Re: c# - C# Discussion Boards

Re: Following Jose Menendez Póo Calendar project

OriginalGriff2-Jul-18 20:51

OriginalGriff

2-Jul-18 20:51

Member 12823445 wrote:
if the class is ever published, or if any of you have access to it in the non compiled version

If it's part of .NET, then it's in the Reference Source[^]

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Re: Following Jose Menendez Póo Calendar project

Eddy Vluggen2-Jul-18 23:21

Eddy Vluggen

2-Jul-18 23:21

To add to what Griff said; you can easily decompile any .NET assembly. I'm using ILSpy, but there are more alternatives.

Bastard Programmer from Hell Suspicious | :suss:

If you can't read my code, try converting it here[^]
"If you just follow the bacon Eddy, wherever it leads you, then you won't have to think about politics." -- Some Bell.

It must parse string numbers to integer but it's out is zero

Member 138946071-Jul-18 20:49

Member 13894607

1-Jul-18 20:49

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApp5
{
    class Parser
    {
        public int res;
        char element_of_arr;
        string text;
        public Parser(string input)
        {
            text = input;
        }
        public int String_Parser()
        {
            for (int i = 0; i != text.Length; i++)
            {
                char element_of_arr = text[i];
                switch (element_of_arr)
                {
                    case '1':
                        res *= 10 + 1;
                        break;
                    case '2':
                        res *= 10 + 2;
                        break;
                    case '3':
                        res *= 10 + 3;
                        break;
                    case '4':
                        res *= 10 + 4;
                        break;
                    case '5':
                        res *= 10 + 5;
                        break;
                    case '6':
                        res *= 10 + 6;
                        break;
                    case '7':
                        res *= 10 + 7;
                        break;
                    case '8':
                        res *= 10 + 8;
                        break;
                    case '9':
                        res *= 10 + 9;
                        break;
                    case '0':
                        res *= 10;
                        break;
                    //case '.':
                    //    res *= 10;
                    //    break;
                }
            }
            return res;
        }
    }
    class Program
    {
        public static void Main(string[] args)
        {
            Console.WriteLine("Write digits");
            string input = Console.ReadLine();
            Console.WriteLine("Try parse it...");
            Parser text = new Parser(input);
            Console.WriteLine(text.String_Parser());
            Console.ReadKey();
        }
    }
}

Re: It must parse string numbers to integer but it's out is zero

Richard MacCutchan1-Jul-18 21:37

Richard MacCutchan

1-Jul-18 21:37

Your calculations are wrong res *= 10 + 3; is the same as res *= 13; But you do not need that switch statement, just replace it with:

res *= 10;
res += element_of_arr - '0';

Re: It must parse string numbers to integer but it's out is zero

OriginalGriff1-Jul-18 21:39

OriginalGriff

1-Jul-18 21:39

res is integer, which is a value type - so it's default value is zero.
When you do this:

res *= 10 + 1;

You are effectively saying this:

res = res * (10 + 1);

Not

res = (res * 10) + 1;

So if you start with zero, you will always get zero as a result.

But is there a good reason why you don't just use int.TryParse:

Console.WriteLine("Try parse it...");
int result;
if (int.TryParse(input, out result))
    {
    Console.WriteLine(result);
    }
else
    {
    Console.WriteLine(string.Format("\"{0}\" is not a valid integer", input));
    }

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Member 1389187630-Jun-18 7:18

Member 13891876

30-Jun-18 7:18

Moving code from form to form

Re: c#

Pete O'Hanlon30-Jun-18 8:03

Pete O'Hanlon

30-Jun-18 8:03

E-i-e-i-o

This space for rent

Re: c#

Dave Kreskowiak30-Jun-18 14:26

Dave Kreskowiak

30-Jun-18 14:26

Your minimalist approach to asking questions and describing problems does nothing for you at all.

It's simply not possible to provide you any helpful information because nobody has any clue what you're talking about!

Asking questions is a skill
CodeProject Forum Guidelines
Google: C# How to debug code
Seriously, go read these articles.

Dave Kreskowiak

Re: c#

#realJSOP2-Jul-18 1:04

#realJSOP

2-Jul-18 1:04

Ctrl-C Ctrl-V

".45 ACP - because shooting twice is just silly" - JSOP, 2010
-----
You can never have too much ammo - unless you're swimming, or on fire. - JSOP, 2010
-----
When you pry the gun from my cold dead hands, be careful - the barrel will be very hot. - JSOP, 2013

Re: c#

Richard Deeming2-Jul-18 7:59

Richard Deeming

2-Jul-18 7:59

He said moving, not copying. Laugh | :laugh:

"These people looked deep within my soul and assigned me a number based on the order in which I joined."
- Homer

Re: c#

Nathan Minier2-Jul-18 8:20

Nathan Minier

2-Jul-18 8:20

ctrl-X ctrl-v, then?

"Never attribute to malice that which can be explained by stupidity."
- Hanlon's Razor

Re: c#

#realJSOP2-Jul-18 8:30

#realJSOP

2-Jul-18 8:30

Using my way, he can go back and re-do the Ctrl-C when he accidently hits Ctrl-C on an empty line in the new file (we've all done it).

