Implementing ISite to have access to DesignMode indicator - C# Discussion Boards

laphijia26-Jul-02 1:13

26-Jul-02 1:13

James T. Johnson wrote:
The only thing I can see that might be wrong with the SQL Query is that there is no space between the @LocalName parameter and the word WHERE.

OMG | :OMG:

Could you believe it was just this?
Da*n!

Thank You,
this is the great thing about The Codeproject, that new eyes see subtle errors! Big Grin | :-D

"Nelle cose del mondo non e' il sapere ma il volere che puo'."

Creating a Textbox that doesn't accept focus

swpo25-Jul-02 18:28

swpo

25-Jul-02 18:28

Hi,
How do I create a textbox that doesn't get the focus even when it is clicked upon (other than setting enabled = false)?

Thanks

Re: Creating a Textbox that doesn't accept focus

leppie25-Jul-02 22:17

leppie

25-Jul-02 22:17

Hi,

There are several ways Smile | :)

1. Try using a label instead , seeing that the user wont be able to enter text, or

2. On the MouseDown Event , make it select the control that requires focus, IOW as soon as it gets clicked on, it must deselect itself and select the required control.

Hope this helps Smile | :)

MYrc : A .NET IRC client with C# Plugin Capabilities. See
http://sourceforge.net/projects/myrc for more info. Big Grin | :-D

Re: Creating a Textbox that doesn't accept focus

swpo26-Jul-02 9:38

swpo

26-Jul-02 9:38

To clarify, I am trying to create a textbox which, when the user types in numeric , will display those numbers but they shouldn't be able to directly click and type inside.
So a label won't solve the purpose.

Re: Creating a Textbox that doesn't accept focus

jparsons26-Jul-02 3:08

jparsons

26-Jul-02 3:08

TextBox t = new TextBox();
t.CanFocus = false;

Jared
jparsons@jparsons.org
www.prism.gatech.edu/~gte477n

Re: Creating a Textbox that doesn't accept focus

leppie26-Jul-02 8:59

leppie

26-Jul-02 8:59

jparsons wrote:
t.CanFocus = false;

That property is read-only Frown | :(

. I wish it wasn't. Has cause major headache in the past Cry | :((

MYrc : A .NET IRC client with C# Plugin Capabilities. See
http://sourceforge.net/projects/myrc for more info. Big Grin | :-D

Re: Creating a Textbox that doesn't accept focus

swpo26-Jul-02 9:32

swpo

26-Jul-02 9:32

Control.CanFocus is readonly. So I think this will not work.

Implementing ISite to have access to DesignMode indicator

kyledunn25-Jul-02 15:42

kyledunn

25-Jul-02 15:42

I am creating a custom control that inherits the ComboBox class. I would like to use the ISite.DesignMode indicator to determine if the control is being viewed in design mode but the property always comes up false. MSDN documentation says the design mode indicator is stored in the ISite; therefore, if the Component does not have an ISite associated with it, this property is always false. Other things I have read said to assign the atribute to the class to designate which class to apply the ISite implementation but I have not seen any examples that put all the pieces together. Can anyone share with me this method or any other method that would allow me to determine when this custom control based on a combobox is in design mode?

Thanks,

Kyle

C# Inquiry?

BHBAD25-Jul-02 6:52

BHBAD

25-Jul-02 6:52

Does anybody know where i can get a trial version of C#?

Re: C# Inquiry?

leppie25-Jul-02 7:34

leppie

25-Jul-02 7:34

The .NET Framework SDK is a free download +- 121MB from microsoft. You can use SharpDevelop as an IDE which is also free available Smile | :)

MYrc : A .NET IRC client with C# Plugin Capabilities. See
http://sourceforge.net/projects/myrc for more info. Big Grin | :-D

Re: C# Inquiry?

Anonymous25-Jul-02 10:10

Anonymous

25-Jul-02 10:10

Or you can order the trial version from this site:

http://msdn.microsoft.com/vstudio/productinfo/trial.asp

Have fun.

Console application

Ahmed Diaa24-Jul-02 22:59

Ahmed Diaa

24-Jul-02 22:59

how can i clear screen in console applications?

Re: Console application

jparsons25-Jul-02 2:36

jparsons

25-Jul-02 2:36

I don't believe you're going to find any kind of ClearScreen() function. However you can use the following hackish code.

<br />
for(int i = 0;i<80;i++) Console.WriteLine();<br />

Jared
jparsons@jparsons.org
www.prism.gatech.edu/~gte477n

Re: Console application

Anonymous25-Jul-02 8:17

Anonymous

25-Jul-02 8:17

thanks jared , i though of that solution but i wanted to know if there is a built function do this job
anyway thanks for replying Smile | :)

About shared assembly.

Feng Qin24-Jul-02 21:40

Feng Qin

24-Jul-02 21:40

1.I can add an assembly to cache, but I cannot find it in dialog when you click "Add reference", how can I let my assembly to the dialog's .net assembly list?
2.I built two version assembly(v1.0.0.0 and v1.0.0.1) that included the same sn, also added them to cache, now I want to refer the certain version of them in my application, how can I do?
I have tried "Add reference", but I cannot find it because the problem 1, then, I used "Browse" to select a certain version dll(ie: v1.0.0.0) file because of using the namespace of the shared assembly, then I wrote a config file of application:

bindingRedirect oldVersion="1.0.0.0" newVersion="1.0.0.1"

But when I run the program, the application still link to v1.0.0.0.

