Reg: Loading text file(size 100 MB) in Richtextbox

vishnuvarthan v

Hi,
I am trying to load 100 MB of Text file in rich text box, but the application gets hang or some times it gives out of memory exception.
I tried below

Case1: it is running for long time

fs = new FileStream(FileName, FileMode.OpenOrCreate, FileAccess.ReadWrite);

sr = new StreamReader(fs);

//rtxtFile.AppendText( sr.ReadToEnd());

while (!sr.EndOfStream)

{

rtxtFile.AppendText(sr.ReadLine() + System.Environment.NewLine);

}

Case2: out of memory exception

fs = new FileStream(FileName, FileMode.OpenOrCreate, FileAccess.ReadWrite);

sr = new StreamReader(fs);

rtxtFile.AppendText( sr.ReadToEnd());

anybody give the solution for the above problem;

with reagrds,
Vishnuvarthan.V

4 Replies

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vishnuvarthan v14y ago
Hi,
It is loaded successfully . I loded the file initially in the richtextbox i.e. after selecting the file. But again the problem continues.
i)when searching with keyword - memory out of exception occurs (Find method)
richTextBox1.Find(sSearchText, start, options); memory out of exception occurs (Find method)
ii) when i try to load the second file - memory out of exception occurs.

Is there any alternate to richtextbox control (open source)?
0
rsCode14y ago
I have tried the code in vs2008 as well.but it doesnot gv me any error. Can u check below link,tat could be one of the reason explained http://www.vbforums.com/archive/index.php/t-498365.html
let us know if that solves the issue.

Good Luck
0
vishnuvarthan v14y ago
Hi, I have tried but giving me exception. I can able to load 100 mb text file in vs2003 & vs2005 but it is giving problem in vs2008
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rsCode14y ago
Hi Vishnuvarthan,

Have u tried the below line??

richTextBox1.Text = sr.ReadToEnd();

I have tried in my system with 100 mb text file.It works and loads within seconds.

But if I use while loop it will run for a long time because it reads line by line and takes time until it reaches the end of stream.

Regards
RS
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