I've apparently worked myself into a bad coding habit. Here is an example of the code I've been writing: using(StreamReader sr = new StreamReader(File.Open("somefile.txt", FileMode.Open))) { //read file } File.Move("somefile.txt", "somefile.bak"); //can't move, get exception that I the file is open I thought that because the using...
Can anyone see what's wrong with this code? SIZE_BG is 6MB as I am trying to draw a large bitmap image (3366x600). I use malloc to prevent my image from overflowing the stack. I get an access violation error on the call to glDrawPixels(). bgPtr seems to point to the correct data as I checked the first few bytes before calling glDrawPix...
Is there some eficient way how to get length of data in "varbinary(max) filestream" column? I found only samples with conversion to varchar and then calling the "LEN" function. ...
On my local Windows XP machine, I'm not able any more to create databases with FILESTREAM. This error is caused by one of these security updates from MS: KB952004 KB923561 KB961373 KB956572 KB959426 KB960863 Does anybody know how to resolve the problem WITHOUT removing the security updates? ...
I am developing a website for educational domain. I want to store a document (MS Word or text file) in database in binary format using Filestream in SQL Server 2008. but I am unable to retrieve the document in a textbox. My code is as follows: string path = reader.GetString(0); SqlFileStream stream1 = new SqlFileStream(path, (byte[])r...
I'm trying to read an xml file into memory, add a node, then write over the original file. The following code works just fine (it clears the file, then writes the new bytes over the top): var stream:FileStream = new FileStream(); stream.open(file, FileMode.UPDATE); stream.position = 0; stream.truncate(); stream.writeUTFBytes("<?xml ver...
I'm writing a .NET adaptor for a C/C++ library where a method "bar" takes a regular stdio FILE*. Is it possible to build an interface so that managed code user can pass a managed (File)Stream? That is without creating an intermediary buffer and code to pipe the data between. Also does the assumption that bar() reads only make things any ...
I need to display thumbnails of images in a given directory. I use TFileStream to read the image file before loading the image into an image component. The bitmap is then resized to the thumbnail size, and assigned to a TImage component on a TScrollBox. It seems to work ok, but slows down quite a lot with larger images. Is there a fast...
I am attempting to use Filestream in sql server 2008 to store user uploaded images. My problem is that NHibernate will not error, but it also will not save the data into the database. No record is created. The Image class below is a custom class (not to be confused with System.Drawing.Image) public class ImageMap : ClassMap<Image> { ...
I am facing a performance problem while using the FileStream.Write function. I have a console application that i use to read a Base64 string from a file (~ size is 400 KB) using a StreamReader object. I convert this string to a byte array using Convert.FromBase64String. I then write this byte array to a file using the FileStream obj...
Is it possible to cache a binary file in .NET and do normal file operations on cached file? ...
This might seem like a noddy question, but I was looking at this because I heard someone claiming that you must call Close() on a FileStream, even if it is in a using block (and they have code where Close() is being called right at the end of the block). I know that Close() is meant to call Dispose(), but I thought I'd look deeper since...
Real quick question - I must be blind or something. In SQL Server Mgmt Studio, I can check for the level of filestream support currently enabled by EXEC sp_configure filestream_access_level Great, works. But how can I find the Windows share name specified during installation where the filestream data will actually be stored? I can't...
I have read some conflicting reports on the net about whether the 4GB limit of SQL Server Express takes into account the contents of FILESTREAM. Can anyone say for certain citing official documentation whether SQL Server Express storage limit is affected by FILESTREAM contents? ...
I have images stored in my database in a FILESTREAM and I am trying to find out what the best solution is to get that image back out into a web browser. If I was managing the files on the file system myself, the quickest way would just be: Response.TransmitFile(pathToFile); This does not load the file into memory before transmitting ...
Hello all, I developed a small program which was working fine until I made a really minor change in some unrelated part of the code. From that point onwards the program throws an unhandled win32 exception and Microsoft Visual Studio Just in time debugger kicks in. I am using codeblocks and my compiler is the gcc compiler. What is frust...
My SQL Express database has run out of room so I'm migrating my heavy data from the old "image" blob columns to the new (varbinary) "filestream" columns in SQL Server 2008. I was about to write an application to do it, but I thought there may be a clever way to do it in SQL that I hadn't thought of. Does anyone know of a way to achieve...
From what I've read nothing explicitly says you cannot have two FILESTREAM columns in one table, but given that you need a ROWGUIDCOL identifier for the FILESTREAM to work, and you cannot have two of those, is it possible? Can I use the same ROWGUIDCOL but with two different FILESTREAM groups? ...
We bought an "off the shelf" application a lonnng time ago that is capable of storing files as a blob within SQL Server. We've noticed that the database has more than doubled in size within the past six months due to more frequent usage of this blob field by one department. As a result, the application has become painfully slow. I'v...
Hi everyone! In my ASP.NET MVC website, I have to read a txt file with some names and emails separeted by ';'. After that, I have to save each line of this txt file to database. Googling around, I've found some snippets, but in all of them I have to use the txt file path. But, how can I get this path? This file could be anywhere in a ...