Any thoughts?
Thank you!

I'm amumu, and you?

Re: About shared assembly.

James T. Johnson24-Jul-02 23:54

James T. Johnson

24-Jul-02 23:54

Feng Qin wrote:
1.I can add an assembly to cache, but I cannot find it in dialog when you click "Add reference", how can I let my assembly to the dialog's .net assembly list?

In the registry you will find a key where it lists all the directories it will search for. On my computer this is located at HKEY_LOCAL_MACHINE\Software\Microsoft\.NETFramework\AssemblyFolders. Just follow the pattern there and you'll be able to add your install folder to the list so that your assembly is listed in the "Add Reference" dialog.

If you don't want to modify the registry you can put the assembly in the %WINDIR%\Microsoft.NET\Framework\v1.0.3750\ directory and you should see it in the "Add Reference..." dialog. This is one of the directories that is specified in the registry in the above location.

James
"Java is free - and worth every penny." - Christian Graus

Re: About shared assembly.

Feng Qin25-Jul-02 0:03

Feng Qin

25-Jul-02 0:03

Thank you, James, but how about 2nd question?

I'm amumu, and you?

Re: About shared assembly.

James T. Johnson25-Jul-02 0:08

James T. Johnson

25-Jul-02 0:08

I've never used the binding redirect before so I can't really comment on how to get it working properly.

James
"Java is free - and worth every penny." - Christian Graus

Sys-wide keyboard hook

Anonymous24-Jul-02 19:14

Anonymous

24-Jul-02 19:14

I need to hook the keyboard messages system wide. This can be done by using SetWindowsHookEx() to do this.

HHOOK SetWindowsHookEx(int idHook, HOOKPROC lpfn, HINSTANCE hMod, DWORD dwThreadId);

I got everything to work except the third param. What do I use for a handle if I want to do System wide hook?

Thanks for your time

Re: Sys-wide keyboard hook

Luis Alonso Ramos24-Jul-02 21:02

Luis Alonso Ramos

24-Jul-02 21:02

This is not a C# question, but I'll answer anyway. Use 0 as the thread ID. Also, you will need to put your hook funcion in a DLL, so it can be loaded in every process.

-- LuisR

──────────────
  Luis Alonso Ramos
  Chihuahua, Mexico
  www.luisalonsoramos.com

"Do not worry about your difficulties in mathematics, I assure you that mine are greater." -- Albert Einstein

Re: Sys-wide keyboard hook

Alex Korchemniy25-Jul-02 7:20

Alex Korchemniy

25-Jul-02 7:20

Thanks for the information provided.

This is what I have right now:
public void StartHook()
{
int hookType = (int)NativeMethods.WH.KEYBOARD;
myHookProc = new NativeHookMethods.HookProc(this.hookProc);
hookHandle = NativeHookMethods.SetWindowsHookEx(hookType,
myHookProc, ??? Confused | :confused:

??, 0);
}

What do I put in the third parameter? Please help

Re: Sys-wide keyboard hook

Luis Alonso Ramos25-Jul-02 10:57

Luis Alonso Ramos

25-Jul-02 10:57

So it's C# after all?

See the docs for SetWindowsHookEx here:

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/winui/winui/windowsuserinterface/windowing/hooks/hookreference/hookfunctions/setwindowshookex.asp[^]

the hMod (third) parameter contains the module handle of the module (EXE or DLL, must be DLL if systemwide) that contains the hook procedure.

I'd recommend you to write the DLL with the hook function in straigth Win32 SDK code, so it is smaller (imagine having to load all .NET runtimes in every process??) Export two routines to start and stop the hook, and from the hook procedure you could send a message to your app's window (written in C#).

-- LuisR

──────────────
  Luis Alonso Ramos
  Chihuahua, Mexico
  www.luisalonsoramos.com

"Do not worry about your difficulties in mathematics, I assure you that mine are greater." -- Albert Einstein

Copy Constructor

Johnny Zee24-Jul-02 16:54

Johnny Zee

24-Jul-02 16:54

Anybody can help me how can I implement C++ Copy Constructor in C# with a generic example.

Thanks in advance

Re: Copy Constructor

James T. Johnson24-Jul-02 18:08

James T. Johnson

24-Jul-02 18:08

You do it just like you would with C++; however the more correct method is to implement the ICloneable interface.

class Foo : ICloneable
{
  public int bar;
  public SomeClass baz;
  
  public Foo()
  {
    bar = 0;
    baz = new SomeClass();
  }
  
  public Foo(Foo sourceCopy)
  {
    bar = sourceCopy.bar;
    baz = sourceCopy.baz; // <- be careful see Clone method
  }
  
  public Foo Clone()
  {
    Foo f = new Foo();
    f.bar = bar;
    f.baz = new SomeClass();
    // Perform operations on f.baz
    // so that its state is the same as
    // this.baz
  
    return f;
  }

  object ICloneable.Clone()
  {
     return Clone(); // Call the strongly-typed
     // Clone method
  }
}

James
"Java is free - and worth every penny." - Christian Graus

Re: Copy Constructor

Johnny Zee25-Jul-02 2:27

Johnny Zee

25-Jul-02 2:27

Thanks James you are always a good resource.

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