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Hi, i'm a newbie at C#, how can i know if a child form was terminated? Let's say that there are 10 child forms and I closed 2 child forms, how can I know that these forms were closed? Thanks 
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hello, for those who didnt know an answer to this, i have found an answer, refer to this site, it's really helpful http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=181891&SiteID=1
ciao
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my application closes a a few other applications which have system tray icons using the Process.Kill method. The application is closed succesfully, however they leave thier icons behind in the system tray. Is there any way i coould flush or refresh the system tray of useless icons.
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You shouldn't kill other process except in extreme circumstances. Doing so doesn't give the process a chance to do any cleanup - like remove its tray icons - or worse. The normal way to close another application is to post a WM_CLOSE message to its main window.
Steve
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To answer your question about cleaning up the icons, no there is no way to force the Tray to clean itself up.
RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome
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The only way i will refresh is if you point your mouse to the "destroyed" icons...
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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Tell the OP, not me. I already know that.
He was referring to a programmatic way of forcing the cleanup.
RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome
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Hi, I have created the following program first as a console application. Then I created a windows application and copied the class data there. It is shown below. In the console application, I have used the printData() method to output the data of an instance of a Person or Athlete class. I want to do the same, but now that output should be in the label.
Any help would be appreciated.
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
namespace windowsPracticingWithClasses
{
///
/// Summary description for Form1.
///
public class Person : System.Windows.Forms.Form
{
///
/// Required designer variable.
///
private System.ComponentModel.Container components = null;
//My instance variables
private string firstName, lastName;
private int age;
private double height, weight;
private string bankName;
private double bankAccount;
private double balance = 0;
private string squareColor;
# region Properties
//Properties
public string FirstName
{
get { return firstName; }
set { firstName = value; }
}
public string LastName
{
get { return lastName; }
set { lastName = value; }
}
public int Age
{
get { return age; }
set { age = value; }
}
public double Height1
{
get { return height; }
set { height = value; }
}
public double Weight
{
get { return weight; }
set { weight = value; }
}
public string BankName
{
get { return bankName; }
set { bankName = value; }
}
public double BankAccount
{
get { return bankAccount; }
set { bankAccount = value; }
}
public double Balance
{
get { return balance ; }
set { balance = value; }
}
public string SquareColor
{
get { return squareColor ; }
set { squareColor = value; }
}
# endregion
//Custom constructor
public Person(int age, double height, double weight, string bankName, double bankAccount, double balance)
{
//
// Required for Windows Form Designer support
//
InitializeComponent();
this.age = age;
this.height = height;
this.weight = weight;
this.bankName = bankName;
this.bankAccount = bankAccount;
this.balance = balance;
}
//Default constructor
public Person()
{
//
// Required for Windows Form Designer support
//
InitializeComponent();
}
#region My Methods
//My Methods
public void makeDeposit(int amount)
{
balance+= amount;
}
public void makeWithdrawal(int amount)
{
balance-= amount;
}
public virtual void printData()
{
Console.WriteLine("\nProfile: \n\nAge: " + this.age);
Console.WriteLine("Height: " + this.height);
Console.WriteLine("Weight: " + this.weight);
Console.WriteLine("Bank Name: " + this.bankName);
Console.WriteLine("Bank Account: " + this.bankAccount);
Console.WriteLine("Balance: " + this.balance);
}
#endregion
///
/// Clean up any resources being used.
///
protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
}
#region Windows Form Designer generated code
///
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
///
private void InitializeComponent()
{
//
// Person
//
this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
this.ClientSize = new System.Drawing.Size(292, 266);
this.Name = "Person";
this.Text = "Form1";
}
#endregion
}
class Athlete : Person
{
public string sport;
public Athlete(string sport) : base(23,5.6,120,"Chase",5671234,1000)
{
this.sport = sport;
}
public override void printData()
{
base.printData();
Console.WriteLine("Sport Practicing: " + this.sport);
}
};
class TestClasses
{
///
/// The main entry point for the application.
///
[STAThread]
static void Main()
{
Application.Run(new Person());
Person[] person = new Person[5];
person[0] = new Person(22,5.6,120,"Chase",5671234,2000);
person[0].printData();
Person[] athlete = new Athlete[3];
athlete[0] = new Athlete("Figure Skating");
athlete[0].FirstName = "Sarah";
athlete[0].LastName = "Hughes";
athlete[0].Age = 20;
athlete[0].Height1 = 5.5;
athlete[0].Weight = 120;
athlete[0].BankName = "Chase";
athlete[0].BankAccount = 434324;
athlete[0].Balance = 200;
athlete[1] = new Athlete("Martial Arts");
athlete[1].FirstName = "Kim";
athlete[1].LastName = "Chung";
athlete[1].Age = 21;
athlete[1].Height1 = 5.7;
athlete[1].Weight = 130;
athlete[1].BankName = "Citi";
athlete[1].BankAccount = 212312;
athlete[1].Balance = 300;
athlete[2] = new Athlete("Soccer");
athlete[2].FirstName = "Joe";
athlete[2].LastName = "Tribiani";
athlete[2].Age = 22;
athlete[2].Height1 = 5.6;
athlete[2].Weight = 140;
athlete[2].BankName = "Apple";
athlete[2].BankAccount = 123124;
athlete[2].Balance = 400;
for(int i = 0; i < athlete.Length ; i++)
{
athlete[i].printData();
}
Console.ReadLine();
}
}
}
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I am trying to open a .sln in vs 2005 but the error is:
The application for project ....csproj is not installed.
