Re: Convert "\\r\\n" into "\r\n" - C# Discussion Boards

17-Feb-14 20:00

Hi, Please help me to convert from "\\r\\n" into "\r\n" .
I am giving input from registry to class i.e. "\r\n" and my code is converting into "\\r\\n". But i need in "\r\n" to get the results.

Kornfeld Eliyahu Peter17-Feb-14 20:06

17-Feb-14 20:06

Can you show the code in your input?
It is very possible that you have no handle of escaped chars as \r (remember it is ONE char the backslash - called escape - is there to tell you we do not talk about a r as is, but we want to assign to it a special meaning).

I'm not questioning your powers of observation; I'm merely remarking upon the paradox of asking a masked man who he is. (V)

Ashfaque Hussain17-Feb-14 23:02

17-Feb-14 23:02

if (SuffixValue != null)
        _RCVData =_SetSerialPort.ReadTo(SuffixValue);
      else
        _RCVData = _SetSerialPort.ReadLine();

I am doing these things...I am passing "\r\n" to variable SuffixValue but in code its coming \\r\\n.

When i do hard coding instead of variable i.e. "\r\n" then its working fine.

Kornfeld Eliyahu Peter17-Feb-14 23:19

17-Feb-14 23:19

As I told - when you hard-code the value your IDE handles the escaped characters (convert \r\n to two characters), however when it comes via some port read it still a character sequence of four characters. You have to check your source (port) how it generates the string. maybe teach it to do in C way or add some handling of your own...

I'm not questioning your powers of observation; I'm merely remarking upon the paradox of asking a masked man who he is. (V)

Ashfaque Hussain17-Feb-14 23:57

17-Feb-14 23:57

SuffixValue = _deviceSettingsKeys.GetValue("ReceiveSuffix", "");

if (SuffixValue != null)
       _RCVData = _SetSerialPort.ReadTo(SuffixValue);
               else
       _RCVData = _SetSerialPort.ReadLine();

Can you fix this, how i should do this.

Kornfeld Eliyahu Peter18-Feb-14 0:01

18-Feb-14 0:01

You should do some string replace...
* find escape character (\)
* check if next character has special meaning after escape
* replace the pair with the real one...

I'm not questioning your powers of observation; I'm merely remarking upon the paradox of asking a masked man who he is. (V)

Ashfaque Hussain18-Feb-14 0:39

18-Feb-14 0:39

I can do that things whatever you are telling, but here problem is when take harcoded value "\r\n" instead of SuffixValue then its working fine, but when i pass use variable then its not working....can you post any way to do it.

Thanks Kornfeld Eliyahu Peter

Pete O'Hanlon17-Feb-14 20:50

Pete O'Hanlon

17-Feb-14 20:50

I'm going to bet that your code isn't really converting it into \\r\\n. I rather suspect that you have put a breakpoint in your code (well done for that), and you are inspecting the value in the debugger - this is why it appears to be incorrect. The debugger shows escape characters as double slash, rather than single slash - but the underlying value is still a single slash.

Ashfaque Hussain17-Feb-14 22:58

17-Feb-14 22:58

No, when i pass \r\n from registry

if (SuffixValue != null)
     _RCVData = _SetSerialPort.ReadTo(SuffixValue);
else
     _RCVData = _SetSerialPort.ReadLine();

From the registry i am taking suffix value "\r\n". When i do hard coding then its working fine:
When i take using variables then its not reading. When i use variable then getting System.TimeoutException: The operation has timed out.

if (SuffixValue != null)
      _RCVData = _SetSerialPort.ReadTo("\r\n");
    else
      _RCVData = _SetSerialPort.ReadLine();

modified 18-Feb-14 6:12am.

Ashfaque Hussain18-Feb-14 0:35

18-Feb-14 0:35

Yes correct exactly i am doing the same what you mention in your comment

Ashfaque Hussain19-Feb-14 1:43

19-Feb-14 1:43

Ok Ok...i am agree with you, what you are telling is correct. But can you run this and check why its not showing the TRUE results:::

class Program
  {
      static void Main(string[] args)
      {
          string check = "324214234\r\n";
          RegistryKey regKey = Registry.LocalMachine.CreateSubKey("SOFTWARE\\MyRegKey\\Settings");
          regKey.SetValue("ReceiveSplChar", @"\r\n");
          string value = regKey.GetValue("ReceiveSplChar").ToString();
          if (check.Contains(value))
              Console.WriteLine("TRUE");
      }
  }

Pete O'Hanlon19-Feb-14 3:09

Pete O'Hanlon

19-Feb-14 3:09

The reason is to do with what you are writing to the registry. By putting @"\r\n", you have told the application to write a slash followed by r followed by a slash followed by an n. These are four separate characters. Change that line to:

regKey.SetValue("ReceiveSplChar", "\r\n");

It will now work.

