C#

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security for c# dll/assembly ppp00128-Jul-05 4:37 ppp001 28-Jul-05 4:37  Hi, It is possible to add a key to the c# dll so that when other application call it, the application need the key to use the dll ? And how to do that ? Thanks Re: security for c# dll/assembly Dave Kreskowiak28-Jul-05 4:59 Dave Kreskowiak 28-Jul-05 4:59  NewtonInTown wrote: It is possible to add a key to the c# dll so that when other application call it, the application need the key to use the dll ? The short answer is no. The long answer is maybe. This is possible only if all the methods you write in this .DLL are written to accept a key and validate it. This is something I don't think you want to do in every property and method you expose. RageInTheMachine9532 "...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome Re: security for c# dll/assembly Richard Deeming28-Jul-05 8:59 Richard Deeming 28-Jul-05 8:59  So long as both assemblies have a strong name, you can add a StrongNameIdentityPermissionAttribute[^] to the class library at the assembly level. As a result, only applications signed with your private key will be able to access the library. "These people looked deep within my soul and assigned me a number based on the order in which I joined." - Homer Re: security for c# dll/assembly Dave Kreskowiak28-Jul-05 10:35 Dave Kreskowiak 28-Jul-05 10:35  Hmmm... Didn't know about that one. RageInTheMachine9532 "...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome Decimal Devision zaboboa28-Jul-05 4:06 zaboboa 28-Jul-05 4:06  Hello, I have two decimal numbers, and I want to use mod function to get an integer number. But it seems it's only available for SQL. Is there a nice way of deviding two decimals and rounding off the result to a nearest integer? Thank you Re: Decimal Devision Alomgir Miah28-Jul-05 4:17 Alomgir Miah 28-Jul-05 4:17  int x = Convert.ToInt32(10.0/2.4); Live Life King Size Alomgir Miah Re: Decimal Devision zaboboa28-Jul-05 4:51 zaboboa 28-Jul-05 4:51  Thank you, I am so stupid I am already using Convert method. DDE Member 197359428-Jul-05 0:38 Member 1973594 28-Jul-05 0:38  Hi, I am trying to use a C# Windows Forms application as a DDE Client. At present I'm using the follwing code to initiate a session with the DDE Server... ushort app = GlobalAddAtom(Marshal.StringToHGlobalAnsi(appname)); ushort topic = GlobalAddAtom(Marshal.StringToHGlobalAnsi(topicname)); this.packedParam = PackDDElParam(WM_DDE_INITIATE, (System.IntPtr)app, (System.IntPtr)topic); SendMessage(dtaProcess, WM_DDE_INITIATE, Process.GetCurrentProcess().MainWindowHandle, this.packedParam); This should return a WM_DDE_ACK message to the main thread as follows... protected override void WndProc(ref Message m) { \\WM_DDE_ACK = 996 if (m.Msg == 996) { MessageBox.Show(""); } else { base.WndProc (ref m); } } I do not receive the WM_DDE_ACK message. Also, the PackDDElParam method (user32.dll) returns a negative value. Is this correct? Hi,Please provide me documentation Member 251384828-Jul-05 0:35 Member 2513848 28-Jul-05 0:35  Hi, Can anybody provide me documentation of Expression Evaluator Project implemented in C# by werdena,on this site ,please help me if you can. Thanx. Re: Hi,Please provide me documentation Dave Kreskowiak28-Jul-05 3:37 Dave Kreskowiak 28-Jul-05 3:37  You'll have to go to the article that you downloaded it from, scroll to the bottom of the page and you'll find a discussion board just like this one. Post a question asking for additional information there. Articles are, for the most part, supported by the people that wrote them. RageInTheMachine9532 "...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome Add a custom control in a tool bar Anonymous27-Jul-05 23:21 Anonymous 27-Jul-05 23:21  Hi at all, Im developing a custom control based on CF DataGrid. I added new functionalities like customizable rows height and another bit changes. My problem is that i cant add the control in the toolbar because it appear disbled (gray colour). I have read some articles, but im lost. Anybody can help me? Thanks in advance Juan (sorry for my bad english). About ExecuteNonQuery ? papyrus_lei27-Jul-05 23:13 papyrus_lei 27-Jul-05 23:13  when i use procedure CommandType is procedure and then run ExecuteNonQuery() the return