Re: How to create an combobox inside IDE's property editor ? - C# Discussion Boards

Re: Communication between webservice and win application

14-Feb-04 21:30

How what? You don't know how to call a webservice method from windows service? What exactly you want to do?

Mazy

You're face to face,
With the man who sold the world - David Bowie

naxos15-Feb-04 20:10

naxos

15-Feb-04 20:10

Just the other way around ;o) I want to call my win service( .NET remote server) from a webservice. is it possible?

Need Help In Socket Programming

Amoola14-Feb-04 10:15

Amoola

14-Feb-04 10:15

I need a hint about how to recieve packets (any type IP ,Tcp ,UDP) using C#
thanx alot

Re: Need Help In Socket Programming

Colin Angus Mackay14-Feb-04 10:53

Colin Angus Mackay

14-Feb-04 10:53

C# Network Programming[^] by Rich Blum is a really good source of information on Socket Programming in C#

EuroCPian Spring 2004 Get Together[^]
"You can have everything in life you want if you will just help enough other people get what they want." --Zig Ziglar
"Get in touch with your Inner Capitalist - I wish you much success!" -- Christopher Duncan, Lounge 9-Feb-2004

Shellnotifications

Lesuran14-Feb-04 9:56

Lesuran

14-Feb-04 9:56

Hi all,

I've played around with the Shellnotifications...
(http://www.codeproject.com/csharp/shellnotifications.asp?target=Shellnotifications)

I want to read out the InternetExplorer History Notifications.
I've changed the Register Event to CSIDL_HISTORY but it didn't work correctly.
If I click on an IE link, nothing happens.
I have seen it working in a vb project.
(http://vbnet.mvps.org/index.html?code/shell/shchangenotify.htm)

Somebody got a solution?

How to create an combobox inside IDE's property editor ?

Andres Coder14-Feb-04 8:34

Re: How to create an combobox inside IDE's property editor ?

14-Feb-04 8:34

I have an ArrayList of objects (all the same type). All of these objects (classes) contain a string property Name. I also have a variable CurrentMyObject that shows witch MyObject to use currently (there are a lot of MyObject instances, try to think of MyObject as of an adapter).

<br />
<br />
private MyObject CurrentMyObject;<br />
private ArrayList MyObjectsList = new ArrayList();<br />
public class MyObject<br />
{<br />
   protected string name;<br />
   public string Name {...}<br />
}<br />
<br />
...<br />
string something = CurrentMyObject.Name;<br />
...<br />

Is it possible to let the user set the CurrentMyObject from a dropdown meny in Property Editor inside IDE (design time)? I mean to create a list (maybe an array) of each MyObject instance's name string and the set the CurrentMyObject by the name property. There's no problem with setting the CurrentMyObject by a name, the problem is how to create the combobox inside Propert Editor to let the user to do that inside IDE (VS.NET property editor) ...

Regards, Desmond

Heath Stewart14-Feb-04 9:24

Re: How to create an combobox inside IDE's property editor ?

14-Feb-04 9:24

You need to attach a TypeConverter via the TypeConverterAttribute that returns true for TypeConverter.GetStandardValueSupported (there are other ways as well). Read about the classes in the System.ComponentModel namespace, and read the section in the .NET Framework SDK, Enhancing Design-time Support[^]. Besides talking about TypeConverters, there are a great many other design-time features you can exploit that are discussed.

BTW, many Types (like Enums) already have TypeConverters associated with the Type, such that any property of that Type uses the TypeConverter unless the property is attributed using a TypeConverterAttribute that specifies a different TypeConverter to use.

Microsoft MVP, Visual C#
My Articles

Andres Coder14-Feb-04 9:46

Re: How to create an combobox inside IDE's property editor ?

14-Feb-04 9:46

Thanks, unfortunately I cannot use enums (unless there is a way to construct a dynamic enum at runtime). It's a lot of reading I have to do (at msdn).

Anyway, could you please provide me with an example with this case here ?

Heath Stewart15-Feb-04 5:43

Re: How to create an combobox inside IDE's property editor ?

15-Feb-04 5:43

I didn't tell you to use enums. Just that enums have a default TypeConverter associated with them. TypeConverter.GetStandardValuesSupported and TypeConverter.GetStandardValues aren't just for display enum members either. Lots of properties use this, whether it's displaying the names of controls (of a particular Type, perhaps) by getting the container and enumerating the controls, or anything like that.

