Read Large File Size Text File?

Jan 17, 2011

I have a text file with tab as delimiter. There are about 20 fields in the text file and the file size is about 150MB-200MB.

I need to filter out each row in the textfile based on its field criteria, For Eg: the i should ignore the particular row if the Field A is empty.

I know that by reading out the text file row by row it will be certainly slow.

how to read out the text file fast and also how to do the file processing for the read out text file?

View 4 Replies


Similar Messages:

Web Forms :: Large Size PDF File Not Opening Browser?

Oct 15, 2010

I have problem in my asp.net application. I have some file in floder (PDF, .doc, ,txt ) i want to open these files in my web browser .

Now my problem is large PDF files are not opeing in my browser even some less size pdf files are opeing prefectly and other files are also working good.

The following code i have wriiten to open the file

[Code]....

View 1 Replies

Architecture :: Read And Analyze A Very Large Log File With High Efficiency And Performance?

Sep 13, 2010

It is a very large .txt file (more than 3M), and produced everyday, the content is user's system log like below:

2007-11-01 18:20:42,983 [4520] INFO GetXXX() SERVICE START
2007-11-01 18:21:42,983 [4520] WARING USER ACCESS DENIED
2007-11-01 18:22:42,983 [4520] ERROR INPUT PARAMETER IS NULL CAN NOT CONVERT TO INT32
2007-11-01 18:23:59,968 [4520] INFO USER LOGOUT

View 14 Replies

Forms Data Controls :: Populate Gridview From A Large Text File?

Jan 26, 2011

I have a very large text file whose data I need to extract and display in a gridview control. The method I'm using now is as follow:

1. Read each line of the textfile using StreamReader, into a String.

2. Split the String and populate the fields of a detail object.

3. Add the detail object to a List.

4. Repeat steps 1 to 3 for each row of the text file.

5. Bind the list to the gridview.

I think most of the time is spent processing the text file data (steps 1, 2 & 3).

Is there any way this can be done quicker and more efficiently? At present, it takes ages to read and process a 76 mb text file.

View 7 Replies

Send Mail When Ever Text File Size Get Change

Mar 12, 2010

in my project i have a requirement of sending mail based on a text file size. i need to send mail when ever that text file size was changed

View 2 Replies

Web Forms :: Automatic File Reading / Check For New File Everyday And If The New File Is In The Folder Read It

Sep 20, 2010

I would like ask you for some ideas how can I write mechanism that will be automatically read files from folder. I don't know how to schedule the write task. I want to check for new file everyday and if the new file is in the folder read it.

View 2 Replies

How To Read And Write Text File

Jan 8, 2010

I want to read and write a txt file but

The process cannot access the file 'D:BelgelerimVisual Studio 2005WebSitesmacrotechCounter.txt' because it is being used by another process.

what is wrong with this

StreamWriter FileWriter;
StreamReader FileReader;
string Countstr;
string str1;
int Len1,i;
FileReader = File.OpenText(Server.MapPath(Page.ResolveUrl("~/Counter.txt")));
FileReader = File.OpenText(Server.MapPath("~/Counter.txt"));
Countstr = FileReader.ReadLine();
FileReader.Close();
FileReader.Dispose();
i = Convert.ToInt32(Countstr) + 1;
Countstr = Convert.ToString(i);
FileWriter = File.CreateText(Server.MapPath("~/Counter.txt"));
FileWriter.WriteLine(Countstr);
FileWriter.Close();

View 10 Replies

Web Forms :: How To Read From Text File Using C#

Mar 21, 2010

I found some code that looks like it will do what I want to do, but the code doesn't work.

[Code]....

The error seems to occur here: mytext.txt

Error Message is: unrecognized escape sequence

I think somehow the syntax with StreamReader is not quite right.

I did something similar in VB and it worked fine. I'm just beginning to learn C#; it's going to be a little while before the training wheels come off.

View 3 Replies

Read Text File On Client

Nov 9, 2010

I have a project of ASP.NET which is a Customer satisfaction Survey, i need to to incorporate the option selected by customer with the a client side text file which i located at the client machine, read a text file on client or should i develop the survey application as window application.

View 7 Replies

How To Read Text File That Store On The Webserver

Jul 15, 2010

I have some code in my default.apsx.cs file that all works except one very small but important piece.. I have the same code in c# consoleapp and it works fine on my local machine.

Here is the code...

[code]...

When i try and run it through visual web developer it seems to feel the file doesnt exits so evaluates the if statement to false and moves. on... I havent specified a path and have the file in the same folder as the default.aspx.cs file.

View 4 Replies

How To Read A Text File And Saved In Database

Nov 13, 2010

How to read a text file and saved in data base

View 1 Replies

How To Set Read Only Property For Text File Through The Code

Mar 31, 2010

I have a txt file, in which read only property is true. When I try to write some text in that file through the vb coding, it's through the error. I have shown the code below.

Dim fs As FileStream = File.OpenWrite(HttpContext.Current.Server.MapPath("Include/CacheKeyFile.txt"))
Dim sw As New StreamWriter(fs)
sw.Write("Menu setup updated by " & value & " on " & DateTime.Now.ToString())
sw.Close()
fs.Close()

I found the cause of the error. If we set the Write access property to false, we can open the file and write it without showing the error messages.

