C# Discussion Boards - CodeProject

S. Senthil Kumar22-Jun-05 7:55

22-Jun-05 7:55

You can generate a dll by creating a new project and selecting project type as "Class Library". You can always change it by right clicking on the project in Solution Explorer, clicking Properties and changing the Output Type in the resulting dialog.

If the dll has been generated by another project in the same solution, you can go to that project to see what's inside it. Otherwise, you have to use a decompiler (like Reflector) to see the contents.

Regards
Senthil
_____________________________
My Blog | My Articles | WinMacro

Re: why on debug it makes a .dll

Dave Kreskowiak22-Jun-05 9:14

Dave Kreskowiak

22-Jun-05 9:14

Are there two projects in the solution? One would probably be a class library and the other, the Windows Forms application.

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

Re: why on debug it makes a .dll

Sasuko22-Jun-05 11:26

Sasuko

22-Jun-05 11:26

yes

Re: why on debug it makes a .dll

Dave Kreskowiak22-Jun-05 17:38

Dave Kreskowiak

22-Jun-05 17:38

Then you answered your own question. One project creates the .DLL, the other is the Windows Forms application that uses it.

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

Re: why on debug it makes a .dll

DavidNohejl22-Jun-05 10:53

DavidNohejl

22-Jun-05 10:53

Sasuko wrote:
I've downloaded a solution from this site.

What about link? It would be very helpful...

David

typedef struct in C#

bynaryum22-Jun-05 7:11

bynaryum

22-Jun-05 7:11

I followed this MSDN article[^] (click on the Structs Sample link). My code is practically identical.

//Original structure
typedef struct
{
DWORD dwVar1Type;
WCHAR szVar1Name[MAX_VAR1_NAME];
} VAR1_A, *PVAR1_A, FAR *LPVAR1_A;

//C# equivalent
public struct VAR1_A
{
public UInt32 dwVar1Type;
[MarshalAs(UnmanagedType.ByValTStr, SizeConst=MAX_VAR1_NAME)]
public char[] szVar1Name;
}

The problem is, I can't seem to find an example of what to do with the pointer *PVAR1_A and the FAR pointer *LPVAR1_A.

Re: typedef struct in C#

Dave Kreskowiak22-Jun-05 7:26

Dave Kreskowiak

22-Jun-05 7:26

You don't do anything with them. These are for creating a pointer to this structure in C/C++ code. C# has no equivilent.

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

Re: typedef struct in C#

S. Senthil Kumar22-Jun-05 7:52

S. Senthil Kumar

22-Jun-05 7:52

They're just typedefs, so instead of struct YourStructName variable, you can do VAR1_A variable. As Dave pointed out, they aren't needed in C#, you can simply do VAR1_A variable.

Regards
Senthil
_____________________________
My Blog | My Articles | WinMacro

Re: typedef struct in C#

bynaryum23-Jun-05 4:11

bynaryum

23-Jun-05 4:11

Thank you both.

late binding to Excel Chart

Ariadne22-Jun-05 6:46

Ariadne

22-Jun-05 6:46

Hi, is there a way to read the names of the members of a late binding System.__ComObject?

I try to edit a Chart in Excel, but until now I get only the Charts-Object of Excel:

//Get the worksheets collection.<br />
objSheets_Late = objBook_Late.GetType().InvokeMember( "Worksheets",<br />
   BindingFlags.GetProperty, null, objBook_Late, null );<br />
objChart_Late =objBook_Late.GetType().InvokeMember("Charts", <br />
   BindingFlags.GetProperty, null, objBook_Late, null );

But I do not know, how to get the Objects like Axis and their properties.

Ariadne
Cancer Research Switzerland

MeasureString and HTML

Mr. Rogers22-Jun-05 6:43

Mr. Rogers

22-Jun-05 6:43

I'm trying to determine the dimensions of a string as it will appear in HTML. The closest way I've been able to do this is to use a graphics object and use MeasureString. However, there seems to be a slight difference between GDI and HTML with the dimension of strings. Does anybody know how I can reliably measure the string?

Thanks in advance.

Re: MeasureString and HTML

Dave Kreskowiak22-Jun-05 7:19

Dave Kreskowiak

22-Jun-05 7:19

You can't. The browser will display the string in whatever font was assigned to it client-side. There is no way for the server to know in what font, pitch, and browser Text Size the string will be rendered in.

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

Re: MeasureString and HTML

Mr. Rogers22-Jun-05 7:56

Mr. Rogers

22-Jun-05 7:56

Maybe I should clarify a bit more then. I want to be able to predict the flow of text that I'm placing into HTML. I'm applying styles to the text using CSS. For example, I know that it's going to be Arial 12 px. So why shouldn't I be able to determine the way that say IE or Firefox are going to render it?

