C# Discussion Boards - CodeProject

17-Jun-12 0:43

Abhinav S wrote:
They have a class by that name perhaps.

Yes, I found the article[^] that OP is working from; no idea why he/she is having problems when the source is browsable and downloadable.

converting an audio to text

PramodKumar378716-Jun-12 19:58

PramodKumar3787

16-Jun-12 19:58

hi.
I m new in this field n m trying to convert Audio to text which is comming through mic. so plz suggest me how can i do it and the words also should be exactly what is comming through mic

Re: converting an audio to text

Sandeep Mewara16-Jun-12 21:02

Sandeep Mewara

16-Jun-12 21:02

Have a look at these to get started:
Voice to text C# Library Q&A[^]
Video: Speech-to-text review - YouTube[^]
Similar discussion: How to transform speech to text using C#?[^]

Other way round:
MSDN Code: Text to Speech Converter Sample - C# - Visual Studio 2010[^]

Sandeep Mewara
[My last tip/trick]: Server side Delimiters in ASP.NET[^]

Re: converting an audio to text

Abhinav S16-Jun-12 22:53

Abhinav S

16-Jun-12 22:53

Have a look at the Speech Sdk[^].

Build your own survey - http://www.factile.net

Convert Text to Math operator

ASPnoob16-Jun-12 18:45

ASPnoob

16-Jun-12 18:45

Hello all,
I'd like to know if there is a method in C# that I can call to convert texts into math operators. For instance if I type the text +, -, *, or / into a text box, is there a way to convert them into math operators that the compiler can understand. If there is such a function, if I type a string like 5 - 1 into a text box then call that function, it will convert the text "-" into the minus sign.

I know I will need to convert the text 5 and 1 in the string into numbers before the expression can be evaluated. All I need is to know how to turn text symbols into those four operators and I think I can do the rest. I will try to write functions to handle more complex expressions later. Please point me in the right direction, thanks for your time.

modified 17-Jun-12 5:41am.

Re: Convert Text to Math operator

Dave Kreskowiak16-Jun-12 19:12

Dave Kreskowiak

16-Jun-12 19:12

No, there isn't. You cannot convert the text representation into an actual operator in your code they way you're describing.

Depending on what you're doing and the complexity of your expressions, you may just get away with selecting the operation to perform using a Select Case block on the text and performing the actual operations in an expression dedicated to that operation, or you may have to build a expression evalutation engine using something like Reverse Polish Notation[^].

A guide to posting questions on CodeProject[^]

Dave Kreskowiak

Re: Convert Text to Math operator

Abhinav S16-Jun-12 22:54

Abhinav S

16-Jun-12 22:54

You can do this quite easily by building a very simple parser.
Give it a try and if you face issues, post them here, someone might be able to help you.

Build your own survey - http://www.factile.net

data set

vipul.it@in.com16-Jun-12 0:02

vipul.it@in.com

16-Jun-12 0:02

fill the value in data set

Richard MacCutchan16-Jun-12 0:14

16-Jun-12 0:14

If this is supposed to be a question it is not at all clear what you want. Please try and think about your problem and explain clearly what is or is not happening.

Sandeep Mewara16-Jun-12 7:00

Sandeep Mewara

16-Jun-12 7:00

Perhaps these would help you out:
MSDN: Populating a DataSet from a DataAdapter (ADO.NET)[^]
MSDN: How to: Fill a Dataset with Data[^]

Sandeep Mewara
[My last tip/trick]: Server side Delimiters in ASP.NET[^]

PIEBALDconsult16-Jun-12 8:41

PIEBALDconsult

16-Jun-12 8:41

I never use DataSets; they're horrible.

Dave Kreskowiak16-Jun-12 10:08

Dave Kreskowiak

16-Jun-12 10:08

The gerbils attack at midnight.

A guide to posting questions on CodeProject[^]

Dave Kreskowiak

DaveyM6916-Jun-12 12:56

DaveyM69

16-Jun-12 12:56

Phew - glad I read that, 5 minute warning!

Dave

Binging is like googling, it just feels dirtier.
Please take your VB.NET out of our nice case sensitive forum.
Astonish us. Be exceptional. (Pete O'Hanlon)

BTW, in software, hope and pray is not a viable strategy. (Luc Pattyn)

Dave Kreskowiak16-Jun-12 15:09

Dave Kreskowiak

16-Jun-12 15:09

Wow. We both got a rather weak 1-vote for this. Somebody doesn't have a sense of humor.

A guide to posting questions on CodeProject[^]

Dave Kreskowiak

Keith Barrow16-Jun-12 11:56

Keith Barrow

16-Jun-12 11:56

No, you fill the dataset.

Sort of a cross between Lawrence of Arabia and Dilbert.[^]
-Or-
A Dead ringer for Kate Winslett[^]

Continuous checking processes

kishhr22-Jun-12 8:18

kishhr

22-Jun-12 8:18

do the following code:

DataTable dt = ds.Table["Employee"];
DataRow row = dt.NewRow();
row["id"] = 1;
row["name"] = "Kishan";
..............

