[Webinar] Streamline your web hosting managementRegister Today

x
?
Solved

How to get a file from SqlServer DB

Posted on 2016-09-14
4
Medium Priority
?
90 Views
Last Modified: 2016-10-27
Hi,

I have a table in SqlServer with a field that stores a xm file.
How can get xml file from database to a memory stream for use like the following example, 'ms' is memory stream:

Dim d1 As New DashControl()
d1.LoadFromXml(ms)

best regards
0
Comment
Question by:rflorencio
  • 2
3 Comments
 
LVL 37

Accepted Solution

by:
ste5an earned 2000 total points
ID: 41798068
hmm, why not using the XML data type instead of a blob?

Retrieving Binary Data:
SqlCommand command = new SqlCommand("SELECT pub_id, logo FROM pub_info", connection);
FileStream stream;                          
BinaryWriter writer;                        
int bufferSize = 100;                   
byte[] outByte = new byte[bufferSize];  
long retval;                            
long startIndex = 0;                    
string pubID = "";                     
connection.Open();
SqlDataReader reader = command.ExecuteReader(CommandBehavior.SequentialAccess);
while (reader.Read())
{
  pubID = reader.GetString(0);  
  stream = new FileStream("logo" + pubID + ".bmp", FileMode.OpenOrCreate, FileAccess.Write);
  writer = new BinaryWriter(stream);
  startIndex = 0;
  retval = reader.GetBytes(1, startIndex, outByte, 0, bufferSize);  
  while (retval == bufferSize)
  {
    writer.Write(outByte);
    writer.Flush();   
    startIndex += bufferSize;
    retval = reader.GetBytes(1, startIndex, outByte, 0, bufferSize);
  }
  
  writer.Write(outByte, 0, (int)retval - 1);
  writer.Flush();
  writer.Close();
  stream.Close();
}

reader.Close();
connection.Close();

Open in new window

0
 

Author Comment

by:rflorencio
ID: 41801453
thanks
0
 

Author Comment

by:rflorencio
ID: 41862042
Sorry, my mistaque.
0

Featured Post

Free Tool: Port Scanner

Check which ports are open to the outside world. Helps make sure that your firewall rules are working as intended.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

It was really hard time for me to get the understanding of Delegates in C#. I went through many websites and articles but I found them very clumsy. After going through those sites, I noted down the points in a easy way so here I am sharing that unde…
This article aims to explain the working of CircularLogArchiver. This tool was designed to solve the buildup of log file in cases where systems do not support circular logging or where circular logging is not enabled
There may be issues when you are trying to access Outlook or send & receive emails or due to Outlook crash which leads to corrupt or damaged PST file. To eliminate the corruption from your PST file, you need to repair the corrupt Outlook PST file. U…
Get the source code for a fully functional Access application shell with several popular security features that Access VBA application developers desire, but find difficult or impossible to figure out how to code. You get the source code for managi…
Suggested Courses

590 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question