Make sure the applucation for project type (.csproj) is installed.
Thanks
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I've never seen that error before, but it looks like it wants to open a C# project. I'm guessing it thinks that C# isn't installed. You can go to Add/Remove Programs and select Visual Studio 2005 and there is a Change/Remove option. Click that and you will get a "Maintenance Mode" installation wizard. It should be able to install or repair the components you need.
Unfortunatly, if that does not work, then I don't know what it could be.
ColinMackay.net
"Man who stand on hill with mouth open will wait long time for roast duck to drop in." -- Confucius
"If a man empties his purse into his head, no man can take it away from him, for an investment in knowledge pays the best interest." -- Joseph E. O'Donnell
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I've actually seen this error when you've got a corrupted VS install. There is some fix as I recall, but it's probably best just to do a clean install of VS.
Tech, life, family, faith: Give me a visit.
I'm currently blogging about: Little House on the Flickr
Judah Himango
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hey guys!
how do u loadin gthe resource string in C# 2005?
thanks
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If you are using Visual Studio then it makes it very easy. When you create a resource file, it puts a nice auto generated code file behind it containing one class, that class has the same name as your resource file, and it contains lots of static methods. Each method name corresponds to the identifier you've given each string. So, say you've named your resource file MyReources.resx and you have a string named "MyString" you can access it in you code like this:
MyResouces.MyString
ColinMackay.net
"Man who stand on hill with mouth open will wait long time for roast duck to drop in." -- Confucius
"If a man empties his purse into his head, no man can take it away from him, for an investment in knowledge pays the best interest." -- Joseph E. O'Donnell
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by the way, does it do the samething in managed c++ 2005
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Hi,
I'm trying to get all the paths of the open applications in a C# program.
What I need is only paths of open windows(the ones the "Task Manager" shows under his "Applications" Tab),i.e. the windows that are shown in the Taskbar.
For example if there is only 1 Word file open, named "1.doc", I need it's full path. (for example : "D:/Temp/1.doc").
Thanks, Gal.
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So what you're asking is to get the full path of opened documents, not the paths of applications.
For starters, you can get the running processes (which includes applications) using the System.Diagnostics.Process.GetProcesses() method.
But from there you're on your own. There's nothing built into the framework (nor the Win32 API, AFAIK) that will let you see which document is opened by a program, simply because there is no way of letting Windows know when an application has a document opened. Windows does know when a file is opened, so you might be able to find some Win32 APIs that you could query to find the opened documents of the system.
Tech, life, family, faith: Give me a visit.
I'm currently blogging about: Little House on the Flickr
Judah Himango
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Hi,
I do need open documents but also open programs, which I opened (i.e. if the Visual .NET is open, I need the path to it's .exe file also)- all open windows(windows of documents and programs).
You said windows does know when a file is open.
I looked in the System and Environment objects but didn't find anything yet. From the process list I couldn't get anything usefull.
Do you know where windows keeps it? what Objects besides the 2 I mentioned might keep that kind of information?
Maybe the Task Manager keeps it since in his application tab it does shows exactly the open windows, though I couldn't find any API related to the Task Manager, nor files with that information that the Task Manager manages.
Thanks,
Gal.
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Task Manager sees Processes, not open documents. The only reason TaskManager sees those is because the application treats each open document as a seperate process.
There is no API function anywhere that will tell you the open documents of any application. That has to be exposed by each individual app, and even that isn't done consistantly. This means you'll have to write code for every different app out there (Good Luck!) to enumerate their open documents.
RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome
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Hi all,
I am using RSACryptoServiceProvider and RSAPKCS1SignatureFormatter to create private/public keys and signed data with the private key (later decrypt using public key).
i know how to get teh Module and Exponent inorder to send and use it later.
but i also want to get the private key so i can use it many times more.
now i use this code:
byte[] mod=RSA.ExportParameters(true).Modulus;
byte[] exp=RSA.ExportParameters(true).Exponent;
RSAParameters RSAKeyInfo= new RSAParameters(); //create new keyinfo
RSAKeyInfo.Modulus=mod; //set the modulus
RSAKeyInfo.Exponent=exp; //set the exponent
and later i creat new key and import the modulus and exponent.
it is working fine for the public key but if i want to Sign again using that key , i get an exception saying that the new key do not contain the Priavte key.
what can i do? how can i get hold of the Public key?
Thanks alot,
Ran.
R.Z
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I intend to make a dictionary application. My problem is how to make my owner data file. My data file is too big. How can i can read it quickly at any position in file, what's the structure in file. Can you so some information involve my problem. Thank a lot
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I guess you could make an index file that keeps track of where in the file each entry is.
The structure of the file?? That's entirely up to you. Start with what you're putting in this file, laying out the fields for what you're storing.
If you don't know this already, you're going to have a very hard time writing this app. I'd start writing sample applications that test writing, indexing, and reading your file. Do the research first to teach you what you need to know, then write the app.
RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome
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Hi,
is there an AutoSave example to automagically safe a file at certain interval in time?
I tried use the Timer event but the problem is to tackle when the save-destination-time is due/passed.
I would like to skip looking into windows services as that would make it just 'too much'  )
Thanks.
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Run a separate thread in the background
Thread thd = new Thread(new ThreadStart(autoSave));
thd.Start();
private void autoSave() {
Thread.Sleep(20000);
}
WM.
What about weapons of mass-construction?
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Thanx Willem, that is short and just what it should do )
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