Re: c#

Richard Deeming2-Jul-18 8:33

Richard Deeming

2-Jul-18 8:33

Yep - that's a particularly stupid option, and one of the first things I turn off. Smile | :)

"These people looked deep within my soul and assigned me a number based on the order in which I joined."
- Homer

{ get; set; }

Xarzu29-Jun-18 9:17

Xarzu

29-Jun-18 9:17

from time to time, I see some sample code that is handed to me that has a code snippet that looks like this:
<code>public string Name { get; set; }</code>

Does this actually do anything? Does it really make it so that one can set and get the "Name" string variable?

I have always thought that what is required is something like this:
<code>private string name;

public string Name
{
get
{
return this.name;
}
set
{
this.name = value;
}
}</code>

Am I correct?

Please advise.

Re: { get; set; }

harold aptroot29-Jun-18 9:37

harold aptroot

29-Jun-18 9:37

Yes, they are Auto-Implemented Properties (C# Programming Guide) | Microsoft Docs. They basically do the same thing as you're used to writing by hand, but with a field that has some compiler-generated name which is not a legal identifier in C# so you cannot accidentally (nor on purpose) refer to the backing field directly.

Member 1389187629-Jun-18 6:28

Member 13891876

29-Jun-18 6:28

how to create interface loging

Re: c#

Nathan Minier29-Jun-18 6:49

Nathan Minier

29-Jun-18 6:49

Use ILog<t> where : T interface

Or for a real answer that will work, please be more specific.

"There are three kinds of lies: lies, damned lies and statistics."
- Benjamin Disraeli

Re: c#

OriginalGriff29-Jun-18 8:01

OriginalGriff

29-Jun-18 8:01

This is not a good question - we cannot work out from that little what you are trying to do.
Remember that we can't see your screen, access your HDD, or read your mind - we only get exactly what you type to work with.

So stop trying to type as little as possible and help us to help you!

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c# threading. timers

Member 1284917529-Jun-18 0:51

Member 12849175

29-Jun-18 0:51

I am using custom client connection for 10 tcp clients.

bool _flagScanner1Connect = true;
private xyzTranmissionProtocol xyz1TranmissionProtocol = null;
private static readonly object LockWhileConnectingForScanner1 = new object();
internal ICustomClient Scanner1Conn;
System.Threading.Timer _tmrCheck1ClientConn;
public void Start1ScannerConn() { try { _tmrCheck1ClientConn = new System.Threading.Timer(Check1ScannerConn, null, TimeSpan.FromSeconds(0), TimeSpan.FromSeconds(5));
}
catch (Exception )
{

}
}
private void Check1ScannerConn(object state)
{ if (!_flagScanner1Connect) return;
lock (LockWhileConnectingForScanner1) {
if (Scanner1Conn == null || Scanner1Conn.CommunicationState == ClientCommunicationStates.Disconnected) {
try { _tmrCheck1ClientConn.Change(Timeout.Infinite, Timeout.Infinite);
Scanner1Conn = CustomClientFactory.CreateClient(new CustomClientTcpEndPoint(“Scanner IpAdress”, “Scanner Port Number”));
Scanner1Conn.Connected += Scanner1Conn_Connected; ;
Scanner1Conn.Disconnected += Scanner1Conn_Disconnected;
Scanner1Conn.MessageReceived += Scanner1Conn_MessageReceived;
xyz1TranmissionProtocol = new xyzTranmissionProtocol();
Scanner1Conn.TransmissionProtocol = xyz1TranmissionProtocol;
Scanner1Conn.Connect();
//SEND A PING MESSAGE
_tmrCheck1ClientConn.Change(TimeSpan.FromSeconds(5), TimeSpan.FromSeconds(5));

}
catch (Exception )
{
if (_flagScanner1Connect)

try
{
Scanner1Conn?.Disconnect();
}
catch { }
try
{
Scanner1Conn?.Dispose();
}
catch { }
try
{
Scanner1Conn = null;
}
catch { }
}
finally
{
_tmrCheckClientConn.Change(TimeSpan.FromSeconds(5), TimeSpan.FromSeconds(5));
}
}
}
}

I have written 10 different functions for 10 bar code scanners. above code is for 1 scanner. if i use 3 scanners or less than 3 my application will work. but if i use more than 3 scanners then message received events will not work And the application will become very slow. can anyone help me out to solve this issue.

Re: c# threading. timers

Richard Andrew x6430-Jun-18 3:20

Richard Andrew x64

30-Jun-18 3:20

I'll bet that what's going on is that you're experiencing one or more run-time exceptions, but since you're just swallowing them, you have no idea that they are happening.

Remove the empty catch blocks, and you'll get a better idea of what's happening in your code.

The difficult we do right away...
...the impossible takes slightly longer.

How do i allow user to reorder the rows in a form gridview in c#

Dipk1129-Jun-18 0:24

Dipk11

29-Jun-18 0:24

I have a gridview with 2 columns and 5 rows-these are fixed.
I want the user to reorder the rows only not the columns. How can i do this? At present i can just reorder the rows.

Re: How do i allow user to reorder the rows in a form gridview in c#

OriginalGriff29-Jun-18 0:49

OriginalGriff

29-Jun-18 0:49

Sorry?

Dipk11 wrote:
I want the user to reorder the rows only not the columns. How can i do this? At present i can just reorder the rows.

That sounds like it's doing what you wanted it to ...

Remember that we can't see your screen, access your HDD, or read your mind - we only get exactly what you type to work with.

Sent from my Amstrad PC 1640
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Re: How do i allow user to reorder the rows in a form gridview in c#

Dipk1129-Jun-18 0:52

Dipk11

29-Jun-18 0:52

Sorry! My Bad Frown | :(