C# Discussion Boards - CodeProject

25-Oct-09 23:18

Hi, all,

I am doing with a custom control in WinForms, and there is one customed integer type property, say, currentLine, declared in that custom control class with the following code:

private int currentLine;

public int CurrentLine
{
    get { return currentLine; }
    set { currentLine = value; }
}

but this property's value should be restricted between 1 and 100.
How to make this happen, so that a value smaller than 1, or bigger than 100 is rejected to be entered in properties window at designer time?
Any suggestions are so much appreciated!! Thanks.

Br!

Sun

Message Closed

25-Oct-09 23:35

stancrm

25-Oct-09 23:35

Message Closed

modified 23-Nov-14 7:30am.

Lyon Sun25-Oct-09 23:45

25-Oct-09 23:45

thank you, stancrm,

I've tried this, I added one method, OnCurrentLineChanged() in the SET of that property, and the method is as follows:

private void OnCurrentLineChanged()
{
      if (currentLine < 1 || currentLine > 100)
      {
          throw new System.ArgumentException("Property value is not valid", "original");
      }
}

However, I don't know for what reason, it doesn't work when I go designer window and try a number like 123.
Any idea with this?

Br!

Sun

Lyon Sun26-Oct-09 0:01

26-Oct-09 0:01

Hi, stancrm,

You are right. I did this exception in the wrong place, and with a wrong exception name as well Roll eyes | :rolleyes:

. I noticed it after I read Sur's reply.
Anyway, Thank you two!! A lot!

Br!

Sun

Abhishek Sur25-Oct-09 23:42

25-Oct-09 23:42

Leapsword Sun wrote:
public int CurrentLine
{
get { return currentLine; }
set { currentLine = value; }
}

change this to

public int CurrentLine
{
     get { return currentLine; }
     set { 
           if(value < 1 || value > 100) throw new ApplicationException("Invalid Input");
            currentLine = value; 
         }
}

This will throw an exception for invalid values. You can modify this according to your need. Just modify the set portion of CurrentLine

Abhishek Sur
Don't forget to click "Good Answer" if you like this Solution.
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Lyon Sun25-Oct-09 23:59

How to get contents of cache memory in c#?

25-Oct-09 23:59

Hi, Sur,

Thank you so much! This solved my problem. Really, thanks a lot!!

Br!

Sun

snakeway42025-Oct-09 23:17

snakeway420

25-Oct-09 23:17

Hello evertbody,

I wanted to know how to find the contents of cache memory in c#.Can anobody give a hint or a code snippet for this problem..

Thanking in advance

Swapnil

Re: How to get contents of cache memory in c#?

Abhishek Sur25-Oct-09 23:34

Opening one file by two processes at same time in C#

25-Oct-09 23:34

are you talking about HttpContext.Current.Cache ??

Or you mean Computer cache memory ?? Confused | :confused:

Abhishek Sur
Don't forget to click "Good Answer" if you like this Solution.
My Latest Articles-->
Microsoft Bing MAP using Javascript
CLR objects in SQL Server 2005
Uncommon C# Keywords/xml>

MikeSharp25-Oct-09 23:05

MikeSharp

25-Oct-09 23:05

Hi,

I'm writing a code where one file is logging data constantly every 2 seconds , which should be opened by other process which keeps updating the log from file.

I have written code , but it is reading only after the logging file is closed , I would appreciate anyone give me some pointers as how can I open same file in 2 processes.

I have opened file using this parameters;

Program 1:

FileStream fileStream = new FileStream(
@"C:\WINDOWS\system32\Logfiles\MSFTPSVC1\ex091021.log",
FileMode.Append,
FileAccess.Write,
FileShare.ReadWrite);

Thanks,

Re: Opening one file by two processes at same time in C#

Not Active25-Oct-09 23:16

Not Active

25-Oct-09 23:16

If I understand your question, you want to open a file for reading in one process while that file is being written to in another process?

http://msdn.microsoft.com/en-us/library/system.threading.readerwriterlock.aspx[^]

only two letters away from being an asset

Re: Opening one file by two processes at same time in C#

Abhishek Sur25-Oct-09 23:29

How to reference a DLL from a custom folder

25-Oct-09 23:29

Well.. It wont be possible to write in both the file at the same instant of time. But you can read from the file from one process and write from another.

Take a look on this :
http://stackoverflow.com/questions/222089/in-c-if-2-processes-are-reading-and-writing-to-the-same-file-what-is-the-best[^]

This might help u.
Smile | :)

Abhishek Sur
Don't forget to click "Good Answer" if you like this Solution.
My Latest Articles-->
Microsoft Bing MAP using Javascript
CLR objects in SQL Server 2005
Uncommon C# Keywords/xml>

hirajhil25-Oct-09 22:22

hirajhil

25-Oct-09 22:22

okay,
we know that we can reference third party DLLs in a Visual studio project. But while referencing we need to set copy local=true. So that the referenced dll is copied to the start up path. But i failed to reference a dll that will be located to some other folder. For example my project is in D:\\MyProject. And i want to reference a dll in C:\MyDLLs, without copying the dll to my prjects start up path.
How can i do that? I have tried many approaches like editing the codebase element in app.config file.

