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Hi,
there is no such thing, a method will execute when called, whether the return value is
used somehow or not; so you can not enforce its use.
The situation is different with a property: you can not invoke a property unless
you either assign it a value (setter) or read AND use its value (getter).
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Thanks for the response. You confirmed that the situation is as I had thought it to be, in that the use of the returned value is optional and cannot be checked.
Alan.
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How may I add an swf file into a web application in aspx file so that it will start running when an specific buttun is pressed(a button except of the swf link).
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I'm not sure how to communicate between swf and asp events but one approach could be for example displaying an image instead of swf and when the button is pressed load the swf by any mean you want
I Wish the Life Had CTRL-Z
Wizard's First Rule : People are fool,they believe what they want to believe or what they afraid to believe
www.subaitech.blogspot.com
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My Code in C#:
Object o1=new Object();
Object o2;
How can i copy the o2 object to be exactly like o1( no a reference. o2=o1 is reference).
i tried o2.copy(o1) or something like this but the method "copy" does not exist  ;
Can you help me?
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You can create an exact copy of the object using Clone() method if that type implements ICloneable interface
Do more work
Make more mistakes
Learn more things
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by the way, i am using Visual Studio 2008.
what do you mean type? which type?
i added "ICloneable" here:
public partial class Form1 : Form,ICloneable
{
Object o1=new Object();
Object o2;
}
Thanks you
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Admin887 wrote: // o2.clone() does not exist 
It doesn't help if you appear to be angry with the person that tried to help you. Especially, when it seems you have misunderstood that assistance.
You cannot clone a System.Object because it does not implement ICloneable. Adding it to the Form1 class will not help, it only demands that you provide an implementation for the Form1 class.
Admin887 wrote: what do you mean type? which type?
A "type" in .NET can be a class, a struct, an enum, and so on.
The "type" the person was referring to was the type of the object which you are trying to clone. You can only add ICloneable to types that you create. You cannot add it to existing types.
Now, what do you really want to do? Creating a System.Object is generally not a very useful thing to do.
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First of all, i am very sorry, really.unintentionally i added this smile. I do not mean it. i am very nice guy 
And now to the question:
I created a GroupBox(groupBox1) that contains textBox and buttons(i created this with the design option on the Form).
i want to create a new Tab(only with code without designing) that contains gruopBox(g) exactly like groupbox1.
GroupBox g = new GroupBox();
Thank you for your attention
G.
modified on Sunday, June 29, 2008 5:30 AM
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Hello all
I am hoping someone can help me here as I have been asked to write a little application which will report on the machine it is installed information such as operating system, ram, pagefile, whether oracle is installed and what version, etc, etc
I was hoping people would have any useful suggestions of how they think I can get all this information using C# as I am not sure, I was thinking of maybe the registy for some things but was hoping someone had some better suggestions.
Thanks in advance for any help that can be offered
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Hey all, first-time-poster long-time-reader, etc. 
I have already managed to use CryptoStream and FileStream to encrypt an individual image into another single file, and also then used CryptoStream, MemoryStream and then Image to decrypt and display the image in a picturebox on a form. This way none of the data is actually stored, unencrypted, on the hard drive (unless the user hibernates the machine with it in memory) - this is very important.
However, what I want to do is to 'import' multiple images into one (preferably compressed) file - so I need to concatenate them somehow and then run compression on them. This file needs to then be able to be unencrypted, decompressed and split back into the respective images, providing the user the ability to view each image.
Please note: I can't use temporary files, everything up until the saving of the one main encrypted file needs to be done in memory.
I don't know where to start, just wondering if anyone could point me in the right direction?
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Hi friends.
I have a XML file like this :
<?xml version="1.0" encoding="utf-8"?>
<root ELEMENTS="11">
<BOOKMARK1 ID="1" />
<BOOKMARK1 ID="2" />
<BOOKMARK1 ID="3" />
<BOOKMARK1 ID="4" />
<BOOKMARK1 ID="5" />
<BOOKMARK1 ID="6" />
<BOOKMARK1 ID="7" />
<BOOKMARK1 ID="8" />
<BOOKMARK1 ID="9" />
<BOOKMARK1 ID="10" />
<BOOKMARK1 ID="11" />
</root>;
I want select root's ELEMENTS attribute value.
I used this code :
X_Element = XElement.Load(FileName);
MessageBox.Show(X_Element.Nodes().First().Parent.Attribute("ELEMENTS").Value.ToString());
Is there a better way or this way is good for my work ?
Freshman
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M-Dayyan wrote: Is there a better way or this way is good for my work ?
Yes, you need to pay attention to what you are doing and to what each of the objects already are.
I'm curious to know what your thought process of this was:
X_Element.Nodes().First().Parent
Becuase all that code does is get you back to the starting point. In other words:
X_Element == X_Element.Nodes().First().Parent
Also, the Value property on XAtribute already returns a string, so why redundantly call ToString() on it again?
Your code could be reduced to:
X_Element.Attribute("ELEMENTS").Value
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Great.
Thank you.
Freshman
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i want to create crystal report in run time, means through C# hard code
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prakash_adysoft wrote: run time
prakash_adysoft wrote: hard code
Surely that is mutually exclusive. If you hard code something the it is set at compile time, not at runtime.
