C# Discussion Boards - CodeProject

Re: DataColumn.Caption not working

ed^nrgc27-Nov-06 2:47

ed^nrgc

27-Nov-06 2:47

The easy way is to make templated columns, and not autogen.

Windows application datagrid? [modified]

Naji.A22-Nov-06 5:18

Naji.A

22-Nov-06 5:18

I am trying to make a datagrid in a windows application editable. How can I add the edit column in the designer? Any helpful hints on that or sources?

thanks

-- modified at 11:27 Wednesday 22nd November, 2006

Re: Windows application datagrid?

led mike22-Nov-06 5:45

led mike

22-Nov-06 5:45

Naji.A wrote:
Any helpful hints on that or sources?

www.CodeProject.com
msdn.microsoft.com
www.Google.com

Sigh | :sigh:

led mike

Re: Windows application datagrid?

meeram39522-Nov-06 19:56

meeram395

22-Nov-06 19:56

Hi,

Check with this site. You may get something useful, http://www.datagridgirl.com/articles.aspx

Blush | :O

Raja Raman S
Reuters India Pvt.Ltd.
Bangalore

How to create professional looking UI controls?

Christian Krueger22-Nov-06 5:12

Christian Krueger

22-Nov-06 5:12

Hi there,

I wanted to start developing some professional looking ui controls ( like these OMG | :OMG:

) and just can't figure out how these have been developed and I don't want to include images in the project to mimick the look.

Can someone give me an advice where to start or some good links or even books you recommend for this topic?

Sure I know that I can't create such good looking ui controls in a week Smile | :)

I just want a helping hand guiding me into the right direction

Thanks in advance,
Cheers Chris

Re: How to create professional looking UI controls?

led mike22-Nov-06 5:42

led mike

22-Nov-06 5:42

Petzold [^]covers fundamental topics well. At least he did back when I read him.

led mike

Re: How to create professional looking UI controls?

Not Active22-Nov-06 5:54

Not Active

22-Nov-06 5:54

Most comprehensive ASP.NET books have at least one chapter on creating server controls, however this book, among others, specifically covers the subject.

Building ASP.NET Server Controls[^]

only two letters away from being an asset

Re: How to create professional looking UI controls?

Christian Krueger22-Nov-06 8:08

Christian Krueger

22-Nov-06 8:08

Is this book also good if I'm going with WinForms Controls instead of ASP.Net Server Controls ?

Re: How to create professional looking UI controls?

Not Active22-Nov-06 8:24

Not Active

22-Nov-06 8:24

In that case you may want to check out these titles.

Programming Microsoft Windows Forms [^]

Programming Windows with C# (Core Reference)[^]

only two letters away from being an asset

Re: How to create professional looking UI controls?

Christian Krueger22-Nov-06 9:05

Christian Krueger

22-Nov-06 9:05

Thank you!
I will try the first one Smile | :)

Cheers Chris

Where is my settings variables saved ?

Nadia Monalisa22-Nov-06 4:48

Nadia Monalisa

22-Nov-06 4:48

Hi,
I have created some settings file other than the main Settings.settings within my C# Win project. Before I used to see that, all new varaibles of all other settings files are being saved in the app.config file as an serializable XML. But in the past few days, I faced a problem with Configuration manager and I used to get error message "Configuration manager failed to load". After hassling for a while I found that, once I changed my project folder's name, the "Configuration manager error gone." but Now, I dont see the new variables in the app.config file any more. yet the settings vars are being saved in my computer somehow somewhere... I dont have any idea where are they being saved. I am worrid thinking that, if I ship my software to my client's pc, will it work in the same way by saving the settings variable somewhere in the PC without saving in app.config ?

Thanks and regards
Emran

Re: Where is my settings variables saved ?

Chals22-Nov-06 5:36

Chals

22-Nov-06 5:36

Each project has a different settings file, make sure you are looking into the right one.

Other than that, as you already know, settings are always stored as XML, cant think of any other place they are stored in.

Hope that helps Smile | :)

Re: Where is my settings variables saved ?

Oleg A.Lukin22-Nov-06 5:54

Oleg A.Lukin

22-Nov-06 5:54

Application setting persistence is thorougly described in "Application Settings Architecture" MSDN article (http://msdn2.microsoft.com/en-us/library/8eyb2ct1(VS.80).aspx), though, to say in short, they are stored in two parts: application-scope settings are stored in app.exe.config file that should be in the application folder, user-scope settings are stored in local user profile %InstallRoot%\Documents and Settings\username\Local Settings\Application data\CompanyName\ProductName\ProductVersion. The key thing is that this storage depends not only on product-name but on product build either. So, if you will leave apllication build number as it is set by default (1.0.*) or will change build number yourself location will change after build and your settings will be lost because they automatically migrate only when you use ClickOnce application deployment. Therefore you have to create your own settings migration mechanism or your own custom provider for settings storage to control your settings completely.