Christian Graus25-Oct-09 22:33

Christian Graus

25-Oct-09 22:33

Why do you need to do that ? The whole paradigm of .NET is to copy dlls locally.

Christian Graus

Driven to the arms of OSX by Vista.

Read my blog to find out how I've worked around bugs in Microsoft tools and frameworks.

hirajhil25-Oct-09 22:36

hirajhil

25-Oct-09 22:36

actually i want to place all required dlls to a separate folder other than the application.startup folder. So that while shipping the product all the executables refer to a same directory of dlls. Are there any methods so that i can change the default folder where the dlls are copied instead of start up path?

Abhishek Sur25-Oct-09 22:52

25-Oct-09 22:52

change the output path for each project class library to your directory, and reference the dlls of your main project from that particular directory.

Also place 3rd party dlls inside that directory and reference it from there.
If 3rd party dlls are installed in GAC, select the dll after being referenced, and go to properties(from 2008 IDE). In the properties window set CopyLocal to true.

Rose | [Rose]

Abhishek Sur
Don't forget to click "Good Answer" if you like this Solution.
My Latest Articles-->
Microsoft Bing MAP using Javascript
CLR objects in SQL Server 2005
Uncommon C# Keywords/xml>

Giorgi Dalakishvili25-Oct-09 22:55

Giorgi Dalakishvili

25-Oct-09 22:55

You can subscribe to AppDomain.AssemblyResolve Event[^] and load the required assembly from file system.

Giorgi Dalakishvili

#region signature
My Articles

Asynchronous Registry Notification Using Strongly-typed WMI Classes in .NET [^]

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PowerShell Cmdlets

satsumatable25-Oct-09 21:02

satsumatable

25-Oct-09 21:02

Hi
I'm trying to create PowerShell Cmdlets from C#, I'm able to create the Cmdlets and register it and it works fine as well. It looks like i need to create a separate class for every Cmdlet, Is it correct? Let's say following code is to create one Cmdlet and if i want to create another Cmdlet called Get-Process do i need to create new class and write?

[Cmdlet(VerbsCommon.Get, "Proc23")]
    public class TouchFileCommand : Cmdlet
    {
        private string path = null;
        [Parameter(Mandatory = true)]
        public string Path
        {
            get
            {
                return path;
            }
            set
            {
                path = value;
            }
        }
        protected override void ProcessRecord()
        {
            if (File.Exists(path))
            {
                //File.SetLastWriteTime(path, DateTime.Now);
               
            }
        }
    }

Thanks for all

Abdaqader25-Oct-09 20:37

Abdaqader

25-Oct-09 20:37

First i thank every one replay to my message
but I demand idea not person helping me in making project
i said 50:50 that mean the idea not defficult and not easy
finaly thanks for you and I still not find the good
and i want heping from any body and i will not forget any body who will help me
action57392@hotmail.com

Christian Graus25-Oct-09 21:17

Christian Graus

25-Oct-09 21:17

I'm not sure what's dumber. Posting a thank you like this, instead of within the thread, or posting your email address, which means that web spiders will find it and spam you.

I got what you meant, I also clarified it. However, your overall request was dumb enough that people thought the worst.

Christian Graus

Driven to the arms of OSX by Vista.

Read my blog to find out how I've worked around bugs in Microsoft tools and frameworks.

Pete O'Hanlon25-Oct-09 22:04

Pete O'Hanlon

25-Oct-09 22:04

Abdaqader wrote:
I demand idea

Oh dear. I appreciate that English isn't your first language, but you don't demand things, you request them. Demand implies a command and, frankly bubba, I don't answer to you.

Abdaqader wrote:
and i want heping from any body and i will not forget any body who will help me

The point is, it's your course. The subject has to be something that you will feel comfortable with. I have no idea what your skill level is. What's easy to me could prove mind blowingly impossible to you.

"WPF has many lovers. It's a veritable porn star!" - Josh Smith

As Braveheart once said, "You can take our freedom but you'll never take our Hobnobs!" - Martin Hughes.

My blog | My articles | MoXAML PowerToys | Onyx

musefan25-Oct-09 23:00

musefan

25-Oct-09 23:00

Why don't you ask the same person who did all your work that got you into your final year? Has you doctor made you cut back on salty intake?

Life goes very fast. Tomorrow, today is already yesterday.

Nagy Vilmos25-Oct-09 23:04

Nagy Vilmos

25-Oct-09 23:04

Abdaqader wrote:
helping me in making project

I've got the answer to your problem! Bunnies! I like bunnies and lets face it who doesn't!

You could write an AI bunny, maybe call it a Rabbot (my little joke there). Just start out simple with the Rabbots hoping about. Then you could add in boy bunnies with blue bow ties, and girl bunnies with pink bonnets. A little bit of inheritance never hurt; unless your mom and sister are one and the same.

Once you've got your different bunny rabbots working you could then try and make them interact and see how long it takes for them to tell you to feck off and do something useful instead of creating lots of dirty bunny pron!

Panic, Chaos, Destruction.
My work here is done.

Richard MacCutchan26-Oct-09 4:29

Richard MacCutchan

26-Oct-09 4:29

, but you may get accused of being over flippant.