value of ExecuteNonQuery() is always -1 so the return value of ExecuteNonQuery is useless when use procedure? Re: About ExecuteNonQuery ? cshaaaa28-Jul-05 0:13 cshaaaa 28-Jul-05 0:13  It executes the query and just return the no of rows affected. Re: About ExecuteNonQuery ? papyrus_lei28-Jul-05 3:04 papyrus_lei 28-Jul-05 3:04  thanks! Re: About ExecuteNonQuery ? Anish Gopi28-Jul-05 2:48 Anish Gopi 28-Jul-05 2:48  Hai For UPDATE, INSERT, and DELETE statements, the return value is the number of rows affected by the command. For all other types of statements, the return value is -1. If a rollback occurs, the return value is also -1. For more information See SqlCommand.ExecuteNonQuery Method[^] Re: About ExecuteNonQuery ? papyrus_lei28-Jul-05 3:05 papyrus_lei 28-Jul-05 3:05  thanks! ^_^ Re: About ExecuteNonQuery ? Anonymous28-Jul-05 2:49 Anonymous 28-Jul-05 2:49  the procedure execute correctly and the data in DB changed. but the return value is -1 why? return value just useful when execute sql query? Inheritance zapap27-Jul-05 21:09 zapap 27-Jul-05 21:09  I have a parent class, Base with 2 child classes, Child1, and Child2. Base has a public int iNo. I init Child1 from another class. So Child1 inits Base. Now, in Child1, I set Base.iNo = 10. Then i create the second child class, Child2 from Child1. Now, in Child2, when I call Base.iNo, i don't get 10. I know the problem is that the child classes works with 2 seperate instances of the Base class, but how can i resolve this. i want both child classes to inherit from the same Base instance. How do i do this.? Thank you There's someone in my head but it's not me - Pink Floyd gunigugu Re: Inheritance Guffa28-Jul-05 0:14 Guffa 28-Jul-05 0:14  You inherit a class, not an object. Child1 and Child2 only inherits the definition of Base, Child1 objects and Child2 objects still are separeate objects. It's the same way as if you have two separate Base objects, they each have there own set of members, although they come from the same class. If you want to share a member across objects, you have to declare it as static. --- b { font-weight: normal; } Re: Inheritance zapap28-Jul-05 8:51 zapap 28-Jul-05 8:51  Thank you very much, I never thought of static variables... There is someone in my head but it's not me - Pink Floyd Optimizing a C# for size Luis Alonso Ramos27-Jul-05 20:08 Luis Alonso Ramos 27-Jul-05 20:08  I have a C# Windows Forms application, where the executable really has to be small. It has about 5 or 6 forms, and the executable size is about 230 KB. By toggling the show all files in the Solution Explorer in Visual Studio, I can change the Build Action from Embedded Resource to None for the .resx files generated by the designer. With this, I shrank the EXE size to 100 KB. My forms are not Localizable, and I haven't included any graphic files directly. The ImageLists I use are loaded from a bitmap strip with code, and not in the designer. My code as it is doesn't break without the .resx files, but I wonder if there are other situations where they are used that I'm not aware of. So, does anyone know? -- LuisR Luis Alonso Ramos Intelectix - Chihuahua, Mexico Not much here: My CP Blog! How to create a file in remote system Vinkum27-Jul-05 19:51 Vinkum 27-Jul-05 19:51  Hi, I want to create a Textfile in the remote system meaning(i'm having only the URL, where the file to be created e.g: http://url/folder ). Inside the folder i want to create a file. Is there any classes to create a file in remote system? And is it possible to make the file as hidden file. If anybody knows solution to my problem please let me know to solve it. Thanks and Regards, Vinoth Using gamepad in C#? BlackWorm27-Jul-05 18:33 BlackWorm 27-Jul-05 18:33  I want to control gamepad in C# but i don't know how! Using directinput? or else? is anyone have any sourcecode about this? please help me! sorry because of my poor English Re: Using gamepad in C#? Christian Graus27-Jul-05 19:07 Christian Graus 27-Jul-05 19:07  DirectInput is what you need to use. Christian Graus - Microsoft MVP - C++ Re: Using gamepad in C#? BlackWorm27-Jul-05 21:31 BlackWorm 27-Jul-05 21:31  thanks for your reply But can tell me more detail? i don't know how to use directinput in C# to control gamepad thanks;)

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