Re: MeasureString and HTML

Dave Kreskowiak22-Jun-05 9:13

Dave Kreskowiak

22-Jun-05 9:13

Because there is no way to garantee that the workstation has Arial 12 pt on it. Also, the users can just click the View menu and change the Text Size, regardless of the size you think they're going to see. Also, last I checked (admittedly, a long time ago), Mac's don't have an Arial font, but they do have web browsers.

Also, the size of the browser window will change the rendered flow of the document. Not everybody runs their browsers maximized at 1280x1024. At 1920x1440, you can fit a lot of text on a single line using Arial 12pt.

You cannot determine this information server-side. If your rendering is that picky, you'll have to handle rendering in Java client-side. At least there, you've got more information about the environment you're working in.

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

Re: MeasureString and HTML

Mr. Rogers23-Jun-05 5:00

Mr. Rogers

23-Jun-05 5:00

If I specify the font size using css the user is unable to change the font size and I'm not so sure about Macs not having Arial but that's besides the point. Also, I don't care how big the user has their browser because I just want to know the dimentions of a given set of text. I will be the one locking in the size of the text area using HTML. I simply can't believe that there is no way of determining that out without using the HTML DOM.

Still, thanks for your input.

Re: MeasureString and HTML

Scott Serl22-Jun-05 10:07

Scott Serl

22-Jun-05 10:07

You might get slightly better results if you specify your font size in points; when you use pixels, you don't know how the browser is going to interpret that. Also, you have the problem of how the ie box model differs from every other browser, so the actual size of the area where text is rendered might be different in each browser depending on your settings for margin, padding, and borders.

Re: MeasureString and HTML

Mr. Rogers23-Jun-05 5:02

Mr. Rogers

23-Jun-05 5:02

I've found so far that Firefox and IE are fairly similar when using gdi to determine the size of fonts. I'll have to check out my margin and whatnot to see if that's where I'm getting my problem from.

i want to have form authentication

fayaz ahamed22-Jun-05 6:29

fayaz ahamed

22-Jun-05 6:29

hi,

Iam getting problem while authenticating in login page of with the database.this has to be done for web application(ASP.NET)with c#.

To be clear, iam having username and password in login page.this username and password must check with the sql database and if username and password is there in database then it must redirect to next page by having username as session id maintaining throughout the application.if the password and username does not suit it must give messagebox as "invalid login".

Re: i want to have form authentication

Dave Kreskowiak22-Jun-05 7:17

Dave Kreskowiak

22-Jun-05 7:17

This question really belongs in the ASP.NET Forum[^].

You haven't specified what your problem is. You've listed the speicifications for what your doing, but not what part(s) of this your having a problem with.

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

Re: i want to have form authentication

fayaz ahamed22-Jun-05 17:16

fayaz ahamed

22-Jun-05 17:16

thanks for replying,
i dont know how to do check login authentication itself.thats why i asked how to do form login.

For ur kind information iam new to this technology.so plz help me in learning .NET.

Re: i want to have form authentication

Dave Kreskowiak22-Jun-05 17:47

Dave Kreskowiak

22-Jun-05 17:47

fayaz ahamed wrote:
dont know how to do check login authentication itself

How that is done depends entirely on where your user's credentials are stored. Are you authenticating against the Windows SAM, Acitve Directory, managing your own account information in a SQL database, ... ?

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

Refresh forms

webhay22-Jun-05 6:19

webhay

22-Jun-05 6:19

Hello All,

1-
I puted some controls on windows form and binded them to database. I need if i changed some thing on another forms to refresh the First forms.

2-
How can i check if a form alreday running or not ?

Please help
Thanks
Hay

Re: Refresh forms

david cohoon22-Jun-05 6:54

david cohoon

22-Jun-05 6:54

Depending on whether the data on the second form is related to the data on the first form, you could pass the first form's binding context to the second form, so that both forms use the same binding context. I've done this when I had to display child data in a separate form. I just passed the binding context into the second form's constructor.

There are several different ways to detect whether a form is already currently being shown. One way is to create your own ApplicationContext and have it create and destroy your forms. Another way is to simply create a static object that holds this information.

Hope that helps

ping in c#

amarsumanth22-Jun-05 4:46

amarsumanth

22-Jun-05 4:46

Can someone help by sending code for ping in c#.net

amar

Re: ping in c#

Paul Brower22-Jun-05 5:35

Paul Brower

22-Jun-05 5:35

http://www.csharphelp.com/archives/archive6.html[^]

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