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Hi Sirs,
I want to know how can we unpack the C# dll files i mean i want to c all the classes in all namespaces like System.IO etc. in java we can easily do it but i don't know how can we do it in .NEt please help me in this regard..
thanx.
Pravo
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Hi,
if you use Visual Studio, once you add a reference to a DLL and the corresponding
"using" statement, Intellisense will show you all available methods, fields, ...
The "Refector" tool by Lutz Roeder[^]
is in many ways similar to the "jad" tool that you are familiar with.
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thanx a lot Luc Pattyn for answering , but actually i want to c the code of the classes in dll like code of Button class and so on so that i can c whats written in it . Same we do in java with javadecompiler, so please let me know how can i do it.
thanx
Pravo
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Hi there, check out the VS addin Reflector, this gives you what you're after
regards
Pete Kane
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sorry I didn't see Luc's post
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Hi,
I got a piece of heavy duty code, which makes my app look frozen.
So i added threads so the GUI stays normal, now i want to add a progressbar.
But i cant call progressbar1.performstep() from the seperate thread,
After some looking i found out that i have to invoke (i think) but i have no idea how to do that,
i found some textbox examples and i just dont get them.
Thanks!
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Hi,
Yes, Invoke() is what you need.
There are many examples in the articles on this site.
For one, look at my Sokoban article (the pasteOneMove method).
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hi sirs n madams
i m very new with c# and want to learn everything ebout it
can u please provide me with some code snippets!!!
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There are thousands of articles here, a lot of them about C#.
some examples[^]
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Hi all,
Is it possible to do down-casting? If so, how?
Example:
Public class A
{
}
Public class B : A
{
}
Void main()
{
A a = new A();
B b = (B)a; // <-- down-cast, a run time error.
}
Thanks in advance.
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No you can not: it would require an existing object (a) to suddenly become larger
(in case B has more data members, more methods, than A); this is impossible.
The one time "downcasting" is allowed is when reducing the capabilities, as in
int i=1234567;
short s=(short)i;
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i need to a event for my form as lostfocus
123
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Control.LostFocus
and
Form : Control
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the form is not has loastfocus
123
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Form extends Control
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I've been looking at Matias' Half Keyboard and 503 Keyboard (http://www.matias.ca/halfkeyboard/index.php) and it seems like a rather neat idea. However, I'm not willing to spend $100 to find out I don't like it. So, I decided to try making a program/windows service that would intercept any keystroke, and via a configurable mapping, pass the mapped key on to windows. The remapping of keys, I can do. What I need help on is how to trap keyboard signals from getting to windows, and then sending the ones I want through. If anyone has suggestions, pointers, or links to articles about this kind of thing, please share.
I might consider working with others on this project as well. I've always wanted to try a colaborative project, and put out some open-source apps.
A soft glow comes from the pit in the darkness.
The clicking noise become faster - and louder.
A wind begins to stir up from the pit, as the
creature flexes it's wings, preparing for flight.
You stare into the pit, and hear a voice say
in your mind, "If you survive the encounter,
declare it to the world."
The Code Demon Rises.
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You will need to install keyboard hook. Search google and/or codeproject for this term and you will find what you need.
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To reproduce, run the code.
Observed: Form is shown
Expected: message box should displayed.
How to fix ?
Andrus.
using System;<br />
using System.Windows.Forms;<br />
using System.IO;<br />
<br />
class main {<br />
<br />
[STAThreadAttribute()]<br />
<br />
public static void Main() {<br />
File.Delete("c:\\test");<br />
using (FileSystemWatcher watch = new FileSystemWatcher()) {<br />
watch.Path = "c:\\";<br />
watch.Filter = "test";<br />
watch.Created += new FileSystemEventHandler(OnChanged);<br />
watch.Deleted += new FileSystemEventHandler(OnChanged);<br />
watch.Changed += new FileSystemEventHandler(OnChanged);<br />
watch.EnableRaisingEvents = true;<br />
}<br />
FileStream oFs = new FileStream("c:\\test", FileMode.CreateNew, <br />
FileAccess.ReadWrite);<br />
StreamWriter oWriter = new StreamWriter(oFs);<br />
oWriter.Flush();<br />
oWriter.Close();<br />
oFs.Close();<br />
File.Delete("c:\\test");<br />
Application.Run(new Form());<br />
}<br />
<br />
static void OnChanged(object sender, FileSystemEventArgs e) {<br />
MessageBox.Show(e.FullPath + e.ChangeType.ToString());<br />
}<br />
}
Andrus
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Hi,
AndrusM wrote: using (FileSystemWatcher watch = new FileSystemWatcher())
so you dispose of the FileSystemWatcher and expect it to continue working for you ?
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Dear all,
I've got a problem that I just cannot figure out. I must have tried just about everything. I'm hoping that one of you can help me out here.
My main application has got a form referenced, like this :
private Control control1;
This will allow me to call a method inside the form Control , like this :
private void Click(Object sender, EventArgs e)<br />
{<br />
control1.Method();<br />
}
Works perfect. The method on the form Control is executed.
The problem :
I created another form , that I call from inside the form Control :
private void Click_button(Object sender, EventArgs e)<br />
{<br />
ChildForm child = new ChildForm();<br />
child.Show;<br />
}
In that child form I also have got the same Control form referenced, because I want to call the same method exactly the same way as I would from the main application :
private Control control1
and a method to call the method on the Control form.
private void InvokeMethodOnControl()<br />
{<br />
Control.Hello = "a value";<br />
control1.Method();<br />
}
Only the value Control.Hello is passed back to the Control form ( in which I have a public string referenced ( public static string Hello; ) but the Method ( control1.Method() ) is not executed.
Can anyone tell me what I am doing wrong ? .. this is giving me a headache.
Kind regards,
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Hi Rick,
I cant tell from the available code, please show more.
What is Method() supposed to do ? How are you sure it does not execute ?
(are you logging ? single-stepping ? what ?)
Is there a try-catch surrounding the call to InvokeMethodOnControl() ?
Are you showing all exceptions if any (as opposed to just throwing them away) ?
You might want to add another Control.Hello2="something"; in InvokeMethodOnControl().
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even i m not sure from the code given by u
copy the whole code and paste it over here so that i may be able to answer u correctly
currently i can just guess that instead of declaring it as private Control control1;
just declare it as
public Control control1;
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Rick van Woudenberg wrote: private void InvokeMethodOnControl()
{
Control.Hello = "a value";
control1.Method(); <-insert breakpoint here
}
Have you tried to set up breakpoint and step into InvokeMethodOnControl? What is happening?
"Throughout human history, we have been dependent on machines to survive. Fate, it seems, is not without a sense of irony. " - Morpheus
"Real men use mspaint for writing code and notepad for designing graphics." - Anna-Jayne Metcalfe
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Hi Guys,
Thank you all for trying to help me I highly appreciate it ; However, it's extremely hard to explain what I mean. So I hacked together a little testapp that demonstrates the error. It's attached to this post and it's zipped. Just run the binary, and you'll know what I mean.
http://cc786011-b.eo1.fl.home.nl/download/files/TestApp.rar[^]
Cheers,
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the variable "f2" seems to occur exactly twice in the entire solution:
once in Form3.cs at line 24: f2.Method(); // This will give an object reference error
once in Form3.designer.cs at line 74: public Form2 f2;
I am not surprised by a NullReferenceException !
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