Re: Dates - C# Discussion Boards

Re: Drawing a transparent labe over another control

Heath Stewart31-Mar-05 8:24

31-Mar-05 8:24

Hmm...so it is. I must apologize. I've never had a reason to extend it and other controls are sealed that I have extended. Progress bars are very easy to create. Please follow my suggestion to search this site for "progress bar" and you'll find lots of articles how, including progress bars with gradients, custom pictures, and more; some even provide sample code that shows how to draw the percentage text (similar to how I did it above).

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image Resize

muslcesonvacation31-Mar-05 5:20

muslcesonvacation

31-Mar-05 5:20

Hi
I'm having an error "A generic error occurred in GDI+." with the following image resize code. can anybody help. PLZ

private void cmdStart_Click(object sender, System.EventArgs e)
{
if (( File1.PostedFile != null) && (File1.PostedFile.ContentLength > 0))
{
//determine file name
string szFileName = System.IO.Path.GetFileName(File1.PostedFile.FileName);
Size s = new Size(75,75);
ImageResize(File1.PostedFile.FileName,s);
}
}
void ImageResize(string str_file, Size new_size)
{
try
{
System.Drawing.Image src_image = System.Drawing.Image.FromFile(str_file);
Bitmap bitmap = new Bitmap(new_size.Width, new_size.Height,src_image.PixelFormat);
Graphics new_g = Graphics.FromImage(bitmap);
new_g.SmoothingMode =System.Drawing.Drawing2D.SmoothingMode.HighQuality;
new_g.InterpolationMode =System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic;
new_g.DrawImage(src_image, 0, 0, bitmap.Width, bitmap.Height);
src_image.Dispose();
bitmap.Save("C:\\Inetpub\\wwwroot\\ImageConverter\\bin\\resize.jpg", System.Drawing.Imaging.ImageFormat.Jpeg);
new_g.Dispose();
bitmap.Dispose();
}
catch(Exception e)
{
string a = e.Message;
}
}

Thanks
Gary

Re: image Resize

Heath Stewart31-Mar-05 5:27

Heath Stewart

31-Mar-05 5:27

I have a couple of questions.

On what line, exactly, does the exception get thrown? Please step through your code in the debugger. I'm assuming it's Graphics.DrawImage.
What is the pixel format of the image that you ran through the method?

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Re: image Resize

muslcesonvacation31-Mar-05 5:31

muslcesonvacation

31-Mar-05 5:31

Hi,

The exception is being thrown on the bitmap.save method.

Thanks
Gary

Re: image Resize

Heath Stewart31-Mar-05 6:25

Heath Stewart

31-Mar-05 6:25

What as the pixel format of the original image you passed through the method?

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Re: image Resize

Heath Stewart31-Mar-05 6:23

Heath Stewart

31-Mar-05 6:23

One other thing I noticed that, if "ImageConverter" is your ASP.NET project, you should not put files in the bin sub-directory. If ASP.NET is configured to handle the .jpg extension, then - by default - users will not be able to access bin\resize.jpg because access to files in the bin directory is disallowed by ASP.NET. You should consider saving the file to a directory users can access if you plan on passing it back as the src attribute of an IMG tag.

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Dates

scotlandc31-Mar-05 5:11

scotlandc

31-Mar-05 5:11

Hi,

I am trying to set the value of a DateTimePicker to the first of next month in a UK date format.

ie every day this month (March) the DTP will read 01/04/2005 then next month it will read 01/05/2004.

Anyone know how it can be done? I've sorted the month part out with AddMonth(1) but have no idea how to set the date to 01 each time?

Please can someone help?

Thanks in advance

Scott

Re: Dates

techieboi31-Mar-05 5:57

techieboi

31-Mar-05 5:57

Alright mate, not sure I understand your problem but hopefully the code below will help.

DateTime startOfMonth = DateTime.Now.AddMonths(1);
startOfMonth = startOfMonth.AddDays(-startOfMonth.Day + 1);

The code add's one month to the current date and then defaults the date to the 1st of the month.

Re: Dates

Heath Stewart31-Mar-05 6:19

Heath Stewart

31-Mar-05 6:19

Do keep in mind that the DateTime type always uses the Gregorian calendar, so you should use the Calendar class to truly get the right date if not doing this strickly for the DateTimePicker. See http://blogs.msdn.com/michkap/archive/2005/03/28/402839.aspx[^] for more information.

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Re: Dates

scotlandc4-Apr-05 0:52

scotlandc

4-Apr-05 0:52

Thanks for replying folks, much appreciated.

The code works perfectly, thank you.

I will bear that in mind about the Gregorian Calendar too, thanks for pointing it out.

Again, much appreciated.

Scott Wink | ;)

Whidbey - beta1 - "Beta period has expired!!!"

abcxyz8231-Mar-05 3:59

abcxyz82

31-Mar-05 3:59

Hi all,

I was experimenting with generics and some new stuff of ASP.NET 2.0 in whidbey beta1 given during Teched 2004...everything was working fine till last night..and suddenly today morning when i opened beta1 horrible dialog box saying - "The beta period has expired- thank you for participating in our beta program, you can now safely remove Microsoft development environment from your computer" appeared...I have checked google and found that expiry date of whidbey beta1 is around 15th July 2005..so whats up???

The strange thing is - "It didnt show me any warning that my version is going to expire..." My colleagues are using the same version(teched beta1) but its fine for them...

So, Is there any way by which I can open that solution!!!!

Thanks in advance!!!

REgards
MaulikCE

i don want

Re: Whidbey - beta1 - "Beta period has expired!!!"

