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Re: Out of Memory Exception while reading Text File

Keith Barrow29-Jun-09 4:59

Keith Barrow

29-Jun-09 4:59

The problem is because your machine doesn't have enough memory to read the string, probably because the buffer required can't be created.See http://msdn.microsoft.com/en-us/library/system.io.streamreader.readtoend(VS.80).aspx[^]

You'll have more success reading each files in chunks, see

http://msdn.microsoft.com/en-us/library/9kstw824(VS.80).aspx[^]

Hope this helps!

Re: Out of Memory Exception while reading Text File

Luc Pattyn29-Jun-09 5:01

Luc Pattyn

29-Jun-09 5:01

Hi,

how many files (and how many megabytes of accumulated file data) does it take to get the OOM Exception? I suspect you are getting large-heap fragmentation.

Smile | :)

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DISCLAIMER: this message may have been modified by others; it may no longer reflect what I intended, and may contain bad advice; use at your own risk and with extreme care.

Re: Out of Memory Exception while reading Text File

Dan Neely29-Jun-09 7:19

Dan Neely

29-Jun-09 7:19

Luc is probably right about heap fragmentation being the problem.

Instead of creating new strings with each read and flogging the heap to death like this:

string fileText  ="";

while (strReader.EndOfFile())
{
   fileText += strReader.ReadLine();
}

return fileText;

Use a stringBuilder initialized to the size of the file so that you only have a single memory allocation.

stringBuilder fileText = new stringBuilder(sizeOfFile);

while (strReader.EndOfFile())
{
   fileText.AppendLine(strReader.ReadLine());
}

return fileText;

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How to get textbox text lines count?

swetha_insoft29-Jun-09 1:59

swetha_insoft

29-Jun-09 1:59

Textbox is having 3 lines
how to get lines count?
can anyone help me?

Re: How to get textbox text lines count?

padmanabhan N29-Jun-09 2:08

padmanabhan N

29-Jun-09 2:08

//to find number of lines
int lines = textBox1.Lines.Length;
//to find number of words
int words = textBox1.Text.Length;

//Note: If you find any of the answer is correct then vote for it. So that other members will know that the reply is correct....

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Re: How to get textbox text lines count?

swetha_insoft29-Jun-09 2:19

swetha_insoft

29-Jun-09 2:19

Thank you very much.
this code is working fine.

Re: How to get textbox text lines count?

OriginalGriff29-Jun-09 2:40

OriginalGriff

29-Jun-09 2:40

padmanabhan N wrote:
//to find number of words
int words = textBox1.Text.Length;

Is incorrect - it gives the number of characters not words. I do not know of a built in function to give the word count of a text box, but you can do it with a regex:

Regex.Matches(textBox1.Text, @"[\S]+").Count

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Re: How to get textbox text lines count?

Pete O'Hanlon29-Jun-09 2:52

Pete O'Hanlon

29-Jun-09 2:52

padmanabhan N wrote:
//to find number of words
int words = textBox1.Text.Length;

Since when? This finds the number of characters, not the number of words. You'd need to use a regular expression to identify the number of words.

padmanabhan N wrote:
//Note: If you find any of the answer is correct then vote for it. So that other members will know that the reply is correct....

That's a bit arrogant. Your reply is not correct; only part of it is - the other part is completely wrong, and will only cause confusion for anybody who attempts to follow your advice.

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Re: How to get textbox text lines count?

K030629-Jun-09 2:08

K0306

29-Jun-09 2:08

This may be useful
Counting the number of lines in a TextBox[^]

Re: How to get textbox text lines count?

dan!sh 29-Jun-09 2:50

dan!sh

29-Jun-09 2:50

A multiline textbox has lines property. What is the problem with that?

Re: How to get textbox text lines count?

Henry Minute29-Jun-09 6:03

Henry Minute

29-Jun-09 6:03

swetha_insoft wrote:
Textbox is having 3 lines
how to get lines count?

The answer is soooo obviously 3! Smile | :)

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how to use windows service in another project?

Narendra Reddy Vajrala29-Jun-09 1:27

Narendra Reddy Vajrala

29-Jun-09 1:27

Hi Experts,

i created a windows service to insert data in to a sql table.
now i want to call this windows service in another project how can i call this?

i tried to add service reference but it is asking for url
how can i give this?
like webservices, is windows services also contain URL?

please help me out

Thanks In Advance
--Naren

Re: how to use windows service in another project?

himanshu256129-Jun-09 1:50

himanshu2561

29-Jun-09 1:50

Hi,

You can install the window service.It is not like webservices so it does not have any url..