If you read the documentation I gave you links for, there are plenty of examples in the topics. Besides, there's few methods to implement and they should be obvious how to use.

Microsoft MVP, Visual C#
My Articles

Andres Coder15-Feb-04 7:21

Re: How to create an combobox inside IDE's property editor ?

15-Feb-04 7:21

Thanks, I will. I sometimes have trouble understanding english, it's really not my native language, so this should explane the misunderstandings.

Heath Stewart16-Feb-04 4:34

Re: How to create an combobox inside IDE's property editor ?

16-Feb-04 4:34

Sorry. You could've fooled me, though! Your grammar is excellent - much better than most American's I've seen.

Microsoft MVP, Visual C#
My Articles

Andres Coder16-Feb-04 7:23

16-Feb-04 7:23

That's because I try to write grammatically correctly as possible (I try to make use of what I've learned). I'm actually from Estonia (Europe, next to Finland over the Baltic sea).

Timezone: Setting?

CyMad14-Feb-04 3:55

14-Feb-04 3:55

I am currently involved in a barcode scanning project using .NET compact framework & C#. I need to programatically be able to set the timezone of the device when the application starts. The MSDN documentation only seems to have a gettimezone method in the timezone class & no way of setting it Confused | :confused:

. Is there away to set this?

Any help would be much appreciated Cry | :((

CyMad
CF Developer

Mazdak14-Feb-04 4:10

14-Feb-04 4:10

I don't know any .net way too, but you can use SetTimeZoneInformation() win32 function.

Mazy

You're face to face,
With the man who sold the world - David Bowie

CyMad16-Feb-04 7:46

16-Feb-04 7:46

Thanks for that, would it be possible for you to provide an example of its use as I am a newbie to p/invoke?

CyMad
CF Developer

Mazdak16-Feb-04 8:41

16-Feb-04 8:41

Search for DllImport in this site and MSDN and you will get lots of sample. Smile | :)

Mazy

You're face to face,
With the man who sold the world - David Bowie

CyMad17-Feb-04 3:45

17-Feb-04 3:45

Thanks for your help?

All working now Big Grin | :-D

CyMad
CF Developer

Heath Stewart14-Feb-04 9:28

14-Feb-04 9:28

.NET is a high-level framework (seemingly till "Longhorn") and is not intended for such use (just like you can't set the system time or display characters, etc.). Mazdak's right, you'll have to P/Invoke SetTimeZoneInformation (see the DllImportAttribute), which is supported by Windows CE 1.0 and later (which means Pocket PC 2002 and 2003 support it).

Microsoft MVP, Visual C#
My Articles

Thanks for help:-D

CyMad17-Feb-04 5:52

Best Practice: Internet Connection?

17-Feb-04 5:52

Many thanks for help provided Big Grin | :-D

In my search for help I came accross a usefull site which contains a near complete win32 api library with source code written in C#

OpenNetCF

CyMad
CF Developer

Troy G14-Feb-04 3:18

Troy G

14-Feb-04 3:18

Hello all,

I would like to know what the best practice is for testing if a program has a valid internet connection. I have a function which tells me if the program is connected or not but I would hate to have to call this everytime I need to perform some operation.

What I am looking for is something like in Messenger when you lose an internet connection it notifies you. Am I limited to a timer that constantly checks for the internet connection or is there some way my app can receive a message when a connection gets unplugged or something similar.

Does this make any sense? Any help is greatly appreciated.

Smile | :)

Thanks,
Troy G

Mazdak14-Feb-04 4:02

14-Feb-04 4:02

Yes, you have to check it in a timer or thread. Whats the problem with that?

Mazy

You're face to face,
With the man who sold the world - David Bowie

Troy G14-Feb-04 4:06

Troy G

14-Feb-04 4:06

Mazy,

No problem. Just thought there may be something else I could do that would be easier on resources.

Thanks for responding,
Troy

visiontec14-Feb-04 8:34

visiontec

14-Feb-04 8:34

Hi there
I have the same problem as yours
but u have at least made a function to get yr work done.
I couldnt even do that !
can u plz pass a copy of that function to me?
Thanks

VisionTec