Judah Gabriel Himango31-Mar-05 4:53

Judah Gabriel Himango

31-Mar-05 4:53

Why not just use the Whidbey Beta 1 that's freely available on MSDN? You can download the express versions or have them mail you a DVD of the Enterprise version.

Tech, life, family, faith: Give me a visit.
I'm currently blogging about: He has a funny face. And he's my son.
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Re: Whidbey - beta1 - "Beta period has expired!!!"

Koushik.roy@rbc.com31-Mar-05 10:33

Koushik.roy@rbc.com

31-Mar-05 10:33

Check the date on your system. You system may be set to a date of future. D'Oh! | :doh:

Question on File.Copy

RockRock31-Mar-05 3:42

RockRock

31-Mar-05 3:42

I want to duplicate a file.
However, exception occured when I use the Copy method twice.

e.g.
File.Copy("from1.jpg","to.jpg,true");
File.Copy("from2.jpg","to.jpg,true");

How can i solve it?

Re: Question on File.Copy

Colin Angus Mackay31-Mar-05 4:28

Colin Angus Mackay

31-Mar-05 4:28

I can only assume, since you don't say what the exception is, that the error is because you are copying two files to one destination and that it won't overwrite the existing file. I suggest that you choose a different file name for the second copy operation.

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Re: Question on File.Copy

RockRock31-Mar-05 4:35

RockRock

31-Mar-05 4:35

Thank you for your reply.

The exception is about the file is being used by other application.

In my algorithm, they should be copied to the same file name.
How can I solve it?

Re: Question on File.Copy

Colin Angus Mackay31-Mar-05 4:39

Colin Angus Mackay

31-Mar-05 4:39

I think the clue is in the question. Make sure the file isn't being used by another application. (or even by the same application)

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Re: Question on File.Copy

Dave Kreskowiak31-Mar-05 5:59

Dave Kreskowiak

31-Mar-05 5:59

BTW, why are you copying these files to one file? The second copy operation is overwriting the first copy you did, so why copy the first file at all?

RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome

Easy Translation!!

Diogo Alves31-Mar-05 3:38

Diogo Alves

31-Mar-05 3:38

Greetings to you all
I'd Like to know if there is a simple way to do the application translation to another languages

something like the string tables in the VC++

Confused | :confused:

Best Regards
Diogo Alves

Re: Easy Translation!!

Heath Stewart31-Mar-05 6:48

Heath Stewart

31-Mar-05 6:48

Not translation, no, but localization and globalization, yes. Read Developing World-Ready Applications[^] in the .NET Framework SDK for detailed information. ResX files are actually better than string tables because you can store more than just strings. Even something as simple as string formatting is better in .NET because you can specify which arguments go where in a string, meaning that you can localize the format string but still specify the parameters in the same order for any language. See my article, Custom String Formatting in .NET[^], for a discussion about this.

If you're using Visual Studio .NET to develop your managed applications, developing world-ready applications could be much easier. Design your UI and all the text, the select the form and open the PropertyGrid (should already be open; otherwise, right-click and select "Properties"). Find the "Localizable" property and set it to "True", then find the "Language" property and set that to another language. You can then change your strings, control sizes and locations, and more.

A few things to keep in mind. The neutral language - the language in which you develop and that the primary assembly (the assembly with code) uses - should not be localized separately. This is also the fallback language if a satellite assembly cannot be found. This is covered in the documentation I linked first. To make your application run faster, you should put the following attribute in your AssemblyInfo.cs file (or anywhere, actually, but that source file is most common):

[assembly: System.Resources.NeutralResourcesLanguage("en-US")]

Here, my neutral language would be "en-US" (English (U.S.)) because that's the language in which I developed the primary assembly. I could then switch to "German" (for an invariant locale, which means I'm just localizing the German language but not for a particular region) and change my UI. When you compile, several assemblies are produced. You must ship all to have your localized UI displayed correctly.

The localized UI is controlled by the Thread.CurrentUICulture. Windows will set the thread's LANGID (the CurrentUICulture) to the user's preferred (or the system's default) LANGID, but you can override that by setting Thread.CurrentUICulture before displaying your UI.

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Drawing one point

Kiki9931-Mar-05 2:58

Kiki99

31-Mar-05 2:58

Please, help me

I have one problem. I don't know how to drawing ONLY one point on form.

Thanks

Re: Drawing one point

S. Senthil Kumar31-Mar-05 3:04

S. Senthil Kumar

31-Mar-05 3:04

Does drawing a line from x,y to x,y+1 solve your problem?

Regards
Senthil
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Re: Drawing one point

Kiki9931-Mar-05 3:29

Kiki99

31-Mar-05 3:29

yes, thanks

Web Services - c# application

wakkerjack31-Mar-05 1:51

wakkerjack

31-Mar-05 1:51

I have a functional web service. It's very simple - like adds two numbers. then when i want to use it in a c# application, i know i should add it as a web reference.. In all the examples i have seen, the Solution Explorer shows many other files under the new web reference. but when i add mine, it just shows the name of the reference. Is this a problem? Cuz i cant get the application to find the service when i try specify it with USING ... ?

Please help!

Thanks

Re: Web Services - c# application

Kodanda Pani31-Mar-05 2:09

Kodanda Pani

31-Mar-05 2:09

Hi,

You can see all the files by taking the "Show All Files" option from the solution explorer. Then you can see the .WSDL , .DISCO files and all the other files.

If you want to access your service reference in the "using" statemen give

using XXXX.WebreferenceName;

where XXXX is the namespcace of the application to which you added the reference.

Guess this will help you.

Thanks and Regards
SGS

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