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Hi all,
I am really stumped on this one so really appreciate any help.
I have a .net service which during OnStart creates a Process() to another .NET exe which I want to display a notify icon in the system tray and show a form. However the Main(string[] args) event in the exe is not firing even though the process is started (exe exists as process in Task Manager) All this code works from another Test exe but not the service. (Full Code Below). I have updated the registrykey for the service to allow this but have had no imrovement.
Cheers
Stu
*****Service*****
protected override void OnStart(string[] args)
{
System.IO.StreamWriter sw = new System.IO.StreamWriter(@"C:\CodeDir\KnowledgeAssist\KAClientManager\bin\Debug\Test1.txt", true);
sw.WriteLine("0");
try
{
Process notify = new Process();
notify.StartInfo.FileName = @"C:\CodeDir\KnowledgeAssist\KANotify\bin\Debug\KANotify.exe";
notify.Start();
sw.WriteLine("1");
}
catch(Exception ex)
{
sw.WriteLine(ex.Message);
}
sw.Close();
}
*****EXE*****
public static void Main(string[] args)
{
//new TrayIcon();
System.IO.StreamWriter sw = new System.IO.StreamWriter(@"C:\CodeDir\KnowledgeAssist\KAClientManager\bin\Debug\Test1.txt", true);
sw.WriteLine("Main");
sw.Close();
Application.EnableVisualStyles();
Application.SetCompatibleTextRenderingDefault(false);
Application.Run(new Form1());
}
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Services run on their own desktop. The exe you launched is running on another desktop so you can't see it.
Giorgi Dalakishvili
#region signature
my articles
#endregion
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Hi all,
Doing an app which enables me to write a message and send it via email. I chose to use my gmail account. Here is the code...
private void button1_Click(object sender, EventArgs e)
{
try
{
MailMessage mail = new MailMessage("fromMe@gmail.com", "toRecipient@hotmail.com", "testing subject here", txtMessage.Text);
SmtpClient emailClient = new SmtpClient("smtp.gmail.com",586);
System.Net.NetworkCredential SMTPUserInfo = new System.Net.NetworkCredential("myusernameHere@gmail.com", "mypasswordHere");
emailClient.UseDefaultCredentials = true;
emailClient.Credentials = SMTPUserInfo;
emailClient.Send(mail);
lblStatus.Text = "email sent";
}
catch (Exception ex)
{
lblStatus.Text = ex.Message;
}
}
I keep getting a "Failure sending mail" exception.... something must be missing or wrong... any ideas please? Cheers
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I was wondering that, is there any way to access windows clipboard data within a windows service(managed) without using named pipe/IPC ?
Any kind of suggession would be helpful. Thanks in advance.
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All,
I have encoded an object that contains a Generic array at it's heart. One of the uses I have for this is to store double[] arrays at each index point. I have done this rather than using multidimensional arrays as the class containing the generic array has additional functionality I need that multidimensional arrays don't provide.
Everything works but complications arise because the double[] arrays that get loaded into the generic array are not full, ie. they need to be updated on the fly. Because of the nested nature of the arrays I want to update I've realised that std indexing won't work. if anyone can offer some guidance on the best approach ere i'd appreciate it. Or, do I have no choice but to unload the array at each index point in order to update it?
A brief snippet of my code for guidance:
public class CircularQueue<t>;
{
private T[] QBuffer; // Generic Array
public T this[int Index] // Indexing code
{
get
{
if ( (Index < 0) || (Index >= QBuffer.Length) )
{
}
return QBuffer[Index];
}
set
{
T Item = value;
Insert(Item, Index);
}
} // End Index
...
}
Declaration:
protected CircularQueue<double[]> CustomData;
Usage:
CustomData.Initialize(SizeOfGenericArray); //Initialize
CustomData.Enqueue(IndexItem); //Add an item(double[])
CustomData[GenericArrayIndex][ItemIndex] = NewValue; //This fails!
So the indexing code I have is useful only for indexing the generic array. Indexing the nested arrays is more of a problem. Any help offered willl be greatly appreciated.
Regards,
Dave
Regards,
Dave
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I don't see anything wrong with the code.
What do you mean when you say that it "fails"? What happens? Do you get a compilation error? A runtime error? In what way does the result differ from what you expected?
Despite everything, the person most likely to be fooling you next is yourself.
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I'm (finally getting around to) having a look at the IDataErrorInfo interface, which has two properties with get accessors. One of them looks like this:
public string this[string columnName]
I haven't seen this syntax in a property before, so: how does it work? Why is there a this? What does it do? Why is [string columnName] surrounded in square brackets? How can this syntax be used in other aspects of one's program?
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This is an Indexer. See this link[^] for more information.
If you have an array (or some other indexable values) in your class, then you can access them directly via an index to your class, instead of accessing the underlying array directly.
regards
modified 12-Sep-18 21:01pm.
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Dear Friends,
In my System is Disabled USB Drive through BIOS and BIOS has Password Set.
now i want to enable and Disable My USB Drive without going to BIOS settings.
is it Pssible to enable and Disable USB Drive Through C# ?
or in some other way?
i have searched about this , in some places thay are mentioning about
Register key value.
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet \Services\UsbStor
at my system it is already ennabled.
how to do that?
Please help me
With Love
Joe
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