|
Can anyone guide me to good tutorials on asynchronous calls and delegates? This thing is killing me...... 
---
With best regards,
A Manchester United Fan
The Genius of a true fool is that he can mess up a foolproof plan!
|
|
|
|
|
|
Hi,
I want to resize the combobox scrollbars, so you can scroll easily on a touch screen
Thx in advance.
Regards
bart
|
|
|
|
|
You can access the scrollbar of combobox from the controls collection of combobox. It will be available as HScrollBar control. Next u can change any of its properties. You can do all this as:
foreach(Control c in comboBox.Controls)
{
if (c.GetType().Equals(typeof(HScrollBar)))
{
c.Width=20;
c.Hight=20;
}
}
Akif
|
|
|
|
|
i need to check status of the internet connection from my windows app in C# ~ i came across two API functions in wininet.dll , the
InternetGetConnectedState() but i learnt that the call can distinguish between modem and LAN, but can't handle complex LAN+autodial router situations ~ and InternetCheckConnection() but it pings a URL to check the state which might take quite some time `
which is the best way to do it ~ if there are other better ways of doing it , please let me know ~
thanks
|
|
|
|
|
How do I detect if there is an Internet connection?[^]
It is sometimes useful for a Winsock program to only do its thing if the computer is already connected to the Internet. In many cases, "connected to the Internet" means having a dial-up networking connection. See this example for code that checks for such a connection.
This doesn't work in all situations, however. The first problem is, not everyone uses a modem to connect to the Internet. Often a computer is hooked to a LAN, and one of the stations on the LAN acts as a gateway to the Internet. You could poke around in the system's network configuration to see if they have a gateway configured, but then you run into the problem that gateways are used for things other than simply connecting a LAN to the Internet. Even if the LAN is sometimes gatewayed to the Internet, the gateway's Internet connection might not always be up, or it might be configured to block access to some sites.
Another issue is that even if the PC does have a modem for connecting to the Internet, it might be disconnected but configured to auto-dial. In this case, the fact that the modem is currently disconnected is not a problem: your program should blindly try to connect, which will bring the connection up.
The moral of the story is, it's usually best not to even check for an Internet connection. Simply assume that the user knows what they're doing by launching your program. Try the connection, and if it fails because there is no Internet connection, you can tell the user about it and leave fixing the problem up to the user. You might also consider making your program's connection handling user-configurable: let the user tell you whether it's correct to check for a dial-up networking connection or not, and whether your program should blindly try the connection or not. Often the user knows more about their system than your program can guess.
---
With best regards,
A Manchester United Fan
The Genius of a true fool is that he can mess up a foolproof plan!
|
|
|
|
|
Dear All,
I have installed Windows Server 2003 and Visual Studio 2003 in my system.
After creating web applications when i try to execute,
in the browser the following error message comes.
"C:\WINNT\Microsoft.NET\Framework\v1.1.4322\Temporary ASP.NET Files\....."
in this path it is showing some alphanumeric file names like "10g..." and
"Access denied" message.
How can i solve this problem
|
|
|
|
|
Hi,
1) go to the IIS security settings, check the anonymous access as well as windows integrated authentication check boxes and run.
you will get required .
regards
GV Ramana
|
|
|
|
|
Is it possible to check whether an object has subscribed to an event or not? How can this be done. Need help!!!
thanks
-- modified at 2:10 Monday 26th December, 2005
|
|
|
|
|
Check whether the event is null or not. 
---
With best regards,
A Manchester United Fan
The Genius of a true fool is that he can mess up a foolproof plan!
|
|
|
|
|
the event is defined in a .net framework class, so can't check if it is null
|
|
|
|
|
analytiks wrote: the event is defined in a .net framework class, so can't check if it is null
Try reflection. Refer to this link.[^]
---
With best regards,
A Manchester United Fan
The Genius of a true fool is that he can mess up a foolproof plan!
