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Why don't you use a System.Collections.ArrayList or a System.Collections.Generic.List<t> ?
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Ahh now this sound like my kind of tool. I planned on writing something similar once to graphically map transactions as they moved through BizTalk.
When you use an ArrayList or List<> the structure is such that an initial size is created and dynamically grows as you add additional items. It is better in the performance department if you generally know how many items will go into the array, but it is not a necessity.
You can also deploy custom dictionaries as well so you may want to do something like this:
Applications go into a List<icommunicators> (all the applications inherit the same interface making it easy to store different programs but treat them as the same type)
Application fires a trigger event
Listener (your code) plots that event but also adds to a Dictionary<string, eventlist="">
ReceivedEventEventHandler(object sender, ListenerEventArgs e)
{
ICommunicator details = (ICommunicator)sender;
PlotEvent(details.Name, e.EventObject);
dictionary[details.Name].Add(e);
}
Now you can expose a menu selection to show historical event data for any program in the list, trending across applications, frequency of events across time, and other fun statistical stuff.
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hi,
i have to implement zip and unzip files in my application. The requirement is i have to take zippd file from mail attachment, unzip it to a particular location and use it. On the other hand i have to zip a files from a particular location and send it to someone as mail attachment.
Any help is appreciated. Thanx in advance
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Explore the System.IO.Compression namespace.
This page[^] has an example for reading zip files.
ChrisB
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I have write small programme that display the message "Hello World",i use notepad for that & save as .cs extention,then i compile it in .Net command prompt using csc myfilename.cs,but that display the error.Have i done any wrong thing here or is that way should i compile the C# file?
Pls Help Me
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Standard question #1: what's the error?
--------------------------------------------------------
My portfolio & development blog
Q:What does the derived class in C# tell to it's parent?
A:All your base are belong to us!
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Pls tel me is that way should i compile using .Net platform?,or different way?
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Yes you have to compile it that way.
But you can use a IDE such as Visual C# Express which is free (search Microsoft's webpage). You only press F5 there and everything is done for you.
--------------------------------------------------------
My portfolio & development blog
Q:What does the derived class in C# tell to it's parent?
A:All your base are belong to us!
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Thx,
If we thing i use to use VC#.net 2003 for diplay small message like "Hello World",hw can i do that,should i use windows application or just library file?
If i use windows application frm vc# there we dont have namespace and directive & all no then hw do we do that?
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CWIZO wrote: Standard question #1: what's the error?
That is standard question #2:
Standard question #2:
What error message do you get?
---
b { font-weight: normal; }
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My bad
--------------------------------------------------------
My portfolio & development blog
Q:What does the derived class in C# tell to it's parent?
A:All your base are belong to us!
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You sound a little lost at sea. Download VC2005 Express. You will still have an error, most likely, but the IDE will tell you what it is. I have no idea what your comment on namespaces means, all C# code has namespaces.
Christian Graus - Microsoft MVP - C++
Metal Musings - Rex and my new metal blog
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Im using vs.net 2003.pls tel me if i want display message like "Hello World",hw can i do it in vc#.net 2003.
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If you have VS2003, why on earth are you compiling on the command line ? Create a new project in the IDE, and press F5 to compile and run it. As I said, you'll probably get the same error, but more meaningful info on what you're doing wrong.
And if you're at the 'how do I make 'hello world'' stage, I strongly recommend buying a book and working through it.
Christian Graus - Microsoft MVP - C++
Metal Musings - Rex and my new metal blog
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Thx Sir,I got my answer myself and im thx to u as wel.I did some programme using vc# created some COM+ programme also but sometimes it getting more errors.
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Hi all.
I have a picture box that stretches over my entire form, as I use the an image for the background of the form. On top of the form I have labels, I need to set the back color of the labels to transparent, when I do this via the properties of the label it makes the backcolor of the label gray, I asume it is because that is the color of the form, but i need it to so the image through the label.
What must I do?
Is there some way that I can copy the image of the picturebox at the location of the label and then set that as the backcolor for the label??
Any help will be much appreciated
Thanx in advance
He who laughs last is a bit on the slow side
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Why not set the Form.BackgroundImage to the background image and then set the label.BackColor = Color.Transparent?
ChrisB
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Have absolutly no idea..
Thanks, exactly what I needed to do, only having some trouble with the image now, I see that its semi transparent, gives it that sort of vista look
He who laughs last is a bit on the slow side
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I have a class inheriting another class. Im using the property grid to let the user modify data in that second class. the base class has an enum I dont want displayed in the property grid. Ive used attributes to hide and document items int the base class. what can be done to hide things when viewing the property grid from the inherited class?
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I'm not sure if you poorly wrote your question for brevity or if you have problems using English. But I will try to answer your question as I understand it. I suggest you try to be as verbose in your future questions as possible.
An object, whether it is a base object or an inherited object, when placed into a property grid will be processed based on the attributes defined for each public field. If there is a value in an object that you do not want visible, use the [Browsable] attribute to control visibility. If you have elements in the base class that should never be seen, then just make them non-browsable. If, on the other hand, you want the base class visible when it is in the property grid, but not visible when an inherited object is used is a way different problem.
One possible way (which will be a big pain, but will solve your problem) is to have the inherited object be a delegate of the base class. This requires making all public elements in your base class virtual, and in the inherited class you must inherit all elements. The ones that you do not want to polymorph you have the overriden object do nothing else but call the base method.
With all public elements inherited, change the visibility scope with their attributes and see if that does the job of controlling things.
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Hi all! I'm using following code
string[] arrWords;
StreamReader objSr;
StreamWriter objSw;
try
{
if (openFileDialog1.ShowDialog() == DialogResult.OK)
{
txtFileName.Text = openFileDialog1.FileName;
objSr = new StreamReader(txtFileName.Text);
string strFile = objSr.ReadToEnd();
arrWords = strFile.Split('\n');
objSr.Close();
objSw = new StreamWriter(txtFileName.Text, false);
for (int i = 0; i < arrWords.Length; i++)
{
arrWords[i] = arrWords[i].ToLower();
objSw.WriteLine(arrWords[i]);
}
objSw.Close();
}
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString());
}
finally
{
if (objSr != null)
{
objSr.Dispose();
}
if (objSw != null)
{
objSw.Dispose();
}
}
1. Now I want to check in finally block if file is opened (due to any exception it did not get closed) and close it(like we do with a Connection object in ADO.net) over there. How can I do this?
2. Also a warning comes if I use code like this that objSr and objSw is used before it has been assigned a value how to overcome it.?
Thanks
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I would move the call to objSw.Close() into the finally block, as it will always be executed there and then you don't have to worry about any exceptions that may or may not have occured. You should do this on most occasions to make sure that the connection gets closed correctly no matter what happens.
To overcome the warning, set the objects to null on declaration. This means they are explicity set to null, and you're not inferring anything.
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Thanks Steve! the second warning haunted me for a long time. Now I got at it.
Regards
Nitin
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You could do away with the try/finally blocks and use the using statement instead.
using (StreamReader objSr = new StreamReader(...))
{
using (StreamWriter objSW = new StreamWriter(...))
{
...
}
}
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I'm looking for a way in C#.NET 2.0 to not allow my application from being closed by Task Manager by doing an End Task. Was thinking about displaying an error message saying you can't close this task. Any Ideas?
Also I'm looking for a way to detect certain applications are started and not allow them to start with a message box that says something like "Not aloud to run this app".
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