn or Cell.

RichTextBox Cell in a DataGridView[^], might help.

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: making two different style of datagridview's one cell

Dave Kreskowiak30-Dec-10 4:24

Dave Kreskowiak

30-Dec-10 4:24

You can't use the styles because they apply to the ENTIRE cell, not just one little piece of content in it.

You have to write your own custom DataGridViewColumn implementation to pull this off. There are examples out there, you just have to Google for something like "Custom DataGridViewColumn" for them.

A guide to posting questions on CodeProject[^]

Dave Kreskowiak

Re: making two different style of datagridview's one cell

Erdinc2730-Dec-10 21:17

Erdinc27

30-Dec-10 21:17

thanks for your asnwers guys..i will look at the examples and search more deeper.. because iam not that much professional yet to create a Custom DataGridView

vemedya.com

C# IME (Input Method Editor)

vnmatt29-Dec-10 19:57

vnmatt

29-Dec-10 19:57

Any of you geniuses know how to develop an IME (Input Method Editor) in C# or know of a good article on how to do it? I have been "Googling" for some time now and not found anything useful; mostly links on how to enable the default MS ones for textboxes, etc. I am guessing a lot of PInvoke will be involved... any ideas? I haven't got a clue where to start... :-|

Thanks

Richard MacCutchan29-Dec-10 22:40

Richard MacCutchan

29-Dec-10 22:40

What do you mean by "Input Method Editor"? The basics of an editor are largely the same: read input key strokes, format the data according to the rules of the editor, display in the relevant window, save to a file as and when necessary. Google has lots of samples.

Just say 'NO' to evaluated arguments for diadic functions! Ash

Michael Agroskin30-Dec-10 16:22

Michael Agroskin

30-Dec-10 16:22

Why would you want to develop your own IME? It is definitely a huge undertaking, so unless you develop full-screen DirectX application or something full-screen, you don't need it.

Found couple links for you. The best I can do:

http://social.msdn.microsoft.com/forums/en-US/gametechnologiesdirectx101/thread/32e53d65-4f99-4e47-9207-7254a96af33e/[^]

http://www.osronline.com/ddkx/appendix/imeimes_0h2s.htm[^]

vnmatt31-Dec-10 3:52

vnmatt

31-Dec-10 3:52

Yes, looks like a heck of a job to me. I have already created one in WinForms, but that is application specific. I want to add something to the system tray so a user can switch between normal input and IME and the text will be entered on whatever application they are using. Oh well... a lot of homework to do then... LOL.

Thanks anyway. Smile | :)

Detection of Facial Feature points in OpenCV

greg ofiesh13-Jan-11 7:47

greg ofiesh

13-Jan-11 7:47

* edit to make a new post with this question *

mkfrns29-Dec-10 19:45

mkfrns

29-Dec-10 19:45

Is there any method for detection of facila feature points in openCV??

Re: Detection of Facial Feature points in OpenCV

JF201529-Dec-10 21:52

JF2015

29-Dec-10 21:52

Have a look here:

Face and Eyes Detection Using OpenCV[^]

and here (it's c++ but might be helpfull to read though):

http://opencv.willowgarage.com/wiki/FaceDetection[^]

You could also google for "face detection opencv c#" and you will get lots of results.

Reading registry keys

rakeshs31229-Dec-10 18:23

rakeshs312

29-Dec-10 18:23

Hi all,

I have a prob ,how we can read the registry keys in c# and display or write it into a text file

Please help

Thanks in advance

Rakesh

Abhinav S29-Dec-10 18:31

Abhinav S

29-Dec-10 18:31

Do a search on the internet - you will get tons of answers.
See here[^] for the first link my search returned.

The funniest thing about this particular signature is that by the time you realise it doesn't say anything it's too late to stop reading it.

My latest tip/trick

RaviRanjanKr29-Dec-10 18:50

RaviRanjanKr

29-Dec-10 18:50

Navigate the Given Link to open Google Search Engine for tons of Answer for your question
How to Read Registry Key[^]

Hope it Will works for you. Big Grin | :-D

Anil Kumar.Arvapalli29-Dec-10 20:44

Anil Kumar.Arvapalli

29-Dec-10 20:44

Include the required Header Files and then open ur required key

RegistryKey Key = Registry.CurrentUser;

Once Opening the key open ur sub key as needed..

RegistryKey SubKey = Key.OpenSubKey("Software\\Microsoft\\Windows\\CurrentVersion\\Explorer\\Shell Folders");

Read the values of sub keys into string (if it is a string else required data type)

string str = SubKey.GetValue("AppData").ToString();

Then ur almost done write this str value into file stream, so that ur task is acheived....

If u like my answer.... rate it Smile | :)

Thanks

PIEBALDconsult30-Dec-10 2:24

PIEBALDconsult

30-Dec-10 2:24

Pardhu2 wrote:
Include the required Header Files

This is the C# forum.