GrooverFromHolland15-Jun-12 23:48

15-Jun-12 23:48

Hi all,

I am using a windows form timer to check running processes, but this is not a good way to do it, it is blocking the UI.

Wat would be the best way to do this?

This is what I use:

private void check_RunningProcessTimer_Tick(object sender, EventArgs e)    //interval 100.
       {
           // needed because main program is running in "kiosk mode".
           if (IsProcessRunning("Some_proces"))
           {
               this.SendToBack();
           }
           else
           {
               this.Activate();
           }
          //  Needed to make On screen keyboard button a toggle button.
           if (IsProcessRunning("osk"))
           {
               btnOskKeyBoard.Text ="X" ;
           }
           else
           {
               btnOskKeyBoard.Text = "";
           }

       }

I would also like to do this for other things like checking if Com port is open or closed.

Thanks,

Groover.

Richard MacCutchan16-Jun-12 0:15

16-Jun-12 0:15

You should move this type of function to a background thread so that it does not block the UI.

GrooverFromHolland16-Jun-12 7:20

16-Jun-12 7:20

I have never used threads before and I do not really know how to implement it, please help me on the way.

some questions:

Should I include the public bool that returns the running process in the thread?
Do I have to create a event in the thread for each process change?
How do I deal with with change of Com port change?
I think of using a system timer with autoreset, what would be the timer interval to make sure all the changes are detected?
this is the public bool I use ;

public bool IsProcessRunning(string name)
      {
          foreach (Process clsProcess in Process.GetProcesses())
          {
              if (clsProcess.ProcessName.Contains(name))
              {
                  return true;
              }
          }

          return false;
      }

Please point me in the right direction,

thanks,

Groover

Richard MacCutchan16-Jun-12 21:27

16-Jun-12 21:27

I don't think those questions can be reasonably answered in a forum like this. I would suggest you try a search for some of the articles here that deal with thread programming, and try a few test programs to get familiar with the issues surrounding synchronisation and data transfer between processes.

GrooverFromHolland17-Jun-12 0:38

17-Jun-12 0:38

OK,
I changed Windows forms timer to System.Threading.Timer and Invoked all UI controls in the TimerCallback.

There is one problem left, the:

this.Activate()

is called every timer timeout and this causes a problem with dialogs and message boxes.
I can do a:

runningProcess_Timer.Change(Timeout.Infinite, Timeout.Infinite); //disable timer//

for every call to a dialog or message
and a:

runningProcess_Timer.Change(0, 100); //enable timer

after closing.

I there an event I can create or handle on dialogs and message boxes I can use to disable and enable the timer when these pop-ups need attention?

Groover.

Richard MacCutchan17-Jun-12 1:03

17-Jun-12 1:03

You are not doing it quite right. All the UI code including dialogs and message boxes (which are merely custom dialogs) should run in the main thread without interference or timers. Anything that requires periods of inactivity (such as sleep, wait for external event etc) should run in a background thread. The background threads can communicate with the foreground by using shared memory or sending messages. I'm sure you can find some good samples in the Articles section.

GrooverFromHolland17-Jun-12 3:04

17-Jun-12 3:04

Thank You for Your advice,

I think You don't understand what I am trying to do.
On my main form I have a button that starts the on screen keyboard and if it is running kills it.
There is no problem unless the user uses the close box on the application.
To make the button the right state(close or open) I use the timer to check if the application is running or not.
The same with the Some_process, it has to be topmost until it closes. I have no code for Some_process, it is not my application.
Some_process is killed by a comport event and my code makes my application topmost again and hide the task-bar and start menu.
If the user closes Some_process with the closing button, my application looses focus. To prevent this I have to check if Some_process is running or not.

I have changed the code in my timer handling and it seems not to interfere with any forms an custom message boxes.
Not sure if it interferes with message boxes from System.Windows.Forms MessageBox Class and dialogs.

This is what I have now:

System.Threading.Timer runningProcess_Timer;
		
		runningProcess_Timer = new System.Threading.Timer(new TimerCallback(checkRunningProcesses), null, 0, 100);		
		
		  private void checkRunningProcesses(object obj)
        {
            if (this.IsHandleCreated)
            {
                if (!IsProcessRunning("osk"))
                {
                    this.Invoke(new EventHandler(delegate
                    {
                        btnKeyBoard.Text = "";
                    }));
                }
                else
                {
                    this.Invoke(new EventHandler(delegate
                    {
                        btnKeyBoard.Text = "X";
                    }));
                }

                if (!IsProcessRunning("Some_process"))
                {
                    this.Invoke(new EventHandler(delegate
                    {
                        int i = 0;
                        foreach (Form f in Application.OpenForms)
                        {
                            if (f.Enabled)
                            {
                                i += 1;
                            }
                        }

                        if (i < 2)
                        {
                            this.Activate();
                        }
                    }));
                }
            }
        }

Groover

Richard MacCutchan17-Jun-12 3:11

17-Jun-12 3:11

GrooverFromHolland wrote:
I think You don't understand what I am trying to do.

That is true.