Re: Where is my settings variables saved ?

Nadia Monalisa22-Nov-06 6:55

Nadia Monalisa

22-Nov-06 6:55

Hi,
Thanks for your reply.

I have gone thru the article you provided (MSDN) and I realized that the User Scope application settings are stored in the User's profile path returned by System.Windows.Forms.Application.LocalUserAppDataPath.
Now, it will be an issue to pack this item into a single installer as I am not using "click Once", how can I instruct my application to load and save user scoped settings.config file in the same Application.StartupPath ?

Regards
emran

Re: Where is my settings variables saved ?

Oleg A.Lukin22-Nov-06 9:14

Oleg A.Lukin

22-Nov-06 9:14

Well, I'm afraid I cannot be much help to you. I can say that LocalFileSettingsProvider is a bit of a tough job after I looked through its source. It can be reproduced of course but there is a hell lot of work to do.

To be honest I use standard application settings only for a small stuff like window positions - even if they are lost it doesn't make much trouble and can be replaced by reasonable defaults. As for serious things, global settings that persist from version to version and all that I use the same strategy as with common data files - I simply choose the convenient location and put my settings there using simple Dictionary object to store them and serialize/deserialize manually with somthing like SoapFormatter. After all ApplicationSettingsBase is a simple dictionary wrapper too.

Regards, Oleg.

Downloading file from FTPsite in asynchronous method

Zami_222-Nov-06 4:27

Zami_2

22-Nov-06 4:27

How to download file from FTPsite in asynchronous way?
Please help me.

Re: Downloading file from FTPsite in asynchronous method

Judah Gabriel Himango22-Nov-06 4:43

Judah Gabriel Himango

22-Nov-06 4:43

You can use the System.NET.FtpWebRequest to request files from an FTP site. You can use the FtpWebRequest.BeginGetResponse to do this asynchronously.

Tech, life, family, faith: Give me a visit.
I'm currently blogging about: God-as-Judge, God-as-Forgiver
The apostle Paul, modernly speaking: Epistles of Paul

Judah Himango

Product Key Serial Number Generation

Alper Camel22-Nov-06 4:15

Alper Camel

22-Nov-06 4:15

Hi,

I am generating product key in the form of ; XXXXX-XXXXX-XXXXX-XXXXX

I want to generate unique serial key related to this product key.
I'd be so glad if someone help me.

Thank you in advance.

Re: Product Key Serial Number Generation

Judah Gabriel Himango22-Nov-06 4:45

Judah Gabriel Himango

22-Nov-06 4:45

Guid.NewGuid().ToByteArray() will give you 16 bytes.

Tech, life, family, faith: Give me a visit.
I'm currently blogging about: God-as-Judge, God-as-Forgiver
The apostle Paul, modernly speaking: Epistles of Paul

Judah Himango

Re: Product Key Serial Number Generation

Alper Camel22-Nov-06 5:06

Alper Camel

22-Nov-06 5:06

But,

GUID will generate RANDOM string, that will NOT related to my product key.

Thank you.

Re: Product Key Serial Number Generation

Judah Gabriel Himango22-Nov-06 6:28

Judah Gabriel Himango

22-Nov-06 6:28

I don't understand, then, what you're trying to do. You want a product key, I gave you a piece of code to generate one. Are you saying you want to validate that? If so, validate with a server? Or just some special crafted key that is either valid or invalid?

Tech, life, family, faith: Give me a visit.
I'm currently blogging about: God-as-Judge, God-as-Forgiver
The apostle Paul, modernly speaking: Epistles of Paul

Judah Himango

Re: Product Key Serial Number Generation

ed^nrgc22-Nov-06 7:06

ed^nrgc

22-Nov-06 7:06

Check google for Elliptic Curve Cryptography

Re: Product Key Serial Number Generation

Alper Camel23-Nov-06 0:50

Alper Camel

23-Nov-06 0:50

This is definately what I'm looing for...

Thank you so much... Smile | :)

Re: Product Key Serial Number Generation

CodingDragon23-Nov-06 0:18

CodingDragon

23-Nov-06 0:18

Hi
Have never done such a thing, but you could just run a for loop with an ID and then hash it.

<br />
for(int i = ID; ID < limit; ID++)<br />
{<br />
 // gethash() gives you a 9 digit number - theoretically not unique but very close.<br />
 // collisions in hash is very rare<br />
 string hash = ID.gethash().toString();<br />
<br />
 // if needed longer just do it again<br />
 hash = hash.gethash().toString();<br />
<br />
 // format the string to look like xxxx-xxxx-xxxx-xxxx (insert the '-' etc)<br />
}<br />

Not pretty, but it would work.

Re: Product Key Serial Number Generation

Alper Camel23-Nov-06 0:47

Alper Camel

23-Nov-06 0:47

Well your code give me some ideas for doing that.
Thank you so much.

I'll test this now...

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