|
|
|
|
|
I've already tried the code in the link,it did not work ~ maybe it id due to the fact that subscription to the event is during runtime depending on certain conditions ~ not sure though
|
|
|
|
|
it is not working
|
|
|
|
|
Is the event fired from within your class? If true, you can write a routine like this
class A
{
public bool IsSubscribed(MethodDelegate passedDelegate)
{
if (evt == null)
return false;
foreach (Delegate d in evt.GetInvocationList())
{
if (d == passedDelegate)
{
return true;
}
}
return false;
}
}
You can then use it like
A a = new A();
MethodDelegate thisMethod = new MethodDelegate(SomeMethod);
a.evt += thisMethod;
Console.WriteLine(a.IsSubscribed(thisMethod));
a.evt -= thisMethod;
Console.WriteLine(a.IsSubscribed(thisMethod));
Regards
Senthil
_____________________________
My Blog | My Articles | WinMacro
|
|
|
|
|
the event is not fired from my class ~ it is present in the FCL ~ i have the object that is supposed to subscribe to the event ~ the subscription to the event further depends on certain conditions ~ only if the conditions satisfy the object is subscribed to the event
|
|
|
|
|
i am in urgent need of media player for pda developed by using .net compact frame work and .net 2003. if anybody can help me. need to run it in pc 2002 emulator.
chimranashraf@yahoo.com
|
|
|
|
|
Hello!
I need to remove the Read-Only attribute from a directory and all it's child
directories... How can I do it?
Thanks in advance!
|
|
|
|
|
Hi,
System.IO.DirectoryInfo dir = new DirectoryInfo(strDirectoryName);<br />
<br />
FileInfo[] allfiles = dir.GetFiles("*.*");<br />
<br />
foreach(FileInfo f in allfiles)<br />
{<br />
if ((f.Attributes & System.IO.FileAttributes.ReadOnly) != 0)<br />
f.Attributes -= System.IO.FileAttributes.ReadOnly;<br />
}
I think you got wat you required.
regards
GV Ramana
|
|
|
|
|
Wasn't sure where to post this, but since my question is about .net 2.0 components I posted it here. Is there a way to make the menu and toolstrip have the appearance of OfficeXP instead of Office 2003? Or if you know of an article please post a link.
Thanks
|
|
|
|
|
For some reason I cannot find a solution to what probably amounts to a trival problem. I have tried placing code in the OnSize function to return before calling the base class for OnSize but this has no effect. Anyone know what I can set the min size and the max size of a formview and also of a dialog box? Also does anyone know how I can open a window with specific dimensions?
Thanks!
|
|
|
|
|
You can set the Minimum Size and Maximize size of a form or dialog using the following properties:
frm.MinimizeSize.Height=y;
frm.ManimizeSize.Width=x;
Similarly you can set their Maximize size. These properties for a form can be set through properties Windows also.
You can also set the size of the form or dialog using Size property and the location by using the Location property.
Akif
|
|
|
|
|
thanks! I haven't tried this yet, but I certainly will soon. [ ]
|
|
|
|
|
When I try to create the following structure in VB.NET...
[StructLayout(LayoutKind.Sequential)] Structure Struct1<br />
[FieldOffset(0)] Public Unk1 As Short<br />
[FieldOffset(35), MarshalAs(UnmanagedType.ByValArray, SizeConst:=23)] Public unk2() As Char<br />
[FieldOffset(97), MarshalAs(UnmanagedType.ByValArray, SizeConst:=23)] Public unk3() As Char<br />
End Structure
*NOTE: I replaced <>'s with []'s becuase the forums were parsing them.
I get the following error...
An error occurred creating the form. See Exception.InnerException for details. The error is: Could not load type 'Struct1' from assembly 'StructTest, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null' because it contains an object field at offset 35 that is incorrectly aligned or overlapped by a non-object field.
Any help would be appreciated-- thanks!
-Chad
-- modified at 1:18 Saturday 24th December, 2005
|
|
|
|
|
The problem is because your specifying a Sequential layout of the fields, then contradicting yourself by specifying the exact placement of the fields, which doesn't match the field packing size used by the Sequential layout.
Type this:
<StructLayout(LayoutKind.Explicit)> _
Structure Struct1
<FieldOffset(0)> Public Unk1 As Short
' You've left a rather large empty space between these two fields!
<FieldOffset(35), MarshalAs(UnmanagedType.ByValArray, SizeConst:=23)> Public unk2() As Char
<FieldOffset(97), MarshalAs(UnmanagedType.ByValArray, SizeConst:=23)> Public unk3() As Char
End Structure
RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome
-- modified at 13:43 Tuesday 27th December, 2005
|
|
|
|
General 
News 
Suggestion 
Question 
Bug 
Answer 
Joke 
Praise 
Rant 
Admin 
Submit an article or tip
