Extracting Image Files from SQL Server

Posted: April 11th, 2014 | Author: | Filed under: .Net, MSSQL, Visual Studio | Tags: , , , , | No Comments »

There are a number of different plugins and tools which can export image data in hex format from an MS SQL server to an actual file on the harddrive. If you have Visual Studio installed, however, the easiest way is to just write a small console program to select the data from the image column and save it to a file. For example:

static void Main(string[] args)
{
try
{
SqlConnection thisConnection = new SqlConnection(@”Server=192.168.1.1,1433;database=MyDb;User id=sa;Password=JdjdUD78!;”);
thisConnection.Open();
SqlCommand thisCommand = thisConnection.CreateCommand();
thisCommand.CommandText = “SELECT ImageData FROM [MyDatabase].[dbo].[Images] where ID = 1″;
byte[] imgBytes = (byte[]) thisCommand.ExecuteScalar();
FileStream fs = new FileStream(@”C:\temp\image.jpg”, FileMode.CreateNew, FileAccess.Write);
fs.Write(imgBytes, 0, imgBytes.Length);
fs.Flush();
fs.Close();
thisConnection.Close();
}
catch (SqlException e)
{
Console.WriteLine(e.Message);
}
Console.ReadLine();
}

Subversion revision number in AssemblyInfo.cs

Posted: July 23rd, 2013 | Author: | Filed under: .Net, Subversion, Visual Studio | Tags: , , , , , , | No Comments »
Pre-requisites: Tortoise SVN, Visual Studio
  • Exclude the existing “AssemblyInfo.cs” file from Subversion
  • Rename “AssemblyInfo.cs” to “AssemblyInfo.template
  • Add the Subversion revision keyword to the template file. For example: [assembly : AssemblyVersion("1.0.0.$WCREV$")]
  • Add SubWCRev.exe from the TortoiseSVN bin directory to the project (or add the Tortoise SVN bin folder to your path)
  • In the pre-build event for your project, add the following line (You may need to adjust it to your own project structure): 
    “$(SolutionDir)\lib\SubWCRev\subwcrev.exe” “$(SolutionDir).” “$(ProjectDir)Properties\AssemblyInfo.template” “$(ProjectDir)Properties\AssemblyInfo.cs”
  • Done! The “AssemblyVersion.cs” file should now be auto-generated on every build and the $WCREV$ keyword is replaced with the current SVN revision number on the solution directory.



Getting Debug Output From Scripts on ASPX Pages

Posted: May 18th, 2010 | Author: | Filed under: .Net, Debugging, Scripting, Visual Studio | Tags: , , , , , | No Comments »

To get some useful output when debugging C# or VB scripts on aspx
pages use the following statement in the script:

System.Diagnostics.Debug.WriteLine("We are here!");

In Visual Studio, attach the debugger to the process serving the
page containing the script (typically an IIS server process).
The debug text, “We are here!”, now appears in the output window
whenever the aforementioned statement in the script is executed!