Re: Application.Exit() - How do I return an exit code. - C# Discussion Boards

cbeasle13-Apr-06 7:42

3-Apr-06 7:42

I have several labels stored in an array of label controls (Label[] drgLabel). The labels are placed in a panel control. I want to be able to move the labels around the panel using drag and drop technics. I do not know how to get the mouse_over event associated with the label because the labels do not have specific names. Do I have to write the mouse_over event for the array of labels (drgLabel)? Any suggestions will be greatly appreciated.

cbeasle1

Re: Drag and Drop Label in a Panel

Robert Rohde3-Apr-06 8:10

Robert Rohde

3-Apr-06 8:10

You can bind the events in a loop:

foreach (Label label in drgLabel) {
label.MouseOver += new MouseEventHandler(drgLabel_MouseOver);
}

Which Label actually received the vent can be obtained from the sender. You surely have to cast this one:

private void drgLabel_MouseOver(object sender, MouseEventArgs mea) {
Label label = (Label)sender;
//Now do whatever you want to do with this Label
}

All events needed for drag and drop can be bound this way.

why is the program running so slow

Agyeman3-Apr-06 6:39

Agyeman

3-Apr-06 6:39

I have a program that was running really well on my computer. For sometime now, it has been running really slow and I find it hard to understand. I have scanned for viruses and spyware but couldn't find any and no possible reasons as the why the program is running that slow. Any suggestions? My computer specification is : pentium4, 3.40GH, 512MB

Nana

Re: why is the program running so slow

Ed.Poore3-Apr-06 7:47

Ed.Poore

3-Apr-06 7:47

1) Is this the correct forum, is it a C# program?
2) Has your disk been defragged recently?
3) Do you have lots of services / background apps running?

Ed

Re: why is the program running so slow

Agyeman3-Apr-06 8:15

Agyeman

3-Apr-06 8:15

It is a C# project i am working. I do not have lots of back apps running. This is because I am running below the physical memory. Yes it has been fragmented . Thank you.

Nana

Re: why is the program running so slow

Guffa3-Apr-06 7:55

Guffa

3-Apr-06 7:55

Well, there could be thousands of reasons...

What kind of program is it? What does it do? Who made it? How slow is "really slow" really?

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b { font-weight: normal; }

Application.Exit() - How do I return an exit code.

Mark42623-Apr-06 6:36

Mark4262

3-Apr-06 6:36

I am new to C#, and I have compiled a simple exe (a WindowsFormsApp, not a console app) to perform an operation, and want to notify the calling application when it has completed and return a status code.

ApplicationExit();

Just seems to exit, and even if I try to set a return code with:

System.Environment.ExitCode = #;

I don't seem to get anything either.

Can anyone help??

Thanks,
Mark

Re: Application.Exit() - How do I return an exit code.

Braulio Dez3-Apr-06 6:58

Braulio Dez

3-Apr-06 6:58

Hello,

Try the following

[STAThread]
static void Main()
{
Application.Run(new Login());
return 999;
}

In the retun, you get the exit code

/// -----------------------
Braulio Díez

http://www.bdiez.com
/// -----------------------

Re: Application.Exit() - How do I return an exit code.

Ravi Bhavnani3-Apr-06 7:08

Ravi Bhavnani

3-Apr-06 7:08

Isn't Main() a void method?

/ravi

My new year's resolution: 2048 x 1536
Home | Music | Articles | Freeware | Trips
ravib(at)ravib(dot)com

Re: Application.Exit() - How do I return an exit code.

Ed.Poore3-Apr-06 7:49

Ed.Poore

3-Apr-06 7:49

Doesn't have to be, valid types are void and int according to the C# spec I seem to remember, same as in ANSI C

Ed

Re: Application.Exit() - How do I return an exit code.

Ravi Bhavnani3-Apr-06 9:01

Ravi Bhavnani

3-Apr-06 9:01

Ah.

/ravi

My new year's resolution: 2048 x 1536
Home | Music | Articles | Freeware | Trips
ravib(at)ravib(dot)com

Re: Application.Exit() - How do I return an exit code.

vineas3-Apr-06 7:53

vineas

3-Apr-06 7:53

Ravi Bhavnani wrote:
Isn't Main() a void method?

Main() can be either void or int:

[STAThread]
static int Main(string[] args)
{
  // do stuff
  if (error)
    return 1;
  else
    return 0;
}

-----
In the land of the blind, the one eyed man is king.

Re: Application.Exit() - How do I return an exit code.

Mark42623-Apr-06 8:24

Mark4262

3-Apr-06 8:24

Ravi,

Yes, your code works perfectly. Thanks!

This code works also:

Application.Exit();
Environment.Exit(2445);

Thanks,
Mark

Re: Application.Exit() - How do I return an exit code.

Ravi Bhavnani3-Apr-06 9:01

Ravi Bhavnani

3-Apr-06 9:01

Thanks, but I think you meant to thank Braulio. Smile | :)

/ravi

My new year's resolution: 2048 x 1536
Home | Music | Articles | Freeware | Trips
ravib(at)ravib(dot)com

Re: Application.Exit() - How do I return an exit code.

Ravi Bhavnani3-Apr-06 9:02

Ravi Bhavnani

3-Apr-06 9:02

Ah.

