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

Question

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

vishnuvarthan v · Answer

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)?

rsCode · Answer

I have tried the code in vs2008 as well.but it doesnot gv me any error. Can u check below linktat 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

vishnuvarthan v · Answer

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

rsCode · Answer

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