VS 2010 Save Picture In Sql-database Or On Hard Disk?
Jan 31, 2011
I have a program for collecting data of people. Now i also have a picture of these people... what is the best thing to do? what is the fastest? the safest?
1. Converting a picture to a bytearray an then insert it into a sql -table (with al ready 5 columns).
2. making an new table on the sql database with just two columns (id-ref, picture-column)
3. or saving a file on to the hard drive? (if nescessary saving the url into the database?)
I was thinking to make an app to save images [or download images] to local hard disk. But to keep it easy, I want this app to create a small picturebox on form to show the thumbnail of downloaded image. Lets say a 5 pictureboxes has to be added with the thumbnails to show the recent downloads. A user can save the location where he wants to save the files on hard disk. A listbox or a dropdown menu will help in categorizing the images, like image1 in friends section, image2 in family section, image3 in others, etc... When the program restarts all the latest 5 thumbnails has to be loaded in pictureboxes and the directory that was chosen. Finally, a button that shows the downloaded images into original image file size one by one or a slide show. Is it possible to make such program?
I made a painting on a picturebox in Visual Basic 2010. Now I wish to save that picture on my harddisk. But pictureBox1.Image.Save("C:MyImage.jpg") does not work.
Imports System.Drawing Imports System.Drawing.Drawing2D Imports System.Drawing.Imaging Imports System.Text Public Class Form [Code] .....
VB.net seem to place my database file into/userprofile/local settings/apps/2.0/data/random/random/appname/data/ folder.Can I define easier location for my published app. I am also worried that when upgrading this database is ignored or something bad happens?
I have following instance of System.Collections.Specialized.NameValueCollection:
Dim UserSelection As New System.Collections.Specialized.NameValueCollection UserSelection.Add("D_Color1", "Black") UserSelection.Add("D_Color2", "Green") UserSelection.Add("D_Color3", "Purple")
I need to save this instance to hard disk and then load it back from hard disk as an instance. How do I do that?
How would I find the letter for the hard disk? e.g C:
Because I know some computers have different letters insetad of C.
Also, on a slightly different topic (I didnt think it was worth starting a new thread for it), I need a program to start during the start up of the computer it is on, am I right in saying I need to create a shortcut (which I think is a .lnk file?) and then put that in the startup folder. I'm doing this in code, but I was wondering what information I need in the shortcut file.
I try to get hard disk Manufacturer name but can't figure out I tried whit wim but what I get is Standard disk drives and not seagate or samsung etc. [code] is there a way to get the manufacturer name by another way?
I am Creating a software which require users to enter the serial key provided by me. Well I want the users to send me the Computer key which how can i interface into my VB.net
After that Computer key I'll be sending them the activation key.Just like many softwares available in the market which does this?
I am using the following code to search files in the hard drive but when it reaches system folder or System Volume Information, it gives error. How can I avoid searching the system folder?
Search Files in hard disk Imports System.IO Public Class Form1 Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click [Code] .....
I am going to develop a antivirus software and i want to scan the files.. so i want to get the files one by one into a Label I Already use this code to get add the files to a listbox But It did not Help For me... Because it is adding Whole Files to a List Box at Ones..
once a class has been persisted on an hard disk with a strem is it neccessary to load the full class to deal with one part of it or is it possible to get just the part of the class i am interested in?
Can anyone explain with program how to extract the serial number or unique ID of the hard disk. i need a clear explained program. i m using some tools but i couldn't really understand how they do it.
I need to know how can I make a program for specific hard disk? I have heard it that programmers use hard disk`s unique number to protect their program. So that user cant use this program there in another pc(hard disk).
i would like to know how locate the hard disk in a computer. For exemple I have 2 hard disk : C: and E: I would like to locate them and list them in a textbox for exemple.
Iam trying to copy file to floppy disk rather than to hard drive. I try to use the code that I used in VB6 but there are so many errors. I gave up. Are any simple code the would do it? New C# Programmer
Is there a way to detect the motion sensor in the hard disk with visual basic .net?I know that hard discs has an acceleration sensor to turn the hard disk off when the computer falls from a height.I have seen one example of this in a game using this sensor.I want to detect the sensor so that my security program can alarm and email me if lets say someone nocks my computer to the floor while im gone.
I have a program that must copy a file to 3 locations, the local hard disk, a USB drive, and a network location. I have the file (about 70mb) loaded into a byte array. My quesion is, since I'm not actively modifying the byte array, can I impliment a form of multithreading where all 3 threads read the same byte array at the same time?
how to write a null bytes onto unused hard disk spaces? I understand that files deleted are still existed on hard disk, I am thinking of may be if I write the null bytes to every single unused bytes so that the unused hard disk space would be become all null bytes, and unused space would no longer contain of those deleted files.