/ravi

My new year's resolution: 2048 x 1536
Home | Music | Articles | Freeware | Trips
ravib(at)ravib(dot)com

Detecting an already running application

royk1233-Apr-06 5:44

royk123

3-Apr-06 5:44

Hi,

When loading a program how do i check if an instance of the same program is already runing, and if so maximizing it from the system tray instead of opening a new instance?

tnx

Roy

Re: Detecting an already running application

Stefan Troschuetz3-Apr-06 5:56

Stefan Troschuetz

3-Apr-06 5:56

Search the articles here on Code Project. There are many that cover this topic.

www.troschuetz.de

crash on Win32 call

sreejnarayan3-Apr-06 5:04

sreejnarayan

3-Apr-06 5:04

Hi, I get a window crash on executing the following code. Problem tracked on sending the message RB_SIZETORECT. Please let me know if there is any solution for this and anybody faced same problem. Thanks ..

Win32Wrapper.RECT rbWindowRect = new Win32Wrapper.RECT();

Win32Wrapper.GetWindowRect(m_ReBarWindowHandle, out rbWindowRect);

int height = Win32Wrapper.SendMessage(
m_ReBarWindowHandle, Win32Wrapper.RB_GETROWHEIGHT, 0, 0);

Win32Wrapper.RECT insetRect = new Win32Wrapper.RECT();

insetRect.Left = rbWindowRect.Left;
insetRect.Top = rbWindowRect.Top;
insetRect.Right = rbWindowRect.Right;
insetRect.Bottom = (rbWindowRect.Top + height);

Win32Wrapper.SendMessage(
m_ReBarWindowHandle,
Win32Wrapper.RB_SIZETORECT,
0,
ref insetRect);

test test

Dynamically displaying class properties

IAmChris3-Apr-06 4:54

IAmChris

3-Apr-06 4:54

Hello,

When you build a custom control and place it on the toolbar in the VS IDE, then add it to a form, the public properties are dynamically loaded for that control/class in the properties window, right? I want to replicate that functionality in a test application.

Basically I'm building a class library that serializes/deserializes classes into/from XML documents on a network stream (through a socket.) As the serialized objects come down the wire and are deserialized into objects, they are sent to the (Windows) UI through events. I want to store them into something like a ListView (using a derived class from ListViewItem that holds a reference to the object) then when I click on an item in the ListView, a properties window is displayed showing all the public properties of that object along with the values. Then I can make sure that the objects are being serialized/deserialized correctly.

Any ideas how would I do this?

Thanks

Re: Dynamically displaying class properties

Stefan Troschuetz3-Apr-06 5:09

Stefan Troschuetz

3-Apr-06 5:09

You can achieve this by using reflection. The following lines of code should point you in the right direction.

PropertyInfo[] propertyInfos = obj.GetType().GetProperties();
for (int index = 0; index < propertyInfos.Length; index++)
{
  propertyInfos[index].Name; // Gives the name
  propertyInfos[index].GetValue(obj); // Gives the value
}

www.troschuetz.de

Re: Dynamically displaying class properties

IAmChris3-Apr-06 5:40

IAmChris

3-Apr-06 5:40

That't great! Thank you very much

Re: Dynamically displaying class properties

darkelv4-Apr-06 2:33

darkelv

4-Apr-06 2:33

You can use a propertygrid to display the properties of the class.

You can make changes to the object through the propertygrid though.

help on Smart device Application

DotNet novice3-Apr-06 4:53

DotNet novice

3-Apr-06 4:53

I have an alarm application for a Pocket PC (DELL Axim x51). When the alarm ring I play a beep sound using soundplayer class's PlayLooping method. But the sound stops on touch of any part of screen. I should play the sound until the user hits the STOP/SNOOZE menu buttons(which I have in my application). I display a messagebox when it starts playing. please suggest me how to keep the sound playing until the user hits my menu buttons. I do stop it in menu's event handler but before that when the user clicks on the screen it stops. I need to prevent this from happening and should make the sound stop only on click of my menu items.

--Shobha

-- modified at 10:56 Monday 3rd April, 2006
I have forgot to mention that I'm using OPENNETCF's Soundplayer class and my project is on Visual Studio.NET 2003.

Convert .png to .gif

realmontanakid3-Apr-06 4:18

realmontanakid

3-Apr-06 4:18

Hi

I got an .png Image and want to convert it in an .gif file. When i try to show the .png file in an img tag the backround color of the image is grey. I heard Inetrnet Explorer can't show transparent .png files.

So i want to convert it in an .gif file. But after that the background of my .gif file is black..

<br />
String gifFilePath2 = System.IO.Path.Combine(path, fileName + "_scaled.png");<br />
String gifFilePath3 = System.IO.Path.Combine(path, fileName + "_scaled.gif");<br />
<br />
System.Drawing.Image imgGIF = System.Drawing.Image.FromFile(gifFilePath2);<br />
            Bitmap bmpGIF = new Bitmap(imgGIF, size);<br />
            bmpGIF.Save(gifFilePath3, System.Drawing.Imaging.ImageFormat.Gif);<br />

How to get: selected or not selected?

Dima Filipiuk3-Apr-06 3:54

Dima Filipiuk

3-Apr-06 3:54

How to get: selected or not selected some text or images on page of axWebBrowser? It is for work with clipboard.

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.