Datetime can't be change to other format [dd/MM/yyyy] to [MM/dd/yyyy],[yyyy/MM/dd],... like that I am Jquery in asp.net,c#

Anand Gunasekaran17-Feb-14 21:33

Anand Gunasekaran

17-Feb-14 21:33

It may useful to you. [*]

pkarthionline17-Feb-14 17:51

pkarthionline

17-Feb-14 17:51

Hi,
Datetime can't be change to other format [dd/MM/yyyy] to [MM/dd/yyyy],[yyyy/MM/dd],... like that

<pre lang="text">
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="JqueryDate.aspx.cs" Inherits="DtPicker.JqueryDate" %>

<!DOCTYPE html>

<html xmlns="http://www.w3.org/1999/xhtml">
<head >
<title></title>
<script src="Scripts/jquery-1.7.1.min.js"></script>
<script src="Scripts/jquery.jdpicker.js"></script>
<link href="Scripts/jdpicker.css" rel="stylesheet" />

</head>
<script type="text/javascript">
// $(document).ready(function () {

// });

$("#Country").change(function () {
var ddl_value = $('#Country').val();
//$("#test1").val(ddl_value);
$("#dt").val(ddl_value);
location.reload(); // datepicker select to reload
})

$('#dt').jdPicker({
date_format: $("#dt").val()
//date_format:"MM dd YYYY"
})

</script>
<body>
<form id="form1" runat="server">
<select id="Country">
<option value="dd/mm/YYYY">Ind dd/mm/YYYY</option>
<option value="FF dd YYYY">Russia FF dd YYYY</option>
<option value="dd MM YYYY">Qatar dd MM YYYY</option>
<option value="MM dd YYYY">Japan MM dd YYYY</option>
<option value="dd FF YYYY">Singapore dd FF YYYY</option>
<option value="YYYY/mm/dd">Canada YYYY/mm/dd</option>
</select>
<div class="jdpicker_w">
<p>Date:<input type="text" id="dt" size="30" class="jdpicker"/></p>
</div>
</form>
</body>
</html>

</pre>

//=================================================================================================
// JS file
//=================================================================================================

http://jdpicker.paulds.fr/?p=demo

I am using this datetime picker.

how to solve this issue?

Thanks,
Karthikeyan,Bangalore

Re: Datetime can't be change to other format [dd/MM/yyyy] to [MM/dd/yyyy],[yyyy/MM/dd],... like that I am Jquery in asp.net,c#

V.17-Feb-14 19:37

17-Feb-14 19:37

Please use the "code" button to markup your code as such. it will wrap the code in <pre> tags making it clearer to view.

This is how I set the datetimeformat in JQueries datetimepicker:

JavaScript

$('#dts_start').datetimepicker(
    {
        showWeek:true,
        showSecond: true,
        dateFormat: "dd/mm/yy",
        timeFormat: "hh:mm:ss",
        yearRange: "-500:+10",
        changeMonth: true,
        changeYear: true
    }
);

it is actually an overriden datetimepicker. see here : http://trentrichardson.com/examples/timepicker/[^]

You do know that on the JQuery homepage there is a complete API with samples ?

Hope this helps.

V.

(MQOTD rules and previous solutions)

OriginalGriff wrote:
V is absolutely right

Re: Datetime can't be change to other format [dd/MM/yyyy] to [MM/dd/yyyy],[yyyy/MM/dd],... like that I am Jquery in asp.net,c#

Kornfeld Eliyahu Peter17-Feb-14 20:02

Re: Datetime can't be change to other format [dd/MM/yyyy] to [MM/dd/yyyy],[yyyy/MM/dd],... like that I am Jquery in asp.net,c#

17-Feb-14 20:02

Please do not cross post between forums - you already have this question in JS forum, it's place is there...for sure not c#!!!

I'm not questioning your powers of observation; I'm merely remarking upon the paradox of asking a masked man who he is. (V)

Richard Deeming18-Feb-14 0:58

Richard Deeming

18-Feb-14 0:58

Not only have you posted this in the wrong forum, you've already posted it twice in the JavaScript forum, and twice in Quick Answers.

You have already been given several answers, which you seem to have ignored.

You've been a member of this site for nearly seven years. You've had plenty of time to realise that reposting the same question, or posting the same question in different forums, is frowned upon. You only need to annoy five people enough to have them report your account for you to get kicked off the site.

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

how to count 3 seconds before running the code?

Jassim Rahma17-Feb-14 3:31

Jassim Rahma

17-Feb-14 3:31

Hi,

I have a POS software with a txtBarCode textbox. I want when the user scan the bar code and after the textbox was idle for 3 seconds to run find_product() class?

How can I do this please?

also if you have a better idea to perform the same?

Thanks

Technology News @ www.JassimRahma.com

Re: how to count 3 seconds before running the code?

Richard MacCutchan17-Feb-14 4:23

Richard MacCutchan

17-Feb-14 4:23

Use a http://msdn.microsoft.com/en-us/library/system.timers.timer(v=vs.110).aspx[^].

Re: how to count 3 seconds before running the code?

Luojana17-Feb-14 8:08

Luojana

17-Feb-14 8:08

Hi Jassim,

You can make use of DispatcherTimer to act like an stopwatch with trigger, to do some action after some elapsed time.

Code:

var timer = new DispatcherTimer
               {
                   Interval = new TimeSpan(0, 0, 3)//3 seconds
               };
           timer.Tick += timer_Tick;//Subscribe to a method which have functionality to run after Idle time.

void timer_Tick(object sender, object e)
       {
           //Do your operation
       }

Now you can Start/Stop this timer from the place as per requirement as in below snippet.(say after scan/read complete start the timer)

timer.Start();

So after 3 seconds, your timer_Tick method will invoke.

Thanks,

Raj

Characters are missing in Serial Port Communication

Ashfaque Hussain16-Feb-14 19:10