I have an example in C# code, but it is using streamWriter. It must be involving with FileSystemObject rite. If yes, what are methods should I use? I want to code using VBScript WSH, and my database is MS SQL Server 2005. Any solution, references, or guide are helpful. using (StreamWriter tw = File.AppendText("c:\\INMS.txt")) { us...
Hello I have a crystalReportViewer and CrystalReportSource on a web form. I need to be able to bind the reportSource at run time to different report files. I have the file data stored in a blob in a DB. The mechanism I am using now is to save the blob to a file and then this.CrystalReportSource1.Report.FileName = myFileName; The is...
Hi, In C#/.NET (on Windows) is there a way to read a "growing" file using a file stream? The length of the file will be very small when the filestream is opened, but the file will be being written to by another thread. If/when the filestream "catches up" to the other thread (i.e. when Read() returns 0 bytes read), I want to pause to all...
I am looking at FILESTREAM attribute in SQL Server to store files in it. I understand it stores the files on hard drive and stores the file pointer/path information in DB. Also, maintains transactional consistency in the process. There also seems to be a limitation "FILESTREAM data can be stored only on local disk volumes" for the FILES...
In my project I have to create some temp files in an USB device, which I want to delete on Closing. So I used a code like this.fcommandHandler = new FileStream(TempFileName, FileMode.CreateNew, FileAccess.ReadWrite, FileShare.ReadWrite, 512, FileOptions.DeleteOnClose); It works fine. But the problem is I want to use one more FileOptio...
How do I read a raw byte array from any file, and write that byte array back into a new file? ...
How do I read a raw byte array from any file... Dim bytes() as Byte ..and then write that byte array back into a new file? I need it as a byte array to do some processing in between. I'm currently using: To read Dim fInfo As New FileInfo(dataPath) Dim numBytes As Long = fInfo.Length Dim fsAs New FileStream(dataPath, FileMode...
Hi, I tried to create byte array blocks from file whil the process was still using the file for writing. Actually I am storing video into file and I would like to create chunks from the same file while recording. The following method was supposed to read blocks of bytes from file: private byte[] getBytesFromFile(File file) throws IOEx...
I'm trying to load text files (.aspx, .cs, html, etc) into a sql server 2008 database. I'm able to load all files that are less than 64 kb so far. I have two questions; How do I get around the 64 kb limit, and is the method I'm using the best way to do this? Thanks for the help. Database: file_length int, file_path varchar(250...
I'm debugging some issues with writing pieces of an object to a file and I've gotten down to the base case of just opening the file and writing "TEST" in it. I'm doing this by something like: static FileStream fs; static BinaryWriter w; fs = new FileStream(filename, FileMode.Create); w = new BinaryWriter(fs); w.Write("test"); w.Close...
Say I want to define a TempFileStream class that creates a temporary file using Path.GetTempFileName() method. A temporary file must be deleted when TempFileStream's object is no longer needed, e.g. closed or disposed: class TempFileStream: FileStream { string m_TempFileName = Path.GetTempFileName(); public TempFileStream(FileMode f...
I have an input stream wrapped in a System.IO.StreamReader... I wish to write the content of the stream to a file (i.e. StreamWriter). The length of the inputstream is unknown. Could be a few bytes and to gigabytes in length. How is this done the easiest that does not take up too much memory? ...
How can I write an Outputstream in a new browser window? Currently, I have the code below. Obviously it opens the stream in the same window. I know I can write the Outputstream to a file and open it in a new window but that isn't an option. protected void openPDF(byte[] dados) { HttpContext contexto = HttpContext.Current; cont...
I've got a file (test.txt) which contains "1234567". However when I try to read it on C# using FileStream.Read, I get only 0s (seven zeroes in this case). Could anyone tell me why? I'm really lost here. Edit: Problem solved, wrong comparision operator. However now it's returning "49505152535455" Edit 2: Done. For the record, I had to o...
Hi, I have tried taking the backup of database containing filestream and it works fine. I have tried restoring it on other server also and that works too. Now, i am facing a problem. Our database is big in size (approx. 320 GB) and it takes time to backup and restore it. Therefore, the client wants us to suggest some technique to redu...
I have successfully set up FILESTREAM on my SQL 2008 server; however I've noticed that even when I have deleted rows containing FILESTREAM data, the physical data file doesn't seem to get deleted. By the physical file, I mean the file in SQLServer's managed directory with a uniqueidentifer as the filename not the original file added to ...
I have a regular .NET application. In this case I have a part that's being imported by MEF. It imports fine, but at a certain point, I want to save a List of objects to a file. In this case it's just saving a list of high scores: class HighScores { static HighScores() { CheckTrust(); } [ImportingConstructor] ...
Hello, I have implemented the filestream feature of SQL Server 2008 in a VB.Net application. I can insert files, and then retrieve/view them just fine. However, I have huge problems trying to update a file. Eg. The user selects a file from the grid which I execute via process.start. If that file is a .txt file, the user may choose to e...
Suppose I have a chain of streams, that does Compression -> Encryption -> File I/O. In C#, using synchronous I/O, it would look something like this: int n=0; byte[] buffer= new byte[2048]; string inputFileName = "input.txt"; string outputFileName = inputFileName + ".compressed.encrypted"; using (FileStream inputFileStream...
Backend: SQL Server 2008 database with FileStream enabled Data Access: Linq to Entities I have thousands of pdf's that currently reside on a file server. I would like to move these pdf's off of the file server and into a SQL Server 2008 database so that I can manage them easier. As a proof of concept (ie - to ensure that the new FileS...