How to display BLOB Image from database in the TAdvStringGrid with the help of DataSet

Question

I have been making an application at Delphi XE3. I am trying to display values from database to the TAdvStringGrid component placed on the form. I am using data

Answer 1

I realize this is a tad late, but I wanted to contribute. I quite simply did the following, having not to worry about the image format (.jpg, .png etc.). I simply create a TStream object, load the BLOB stream into it, and then I load the Image from the stream. Short and sweet, and it works great for me.

   var
     Stream : TStream;
   begin
     try
       Stream := TStream.Create;
       Stream := Dataset.CreateBlobStream(Dataset.FieldByName('SIGNATURE'), bmRead);
       Stream.Position := 0;
       lblPicSize.Caption := 'Picture is ' + IntToStr(Stream.Size) + ' Bytes';
       if Stream.Size <= 0 then
         pnlPic.Caption := ''
       else
         pnlPic.Caption := '';

       try
         imgSignature.Picture.LoadFromStream(Stream);
       except
         on E:Exception do
           begin
             ShowMessage(E.Message);
           end;
       end;

 finally
   Stream.Free;
 end;
end;