Please read some stuff on google about window services.

himanshu

Re: how to use windows service in another project?

Narendra Reddy Vajrala29-Jun-09 2:03

Narendra Reddy Vajrala

29-Jun-09 2:03

Hi Himanshu,

i installed my service, it is fine am performing start, stop, restart operations.
but am stuck with calling this windows service in another project. Frown | :(

i tried in google but i did not find any information reagrding this to call a windows service in another project.

Re: how to use windows service in another project? [modified]

himanshu256129-Jun-09 2:13

himanshu2561

29-Jun-09 2:13

Hi You can not call window service in any project because it is not like class library.
I am not getting what are you doing with window service. Please explain what is is currently doing and what are you planning to do?

himanshu

modified on Monday, June 29, 2009 8:28 AM

Re: how to use windows service in another project? [modified]

Narendra Reddy Vajrala29-Jun-09 2:27

Narendra Reddy Vajrala

29-Jun-09 2:27

what am trying to do is

i want to insert records into a sqlTable for that i created a method with 4 arguments in windows services class.
inside that method i wrote code to insert those 4 arguments.
i installed this windows service.

from another project i want to call this method
To insert records from a form i called that service like this

WindowsService1.Service1 winService = new WindowsService1.Service1();<br />
            winService.insertValues(txtcustId.Text, txtcustName.Text, txtcustPhone.Text, txtcustAddress.Text);

here insertValues is my method inside windows service, where i wrote insert statement.

is this correct way?

when i tried to build it is giving below error

<br />
Error 2 The type 'System.ServiceProcess.ServiceBase' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.ServiceProcess, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'. C:\Inetpub\wwwroot\WindowsFormsApplication1\WindowsFormsApplication1\Form1.cs 451 13 WindowsFormsApplication1<br />

modified on Monday, June 29, 2009 8:37 AM

Re: how to use windows service in another project?

himanshu256129-Jun-09 2:36

himanshu2561

29-Jun-09 2:36

Hi,
Stop your service from services.msc and check weather you are still able to insert records into your sql table. Just check it and you will find your answer Smile | :)

himanshu

Re: Please check this code

Narendra Reddy Vajrala29-Jun-09 2:52

Narendra Reddy Vajrala

29-Jun-09 2:52

am giving my code sample

<br />
protected override void OnStart(string[] args)<br />
        {<br />
            insertValues(3, "Naresh Kumar", "3658213641", "Begumpet Hyderabad");<br />
        }<br />
<br />
 public void insertValues(int custId, string custName, string custPhone, string custAdd)<br />
        {<br />
            string insertCommand = "Insert into CUSTOMER values ( " + custId + ",'" + custName + "','" + custPhone + "','" + custAdd + "')";<br />
            con.Open();<br />
            cmd = new SqlCommand(insertCommand, con);<br />
            cmd.ExecuteNonQuery();<br />
            con.Close();<br />
        }<br />

when am trying run this service from computer Mangement
is it displaying below alert
"The service on local machine started and stopped. some services stopped automatically if they have no work to do for example the performance logs and alerts service."

please help me out.

Re: Please check this code

himanshu256129-Jun-09 3:04

himanshu2561

29-Jun-09 3:04

Narendra Reddy Vajrala wrote:
"The service on local machine started and stopped. some services stopped automatically if they have no work to do for example the performance logs and alerts service.

This error means there is some error in the code of your window service. You have not done any exception handling.Write Try/Catch block to catch the exception and log that error in event viewer or log file.

himanshu

Re: Please check this code

Narendra Reddy Vajrala29-Jun-09 3:11

Narendra Reddy Vajrala

29-Jun-09 3:11

same error
no change Frown | :(

even i used try catch block.

Re: Please check this code

himanshu256129-Jun-09 3:15

himanshu2561

29-Jun-09 3:15

Hi Have you log your error in log file or somewhere else...
Read error from there and post it.
Also, Do not use window service for this task.

himanshu

Re: how to use windows service in another project?

himanshu256129-Jun-09 2:47

himanshu2561

29-Jun-09 2:47

Hi if you want to achieve this type of functionality than i suggest you to consider webservice.Using window service you will not achieve this. Moreover,there is no point to keep busy your server by making window service.

himanshu

Re: how to use windows service in another project?

Narendra Reddy Vajrala29-Jun-09 2:53

Narendra Reddy Vajrala

29-Jun-09 2:53

ya
actually but i have to do in windows services only.
Frown | :(

Re: how to use windows service in another project?

J4amieC29-Jun-09 3:00

J4amieC

29-Jun-09 3:00