I need to remove the Read only property for a file through the vb. Net code. Is it possible? Can we set the read only for txt file before open and write operation?

View 5 Replies

Read A Text File And Separate The Data

Feb 25, 2011

I want to read a text file and separate the data and write it back to another text file. So the input file content is like 07090000079011110225000 00001000100010118832 032111050111205011110501111022500000FL .... I know that first 3 characters are for CompanyID, next 2 are for Symbol etc. How Can I put it together? I used to write in VB code like this below using a Type and define the width there.(easy to maintain) How can I do that in VB.Net or c#?

[Code]....

So the output will be like CompanyID : 070 Symbol :90 .

View 8 Replies

Read A Text File On Another Server From A Web Page?

Aug 31, 2010

How do I read/write a text file on another server from a web page.I get the error "Access to the path '//Server2/mydatafiles/test.txt' is denied". I do not get the error if I am running the browser on the server where the files exist.I think I need to set permissions on the destination server in some way.

View 4 Replies

Web Forms :: Read Client Side Text File?

Mar 12, 2010

I have to read a client side ini file in Aspx page and use that data in server side processing. refer to a link or any sample if possible.

View 6 Replies

C# - Read The Data From A Text File Stored In The Database?

Apr 15, 2010

I have a text file stored in my sql DB. in that .txt file I have certain numbers like:

99435
87889
33455
33555
34556

How to get the count of these numbers from the txtfile stored in the database? Also to read the file and fetch the number one by one in a string? I am using asp.net (C#)

View 1 Replies

Read Text File And Output One Word At A Time?

Nov 12, 2010

I have a client who wants to read a text file and then output the contents word by word in a slideshow.

View 7 Replies

Ajax File Uploader: Checking File Size Before Uploading To Server?

Dec 23, 2010

With the ajax file uploader, would it be possible to check the size of the image before uploading?Currently, it uploads the file to the server and then lets me know that it's bigger than the limit size.

View 3 Replies

Web Forms :: Getting File Details (size/creation And Modification Dates) Of A Ftp File

Nov 13, 2010

Is this possible to get the details like size, creationdate, modification date of a file hosted at some ftp server? I can download/upload files to ftp directory using ASP.Net but my requirment is to download the last modified file. So can we sort files of a ftp directory by modified date using ASP.Net code?

View 3 Replies

Web Forms :: How To Check File Length Uploaded By Fileupload Control, In Case If File Size Is Greater Then 4 Mb

Jul 26, 2010

i am uploading a file through file upload control , file size has greater then 4 MB, I have to give the proper alert msg to the user that file size exceeding the limit.how to do it , because at server side it is crashed on the IIS and not return to the server to check the file size validation.that how it is possible to validate the file size and give the proper alert messege

View 3 Replies

How To Calculate The File Size Of Uploaded File

Jan 14, 2010

I need to calculate the file size of uploaded file in order to catch System.Web.HttpException: Maximum request length exceeded.

This is my code

[code]....

I changed the file size in web.config.

<system.web>
<httpRuntime maxRequestLength="10240" />

View 1 Replies

How To Get File Size Of Multiple File Download

Nov 15, 2010

I am writing an ASP.NET web application.

I calculate the total size of my PDF file which is mentioned below. What does this return? When I download a 2KB file, it returns a size of 2KB, which is correct. But when I download 2 files each of size 2KB, then the total size it returns is 2.16KB. Is that correct? Should it return 4KB?

[code]....

View 1 Replies

Getting The Full Path Of The File Uploaded Using HTML Inputfile Type To Read The Content Of The File?

May 20, 2010

I would like to use HTML input file type in my aspx page to allow user to browse for a excel file and then read the content of the excel sheet programmatically.If I want to read the excel sheet I need the full path of the file to connect to the excel sheet using asp.net.I do not understand how can I get the full path of the file.I know I can get the filename using postedFile.FileName property.But I need the full path of the file.

View 2 Replies

C# - Can't Read Excel File After Creating It Using File.WriteAllText() Function

May 27, 2010

I have created an excel sheet from datatable using function. I want to read the excel sheet programatically using the below connectionstring. This string works fine for all other excel sheets but not for the one i created using the function. I guess it is because of excel version problem.

OleDbConnection conn= new OleDbConnection("Data Source='" + path +"';provider=Microsoft.Jet.OLEDB.4.0;Extended Properties=Excel 8.0;";);

which i can create an excel sheet such that it is readable again using above query. I cannot use Microsoft InterOp library as it is not supported by my host. I have even changed different encoding formats. Still it doesnt work

[code]....

View 1 Replies

C# - How To Read The Txt File Using The Byte Value To Get The Txt File Content

Apr 17, 2010

i have stored the txt file to sql server database .

i need to read the txt file line by line to get the content in it.

my code :

[code]....

but here i have used the FileStream to read from the Particular path. but i have saved the txt file in byte format into my Database. how to read the txt file using the byte[] value to get the txt file content, instead of using the Path value.

View 2 Replies







Copyrights 2005-15 www.BigResource.com, All rights reserved